Just six days after this FIXME was added seven years ago, Sam Ravnborg
added the missing feature (37c514e3df "Add missing init section
definitions"), though it ended up being called __initconst.
Let's use it; better late than never.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Tejun Heo <tj@kernel.org>
Adds support for Ceva sata host controller on Xilinx
Zynq UltraScale+ MPSoC.
Signed-off-by: Suneel Garapati <suneel.garapati@xilinx.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Freescale introduced QorIQ series SOCs, like ls1021 ls2085, with AHCI
sata support. It complies with the serial ATA 3.0 specification
and the AHCI 1.3 specification.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Yuantian Tang <Yuantian.Tang@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata fixes from Tejun Heo:
"Two driver fixes. One is for an ahci_mvebu controller config bug and
the other fixes pata_octeon_cf build issue"
* 'for-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
pata_octeon_cf: fix broken build
ata: ahci_mvebu: Fix wrongly set base address for the MBus window setting
MODULE_DEVICE_TABLE is referring to wrong driver's table and breaks the
build. Fix that.
Cc: stable@vger.kernel.org
Signed-off-by: Aaro Koskinen <aaro.koskinen@nokia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Currently, ahci supports only msi and intx. To also support msix the
handling of the irq number need to be changed. The irq number for msix
devices is taken from msi_list instead of pci_dev. Thus, the irq
number of a device needs to be stored in struct ahci_host_priv now.
This allows the host controller to be activated in a generic way.
This change is only intended for ahci drivers. For that reason the irq
number is stored in struct ahci_host_priv used only by ahci drivers.
Thus, the ABI changes only for ahci_host_activate(), but existing ata
drivers (about 50) are unaffected and keep unchanged. All users of
ahci_host_activate() have been updated.
While touching drivers/ata/libahci.c, doing a small code cleanup in
ahci_port_start().
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch refactors ahci_init_interrupts() and moves msi code to a
separate function. Need the split since we add msix initialization in
a later patch. The initialization for msix will be done after msi but
before intx.
Signed-off-by: Robert Richter <rrichter@cavium.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch fix a spelling typo found in libata.xml.
It is because libata.xml is generated from comments
in source, I have to fix it in libata-core.c
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
According to the Armada 38x datasheet, the window base address
registers value is set in bits [31:4] of the register and corresponds
to the transaction address bits [47:20].
Therefore, the 32bit base address value should be shifted right by
20bits and left by 4bits, resulting in 16 bit shift right.
The bug as not been noticed yet because if the memory available on
the platform is less than 2GB, then the base address is zero.
[gregory.clement@free-electrons.com: add extra-explanation]
Fixes: a3464ed2f1 (ata: ahci_mvebu: new driver for Marvell Armada 380
AHCI interfaces)
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Reviewed-by: Omri Itach <omrii@marvell.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
The variable swncq_enabled is bool type. Hence initialize it
with true instead of 1.
Signed-off-by: Shailendra Verma <shailendra.capricorn@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pretty straightforward driver, using the nice library-ization of the
generic ahci_platform driver.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Commit 5d3abf8ff6 ("libata: Fall back to unqueued READ LOG EXT if
the DMA variant fails") allowed us to fall back to the unqueued READ
LOG variant if the queued version failed. However, if the device did
not support the page at all we would end up looping due to a merge
snafu.
Ensure we only take the fallback path once.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
gcc-5.x warns about a preexisting problem in the hpt36x pata driver:
drivers/ata/pata_hpt366.c: In function 'hpt36x_init_one':
drivers/ata/pata_hpt366.c:376:9: warning: assignment discards 'const' qualifier from pointer target type [-Wdiscarded-array-qualifiers]
Other ata drivers have the same problem, as ata_pci_bmdma_init_one
takes a non-const pointer, and they solve it by using a cast to
turn that pointer into a normal non-const pointer.
I also tried to change the ata core code to make host->private_data
a const pointer, but that quickly got out of hand, as some other
drivers expect it to be writable, so I ended up using the same
hack as the others here.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Use syscon/regmap to configure the smc. This allows to avoid using
at91sam9_smc.h and to compile the driver in a multiplatform configuration.
The driver will still not probe until the proper DT bindings are added. That
binding will include an atmel,smc property that is a phandle to the SMC the CF
controller is connected to.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Smatch complains about this potential NULL dereference of "acpi_id".
Fixes: c9802a4be6 ('ata: ahci_xgene: Add AHCI Support for 2nd HW version of APM X-Gene SoC AHCI SATA Host controller.')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata fixes from Tejun Heo:
"Rather big for fixes pull.
- SCC controllers never lived to see the light of the day. Both
libata and ide drivers removed.
- In some configurations, link power management policy changes
sometimes cause delayed spurious PHY events which can develop into
noticeable failures. This has been reported several times over the
years. Gabriele's patches suppress PHY events for a while after
LPM policy changes which should help most of these failures without
causing too much problem for hotplug use cases.
- A few controller specific fixes"
[ Hmm. I don't think removing SSC support is really a "fix", but hey, it
removes a lot of lines of code. Which I like. So ... good riddance ]
* 'for-4.1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: avoton port-disable reset-quirk
ata: select DW_DMAC in case of SATA_DWC
libata: Blacklist queued TRIM on all Samsung 800-series
libata: Ignore spurious PHY event on LPM policy change
libata: Add helper to determine when PHY events should be ignored
ata: ahci_st: fixup layering violations / drvdata errors
Remove celleb-only SCC PATA drivers
This patch enables full AHCI feature support for APM X-Gene SoC SATA
host controller. The following errata's are removed:
1. 2a0bdff6b9 ("ahci-xgene: fix the dma state machine lockup for the
IDENTIFY DEVICE PIO mode command")
2. 09c32aaa36 ("ahci_xgene: Fix the dma state machine lockup for the
ATA_CMD_SMART PIO mode command")
3. 1540035da7 ("ahci_xgene: Implement the xgene_ahci_poll_reg_val to
support PMP")
4. a3a84bc7c8 ("ahci_xgene: Implement the workaround to support PMP
enumeration and discovery")
5. 1102407bb7 ("ahci_xgene: Fix the DMA state machine lockup for the
ATA_CMD_PACKET PIO mode command")
6. 72f79f9e35 ("ahci_xgene: Removing NCQ support from the APM X-Gene
SoC AHCI SATA Host Controller driver")
In addition, enable PMP support for APM X-Gene SoC and enable FBS
support for second generation APM X-Gene SoC.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch adds the support to handle HOST_IRQ_STAT as edge trigger
latch.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch refactors the ahci_single_irq_intr function and also rename
it to ahci_single_level_irq_intr as it handles a level triggered latch.
Signed-off-by: Suman tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Avoton AHCI occasionally sees drive probe timeouts at driver load time.
When this happens SCR_STATUS indicates device detected, but no D2H FIS
reception. Reset the internal link state machines by bouncing
port-enable in the PCS register when this occurs.
Cc: <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Since sata_dwc_460ex.c was moved to generic DMA driver we have to ensure that
user can still compile it.
Fixes: 8b3444852a (sata_dwc_460ex: move to generic DMA driver)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some devices advertise support for the READ/WRITE LOG DMA EXT commands
but fail when we try to issue them. This can lead to queued TRIM being
unintentionally disabled since the relevant feature flag is located in a
general purpose log page.
Fall back to unqueued READ LOG EXT if the DMA variant fails while
reading a log page.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Create a sysfs "trim" attribute for each ata_device that displays
whether DSM TRIM is "unsupported", "unqueued", "forced_unqueued"
(blacklisted) or "queued".
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
We have started seeing SSD firmware updates introduce support for queued
TRIM. Sadly, in most cases this support is completely untested and can
lead to either errors or data corruption.
Add two libata force flags that can be used to either enable or disable
queued TRIM support.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
The queued TRIM problems appear to be generic to Samsung's firmware and
not tied to a particular model. A recent update to the 840 EVO firmware
introduced the same issue as we saw on 850 Pro.
Blacklist queued TRIM on all 800-series drives while we work this issue
with Samsung.
Reported-by: Günter Waller <g.wal@web.de>
Reported-by: Sven Köhler <sven.koehler@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
The platform_device_id is not modified by the driver and core uses it as
const.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
When the LPM policy is set to ATA_LPM_MAX_POWER, the device might
generate a spurious PHY event that cuases errors on the link.
Ignore this event if it occured within 10s after the policy change.
The timeout was chosen observing that on a Dell XPS13 9333 these
spurious events can occur up to roughly 6s after the policy change.
Link: http://lkml.kernel.org/g/3352987.ugV1Ipy7Z5@xps13
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This is a preparation commit that will allow to add other criteria
according to which PHY events should be dropped.
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Brian noticed while working on another SATA driver that uses libahci_platform,
an error in this driver; it tries to the the driver data for its
device, while libata also thinks it can set the driver data. See:
ahci_platform_init_host()
-> ata_host_alloc_pinfo()
-> ata_host_alloc()
-> dev_set_drvdata()
So instead of sticking the IP-specific platform data into drvdata, let's
use the plat_data variable that is reserved for this use.
Addtionally plat_data isn't set until ahci_platform_init_host() has been
called further down in probe(). So re-work the st_ahci_probe_resets and
st_ahci_deassert_resets functions to take ahci_host_priv *hpriv as a
parameter.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Suggested-by: Brian Norris <computersforpeace@gmail.com>
Cc: Srinivas Kandagatla <srinivas.kandagatla@gmail.com>
Cc: Maxime Coquelin <maxime.coquelin@st.com>
Cc: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
- Numerous minor fixes, cleanups etc.
- More EEH work from Gavin to remove its dependency on device_nodes.
- Memory hotplug implemented entirely in the kernel from Nathan Fontenot.
- Removal of redundant CONFIG_PPC_OF by Kevin Hao.
- Rewrite of VPHN parsing logic & tests from Greg Kurz.
- A fix from Nish Aravamudan to reduce memory usage by clamping
nodes_possible_map.
- Support for pstore on powernv from Hari Bathini.
- Removal of old powerpc specific byte swap routines by David Gibson.
- Fix from Vasant Hegde to prevent the flash driver telling you it was flashing
your firmware when it wasn't.
- Patch from Ben Herrenschmidt to add an OPAL heartbeat driver.
- Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan Stancek.
- Some fixes for migration from Tyrel Datwyler.
- A new syscall to switch the cpu endian by Michael Ellerman.
- Large series from Wei Yang to implement SRIOV, reviewed and acked by Bjorn.
- A fix for the OPAL sensor driver from Cédric Le Goater.
- Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman.
- Large series from Daniel Axtens to make our PCI hooks per PHB rather than per
machine.
- Small patch from Sam Bobroff to explicitly abort non-suspended transactions
on syscalls, plus a test to exercise it.
- Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu.
- Small patch to enable the hard lockup detector from Anton Blanchard.
- Fix from Dave Olson for missing L2 cache information on some CPUs.
- Some fixes from Michael Ellerman to get Cell machines booting again.
- Freescale updates from Scott: Highlights include BMan device tree nodes, an
MSI erratum workaround, a couple minor performance improvements, config
updates, and misc fixes/cleanup.
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Merge tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux
Pull powerpc updates from Michael Ellerman:
- Numerous minor fixes, cleanups etc.
- More EEH work from Gavin to remove its dependency on device_nodes.
- Memory hotplug implemented entirely in the kernel from Nathan
Fontenot.
- Removal of redundant CONFIG_PPC_OF by Kevin Hao.
- Rewrite of VPHN parsing logic & tests from Greg Kurz.
- A fix from Nish Aravamudan to reduce memory usage by clamping
nodes_possible_map.
- Support for pstore on powernv from Hari Bathini.
- Removal of old powerpc specific byte swap routines by David Gibson.
- Fix from Vasant Hegde to prevent the flash driver telling you it was
flashing your firmware when it wasn't.
- Patch from Ben Herrenschmidt to add an OPAL heartbeat driver.
- Fix for an oops causing get/put_cpu_var() imbalance in perf by Jan
Stancek.
- Some fixes for migration from Tyrel Datwyler.
- A new syscall to switch the cpu endian by Michael Ellerman.
- Large series from Wei Yang to implement SRIOV, reviewed and acked by
Bjorn.
- A fix for the OPAL sensor driver from Cédric Le Goater.
- Fixes to get STRICT_MM_TYPECHECKS building again by Michael Ellerman.
- Large series from Daniel Axtens to make our PCI hooks per PHB rather
than per machine.
- Small patch from Sam Bobroff to explicitly abort non-suspended
transactions on syscalls, plus a test to exercise it.
- Numerous reworks and fixes for the 24x7 PMU from Sukadev Bhattiprolu.
- Small patch to enable the hard lockup detector from Anton Blanchard.
- Fix from Dave Olson for missing L2 cache information on some CPUs.
- Some fixes from Michael Ellerman to get Cell machines booting again.
- Freescale updates from Scott: Highlights include BMan device tree
nodes, an MSI erratum workaround, a couple minor performance
improvements, config updates, and misc fixes/cleanup.
* tag 'powerpc-4.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (196 commits)
powerpc/powermac: Fix build error seen with powermac smp builds
powerpc/pseries: Fix compile of memory hotplug without CONFIG_MEMORY_HOTREMOVE
powerpc: Remove PPC32 code from pseries specific find_and_init_phbs()
powerpc/cell: Fix iommu breakage caused by controller_ops change
powerpc/eeh: Fix crash in eeh_add_device_early() on Cell
powerpc/perf: Cap 64bit userspace backtraces to PERF_MAX_STACK_DEPTH
powerpc/perf/hv-24x7: Fail 24x7 initcall if create_events_from_catalog() fails
powerpc/pseries: Correct memory hotplug locking
powerpc: Fix missing L2 cache size in /sys/devices/system/cpu
powerpc: Add ppc64 hard lockup detector support
oprofile: Disable oprofile NMI timer on ppc64
powerpc/perf/hv-24x7: Add missing put_cpu_var()
powerpc/perf/hv-24x7: Break up single_24x7_request
powerpc/perf/hv-24x7: Define update_event_count()
powerpc/perf/hv-24x7: Whitespace cleanup
powerpc/perf/hv-24x7: Define add_event_to_24x7_request()
powerpc/perf/hv-24x7: Rename hv_24x7_event_update
powerpc/perf/hv-24x7: Move debug prints to separate function
powerpc/perf/hv-24x7: Drop event_24x7_request()
powerpc/perf/hv-24x7: Use pr_devel() to log message
...
Conflicts:
tools/testing/selftests/powerpc/Makefile
tools/testing/selftests/powerpc/tm/Makefile
- Generic PM domains support update including new PM domain
callbacks to handle device initialization better (Russell King,
Rafael J Wysocki, Kevin Hilman).
- Unified device properties API update including a new mechanism
for accessing data provided by platform initialization code
(Rafael J Wysocki, Adrian Hunter).
- ARM cpuidle update including ARM32/ARM64 handling consolidation
(Daniel Lezcano).
- intel_idle update including support for the Silvermont Core in
the Baytrail SOC and for the Airmont Core in the Cherrytrail and
Braswell SOCs (Len Brown, Mathias Krause).
- New cpufreq driver for Hisilicon ACPU (Leo Yan).
- intel_pstate update including support for the Knights Landing
chip (Dasaratharaman Chandramouli, Kristen Carlson Accardi).
- QorIQ cpufreq driver update (Tang Yuantian, Arnd Bergmann).
- powernv cpufreq driver update (Shilpasri G Bhat).
- devfreq update including Tegra support changes (Tomeu Vizoso,
MyungJoo Ham, Chanwoo Choi).
- powercap RAPL (Running-Average Power Limit) driver update
including support for Intel Broadwell server chips (Jacob Pan,
Mathias Krause).
- ACPI device enumeration update related to the handling of the
special PRP0001 device ID allowing DT-style 'compatible' property
to be used for ACPI device identification (Rafael J Wysocki).
- ACPI EC driver update including limited _DEP support (Lan Tianyu,
Lv Zheng).
- ACPI backlight driver update including a new mechanism to allow
native backlight handling to be forced on non-Windows 8 systems
and a new quirk for Lenovo Ideapad Z570 (Aaron Lu, Hans de Goede).
- New Windows Vista compatibility quirk for Sony VGN-SR19XN (Chen Yu).
- Assorted ACPI fixes and cleanups (Aaron Lu, Martin Kepplinger,
Masanari Iida, Mika Westerberg, Nan Li, Rafael J Wysocki).
- Fixes related to suspend-to-idle for the iTCO watchdog driver and
the ACPI core system suspend/resume code (Rafael J Wysocki, Chen Yu).
- PM tracing support for the suspend phase of system suspend/resume
transitions (Zhonghui Fu).
- Configurable delay for the system suspend/resume testing facility
(Brian Norris).
- PNP subsystem cleanups (Peter Huewe, Rafael J Wysocki).
/
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Merge tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management and ACPI updates from Rafael Wysocki:
"These are mostly fixes and cleanups all over, although there are a few
items that sort of fall into the new feature category.
First off, we have new callbacks for PM domains that should help us to
handle some issues related to device initialization in a better way.
There also is some consolidation in the unified device properties API
area allowing us to use that inferface for accessing data coming from
platform initialization code in addition to firmware-provided data.
We have some new device/CPU IDs in a few drivers, support for new
chips and a new cpufreq driver too.
Specifics:
- Generic PM domains support update including new PM domain callbacks
to handle device initialization better (Russell King, Rafael J
Wysocki, Kevin Hilman)
- Unified device properties API update including a new mechanism for
accessing data provided by platform initialization code (Rafael J
Wysocki, Adrian Hunter)
- ARM cpuidle update including ARM32/ARM64 handling consolidation
(Daniel Lezcano)
- intel_idle update including support for the Silvermont Core in the
Baytrail SOC and for the Airmont Core in the Cherrytrail and
Braswell SOCs (Len Brown, Mathias Krause)
- New cpufreq driver for Hisilicon ACPU (Leo Yan)
- intel_pstate update including support for the Knights Landing chip
(Dasaratharaman Chandramouli, Kristen Carlson Accardi)
- QorIQ cpufreq driver update (Tang Yuantian, Arnd Bergmann)
- powernv cpufreq driver update (Shilpasri G Bhat)
- devfreq update including Tegra support changes (Tomeu Vizoso,
MyungJoo Ham, Chanwoo Choi)
- powercap RAPL (Running-Average Power Limit) driver update including
support for Intel Broadwell server chips (Jacob Pan, Mathias Krause)
- ACPI device enumeration update related to the handling of the
special PRP0001 device ID allowing DT-style 'compatible' property
to be used for ACPI device identification (Rafael J Wysocki)
- ACPI EC driver update including limited _DEP support (Lan Tianyu,
Lv Zheng)
- ACPI backlight driver update including a new mechanism to allow
native backlight handling to be forced on non-Windows 8 systems and
a new quirk for Lenovo Ideapad Z570 (Aaron Lu, Hans de Goede)
- New Windows Vista compatibility quirk for Sony VGN-SR19XN (Chen Yu)
- Assorted ACPI fixes and cleanups (Aaron Lu, Martin Kepplinger,
Masanari Iida, Mika Westerberg, Nan Li, Rafael J Wysocki)
- Fixes related to suspend-to-idle for the iTCO watchdog driver and
the ACPI core system suspend/resume code (Rafael J Wysocki, Chen Yu)
- PM tracing support for the suspend phase of system suspend/resume
transitions (Zhonghui Fu)
- Configurable delay for the system suspend/resume testing facility
(Brian Norris)
- PNP subsystem cleanups (Peter Huewe, Rafael J Wysocki)"
* tag 'pm+acpi-4.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (74 commits)
ACPI / scan: Fix NULL pointer dereference in acpi_companion_match()
ACPI / scan: Rework modalias creation when "compatible" is present
intel_idle: mark cpu id array as __initconst
powercap / RAPL: mark rapl_ids array as __initconst
powercap / RAPL: add ID for Broadwell server
intel_pstate: Knights Landing support
intel_pstate: remove MSR test
cpufreq: fix qoriq uniprocessor build
ACPI / scan: Take the PRP0001 position in the list of IDs into account
ACPI / scan: Simplify acpi_match_device()
ACPI / scan: Generalize of_compatible matching
device property: Introduce firmware node type for platform data
device property: Make it possible to use secondary firmware nodes
PM / watchdog: iTCO: stop watchdog during system suspend
cpufreq: hisilicon: add acpu driver
ACPI / EC: Call acpi_walk_dep_device_list() after installing EC opregion handler
cpufreq: powernv: Report cpu frequency throttling
intel_idle: Add support for the Airmont Core in the Cherrytrail and Braswell SOCs
intel_idle: Update support for Silvermont Core in Baytrail SOC
PM / devfreq: tegra: Register governor on module init
...
The SCC PATA interface is only used by celleb.
celleb has been dropped [1], so drop the drivers.
[1] http://patchwork.ozlabs.org/patch/451730/
CC: "David S. Miller" <davem@davemloft.net>
CC: linux-ide@vger.kernel.org
CC: Valentin Rothberg <valentinrothberg@gmail.com>
CC: mpe@ellerman.id.au
CC: linuxppc-dev@lists.ozlab.org
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata updates from Tejun Heo:
- Hannes's patchset implements support for better error reporting
introduced by the new ATA command spec.
- the deperecated pci_ dma API usages have been replaced by dma_ ones.
- a bunch of hardware specific updates and some cleanups.
* 'for-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ata: remove deprecated use of pci api
ahci: st: st_configure_oob must be called after IP is clocked.
ahci: st: Update the ahci_st DT documentation
ahci: st: Update the DT example for how to obtain the PHY.
sata_dwc_460ex: indent an if statement
libata: Add tracepoints
libata-eh: Set 'information' field for autosense
libata: Implement support for sense data reporting
libata: Implement NCQ autosense
libata: use status bit definitions in ata_dump_status()
ide,ata: Rename ATA_IDX to ATA_SENSE
libata: whitespace fixes in ata_to_sense_error()
libata: whitespace cleanup in ata_get_cmd_descript()
libata: use READ_LOG_DMA_EXT
libata: remove ATA_FLAG_LOWTAG
sata_dwc_460ex: re-use hsdev->dev instead of dwc_dev
sata_dwc_460ex: move to generic DMA driver
sata_dwc_460ex: join messages back
sata: xgene: add ACPI support for APM X-Gene SATA ports
ata: sata_mv: add proper definitions for LP_PHY_CTL register values
* pnp:
PNP: Avoid leaving unregistered device objects in lists
PNP: Convert pnp_lock into a mutex
PNP: tty/serial/8250/8250_fintek: Use module_pnp_driver to register driver
PNP: platform/x86/apple-gmux: Use module_pnp_driver to register driver
PNP: net/sb1000: Use module_pnp_driver to register driver
PNP: media/rc: Use module_pnp_driver to register driver
PNP: ide/ide-pnp: Use module_pnp_driver to register driver
PNP: ata/pata_isapnp: Use module_pnp_driver to register driver
PNP: tpm/tpm_infineon: Use module_pnp_driver to register driver
PNP: Add helper macro for pnp_register_driver boilerplate
PNP / ACPI: Use ACPI_COMPANION_SET() during initialization
Currently the ahci_st driver will hang the system on probe, as the
st_configure_oob function does some register writes before the IP
is clocked. This patch moves the function call to after
ahci_platform_enable_resources (which enables the IP clock), and
resolves the hang.
Addtionally st_ahci_configure_oob should be called in the st_ahci_resume
function, so we also rectify that ensuring it is also called after
the IP clock has been enabled.
Signed-off-by: Peter Griffin <peter.griffin@linaro.org>
Acked-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Maxime Coquelin <maxime.coquelin@st.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
We shuffled some code around in 8b3444852a ('sata_dwc_460ex: move to
generic DMA driver') an accidentally deleted a tab character here. It
causes a Smatch warning "if statement not indented".
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Blacklist queued TRIM on this drive for now.
Reported-by: Stefan Keller <linux-list@zahlenfresser.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
CC: stable@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
Micron has released an updated firmware (MU02) for M510/M550/MX100
drives to fix the issues with queued TRIM. Queued TRIM remains broken on
M500 but is working fine on later drives such as M600 and MX200.
Tweak our blacklist to reflect the above.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=71371
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
Add some tracepoints for ata_qc_issue, ata_qc_complete, and
ata_eh_link_autopsy.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
If NCQ autosense or the sense data reporting feature is enabled
the LBA of the offending command should be stored in the sense
data 'information' field.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
ACS-4 defines a sense data reporting feature set.
This patch implements support for it.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some newer devices support NCQ autosense (cf ACS-4), so we should
be using it to retrieve the sense code and speed up recovery.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
If READ_LOG_DMA_EXT is supported we should try to use it for
reading the log pages.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
sata_sil24 for some reason pukes when tags are allocated round-robin
which helps tag ordered controllers. To work around the issue,
72dd299d50 ("libata: allow sata_sil24 to opt-out of tag ordered
submission") introduced ATA_FLAG_LOWTAG which tells libata tag
allocation to do lowest-first.
However, with the recent switch to blk-mq tag allocation, the liata
tag allocation code path is no longer used and the workaround is now
implemented in the block layer and selected by setting
scsi_host_template->tag_alloc_policy to BLK_TAG_ALLOC_FIFO. See
9269e23496 ("libata: make sata_sil24 use fifo tag allocator").
This leaves ATA_FLAG_LOWTAG withoout any actual user. Remove it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Shaohua Li <shli@fb.com>
Cc: Dan Williams <dan.j.williams@intel.com>
This patch re-uses hsdev->dev which is allocated on heap. Therefore, the
private structure, which is global variable, is reduced by one field.
In one case ap->dev is used and there it seems to be right decision.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The SATA implementation based on two actually different devices, i.e. SATA and
DMA controllers.
For Synopsys DesignWare DMA we have already a generic implementation of the
driver. Thus, the patch converts the code to use DMAEngine framework and
dw_dmac driver.
In future it will be better to split the devices inside DTS as well like it's
done on other platforms.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
It it better to have full message on one line. It simplifies to search for line
in the code by message when debugging.
Note that the lines which will be removed by sequential patch are not fixed
here.
There is no functional change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
ppc has special instruction forms to efficiently load and store values
in non-native endianness. These can be accessed via the arch-specific
{ld,st}_le{16,32}() inlines in arch/powerpc/include/asm/swab.h.
However, gcc is perfectly capable of generating the byte-reversing
load/store instructions when using the normal, generic cpu_to_le*() and
le*_to_cpu() functions eaning the arch-specific functions don't have much
point.
Worse the "le" in the names of the arch specific functions is now
misleading, because they always generate byte-reversing forms, but some
ppc machines can now run a little-endian kernel.
To start getting rid of the arch-specific forms, this patch removes them
from all the old Power Macintosh drivers, replacing them with the
generic byteswappers.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This adds ACPI support for the APM X-Gene SATA ports. When the system
boots using ACPI table, the SATA ports are able to configure using the
values supplied by the ACPI table rather than the DTS.
Signed-off-by: Feng Kan <fkan@apm.com>
Reviewed-by: Hanjun Guo <hanjun.guo@linaro.org>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Commit 9013d64e66 ("ata: sata_mv: fix disk hotplug for Armada
370/XP SoCs") added some manipulation of the LP_PHY_CTL register, but
using magic values. This commit changes the code to use proper
definitions for the LP_PHY_CTL register, which allows to document what
the different bits are doing.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Simon Guinot <simon.guinot@sequanux.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
SAS controller has its own tag allocation, which doesn't directly match to ATA
tag, so SAS and SATA have different code path for ata tags. Originally we use
port->scsi_host (98bd4be1) to destinguish SAS controller, but libsas set
->scsi_host too, so we can't use it for the destinguish, we add a new flag for
this purpose.
Without this patch, the following oops can happen because scsi-mq uses
a host-wide tag map shared among all devices with some integer tag
values >= ATA_MAX_QUEUE. These unexpectedly high tag values cause
__ata_qc_from_tag() to return NULL, which is then dereferenced in
ata_qc_new_init().
BUG: unable to handle kernel NULL pointer dereference at 0000000000000058
IP: [<ffffffff804fd46e>] ata_qc_new_init+0x3e/0x120
PGD 32adf0067 PUD 32adf1067 PMD 0
Oops: 0002 [#1] SMP DEBUG_PAGEALLOC
Modules linked in: iscsi_tcp libiscsi_tcp libiscsi scsi_transport_iscsi igb
i2c_algo_bit ptp pps_core pm80xx libsas scsi_transport_sas sg coretemp
eeprom w83795 i2c_i801
CPU: 4 PID: 1450 Comm: cydiskbench Not tainted 4.0.0-rc3 #1
Hardware name: Supermicro X8DTH-i/6/iF/6F/X8DTH, BIOS 2.1b 05/04/12
task: ffff8800ba86d500 ti: ffff88032a064000 task.ti: ffff88032a064000
RIP: 0010:[<ffffffff804fd46e>] [<ffffffff804fd46e>] ata_qc_new_init+0x3e/0x120
RSP: 0018:ffff88032a067858 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8800ba0d2230 RCX: 000000000000002a
RDX: ffffffff80505ae0 RSI: 0000000000000020 RDI: ffff8800ba0d2230
RBP: ffff88032a067868 R08: 0000000000000201 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800ba0d0000
R13: ffff8800ba0d2230 R14: ffffffff80505ae0 R15: ffff8800ba0d0000
FS: 0000000041223950(0063) GS:ffff88033e480000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b
CR2: 0000000000000058 CR3: 000000032a0a3000 CR4: 00000000000006e0
Stack:
ffff880329eee758 ffff880329eee758 ffff88032a0678a8 ffffffff80502dad
ffff8800ba167978 ffff880329eee758 ffff88032bf9c520 ffff8800ba167978
ffff88032bf9c520 ffff88032bf9a290 ffff88032a0678b8 ffffffff80506909
Call Trace:
[<ffffffff80502dad>] ata_scsi_translate+0x3d/0x1b0
[<ffffffff80506909>] ata_sas_queuecmd+0x149/0x2a0
[<ffffffffa0046650>] sas_queuecommand+0xa0/0x1f0 [libsas]
[<ffffffff804ea544>] scsi_dispatch_cmd+0xd4/0x1a0
[<ffffffff804eb50f>] scsi_queue_rq+0x66f/0x7f0
[<ffffffff803e5098>] __blk_mq_run_hw_queue+0x208/0x3f0
[<ffffffff803e54b8>] blk_mq_run_hw_queue+0x88/0xc0
[<ffffffff803e5c74>] blk_mq_insert_request+0xc4/0x130
[<ffffffff803e0b63>] blk_execute_rq_nowait+0x73/0x160
[<ffffffffa0023fca>] sg_common_write+0x3da/0x720 [sg]
[<ffffffffa0025100>] sg_new_write+0x250/0x360 [sg]
[<ffffffffa0025feb>] sg_write+0x13b/0x450 [sg]
[<ffffffff8032ec91>] vfs_write+0xd1/0x1b0
[<ffffffff8032ee54>] SyS_write+0x54/0xc0
[<ffffffff80689932>] system_call_fastpath+0x12/0x17
tj: updated description.
Fixes: 12cb5ce101 ("libata: use blk taging")
Reported-and-tested-by: Tony Battersby <tonyb@cybernetics.com>
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Removing some boilerplate by using module_pnp_driver instead of calling
register and unregister in the otherwise empty init/exit functions
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
The OF functionality has moved to a common place and be used by many
archs. So we don't need to include the ppc arch specific header files
and depend on PPC_OF option any more. This is a preparation for
killing PPC_OF.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The driver was ignoring limits requested by libata.force. The output
would look like:
fsl-sata ffe18000.sata: Sata FSL Platform/CSB Driver init
ata1: FORCE: PHY spd limit set to 1.5Gbps
ata1: SATA max UDMA/133 irq 74
ata1: Signature Update detected @ 0 msecs
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 310)
Signed-off-by: Martin Hicks <mort@bork.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull block driver changes from Jens Axboe:
"This contains:
- The 4k/partition fixes for brd from Boaz/Matthew.
- A few xen front/back block fixes from David Vrabel and Roger Pau
Monne.
- Floppy changes from Takashi, cleaning the device file creation.
- Switching libata to use the new blk-mq tagging policy, removing
code (and a suboptimal implementation) from libata. This will
throw you a merge conflict, since a bug in the original libata
tagging code was fixed since this code was branched. Trivial.
From Shaohua.
- Conversion of loop to blk-mq, from Ming Lei.
- Cleanup of the io_schedule() handling in bsg from Peter Zijlstra.
He claims it improves on unreadable code, which will cost him a
beer.
- Maintainer update or NDB, now handled by Markus Pargmann.
- NVMe:
- Optimization from me that avoids a kmalloc/kfree per IO for
smaller (<= 8KB) IO. This cuts about 1% of high IOPS CPU
overhead.
- Removal of (now) dead RCU code, a relic from before NVMe was
converted to blk-mq"
* 'for-3.20/drivers' of git://git.kernel.dk/linux-block:
xen-blkback: default to X86_32 ABI on x86
xen-blkfront: fix accounting of reqs when migrating
xen-blkback,xen-blkfront: add myself as maintainer
block: Simplify bsg complete all
floppy: Avoid manual call of device_create_file()
NVMe: avoid kmalloc/kfree for smaller IO
MAINTAINERS: Update NBD maintainer
libata: make sata_sil24 use fifo tag allocator
libata: move sas ata tag allocation to libata-scsi.c
libata: use blk taging
NVMe: within nvme_free_queues(), delete RCU sychro/deferred free
null_blk: suppress invalid partition info
brd: Request from fdisk 4k alignment
brd: Fix all partitions BUGs
axonram: Fix bug in direct_access
loop: add blk-mq.h include
block: loop: don't handle REQ_FUA explicitly
block: loop: introduce lo_discard() and lo_req_flush()
block: loop: say goodby to bio
block: loop: improve performance via blk-mq
This is the usual grab bag of driver updates (hpsa, storvsc, mp2sas,
megaraid_sas, ses) plus an assortment of minor updates. There's also an
update to ufs which adds new phy drivers and finally a new logging
infrastructure for SCSI.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull first round of SCSI updates from James Bottomley:
"This is the usual grab bag of driver updates (hpsa, storvsc, mp2sas,
megaraid_sas, ses) plus an assortment of minor updates.
There's also an update to ufs which adds new phy drivers and finally a
new logging infrastructure for SCSI"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (114 commits)
scsi_logging: return void for dev_printk() functions
scsi: print single-character strings with seq_putc
scsi: merge consecutive seq_puts calls
scsi: replace seq_printf with seq_puts
aha152x: replace seq_printf with seq_puts
advansys: replace seq_printf with seq_puts
scsi: remove SPRINTF macro
sg: remove an unused variable
hpsa: Use local workqueues instead of system workqueues
hpsa: add in P840ar controller model name
hpsa: add in gen9 controller model names
hpsa: detect and report failures changing controller transport modes
hpsa: shorten the wait for the CISS doorbell mode change ack
hpsa: refactor duplicated scan completion code into a new routine
hpsa: move SG descriptor set-up out of hpsa_scatter_gather()
hpsa: do not use function pointers in fast path command submission
hpsa: print CDBs instead of kernel virtual addresses for uncommon errors
hpsa: do not use a void pointer for scsi_cmd field of struct CommandList
hpsa: return failed from device reset/abort handlers
hpsa: check for ctlr lockup after command allocation in main io path
...
Commit 84683a7e08 ("sata_dwc_460ex: enable COMPILE_TEST for the
driver") enabled this driver for non-ppc460-ex platforms, but it was
then disabled for ARM and ARM64 by commit 2de5a9c004 ("sata_dwc_460ex:
disable compilation on ARM and ARM64") because it's too noisy and
broken.
This disabled is entirely, because it's too noisy on x86-64 too, and
there's no point in disabling architectures one by one. At a minimum,
the code isn't 64-bit clean, and even on 32-bit it is questionable
whether it makes sense.
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
09c32aaa36 ("ahci_xgene: Fix the dma state machine lockup for the
ATA_CMD_SMART PIO mode command.") missed 3.19 release. Fold it into
for-3.20.
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch addresses the issue with ATA_CMD_SMART pio mode command for
enumeration and device detection with ATA devices. The X-Gene AHCI
controller has an errata in which it cannot clear the BSY bit after
the PIO setup FIS. The dma state machine enters CMFatalErrorUpdate
state and locks up. It is the same issue as in the commit 2a0bdff6b9
("ahci-xgene: fix the dma state machine lockup for the IDENTIFY DEVICE
PIO mode command").
For example : without this patch it results in READ DMA command failure
as shown below :
[ 126.700072] ata2.00: exception Emask 0x0 SAct 0x0
SErr 0x0 action 0x6 frozen
[ 126.707089] ata2.00: failed command: READ DMA
[ 126.711426] ata2.00: cmd c8/00:08:00:55:57/00:00:00:00:00/e1 tag 1
dma 4096 in
[ 126.711426] res 40/00:ff:00:00:00/00:00:00:00:00/40 Emask
0x4 (timeout)
[ 126.725956] ata2.00: status: { DRDY }
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Reported-by: Mark Langsdorf <mlangsdo@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
of_platform_device_create does not exist if OF_ADDRESS is not configured,
so limit its use accordingly.
Without this fix, the sparc64:allmodconfig build fails with
ERROR: "of_platform_device_create" [drivers/ata/libahci_platform.ko] undefined!
Fixes: c7d7ddee7e ("ata: libahci: Allow using multiple regulators")
Cc: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
The phy_power_off() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
The pci_dev_put() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
The owner module reference of the pata_of_platform's scsi_host is
initialized to pata_platform's one, because pata_of_platform driver
use a scsi_host_template defined in pata_platform. So this drivers
can be unloaded even if the scsi device is being accessed.
This fixes it by propagating the scsi_host_template to pata_of_platform
driver. The scsi_host_template is passed through a new
argument of __pata_platform_probe().
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-ide@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
The owner module reference of the ahci platform's scsi_host is
initialized to libahci_platform's one, because these drivers use a
scsi_host_template defined in libahci_platform. So these drivers can
be unloaded even if the scsi device is being accessed.
This fixes it by pushing the scsi_host_template from libahci_platform
to all leaf drivers. The scsi_host_template is passed through a new
argument of ahci_platform_init_host().
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: linux-ide@vger.kernel.org
Cc: linux-scsi@vger.kernel.org
Function pdc_detect_pll_input_clock uses 'struct timeval'
to measure start and end times, used to compute the pll_clock value.
'struct timeval' on 32-bit systems will have its tv_sec field
overflow in year 2038 and beyond. This patch uses 'ktime_t'
(which uses 64 bits for seconds) for start and end times instead.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tina Ruchandani <ruchandani.tina@gmail.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
libata starts using block tag now, we can use BLK_TAG_ALLOC_FIFO to
solve the sata_sil24 tag bug.
https://bugzilla.kernel.org/show_bug.cgi?id=87101
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Basically move the sas ata tag allocation to libata-scsi.c to make it clear
these staffs are just for sas.
Signed-off-by: Shaohua Li <shli@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
libata uses its own tag management which is duplication and the
implementation is poor. And if we switch to blk-mq, tag is build-in.
It's time to switch to generic taging.
The SAS driver has its own tag management, and looks we can't directly
map the host controler tag to SATA tag. So I just bypassed the SAS case.
I changed the code/variable name for the tag management of libata to
make it self contained. Only sas will use it. Later if libsas implements
its tag management, the tag management code in libata can be deleted
easily.
Cc: Jens Axboe <axboe@fb.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Shaohua Li <shli@fb.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@fb.com>
Commit c7d7ddee7e ("ata: libahci: Allow using multiple regulators")
releases regulators during ahci_platform_put_resources(). That doesn't
work because the function is run as part of the devres machinery. Such
resources are torn down in reverse order. Since the array that holds
pointers to the regulators is allocated using devres after the device
context to which ahci_platform_put_resources() is attached, the memory
will be freed before calling ahci_platform_put_resources() and thereby
causing a use-after-free error.
This commit fixes this by using regular allocations for the array. The
memory can then be freed after the regulators have been released. This
conserves the advantages of using the managed API.
Reported-by: Paul Walmsley <paul@pwsan.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
We should only try to evaluate the cdb if this is an ATAPI
device, for any other device the 'cdb' field and the cdb_len
has no meaning.
Fixes: cbba5b0ee4
Reported-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Tejun Heo <tj@kernel.org>
Tested-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
It is possible for ata_sff_flush_pio_task() to set ap->hsm_task_state to
HSM_ST_IDLE in between the time __ata_sff_port_intr() checks for HSM_ST_IDLE
and before it calls ata_sff_hsm_move() causing ata_sff_hsm_move() to BUG().
This problem is hard to reproduce making this patch hard to verify, but this
fix will prevent the race.
I have not been able to reproduce the problem, but here is a crash dump from
a 2.6.32 kernel.
On examining the ata port's state, its hsm_task_state field has a value of HSM_ST_IDLE:
crash> struct ata_port.hsm_task_state ffff881c1121c000
hsm_task_state = 0
Normally, this should not be possible as ata_sff_hsm_move() was called from ata_sff_host_intr(),
which checks hsm_task_state and won't call ata_sff_hsm_move() if it has a HSM_ST_IDLE value.
PID: 11053 TASK: ffff8816e846cae0 CPU: 0 COMMAND: "sshd"
#0 [ffff88008ba03960] machine_kexec at ffffffff81038f3b
#1 [ffff88008ba039c0] crash_kexec at ffffffff810c5d92
#2 [ffff88008ba03a90] oops_end at ffffffff8152b510
#3 [ffff88008ba03ac0] die at ffffffff81010e0b
#4 [ffff88008ba03af0] do_trap at ffffffff8152ad74
#5 [ffff88008ba03b50] do_invalid_op at ffffffff8100cf95
#6 [ffff88008ba03bf0] invalid_op at ffffffff8100bf9b
[exception RIP: ata_sff_hsm_move+317]
RIP: ffffffff813a77ad RSP: ffff88008ba03ca0 RFLAGS: 00010097
RAX: 0000000000000000 RBX: ffff881c1121dc60 RCX: 0000000000000000
RDX: ffff881c1121dd10 RSI: ffff881c1121dc60 RDI: ffff881c1121c000
RBP: ffff88008ba03d00 R8: 0000000000000000 R9: 000000000000002e
R10: 000000000001003f R11: 000000000000009b R12: ffff881c1121c000
R13: 0000000000000000 R14: 0000000000000050 R15: ffff881c1121dd78
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018
#7 [ffff88008ba03d08] ata_sff_host_intr at ffffffff813a7fbd
#8 [ffff88008ba03d38] ata_sff_interrupt at ffffffff813a821e
#9 [ffff88008ba03d78] handle_IRQ_event at ffffffff810e6ec0
--- <IRQ stack> ---
[exception RIP: pipe_poll+48]
RIP: ffffffff81192780 RSP: ffff880f26d459b8 RFLAGS: 00000246
RAX: 0000000000000000 RBX: ffff880f26d459c8 RCX: 0000000000000000
RDX: 0000000000000001 RSI: 0000000000000000 RDI: ffff881a0539fa80
RBP: ffffffff8100bb8e R8: ffff8803b23324a0 R9: 0000000000000000
R10: ffff880f26d45dd0 R11: 0000000000000008 R12: ffffffff8109b646
R13: ffff880f26d45948 R14: 0000000000000246 R15: 0000000000000246
ORIG_RAX: ffffffffffffff10 CS: 0010 SS: 0018
RIP: 00007f26017435c3 RSP: 00007fffe020c420 RFLAGS: 00000206
RAX: 0000000000000017 RBX: ffffffff8100b072 RCX: 00007fffe020c45c
RDX: 00007f2604a3f120 RSI: 00007f2604a3f140 RDI: 000000000000000d
RBP: 0000000000000000 R8: 00007fffe020e570 R9: 0101010101010101
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffe020e5f0
R13: 00007fffe020e5f4 R14: 00007f26045f373c R15: 00007fffe020e5e0
ORIG_RAX: 0000000000000017 CS: 0033 SS: 002b
Somewhere between the ata_sff_hsm_move() check and the ata_sff_host_intr() check, the value changed.
On examining the other cpus to see what else was running, another cpu was running the error handler
routines:
PID: 326 TASK: ffff881c11014aa0 CPU: 1 COMMAND: "scsi_eh_1"
#0 [ffff88008ba27e90] crash_nmi_callback at ffffffff8102fee6
#1 [ffff88008ba27ea0] notifier_call_chain at ffffffff8152d515
#2 [ffff88008ba27ee0] atomic_notifier_call_chain at ffffffff8152d57a
#3 [ffff88008ba27ef0] notify_die at ffffffff810a154e
#4 [ffff88008ba27f20] do_nmi at ffffffff8152b1db
#5 [ffff88008ba27f50] nmi at ffffffff8152aaa0
[exception RIP: _spin_lock_irqsave+47]
RIP: ffffffff8152a1ff RSP: ffff881c11a73aa0 RFLAGS: 00000006
RAX: 0000000000000001 RBX: ffff881c1121deb8 RCX: 0000000000000000
RDX: 0000000000000246 RSI: 0000000000000020 RDI: ffff881c122612d8
RBP: ffff881c11a73aa0 R8: ffff881c17083800 R9: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffff881c1121c000
R13: 000000000000001f R14: ffff881c1121dd50 R15: ffff881c1121dc60
ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0000
--- <NMI exception stack> ---
#6 [ffff881c11a73aa0] _spin_lock_irqsave at ffffffff8152a1ff
#7 [ffff881c11a73aa8] ata_exec_internal_sg at ffffffff81396fb5
#8 [ffff881c11a73b58] ata_exec_internal at ffffffff81397109
#9 [ffff881c11a73bd8] atapi_eh_request_sense at ffffffff813a34eb
Before it tried to acquire a spinlock, ata_exec_internal_sg() called ata_sff_flush_pio_task().
This function will set ap->hsm_task_state to HSM_ST_IDLE, and has no locking around setting this
value. ata_sff_flush_pio_task() can then race with the interrupt handler and potentially set
HSM_ST_IDLE at a fatal moment, which will trigger a kernel BUG.
v2: Fixup comment in ata_sff_flush_pio_task()
tj: Further updated comment. Use ap->lock instead of shost lock and
use the [un]lock_irq variant instead of the irqsave/restore one.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
The current implementation of the libahci allows using multiple PHYs
but not multiple regulators. This patch adds the support of multiple
regulators. Until now it was mandatory to have a PHY under a subnode,
now a port subnode can contain either a regulator or a PHY (or both).
In order to be able to asociate a port with a regulator the port are
now a platform device in the device tree case.
There was only one driver which used directly the regulator field of
the ahci_host_priv structure. To preserve the bisectability the change
in the ahci_imx driver was done in the same patch.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The phy_ functions handle the NULL pointer case, so there is no need
to skip them if there is a NULL pointer. Moreover, after the error
label there is already no check on the pointer. This patch removes the
unnecessary tests and brings some consistency.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Ronny reports: https://bugzilla.kernel.org/show_bug.cgi?id=87101
"Since commit 8a4aeec8d "libata/ahci: accommodate tag ordered
controllers" the access to the harddisk on the first SATA-port is
failing on its first access. The access to the harddisk on the
second port is working normal.
When reverting the above commit, access to both harddisks is working
fine again."
Maintain tag ordered submission as the default, but allow sata_sil24 to
continue with the old behavior.
Cc: <stable@vger.kernel.org>
Cc: Tejun Heo <tj@kernel.org>
Reported-by: Ronny Hegewald <Ronny.Hegewald@online.de>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
In order to make it possible to restore from hibernation not only in Linux but
also in e.g. U-Boot, we have to extend sata_rcar_{suspend|resume}() to {freeze|
thaw}() PM methods and implement the restore() PM method.
Signed-off-by: Mikhail Ulyanov <mikhail.ulyanov@cogentembedded.com>
[Sergei: killed unused variable, changed the order of initializers, modified
copyrights, renamed, modified changelog.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Until the driver is corrected to stop using mach/at91isam9_smc.h, it won't
compile in a ARCH_MULTIPLATFORM configuration.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch removes a duplicate AHCI-mode SATA Device ID for the Intel Sunrise Point PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
For now disable the compilation of the driver on ARM and ARM64. In the future
we will fix the DMA handling in that driver and re-enable compilation back.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Remove the function ata_do_simple_cmd() that is not used anywhere.
This was partially found by using a static code analysis program called cppcheck.
Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se>
Signed-off-by: Tejun Heo <tj@kernel.org>
According to the Serial ATA AHCI specification, Device Sleep is an
optional feature and as such no errors should be printed if it's
missing. Keep informing users, but use dev_info() instead of dev_err().
Signed-off-by: Gabriele Mazzotta <gabriele.mzt@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
libata already uses an internal buffer, so we should be using
__scsi_format_command() here.
Tested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
As defined, the DRAT (Deterministic Read After Trim) and RZAT (Return
Zero After Trim) flags in the ATA Command Set are unreliable in the
sense that they only define what happens if the device successfully
executed the DSM TRIM command. TRIM is only advisory, however, and the
device is free to silently ignore all or parts of the request.
In practice this renders the DRAT and RZAT flags completely useless and
because the results are unpredictable we decided to disable discard in
MD for 3.18 to avoid the risk of data corruption.
Hardware vendors in the real world obviously need better guarantees than
what the standards bodies provide. Unfortuntely those guarantees are
encoded in product requirements documents rather than somewhere we can
key off of them programatically. So we are compelled to disabling
discard_zeroes_data for all devices unless we explicitly have data to
support whitelisting them.
This patch whitelists SSDs from a few of the main vendors. None of the
whitelists are based on written guarantees. They are purely based on
empirical evidence collected from internal and external users that have
tested or qualified these drives in RAID deployments.
The whitelist is only meant as a starting point and is by no means
comprehensive:
- All intel SSD models except for 510
- Micron M5?0/M600
- Samsung SSDs
- Seagate SSDs
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
The patch converts ->probe() to use devm_kzalloc that simplifies error path.
Note that ata_host_alloc_pinfo() has been using device resources already.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There is no need to print a message about failure of memory allocation. The
caller will get an error code and may print the same.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch fixes the style of usage of a node pointer. There is no functional
change.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There are a lot sparse warnings. Most of them related to __iomem keyword which
sometimes absent when it's needed and vise versa.
The patch fixes most of the warnings.
While at it, remove the redundant sata_dwc_sht.can_queue
initialization to ATA_DEF_QUEUE.
tj: Added description about ATA_DEF_QUEUE init removal.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
To test how the driver could be compiled in the non-native environment let's
enable COMPILE_TEST for it. It would be useful for further work.
This patch enables COMPILE_TEST for the driver and fixes compilation errors on
at least x86 platforms.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Driver core sets it to NULL upon probe failure or release.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull to receive 4aaa71873d ("sata_dwc_460ex: fix resource leak on
error path") so that further cleanup patches can be queued on top.
Signed-off-by: Tejun Heo <tj@kernel.org>
DMA mapped IO should be unmapped on the error path in probe() and
unconditionally on remove().
Fixes: 62936009f3 ([libata] Add 460EX on-chip SATA driver, sata_dwc_460ex)
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Remove the FIXME comment in atapi_eh_request_sense () asking whether
memset of sense buffer is necessary. The buffer may be partially or
fully filled by the device. We want it to be cleared.
Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Due to H/W errata, the controller is unable to save the PMP
field fetched from command header before sending the H2D FIS.
When the device returns the PMP port field in the D2H FIS, there is
a mismatch and results in command completion failure. The workaround
is to write the pmp value to PxFBS.DEV field before issuing any command
to PMP.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch implements the function xgene_ahci_poll_reg_val
to poll PxCI for multiple IDENTIFY DEVICE commands to finish before
restarting the DMA engine.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull to receive the following two ahci_xgene fixes for the planned
xgene PMP support patches.
5c0b8e0de7 ("ahci_xgene: Fix the endianess issue in APM X-Gene SoC AHCI SATA controller driver.")
1102407bb7 ("ahci_xgene: Fix the DMA state machine lockup for the ATA_CMD_PACKET PIO mode command.")
Signed-off-by: Tejun Heo <tj@kernel.org>
The driver sata_dwc_460ex is using this symbol. To build it as a
module we have to have the symbol exported. This patch adds
EXPORT_SYMBOL_GPL() macro for that.
tj: Updated to use EXPORT_SYMBOL_GPL() instead of EXPORT_SYMBOL() as
the only known user is an in-tree driver. Suggested by Sergei.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
This patch addresses the issue with ATA_CMD_PACKET pio mode
command for enumeration and device detection with ATAPI devices.
The X-Gene AHCI controller has an errata in which it cannot clear
the BSY bit after the PIO setup FIS. The dma state machine enters
CMFatalErrorUpdate state and locks up.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch fixes the big endian mode issue with function
xgene_ahci_read_id.
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Changes the spelling typos of removeable to removable where
ata_id_removeable is defined in ata.h and called in libata-scsi.c
respectively.
Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
- Fix a regression in leds-gpio introduced by a recent commit that
inadvertently changed the name of one of the properties used by
the driver (Fabio Estevam).
- Fix a regression in the ACPI backlight driver introduced by a
recent fix that missed one special case that had to be taken
into account (Aaron Lu).
- Drop the level of some new kernel messages from the ACPI core
introduced by a recent commit to KERN_DEBUG which they should
have used from the start and drop some other unuseful KERN_ERR
messages printed by ACPI (Rafael J Wysocki).
- Revert an incorrect commit modifying the cpupower tool
(Prarit Bhargava).
- Fix two regressions introduced by recent commits in the OPP
library and clean up some existing minor issues in that code
(Viresh Kumar).
- Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout
the tree (or drop it where that can be done) in order to make
it possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki,
Ulf Hansson, Ludovic Desroches). There will be one more
"CONFIG_PM_RUNTIME removal" batch after this one, because some
new uses of it have been introduced during the current merge
window, but that should be sufficient to finally get rid of it.
- Make the ACPI EC driver more robust against race conditions
related to GPE handler installation failures (Lv Zheng).
- Prevent the ACPI device PM core code from attempting to
disable GPEs that it has not enabled which confuses ACPICA
and makes it report errors unnecessarily (Rafael J Wysocki).
- Add a "force" command line switch to the intel_pstate driver
to make it possible to override the blacklisting of some
systems in that driver if needed (Ethan Zhao).
- Improve intel_pstate code documentation and add a MAINTAINERS
entry for it (Kristen Carlson Accardi).
- Make the ACPI fan driver create cooling device interfaces
witn names that reflect the IDs of the ACPI device objects
they are associated with, except for "generic" ACPI fans
(PNP ID "PNP0C0B"). That's necessary for user space thermal
management tools to be able to connect the fans with the
parts of the system they are supposed to be cooling properly.
From Srinivas Pandruvada.
/
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Merge tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
"These are regression fixes (leds-gpio, ACPI backlight driver,
operating performance points library, ACPI device enumeration
messages, cpupower tool), other bug fixes (ACPI EC driver, ACPI device
PM), some cleanups in the operating performance points (OPP)
framework, continuation of CONFIG_PM_RUNTIME elimination, a couple of
minor intel_pstate driver changes, a new MAINTAINERS entry for it and
an ACPI fan driver change needed for better support of thermal
management in user space.
Specifics:
- Fix a regression in leds-gpio introduced by a recent commit that
inadvertently changed the name of one of the properties used by the
driver (Fabio Estevam).
- Fix a regression in the ACPI backlight driver introduced by a
recent fix that missed one special case that had to be taken into
account (Aaron Lu).
- Drop the level of some new kernel messages from the ACPI core
introduced by a recent commit to KERN_DEBUG which they should have
used from the start and drop some other unuseful KERN_ERR messages
printed by ACPI (Rafael J Wysocki).
- Revert an incorrect commit modifying the cpupower tool (Prarit
Bhargava).
- Fix two regressions introduced by recent commits in the OPP library
and clean up some existing minor issues in that code (Viresh
Kumar).
- Continue to replace CONFIG_PM_RUNTIME with CONFIG_PM throughout the
tree (or drop it where that can be done) in order to make it
possible to eliminate CONFIG_PM_RUNTIME (Rafael J Wysocki, Ulf
Hansson, Ludovic Desroches).
There will be one more "CONFIG_PM_RUNTIME removal" batch after this
one, because some new uses of it have been introduced during the
current merge window, but that should be sufficient to finally get
rid of it.
- Make the ACPI EC driver more robust against race conditions related
to GPE handler installation failures (Lv Zheng).
- Prevent the ACPI device PM core code from attempting to disable
GPEs that it has not enabled which confuses ACPICA and makes it
report errors unnecessarily (Rafael J Wysocki).
- Add a "force" command line switch to the intel_pstate driver to
make it possible to override the blacklisting of some systems in
that driver if needed (Ethan Zhao).
- Improve intel_pstate code documentation and add a MAINTAINERS entry
for it (Kristen Carlson Accardi).
- Make the ACPI fan driver create cooling device interfaces witn
names that reflect the IDs of the ACPI device objects they are
associated with, except for "generic" ACPI fans (PNP ID "PNP0C0B").
That's necessary for user space thermal management tools to be able
to connect the fans with the parts of the system they are supposed
to be cooling properly. From Srinivas Pandruvada"
* tag 'pm+acpi-3.19-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (32 commits)
MAINTAINERS: add entry for intel_pstate
ACPI / video: update the skip case for acpi_video_device_in_dod()
power / PM: Eliminate CONFIG_PM_RUNTIME
NFC / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
SCSI / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / EC: Fix unexpected ec_remove_handlers() invocations
Revert "tools: cpupower: fix return checks for sysfs_get_idlestate_count()"
tracing / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
x86 / PM: Replace CONFIG_PM_RUNTIME in io_apic.c
PM: Remove the SET_PM_RUNTIME_PM_OPS() macro
mmc: atmel-mci: use SET_RUNTIME_PM_OPS() macro
PM / Kconfig: Replace PM_RUNTIME with PM in dependencies
ARM / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
sound / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
phy / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
video / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
tty / PM: Replace CONFIG_PM_RUNTIME with CONFIG_PM
spi: Replace CONFIG_PM_RUNTIME with CONFIG_PM
ACPI / PM: Do not disable wakeup GPEs that have not been enabled
ACPI / utils: Drop error messages from acpi_evaluate_reference()
...
Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes, just
removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There are
some ath9k patches coming in through this tree that have been acked by
the wireless maintainers as they relied on the debugfs changes.
Everything has been in linux-next for a while.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core update from Greg KH:
"Here's the set of driver core patches for 3.19-rc1.
They are dominated by the removal of the .owner field in platform
drivers. They touch a lot of files, but they are "simple" changes,
just removing a line in a structure.
Other than that, a few minor driver core and debugfs changes. There
are some ath9k patches coming in through this tree that have been
acked by the wireless maintainers as they relied on the debugfs
changes.
Everything has been in linux-next for a while"
* tag 'driver-core-3.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (324 commits)
Revert "ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries"
fs: debugfs: add forward declaration for struct device type
firmware class: Deletion of an unnecessary check before the function call "vunmap"
firmware loader: fix hung task warning dump
devcoredump: provide a one-way disable function
device: Add dev_<level>_once variants
ath: ath9k: use debugfs_create_devm_seqfile() helper for seq_file entries
ath: use seq_file api for ath9k debugfs files
debugfs: add helper function to create device related seq_file
drivers/base: cacheinfo: remove noisy error boot message
Revert "core: platform: add warning if driver has no owner"
drivers: base: support cpu cache information interface to userspace via sysfs
drivers: base: add cpu_device_create to support per-cpu devices
topology: replace custom attribute macros with standard DEVICE_ATTR*
cpumask: factor out show_cpumap into separate helper function
driver core: Fix unbalanced device reference in drivers_probe
driver core: fix race with userland in device_add()
sysfs/kernfs: make read requests on pre-alloc files use the buffer.
sysfs/kernfs: allow attributes to request write buffer be pre-allocated.
fs: sysfs: return EGBIG on write if offset is larger than file size
...
After commit b2b49ccbdd (PM: Kconfig: Set PM_RUNTIME if PM_SLEEP is
selected) PM_RUNTIME is always set if PM is set, so Kconfig options
depending on CONFIG_PM_RUNTIME may now be changed to depend on
CONFIG_PM.
Replace PM_RUNTIME with PM in Kconfig dependencies throughout the
tree.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Tejun Heo <tj@kernel.org>
Pull libata changes from Tejun Heo:
"The only interesting piece is the support for shingled drives. The
changes in libata layer are minimal. All it does is identifying the
new class of device and report upwards accordingly"
* 'for-3.19' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: Remove FIXME comment in atapi_request_sense()
sata_rcar: Document deprecated "renesas,rcar-sata"
sata_rcar: Add clocks to sata_rcar bindings
ahci_sunxi: Make AHCI_HFLAG_NO_PMP flag configurable with a module option
libata-scsi: Update SATL for ZAC drives
libata: Implement ATA_DEV_ZAC
libsas: use ata_dev_classify()
This patch is the usual mix of driver updates (srp, ipr, scsi_debug, NCR5380,
fnic, 53c974, ses, wd719x, hpsa, megaraid_sas). Of those, wd7a9x is new and
53c974 is a rewrite of the old tmscsim driver and the extensive work by Finn
Thain rewrites all the NCR5380 based drivers. There's also extensive
infrastructure updates: a new logging infrastructure for sense information and
a rewrite of the tagged command queue API and an assortment of minor updates.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This patch is the usual mix of driver updates (srp, ipr, scsi_debug,
NCR5380, fnic, 53c974, ses, wd719x, hpsa, megaraid_sas).
Of those, wd7a9x is new and 53c974 is a rewrite of the old tmscsim
driver and the extensive work by Finn Thain rewrites all the NCR5380
based drivers.
There's also extensive infrastructure updates: a new logging
infrastructure for sense information and a rewrite of the tagged
command queue API and an assortment of minor updates"
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (183 commits)
scsi: set fmt to NULL scsi_extd_sense_format() by default
libsas: remove task_collector mode
wd719x: remove dma_cache_sync call
scsi_debug: add Report supported opcodes+tmfs; Compare and write
scsi_debug: change SCSI command parser to table driven
scsi_debug: add Capacity Changed Unit Attention
scsi_debug: append inject error flags onto scsi_cmnd object
scsi_debug: pinpoint invalid field in sense data
wd719x: Add firmware documentation
wd719x: Introduce Western Digital WD7193/7197/7296 PCI SCSI card driver
eeprom-93cx6: Add (read-only) support for 8-bit mode
esas2r: fix an oversight in setting return value
esas2r: fix an error path in esas2r_ioctl_handler
esas2r: fir error handling in do_fm_api
scsi: add SPC-3 command definitions
scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16
scsi: remove scsi_driver owner field
scsi: move scsi_dispatch_cmd to scsi_lib.c
scsi: stop passing a gfp_mask argument down the command setup path
scsi: remove scsi_next_command
...
Conflicts:
drivers/scsi/scsi_debug.c
Agreed and tested resolution to a merge problem between a fix in scsi_debug
and a driver update
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Just like 0x1600 which got blacklisted by 66a7cbc303 ("ahci: disable
MSI instead of NCQ on Samsung pci-e SSDs on macbooks"), 0xa800 chokes
on NCQ commands if MSI is enabled. Disable MSI.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Dominik Mierzejewski <dominik@greysector.net>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=89171
Cc: stable@vger.kernel.org
Remove the FIXME comment in atapi_request_sense() asking whether
memset of sense buffer is necessary. The buffer may be partially or
fully filled by the device. We want it to be cleared.
tj: Updated description.
Signed-off-by: Nicholas Krause <xerofoify@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
irq_of_parse_and_map() returns 0 on error (the result is unsigned int),
so testing for negative result never works.
Signed-off-by: Dmitry Torokhov <dtor@chromium.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
SPC-3 defines SERVICE ACTION IN(12) and SERVICE ACTION IN(16).
So rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 to be
consistent with SPC and to allow for better distinction.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Tested-by: Robert Elliott <elliott@hp.com>
Reviewed-by: Robert Elliott <elliott@hp.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Drop the now unused reason argument from the ->change_queue_depth method.
Also add a return value to scsi_adjust_queue_depth, and rename it to
scsi_change_queue_depth now that it can be used as the default
->change_queue_depth implementation.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
The use of the AHCI_HFLAG_NO_PMP flag is something which we inherited from
the Allwinner android kernel sources, and I've always wanted to test if this
is really necessary.
So recently I've bought a sata port multiplexer, and I've given this a test
spin on both A10 and A20 devices, and it seems to work fine:
[ 2.154456] ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 2.161092] ata1.15: Port Multiplier 1.2, 0x197b:0x0325 r0, 5 ports, feat 0x5/0xf
[ 2.175511] ata1.00: hard resetting link
[ 2.524929] ata1.00: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
[ 2.531430] ata1.01: hard resetting link
[ 2.974465] ata1.01: link resume succeeded after 1 retries
[ 3.094932] ata1.01: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
[ 3.101431] ata1.02: hard resetting link
[ 4.174466] ata1.02: failed to resume link (SControl 0)
[ 4.180065] ata1.02: SATA link down (SStatus 0 SControl 0)
(and the same for links 3 and 4)
Once the NO_PMP flag is removed it correctly sees the 2 disks which I've
attached, and I can mount and use them just fine.
Unfortunately when I then directly attached a disk to the sata port on the
sunxi SoC, and booted a kernel without the AHCI_HFLAG_NO_PMP flag, it would
not recognize that disk.
It turns out that the sata controller in the sunxi SoCs fails to handle
soft-resets issued to directly attached disks, and when pmp support is
enabled the kernel will always issue a soft-reset.
So add a module parameter to enable pmp usage, and default this to off, so
that directly attached disks keep working normally.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Remove the tagged argument from scsi_adjust_queue_depth, and just let it
handle the queue depth. For most drivers those two are fairly separate,
given that most modern drivers don't care about the SCSI "tagged" status
of a command at all, and many old drivers allow queuing of multiple
untagged commands in the driver.
Instead we start out with the ->simple_tags flag set before calling
->slave_configure, which is how all drivers actually looking at
->simple_tags except for one worke anyway. The one other case looks
broken, but I've kept the behavior as-is for now.
Except for that we only change ->simple_tags from the ->change_queue_type,
and when rejecting a tag message in a single driver, so keeping this
churn out of scsi_adjust_queue_depth is a clear win.
Now that the usage of scsi_adjust_queue_depth is more obvious we can
also remove all the trivial instances in ->slave_alloc or ->slave_configure
that just set it to the cmd_per_lun default.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
ZAC (zoned-access command) drives translate into ZBC (Zoned block
command) device type for SCSI. So implement the correct mappings
into libata-scsi and update the SCSI command set versions.
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add new ATA device type for ZAC devices.
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Changes into the AHCI subsystem have introduced a bug by not taking into
account the force_port_map and mask_port_map parameters when using the
ahci_pci_save_initial_config function. This commit fixes it by setting
the internal parameters of the ahci_port_priv structure.
Fixes: 725c7b570f
Reported-and-tested-by: Zlatko Calusic <zcalusic@bitsync.net>
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
This patch adds the AHCI-mode SATA Device IDs for the Intel Sunrise Point PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Samsung pci-e SSDs on macbooks failed miserably on NCQ commands, so
67809f85d3 ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
disabled NCQ on them. It turns out that NCQ is fine as long as MSI is
not used, so let's turn off MSI and leave NCQ on.
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Tested-by: <dorin@i51.org>
Tested-by: Imre Kaloz <kaloz@openwrt.org>
Cc: stable@vger.kernel.org
Fixes: 67809f85d3 ("ahci: disable NCQ on Samsung pci-e SSDs on macbooks")
This reverts commit 33fb0d01ce.
18dcf433f3 ("AHCI: Optimize single IRQ interrupt processing") is
scheduled to be reverted. This is an optimization dependent on the
mentioned commit. Revert it first.
Signed-off-by: Tejun Heo <tj@kernel.org>
Unlike other SATA R-Car r8a7790 controllers the r8a7790 ES1 SATA R-Car
controller needs to be run with DIPM disabled.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Pull slave-dmaengine updates from Vinod Koul:
"For dmaengine contributions we have:
- designware cleanup by Andy
- my series moving device_control users to dmanegine_xxx APIs for
later removal of device_control API
- minor fixes spread over drivers mainly mv_xor, pl330, mmp, imx-sdma
etc"
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (60 commits)
serial: atmel: add missing dmaengine header
dmaengine: remove FSLDMA_EXTERNAL_START
dmaengine: freescale: remove FSLDMA_EXTERNAL_START control method
carma-fpga: move to fsl_dma_external_start()
carma-fpga: use dmaengine_xxx() API
dmaengine: freescale: add and export fsl_dma_external_start()
dmaengine: add dmaengine_prep_dma_sg() helper
video: mx3fb: use dmaengine_terminate_all() API
serial: sh-sci: use dmaengine_terminate_all() API
net: ks8842: use dmaengine_terminate_all() API
mtd: sh_flctl: use dmaengine_terminate_all() API
mtd: fsmc_nand: use dmaengine_terminate_all() API
V4L2: mx3_camer: use dmaengine_pause() API
dmaengine: coh901318: use dmaengine_terminate_all() API
pata_arasan_cf: use dmaengine_terminate_all() API
dmaengine: edma: check for echan->edesc => NULL in edma_dma_pause()
dmaengine: dw: export probe()/remove() and Co to users
dmaengine: dw: enable and disable controller when needed
dmaengine: dw: always export dw_dma_{en,dis}able
dmaengine: dw: introduce dw_dma_on() helper
...
The drivers should use dmaengine_terminate_all() API instead of accessing
the device_control which will be deprecated soon
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Pull libata update from Tejun Heo:
"AHCI is getting per-port irq handling and locks for better
scalability. The gain is not huge but measureable with multiple high
iops devices connected to the same host; however, the value of
threaded IRQ handling seems negligible for AHCI and it likely will
revert to non-threaded handling soon.
Another noteworthy change is George Spelvin's "libata: Un-break ATA
blacklist". During 3.17 devel cycle, the libata blacklist glob
matching got generalized and rewritten; unfortunately, the patch
forgot to swap arguments to match the new match function and ended up
breaking blacklist matching completely. It got noticed only a couple
days ago so it couldn't make for-3.17-fixes either. :(
Other than the above two, nothing too interesting - the usual cleanup
churns and device-specific changes"
* 'for-3.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
pata_serverworks: disable 64-KB DMA transfers on Broadcom OSB4 IDE Controller
libata: Un-break ATA blacklist
AHCI: Do not acquire ata_host::lock from single IRQ handler
AHCI: Optimize single IRQ interrupt processing
AHCI: Do not read HOST_IRQ_STAT reg in multi-MSI mode
AHCI: Make few function names more descriptive
AHCI: Move host activation code into ahci_host_activate()
AHCI: Move ahci_host_activate() function to libahci.c
AHCI: Pass SCSI host template as arg to ahci_host_activate()
ata: pata_imx: Use the SIMPLE_DEV_PM_OPS() macro
AHCI: Cleanup checking of multiple MSIs/SLM modes
libata-sff: Fix controllers with no ctl port
ahci_xgene: Fix the error print invalid resource for APM X-Gene SoC AHCI SATA Host Controller driver.
libata: change ata_<foo>_printk routines to return void
ata: qcom: Add device tree bindings information
ahci-platform: Bump max number of clocks to 5
ahci: ahci_p5wdh_workaround - constify DMI table
libahci_platform: Staticize ahci_platform_<en/dis>able_phys()
pata_platform: Remove useless irq_flags field
pata_of_platform: Remove "electra-ide" quirk
...
These are bug fixes for harmless problems that were not important
enough to get fixed in 3.17. The majority of these are OMAP specific,
but there are also a couple for Marvell mvebu, cns3xxx, and others,
as well as some updates for the MAINTAINERS file.
In particular, Robert Jarzmik and Daniel Mack now volunteered to help
out maintaining the PXA platform, Krzysztof Halasa took over the
cns3xxx platform, Carlo Caione is the maintainer for the new Amlogic
meson platform, and Matthias Brugger is now listed for the mediatek
platform he recently contributed.
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Merge tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC non-critical bug fixes from Arnd Bergmann:
"These are bug fixes for harmless problems that were not important
enough to get fixed in 3.17. The majority of these are OMAP specific,
but there are also a couple for Marvell mvebu, cns3xxx, and others, as
well as some updates for the MAINTAINERS file.
In particular, Robert Jarzmik and Daniel Mack now volunteered to help
out maintaining the PXA platform, Krzysztof Halasa took over the
cns3xxx platform, Carlo Caione is the maintainer for the new Amlogic
meson platform, and Matthias Brugger is now listed for the mediatek
platform he recently contributed"
* tag 'fixes-nc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits)
MAINTAINERS: update Shawn's email address
MAINTAINERS: condense some Tegra related entries
MAINTAINERS: add Alexandre Courbot for Tegra
MAINTAINERS: CNS3xxx and IXP4xx update.
MAINTAINERS: Add maintainers entry for Mediatek SoCs
arm, vt8500, LLVMLlinux: Use mcr instead of mcr% for mach-vt8500
MAINTAINERS: add a third maintainer to mach-bcm
CNS3xxx: Fix PCIe read size limit.
CNS3xxx: Fix logical PCIe topology.
CNS3xxx: Fix debug UART.
MAINTAINERS: Add entry for the Amlogic MesonX SoCs
MAINTAINERS: update ARM pxa maintainers
ARM: at91/PMC: don't forget to write PMC_PCDR register to disable clocks
ARM: at91: fix at91sam9263ek DT mmc pinmuxing settings
ARM: mvebu: Netgear RN102: Use Hardware BCH ECC
ARM: Kirkwood: Fix DT based DSA.
ARM: OMAP2+: make of_device_ids const
ARM: omap2: make arrays containing machine compatible strings const
ARM: LPC32xx: Fix reset function
ARM: mvebu: Netgear RN2120: Use Hardware BCH ECC
...
The Broadcom OSB4 IDE Controller (vendor and device IDs: 1166:0211)
does not support 64-KB DMA transfers.
Whenever a 64-KB DMA transfer is attempted,
the transfer fails and messages similar to the following
are written to the console log:
[ 2431.851125] sr 0:0:0:0: [sr0] Unhandled sense code
[ 2431.851139] sr 0:0:0:0: [sr0] Result: hostbyte=DID_OK driverbyte=DRIVER_SENSE
[ 2431.851152] sr 0:0:0:0: [sr0] Sense Key : Hardware Error [current]
[ 2431.851166] sr 0:0:0:0: [sr0] Add. Sense: Logical unit communication time-out
[ 2431.851182] sr 0:0:0:0: [sr0] CDB: Read(10): 28 00 00 00 76 f4 00 00 40 00
[ 2431.851210] end_request: I/O error, dev sr0, sector 121808
When the libata and pata_serverworks modules
are recompiled with ATA_DEBUG and ATA_VERBOSE_DEBUG defined in libata.h,
the 64-KB transfer size in the scatter-gather list can be seen
in the console log:
[ 2664.897267] sr 9:0:0:0: [sr0] Send:
[ 2664.897274] 0xf63d85e0
[ 2664.897283] sr 9:0:0:0: [sr0] CDB:
[ 2664.897288] Read(10): 28 00 00 00 7f b4 00 00 40 00
[ 2664.897319] buffer = 0xf6d6fbc0, bufflen = 131072, queuecommand 0xf81b7700
[ 2664.897331] ata_scsi_dump_cdb: CDB (1:0,0,0) 28 00 00 00 7f b4 00 00 40
[ 2664.897338] ata_scsi_translate: ENTER
[ 2664.897345] ata_sg_setup: ENTER, ata1
[ 2664.897356] ata_sg_setup: 3 sg elements mapped
[ 2664.897364] ata_bmdma_fill_sg: PRD[0] = (0x66FD2000, 0xE000)
[ 2664.897371] ata_bmdma_fill_sg: PRD[1] = (0x65000000, 0x10000)
------------------------------------------------------> =======
[ 2664.897378] ata_bmdma_fill_sg: PRD[2] = (0x66A10000, 0x2000)
[ 2664.897386] ata1: ata_dev_select: ENTER, device 0, wait 1
[ 2664.897422] ata_sff_tf_load: feat 0x1 nsect 0x0 lba 0x0 0x0 0xFC
[ 2664.897428] ata_sff_tf_load: device 0xA0
[ 2664.897448] ata_sff_exec_command: ata1: cmd 0xA0
[ 2664.897457] ata_scsi_translate: EXIT
[ 2664.897462] leaving scsi_dispatch_cmnd()
[ 2664.897497] Doing sr request, dev = sr0, block = 0
[ 2664.897507] sr0 : reading 64/256 512 byte blocks.
[ 2664.897553] ata_sff_hsm_move: ata1: protocol 7 task_state 1 (dev_stat 0x58)
[ 2664.897560] atapi_send_cdb: send cdb
[ 2666.910058] ata_bmdma_port_intr: ata1: host_stat 0x64
[ 2666.910079] __ata_sff_port_intr: ata1: protocol 7 task_state 3
[ 2666.910093] ata_sff_hsm_move: ata1: protocol 7 task_state 3 (dev_stat 0x51)
[ 2666.910101] ata_sff_hsm_move: ata1: protocol 7 task_state 4 (dev_stat 0x51)
[ 2666.910129] sr 9:0:0:0: [sr0] Done:
[ 2666.910136] 0xf63d85e0 TIMEOUT
lspci shows that the driver used for the Broadcom OSB4 IDE Controller is
pata_serverworks:
00:0f.1 IDE interface: Broadcom OSB4 IDE Controller (prog-if 8e [Master SecP SecO PriP])
Flags: bus master, medium devsel, latency 64
[virtual] Memory at 000001f0 (32-bit, non-prefetchable) [size=8]
[virtual] Memory at 000003f0 (type 3, non-prefetchable) [size=1]
I/O ports at 0170 [size=8]
I/O ports at 0374 [size=4]
I/O ports at 1440 [size=16]
Kernel driver in use: pata_serverworks
The pata_serverworks driver supports five distinct device IDs,
one being the OSB4 and the other four belonging to the CSB series.
The CSB series appears to support 64-KB DMA transfers,
as tests on a machine with an SAI2 motherboard
containing a Broadcom CSB5 IDE Controller (vendor and device IDs: 1166:0212)
showed no problems with 64-KB DMA transfers.
This problem was first discovered when attempting to install openSUSE
from a DVD on a machine with an STL2 motherboard.
Using the pata_serverworks module,
older releases of openSUSE will not install at all due to the timeouts.
Releases of openSUSE prior to 11.3 can be installed by disabling
the pata_serverworks module using the brokenmodules boot parameter,
which causes the serverworks module to be used instead.
Recent releases of openSUSE (12.2 and later) include better error recovery and
will install, though very slowly.
On all openSUSE releases, the problem can be recreated
on a machine containing a Broadcom OSB4 IDE Controller
by mounting an install DVD and running a command similar to the following:
find /mnt -type f -print | xargs cat > /dev/null
The patch below corrects the problem.
Similar to the other ATA drivers that do not support 64-KB DMA transfers,
the patch changes the ata_port_operations qc_prep vector to point to a routine
that breaks any 64-KB segment into two 32-KB segments and
changes the scsi_host_template sg_tablesize element to reduce by half
the number of scatter/gather elements allowed.
These two changes affect only the OSB4.
Signed-off-by: Scott Carter <ccscott@funsoft.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
lib/glob.c provides a new glob_match() function, with arguments in
(pattern, string) order. It replaced a private function with arguments
in (string, pattern) order, but I didn't swap the call site...
The result was the entire ATA blacklist was effectively disabled.
The lesson for today is "I f***ed up *how* badly *how* many months ago?",
er, I mean "Nobody Tests RC Kernels On Legacy Hardware".
This was not a subtle break, but it made it through an entire RC
cycle unreported, presumably because all the people doing testing
have full-featured hardware.
(FWIW, the reason for the argument swap was because fnmatch() does it that
way, and for a while implementing a full fnmatch() was being considered.)
Fixes: 428ac5fc05 (libata: Use glob_match from lib/glob.c)
Reported-by: Steven Honeyman <stevenhoneyman@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=71371#c21
Signed-off-by: George Spelvin <linux@horizon.com>
Cc: <stable@vger.kernel.org> # 3.17
Tested-by: Steven Honeyman <stevenhoneyman@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There is no need to acquire ata_host::lock spinlock from
hardware context single IRQ interrupt handler since the
handler does not access host data that could be altered
by concurrent processors.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
Split interrupt service routine into hardware context handler
and threaded context handler. That allows to protect ports with
individual locks rather than with a single host-wide lock and
move port interrupts handling out of the hardware interrupt
context.
Testing was done by transferring 8GB on two hard drives in
parallel using command 'dd if=/dev/sd{a,b} of=/dev/null'. With
lock_stat statistics I measured access times to ata_host::lock
spinlock (since interrupt handler code is fully embraced with
this lock). The average lock's holdtime decreased eight times
while average waittime decreased two times.
Both before and after the change the transfer time is the same,
while 'perf record -e cycles:k ...' shows 1%-4% CPU time spent
in ahci_single_irq_intr() routine before the update and not even
sampled/shown ahci_single_irq_intr() after the update.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
As described in AHCI v1.0 specification chapter 10.6.2.2
"Multiple MSI Based Messages" generation of interrupts
is not controlled through the HOST_IRQ_STAT register.
Considering MMIO access is expensive remove unnecessary
reading and writing of HOST_IRQ_STAT register.
Further, serializing access to the host data is no longer
needed and the interrupt service routine can avoid competing
on the host lock.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Suggested-by: "Jiang, Dave" <dave.jiang@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: "Jiang, Dave" <dave.jiang@intel.com>
Cc: linux-ide@vger.kernel.org
Currently host activation done by calling either function
ahci_host_activate() or ata_host_activate(). Consolidate
the code by only calling ahci_host_activate() for all AHCI
devices.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
This update is a prerequisite for consolidation of
AHCI host activation code within ahci_host_activate()
function.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
This update is a prerequisite for consolidation of
AHCI host activation code within ahci_host_activate()
function.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
Using the SIMPLE_DEV_PM_OPS() macro can make the code shorter and cleaner.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Sharing Last Message (SLM) mode is currently checked in two
functions: ahci_host_activate() and ahci_init_interrupts().
This update consolidates SLM mode check with activation of
multiple MSIs mode.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
This patch fixes the error print invalid resource for the APM X-Gene
SoC AHCI SATA Host Controller driver. This print was due to the fact
that the controller 3 don't have a mux resource. This didn't result
in any errors but the print seems like meaningless.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The return value is not used by callers of these functions nor
by uses of all macros so change the functions to return void.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Qualcomm IPQ806x SoCs with SATA controllers need 5 clocks to be enabled.
Signed-off-by: Kumar Gala <galak@codeaurora.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Due to HW errata the APM X-Gene AHCI SATA host controller reports link
down even if the device presence is detected. This issue is due to speed
negotiation failure. This patch implements the algorithm to retry the
COMRESET if PxSTAT register reports device presence detected but
PHY communication not established. The maximum retry attempts are 3.
This patch also fixes the code to match the algorithm for the printing
a warning message if the disparity error still exists after link up.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch implements the feature to skip the PHY and clock
initialization if it is already configured by the firmware.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Keystone K2E EVM uses Marvel 0x9182 controller. This requires support
for the ID in the ahci driver.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: stable@vger.kernel.org
After enabled the PM feature that supporting async noirq(76569faa62
(PM / sleep: Asynchronous threads for resume_noirq)),
Jay hit the system resuming issue, that one of the JMicron controller
can not be powered up.
His device tree is like below:
+-1c.4-[02]--+-00.0 JMicron Technology Corp. JMB363 SATA/IDE Controller
| \-00.1 JMicron Technology Corp. JMB363 SATA/IDE Controller
After investigation, we found the the Micron chip 363 included
one SATA controller(0000:02:00.0) and one PATA controller(0000:02:00.1),
these two controllers do not have parent-children relationship,
but the PATA controller only can be powered on after the SATA controller
has finished the powering on.
If we enabled the async noirq(), then the below error is hit during noirq
phase:
pata_jmicron 0000:02:00.1: Refused to change power state, currently in D3
Here for JMicron chip 363/361, we need forcedly to disable the async method.
Bug detail: https://bugzilla.kernel.org/show_bug.cgi?id=81551
Reported-by: Jay <MyMailClone@t-online.de>
Signed-off-by: Chuansheng Liu <chuansheng.liu@intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The DMI table does not need to be written to, make it r/o.
Signed-off-by: Mathias Krause <minipli@googlemail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
ahci_platform_enable_phys() and ahci_platform_disable_phys() are currently
exported, but they are not used anywhere else other than libahci_platform.c.
So make them static and do not export them to fix the following sparse
warnings:
drivers/ata/libahci_platform.c:52:5: warning: symbol 'ahci_platform_enable_phys' was not declared. Should it be static?
drivers/ata/libahci_platform.c:88:6: warning: symbol 'ahci_platform_disable_phys' was not declared. Should it be static?
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch adds the IDE mode SATA Device IDs for the Intel 9 Series PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This patch adds the AHCI mode SATA Device IDs for the Intel 9 Series PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
The original version of the driver did not read the SATA calibration
fuse to remove the dependency to the fuse driver. The fuse driver
is now merged, so add this functionality.
The calibration fuse contains a 2-bit value used to pick a set
of calibration values for the SATA pad.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
IRQ flags can be obtained from resource structure, there are no need
to use additional field in the platform_data to store these values.
This patch removes this field and convert existing users of this driver
to use IRQ flags from the resources.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Tejun Heo <tj@kernel.org>
"electra-ide" is not used anywhere in the kernel and could be
represented in devicetree in a normal way.
This patch removes specific quirk for "electra-ide".
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Tejun Heo <tj@kernel.org>
Use dev_name() instead of driver name for request_irq().
This will help to distinguish between multiple identical devices.
Before:
CPU0
5: 34425 clps711x-intc 5 pata_of_platform
6: 6778 clps711x-intc 6 pata_of_platform
After:
CPU0
5: 2182 clps711x-intc 5 20000000.ide
6: 11024 clps711x-intc 6 20100000.ide
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Tejun Heo <tj@kernel.org>
Crucial M550 may cause data corruption on queued trims and is
blacklisted. The pattern used for it fails to match 1TB one as the
capacity section will be four chars instead of three. Widen the
pattern.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Charles Reiss <woggling@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=81071
Cc: stable@vger.kernel.org
Before this patch, the driver included <linux/tegra-powergate.h>,
which was effectively renamed to <soc/tegra/pmc.h> at about the same
time the ahci_tegra series landed. Fix the include path so that the
driver compiles.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Change return type to signed int since it could be
a negative errno.
Signed-off-by: Arjun Sreedharan <arjun024@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch removes the NCQ support from the APM X-Gene SoC AHCI
Host Controller driver as it doesn't support it.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
The last user of the deprecated struct ahci_platform_data has been
cleaned up recently (SPEAr1340 got a proper PHY driver).
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Merge incoming from Andrew Morton:
- Various misc things.
- arch/sh updates.
- Part of ocfs2. Review is slow.
- Slab updates.
- Most of -mm.
- printk updates.
- lib/ updates.
- checkpatch updates.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (226 commits)
checkpatch: update $declaration_macros, add uninitialized_var
checkpatch: warn on missing spaces in broken up quoted
checkpatch: fix false positives for --strict "space after cast" test
checkpatch: fix false positive MISSING_BREAK warnings with --file
checkpatch: add test for native c90 types in unusual order
checkpatch: add signed generic types
checkpatch: add short int to c variable types
checkpatch: add for_each tests to indentation and brace tests
checkpatch: fix brace style misuses of else and while
checkpatch: add --fix option for a couple OPEN_BRACE misuses
checkpatch: use the correct indentation for which()
checkpatch: add fix_insert_line and fix_delete_line helpers
checkpatch: add ability to insert and delete lines to patch/file
checkpatch: add an index variable for fixed lines
checkpatch: warn on break after goto or return with same tab indentation
checkpatch: emit a warning on file add/move/delete
checkpatch: add test for commit id formatting style in commit log
checkpatch: emit fewer kmalloc_array/kcalloc conversion warnings
checkpatch: improve "no space after cast" test
checkpatch: allow multiple const * types
...
This patch set consists of the usual driver updates (ufs, storvsc, pm8001
hpsa). It also has removal of the user space target driver code (everyone is
using LIO now), a partial PCI MSI-X update, more multi-queue updates,
conversion to 64 bit LUNs (so we could theoretically cope with any LUN
returned by a device) and placeholder support for the ZBC device type (Shingle
drives), plus an assortment of minor updates and bug fixes.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This patch set consists of the usual driver updates (ufs, storvsc,
pm8001 hpsa). It also has removal of the user space target driver
code (everyone is using LIO now), a partial PCI MSI-X update, more
multi-queue updates, conversion to 64 bit LUNs (so we could
theoretically cope with any LUN returned by a device) and placeholder
support for the ZBC device type (Shingle drives), plus an assortment
of minor updates and bug fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (143 commits)
scsi: do not issue SCSI RSOC command to Promise Vtrak E610f
vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()
pm8001: Fix invalid return when request_irq() failed
lpfc: Remove superfluous call to pci_disable_msix()
isci: Use pci_enable_msix_exact() instead of pci_enable_msix()
bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()
bfa: Cleanup bfad_setup_intr() function
bfa: Do not call pci_enable_msix() after it failed once
fnic: Use pci_enable_msix_exact() instead of pci_enable_msix()
scsi: use short driver name for per-driver cmd slab caches
scsi_debug: support scsi-mq, queues and locks
Drivers: add blist flags
scsi: ufs: fix endianness sparse warnings
scsi: ufs: make undeclared functions static
bnx2i: Update driver version to 2.7.10.1
pm8001: fix a memory leak in nvmd_resp
pm8001: fix update_flash
pm8001: fix a memory leak in flash_update
pm8001: Cleaning up uninitialized variables
pm8001: Fix to remove null pointer checks that could never happen
...
The function may be useful for other drivers, so export it. (Suggested
by Tejun Heo.)
Note that I inverted the return value of glob_match; returning true on
match seemed to make more sense.
Signed-off-by: George Spelvin <linux@horizon.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 725c7b570f (ata: libahci_platform: move port_map parameters
into the AHCI structure) moves flags into the struct ahci_host_priv's
.flags field, which causes compiler warnings on 64-bit builds when that
value is cast to a void * pointer. Cast to an unsigned long so that the
subsequent cast to a pointer doesn't produce a warning.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The ahci_platform driver is a generic driver using the libahci_platform
functions. Add a generic compatible to avoid having an endless list of
compatibles with no differences for the same driver.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
The current implementation of the libahci does not allow to use multiple
PHYs. This patch adds the support of multiple PHYs by the libahci while
keeping the old bindings valid for device tree compatibility.
This introduce a new way of defining SATA ports in the device tree, with
one port per sub-node. This as the advantage of allowing a per port
configuration. Because some ports may be accessible but disabled in the
device tree, the port_map mask is computed automatically when using
this.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch moves force_port_map and mask_port_map into the
ahci_host_priv structure. This allows to modify them into the AHCI
framework. This is needed by the new dt bindings representing ports as
the port_map mask is computed automatically.
Parameters modifying force_port_map, mask_port_map and flags have been
removed from the ahci_platform_init_host() function, and inputs in the
ahci_host_priv structure are now directly filed.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
APM X-Gene SoC AHCI SATA Host controller driver requires
some correction of Phy Control OOB timing for the
COMINIT/COMWAKE parameters to correctly interoperate with
different kinds of disks.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
As per SATA IO specification, when Host sends HOLD, the device takes
about 20DW latency to reply to HOLDA. In some case, device doesn't
response to HOLDA over 20DW and causes FIFO goes into over flow
condition. Due to this condition, device enumerations fails with
those devices. This patch adjust the watermark FIFO by increasing
the FIFO depth from 0x16(default) to 0x30 to address this issue.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Make of_device_id array const, because all OF functions handle it as const.
Signed-off-by: Kiran Padwal <kiran.padwal21@gmail.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
In machines with multiple Silicon Image 3124 and/or 3132 cards, there is no
way to tell which card is the culprit when the sata_sil24 interrupt handler
gets a bad status.
Tested-by: Tim Small <tim@seoss.co.uk>
Signed-off-by: Tim Small <tim@seoss.co.uk>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add support of the Promise FastTrak TX8660 SATA HBA in ahci mode by
registering the board in the ahci_pci_tbl[].
Note: this HBA also provide a hardware RAID mode when activated in
BIOS but specific drivers from the manufacturer are required in this
case.
Signed-off-by: Romain Degez <romain.degez@gmail.com>
Tested-by: Romain Degez <romain.degez@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This adds support for the integrated AHCI-compliant Serial ATA
controller present on the NVIDIA Tegra124 system-on-chip.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The Tegra124 SATA controller requires 4 clocks. Increase this constant
to be able to use them all.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The SCSI standard defines 64-bit values for LUNs, and large arrays
employing large or hierarchical LUN numbers become more and more
common.
So update the linux SCSI stack to use 64-bit LUN numbers.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Ewan Milne <emilne@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
[linux-3.16-rc5/drivers/ata/pata_ep93xx.c:929]: (style) Checking if unsigned
variable 'irq' is less than zero.
Source code is
irq = platform_get_irq(pdev, 0);
if (irq < 0) {
but
unsigned int irq;
$ fgrep platform_get_irq `find . -name \*.h -print`
./include/linux/platform_device.h:extern int platform_get_irq(struct
platform_device *, unsigned int);
Now using "int" type instead of "unsigned int" for "irq" variable.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=80401
Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Andrey Utkin <andrey.krieger.utkin@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
libata-eh.c should handle AMNF error condition (error byte bit 0,
usually code 0x01) in libata-eh.c along with UNC as a media error so
SCSI stack can handle it properly (translation code 0x01 is already
present in libata-scsi.c) but was never passed down due to lack of
handling in EH.
While using linux-based machine (AMD 6550M-based notebook, PCI IDs for the
controller are 1022:7801 subsys 1025:059d) and ddrescue to salvage data
from failing hard drive (WD7500BPVT 2.5" 750G SATA2), I've found that pure
AMNF 0x01 error code generates generic "device error" that is retried
several times by SCSI stack instead of "media error" that is passed up to
software.
So we may assume deprecated AMNF error code is surely not dead yet, and
it's better for it to be handled properly. As we may see it is used by
modern enough devices, and used properly: drive returned AMNF only when IDs
for track cannot be read completely due to dying head or positioning,
otherwise it returned UNC(orrectables).
Not handling it causes wrong generic error code ("device error") reporting
down the stack, can damage failing drives further because of excessive
retries, and slows salvaging down a lot. Also, there is handling code in
libata-scsi.c for 0x01 AMNF error already.
https://bugzilla.kernel.org/show_bug.cgi?id=80031
tj: Shortened $SUBJ and moved its content to the first paragraph.
Signed-off-by: Alexey Asemov <alex@alex-at.ru>
Signed-off-by: Tejun Heo <tj@kernel.org>
The sata on fsl mpc8315e is broken after the commit 8a4aeec8d2
("libata/ahci: accommodate tag ordered controllers"). The reason is
that the ata controller on this SoC only implement a queue depth of
16. When issuing the commands in tag order, all the commands in tag
16 ~ 31 are mapped to tag 0 unconditionally and then causes the sata
malfunction. It makes no senses to use a 32 queue in software while
the hardware has less queue depth. So consider the queue depth
implemented by the hardware when requesting a command tag.
Fixes: 8a4aeec8d2 ("libata/ahci: accommodate tag ordered controllers")
Cc: stable@vger.kernel.org
Signed-off-by: Kevin Hao <haokexin@gmail.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch fixes the dma state machine lockup due to the processing
of IDENTIFY DEVICE PIO mode command. The X-Gene AHCI controller
has an errata in which it cannot clear the BSY bit after the PIO setup
FIS. The dma state machine enters CMFatalErrorUpdate state and locks
up. This patch also removes the dma restart workaround from the read_id
function as the read_id function is only called by libata layer for
ATA_INTERNAL commands. But for some cases eg: PORT MULTIPLIER
and udev, the framework will enumerate using SCSI commands and it will
not call read_id function.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The subsequent patch will make use of them.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Spread-spectrum doesn't work with Cubox-i hardware, so we have to
disable this feature. Add a DT property so that platforms can
indicate that this feature should not be enabled.
Having it as a negative property keeps existing DT files working.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Various SATA phy parameters are board specific, and therefore need to
be configured.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch removes support for s5pc100 ata because of no more support
S5PC100 SoC in mainline.
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
When the AHCI link is disabled, it can't be re-enabled except by
resetting the entire SoC. Rather than doing this silently print
some kernel messages to inform the user, along with how to avoid
this.
tj: Put a long printf format string on a single line.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Tejun Heo <tj@kernel.org>
NCQ feature is unsupported on hisilicon sata controller, so disable
it. This version of IP is used by hip04 and hix5hd2 soc.
tj: "|=" was replaced with "=" for no reason. Restored "|=".
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Sigend-off-by: Tejun Heo <tj@kernel.org>
Doing suspend/resume on imx6q and imx53 boards with no SATA disk
attached will trigger the following warning.
------------[ cut here ]------------
WARNING: CPU: 0 PID: 661 at drivers/ata/libahci.c:224 ahci_enable_ahci+0x74/0x8)
Modules linked in:
CPU: 0 PID: 661 Comm: sh Tainted: G W 3.15.0-rc5-next-20140521-000027
Backtrace:
[<80011c90>] (dump_backtrace) from [<80011e2c>] (show_stack+0x18/0x1c)
r6:803a22f4 r5:00000000 r4:00000000 r3:00000000
[<80011e14>] (show_stack) from [<80661e60>] (dump_stack+0x88/0xa4)
[<80661dd8>] (dump_stack) from [<80028fdc>] (warn_slowpath_common+0x70/0x94)
r5:00000009 r4:00000000
[<80028f6c>] (warn_slowpath_common) from [<80029024>] (warn_slowpath_null+0x24/)
r8:808f68c4 r7:00000000 r6:00000000 r5:00000000 r4:e0810004
[<80029000>] (warn_slowpath_null) from [<803a22f4>] (ahci_enable_ahci+0x74/0x80)
[<803a2280>] (ahci_enable_ahci) from [<803a2324>] (ahci_reset_controller+0x24/0)
r8:ddcd9410 r7:80351178 r6:ddcd9444 r5:dde8b850 r4:e0810000 r3:ddf35e90
[<803a2300>] (ahci_reset_controller) from [<803a2c68>] (ahci_platform_resume_ho)
r7:80351178 r6:ddcd9444 r5:dde8b850 r4:ddcd9410
[<803a2c30>] (ahci_platform_resume_host) from [<803a38f0>] (imx_ahci_resume+0x2)
r5:00000000 r4:ddcd9410
[<803a38c4>] (imx_ahci_resume) from [<803511ac>] (platform_pm_resume+0x34/0x54)
....
The reason is that the SATA controller has no working clock at this
point, and thus ahci_enable_ahci() fails to enable the controller. In
case that there is no SATA disk attached, the imx_sata_disable() gets
called in ahci_imx_error_handler(), and both sata_clk and sata_ref_clk
will be disabled there. Because all the imx_sata_enable() calls
afterward will return immediately due to imxpriv->no_device check, the
SATA controller working clock sata_clk will never get any chance to be
enabled again.
This is a regression caused by commit 90870d79d4 (ahci-imx: Port to
library-ised ahci_platform). Before the commit, only sata_ref_clk is
managed by the driver in enable/disable function. But after the commit,
all the clocks are enabled/disabled in a row by ahci platform helpers
ahci_platform_enable[disable]_clks. Since ahb_clk is a bus clock which
does not have gate at all, and i.MX low-power hardware module already
manages sata_clk across suspend/resume cycle, the only clock that needs
to be managed by software is sata_ref_clk.
So instead of using ahci_platform_enable[disable]_clks to manage all
the clocks in a row from imx_sata_enable[disable], we should manage
only sata_ref_clk in there.
Reported-by: Fabio Estevam <fabio.estevam@freescale.com>
Fixes: 90870d79d4 (ahci-imx: Port to library-ised ahci_platform)
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Instead of doing the check here, this should be handled
in the common AHCI platform code.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Loc Ho <lho@apm.com>
Cc: Tuan Phan <tphan@apm.com>
Cc: Suman Triphati <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The current platform AHCI driver does not set the dma_mask correctly
for 64-bit DMA capable AHCI controller. This patch checks the AHCI
capability bit and set the dma_mask and coherent_dma_mask accordingly.
Signed-off-by: Suravee Suthikulpanit <Suravee.Suthikulpanit@amd.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Tested-by: Suman Tripathi <stripathi@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
ahci_platform_get_resources handles resource management for
platform AHCI drivers, including getting a possible PHY
from the device tree. Since not all drivers need a PHY, it
ignores -ENODEV and -ENOSYS from devm_get_phy. However, when
the PHY subsystem is mistakenly disabled, -ENOSYS can be
returned even when a PHY is needed.
This patch modifies the -ENOSYS case to check if a "phys"
device tree node exists. If it exists, then clearly the PHY
subsystem is mistakenly disabled and the driver cannot work,
ahci_platform_get_resources will fail and propagate the error.
Signed-off-by: Mikko Perttunen <mperttunen@nvidia.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Use the zeroing function instead of dma_alloc_coherent & memset(,0,)
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata updates from Tejun Heo:
"Nothing too interesting - another ahci platform driver variant,
additional controller support, minor fixes and cleanups"
* 'for-3.16' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: Add Device ID for HighPoint RocketRaid 642L
ata: ep93xx: use dmaengine_prep_slave_sg api instead of internal callback
ahci: add PCI ID for Marvell 88SE91A0 SATA Controller
sata_fsl: remove check for CONFIG_MPC8315_DS
ahci: add support for Hisilicon sata
libahci_platform: add host_flags parameter in ahci_platform_init_host()
ata: ahci: append new hflag AHCI_HFLAG_NO_FBS
ata: use CONFIG_PM_SLEEP instead of CONFIG_PM where applicable in host drivers
ata: ahci_mvebu: new driver for Marvell Armada 380 AHCI interfaces
Documentation: dt-bindings: reformat and order list of ahci-platform compatibles
libata-sff: remove dead code
ata: SATL compliance for Inquiry Product Revision
pata_octeon_cf: use devm_kzalloc() to allocate cf_port
This device normally comes with a proprietary driver, using a web GUI
to configure RAID:
http://www.highpoint-tech.com/USA_new/series_rr600-download.htm
But thankfully it also works out of the box with the AHCI driver,
being just a Marvell 88SE9235.
Devices 640L, 644L, 644LS should also be supported but not tested here.
Signed-off-by: Jérôme Carretero <cJ-ko@zougloub.eu>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Queued trim only works for some users with MU05 firmware. Revert to
blacklisting all firmware versions.
Introduced by commit d121f7d0cb ("libata: Update queued trim blacklist
for M5x0 drives") which this effectively reverts, while retaining the
blacklisting of M550.
See
https://bugzilla.kernel.org/show_bug.cgi?id=71371
for reports of trouble with MU05 firmware.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
it is better to use generic api instead of calling an internal callback
like channel->device->device_prep_slave_sg().
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add support for Marvell Technology Group Ltd. 88SE91A0 SATA 6Gb/s
Controller by adding its PCI ID.
Signed-off-by: Andreas Schrägle <ajs124.ajs124@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
A check for CONFIG_MPC8315_DS was added in v2.6.24. But the related
Kconfig symbol was never added to the tree. So the code behind this
check has effectively been dead for over six years. Remove it.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata fixes from Tejun Heo:
"Mostly device-specific fixes. The only thing which isn't is the fix
for zpodd oops-on-detach bug"
* 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: imx: PLL clock needs 100us to settle down
ata: pata_at91 only works on sam9
libata: clean up ZPODD when a port is detached
ahci: imx: software workaround for phy reset issue in resume
ahci: imx: add namespace for register enums
ahci: disable DEVSLP for Intel Valleyview
The commit e783c51 (ahci: imx: software workaround for phy reset issue
in resume) calls imx_sata_phy_reset() to reset phy immediately after
SATA MPLL is enabled. It seems working fine mostly, but fails in some
case as below.
...
ahci-imx 2200000.sata: failed to reset phy: -110
ahci-imx: probe of 2200000.sata failed with error -110
After talking to the designer, we learnt that when enabling i.MX6Q SATA
MPLL, we need to wait 100us for it to settle down for safety. Add this
required delay to fix above failure.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Tested-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The hip04 SoC of hisilicon has an AHCI compliant SATA controller,
and it is compliant with the ahci 1.3 and sata 3.0 specification.
There is a wrong bit in HOST_CAP of hip04 sata controller, which
enable unsupported feature of FBS, use AHCI_HFLAG_NO_FBS hflag to
disable it.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add a dynamic host_flags argument to make ahci_platform_init_host more flexible,
then remove the AHCI_HFLAGS(...) argument from some driver's ata_port_info,
and pass that in as the new argument.
Cc: Hans de Geode <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Append AHCI_HFLAG_NO_FBS to force turning off FBS flag.
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Signed-off-by: Kefeng Wang <kefeng.wang@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch fixes host drivers to use CONFIG_PM_SLEEP instead of CONFIG_PM
where applicable. Benefits of this change:
* unused code is not being compiled in for CONFIG_PM=y, CONFIG_PM_SLEEP=n
and CONFIG_PM_RUNTIME=y configurations
* easier transition to use struct dev_pm_ops and SIMPLE_DEV_PM_OPS() in
the future
* more consistent code (there are host drivers which are using the correct
CONFIG_PM_SLEEP checks already)
The patch leaves the core libata code and ->port_[suspend,resume] support
in sata_[inic162x,nv,sil24].c alone for now.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The smc driver used by pata_at91 is at91sam9 specific, so building
this driver on another at91 platform results in this error:
ERROR: "sam9_smc_configure" [drivers/ata/pata_at91.ko] undefined!
ERROR: "sam9_smc_write_mode" [drivers/ata/pata_at91.ko] undefined!
ERROR: "sam9_smc_read_mode" [drivers/ata/pata_at91.ko] undefined!
This patch changes the Kconfig dependency to ensure it always works.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: linux-ide@vger.kernel.org
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
When a ZPODD device is unbound via sysfs, the ACPI notify handler
is not removed. This causes panics as observed in Bug #74601. The
panic only happens when the wake happens from outside the kernel
(i.e. inserting a media or pressing a button). Add a loop to
ata_port_detach which loops through the port's devices and checks
if zpodd is enabled, if so call zpodd_exit.
Cc: stable@vger.kernel.org
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The Marvell Armada 380 SoC includes two AHCI compatible
interfaces. However, like all DMA-capable Marvell interface, they
require special handling to configure MBus windows. Therefore, this
commit adds a new ahci_mvebu driver, which relies on the
libahci_platform.c code recently introduced.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
When suspending imx6q systems which have rootfs on SATA, the following
error will likely be seen in resume. The SATA link will fail to come
up, and it results in an unusable system across the suspend/resume
cycle.
$ echo mem > /sys/power/state
PM: Syncing filesystems ... done.
PM: Preparing system for mem sleep
Freezing user space processes ... (elapsed 0.002 seconds) done.
Freezing remaining freezable tasks ... (elapsed 0.002 seconds) done.
PM: Entering mem sleep
sd 0:0:0:0: [sda] Synchronizing SCSI cache
sd 0:0:0:0: [sda] Stopping disk
PM: suspend of devices complete after 61.914 msecs
PM: suspend devices took 0.070 seconds
PM: late suspend of devices complete after 4.906 msecs
PM: noirq suspend of devices complete after 4.521 msecs
Disabling non-boot CPUs ...
CPU1: shutdown
CPU2: shutdown
CPU3: shutdown
Enabling non-boot CPUs ...
CPU1: Booted secondary processor
CPU1 is up
CPU2: Booted secondary processor
CPU2 is up
CPU3: Booted secondary processor
CPU3 is up
PM: noirq resume of devices complete after 10.486 msecs
PM: early resume of devices complete after 4.679 msecs
sd 0:0:0:0: [sda] Starting disk
PM: resume of devices complete after 22.674 msecs
PM: resume devices took 0.030 seconds
PM: Finishing wakeup.
Restarting tasks ... done.
$ ata1: SATA link down (SStatus 1 SControl 300)
ata1: SATA link down (SStatus 1 SControl 300)
ata1: limiting SATA link speed to 1.5 Gbps
ata1: SATA link down (SStatus 1 SControl 310)
ata1.00: disabled
ata1: exception Emask 0x10 SAct 0x0 SErr 0x4040000 action 0xe frozen t4
ata1: irq_stat 0x00000040, connection status changed
ata1: SError: { CommWake DevExch }
ata1: hard resetting link
sd 0:0:0:0: rejecting I/O to offline device
sd 0:0:0:0: killing request
sd 0:0:0:0: rejecting I/O to offline device
Aborting journal on device sda2-8.
sd 0:0:0:0: rejecting I/O to offline device
EXT4-fs warning (device sda2): ext4_end_bio:317: I/O error writing to inode 132577 (offset 0 size 0 starting block 26235)
Buffer I/O error on device sda2, logical block 10169
...
It's caused by a silicon issue that SATA phy does not get reset by
controller when coming back from LPM. The patch adds a software
workaround for this issue. It enforces a software reset on SATA phy
in imx_sata_enable() function, so that we can ensure SATA link will
come up properly in both power-on and resume.
The software reset is implemented by writing phy reset register through
the phy control register bus interface. Functions
imx_phy_reg_[addressing|write|read]() implement this bus interface, while
imx_sata_phy_reset() performs the actually reset operation.
Signed-off-by: Richard Zhu <r65037@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Update register enums a little bit to add proper namespace prefix, and
have the names match i.MX reference manual.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Ever since v2.6.19 the code contains a check for CONFIG_NO_ATA_LEGACY.
But that macro has never been defined. Apparently no one ran into
problems on platforms that do not support compatibility mode. So remove
this code that has been dead for over seven years.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tejun Heo <tj@kernel.org>
The SCSI-to-ATA Translation standard says to use data words 25 and 26
unless they are spaces. For devices that use these words in the firmware
field, they are generally more useful anyway.
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata fixes from Tejun Heo:
"Dan updated tag allocation to accomodate devices which choke when tags
jump back and forth. Quite a few ahci MSI related fixes. A couple
config dependency fixes and other misc fixes"
* 'for-3.15-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata/ahci: accommodate tag ordered controllers
ahci: Do not receive interrupts sent by dummy ports
ahci: Use pci_enable_msi_exact() instead of pci_enable_msi_range()
ahci: Ensure "MSI Revert to Single Message" mode is not enforced
ahci: do not request irq for dummy port
pata_samsung_cf: fix ata_host_activate() failure handling
pata_arasan_cf: fix ata_host_activate() failure handling
ata: fix i.MX AHCI driver dependencies
pata_at91: fix ata_host_activate() failure handling
libata: Update queued trim blacklist for M5x0 drives
libata: make AHCI_XGENE depend on PHY_XGENE
On Intel Valleyview SoC, SATA device sleep is not reliable. When
DEVSLP is attempted on certain SSDs, port_devslp write would fail
and result in malfunction of AHCI controller. AHCI controller may
be not shown in PCI enumeration after reset. Complete power source
removal may be required to recover from this failure. So we blacklist
this device and override host device reported capabilities such that
device LPM will only attempt slumber but not DEVSLP.
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The AHCI spec allows implementations to issue commands in tag order
rather than FIFO order:
5.3.2.12 P:SelectCmd
HBA sets pSlotLoc = (pSlotLoc + 1) mod (CAP.NCS + 1)
or HBA selects the command to issue that has had the
PxCI bit set to '1' longer than any other command
pending to be issued.
The result is that commands posted sequentially (time-wise) may play out
of sequence when issued by hardware.
This behavior has likely been hidden by drives that arrange for commands
to complete in issue order. However, it appears recent drives (two from
different vendors that we have found so far) inflict out-of-order
completions as a matter of course. So, we need to take care to maintain
ordered submission, otherwise we risk triggering a drive to fall out of
sequential-io automation and back to random-io processing, which incurs
large latency and degrades throughput.
This issue was found in simple benchmarks where QD=2 seq-write
performance was 30-50% *greater* than QD=32 seq-write performance.
Tagging for -stable and making the change globally since it has a low
risk-to-reward ratio. Also, word is that recent versions of an unnamed
OS also does it this way now. So, drives in the field are already
experienced with this tag ordering scheme.
Cc: <stable@vger.kernel.org>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: Ed Ciechanowski <ed.ciechanowski@intel.com>
Reviewed-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
In multiple MSI mode all AHCI ports (including dummy) get assigned
separate MSI vectors and (as result of execution
pci_enable_msi_exact() function) separate IRQ numbers, (mapped to the
MSI vectors).
Therefore, although interrupts from dummy ports are not desired they
are still enabled. We do not request IRQs for dummy ports, but that
only means we do not assign AHCI-specific ISRs to corresponding IRQ
numbers.
As result, dummy port interrupts still could come and traverse all the
way from the PCI device to the kernel, causing unnecessary overhead.
This update disables IRQs for dummy ports and prevents the described
issue.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Tested-by: David Milburn <dmilburn@redhat.com>
Cc: linux-ide@vger.kernel.org
Cc: stable@vger.kernel.org
Fixes: 5ca72c4f7c ("AHCI: Support multiple MSIs")
The driver calls pci_enable_msi_range() function with the range of
[nvec..nvec] which is what pci_enable_msi_exact() function is for.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
The AHCI specification allows hardware to choose to revert to
single MSI mode when fewer messages are allocated than requested.
Yet, at least ICH10 chipset reverts to single MSI mode even when
enough messages are allocated in some cases (see below).
This update forces the driver to not rely on initialization of
multiple MSIs mode alone and always check if "MSI Revert to
Single Message" (MRSM) mode was enforced by the controller and
fallback to the single MSI mode in case it did.
That prevents a situation when the driver configured multiple
per-port IRQ handlers, but the controller sends all port's
interrupts to a single IRQ, which could easily screw up the
interrupt handling and lead to delays and possibly crashes.
The fix was tested on a 6-port controller that successfully
reverted to the single MSI mode:
00:1f.2 SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA
AHCI Controller (prog-if 01 [AHCI 1.0])
Subsystem: Super Micro Computer Inc Device 10a7
Flags: bus master, 66MHz, medium devsel, latency 0, IRQ 101
I/O ports at f110 [size=8]
I/O ports at f100 [size=4]
I/O ports at f0f0 [size=8]
I/O ports at f0e0 [size=4]
I/O ports at f020 [size=32]
Memory at fbf00000 (32-bit, non-prefetchable) [size=2K]
Capabilities: [80] MSI: Enable+ Count=1/16 Maskable- 64bit-
Capabilities: [70] Power Management version 3
Capabilities: [a8] SATA HBA v1.0
Capabilities: [b0] PCI Advanced Features
Kernel driver in use: ahci
With 6 ports just 8 MSI vectors should be enough, but the adapter
enforces the MRSM mode when less than 16 vectors are written to
the Multiple Messages Enable PCI register. I instigated MRSM mode
by forcing @nvec to 8 in ahci_init_interrupts().
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Cc: linux-ide@vger.kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Tejun Heo <tj@kernel.org>
As a nice side effect this fixes the cf_port leak on
dma_coerce_mask_and_coherent() or ata_host_activate()
failure.
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <david.daney@cavium.com>
Suggested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The ahci_imx driver is only needed on Freescale i.MX platforms so
don't let it be built on other platforms, except for build test
purpose.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Tejun Heo <tj@kernel.org>
Cc: Richard Zhu <r65037@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add missing clk_put() call to ata_host_activate() failure path.
Sergei says,
"Hm, I have once fixed that (see that *if* (!ret)) but looks like a
later commit 477c87e908 (ARM:
at91/pata: use gpio_is_valid to check the gpio) broke it again. :-(
Would be good if the changelog did mention that..."
Cc: Andrew Victor <linux@maxim.org.za>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Crucial/Micron M500 drives properly support queued DSM TRIM starting
with firmware MU05. Update the blacklist so we only disable queued trim
for older firmware releases.
Early M550 series drives suffer from the same issue as M500. A bugfix
firmware is in the pipeline but not ready yet. Until then, blacklist
queued trim for M550.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: Chris Samuel <chris@csamuel.org>
Cc: Marc MERLIN <marc@merlins.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
AHCI_XGENE is only applicable on ARM64 but it can also be enabled for
compile testing; however, AHCI_XGENE selects PHY_XGENE which has other
arch specific dependencies. This leads to the following warning when
enabling it on other archs for compile testing.
warning: (AHCI_XGENE) selects PHY_XGENE which has unmet direct
dependencies (HAS_IOMEM && OF && (ARM64 || COMPILE_TEST))
Selecting a config option which itself has dependencies can easily
lead to broken configurations. For now, let's just make AHCI_XGENE
depend on PHY_XGENE which has all the necessary dependencies already.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Loc Ho <lho@apm.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Kishon Vijay Abraham I <kishon@ti.com>
Enumeration
- Increment max correctly in pci_scan_bridge() (Andreas Noever)
- Clarify the "scan anyway" comment in pci_scan_bridge() (Andreas Noever)
- Assign CardBus bus number only during the second pass (Andreas Noever)
- Use request_resource_conflict() instead of insert_ for bus numbers (Andreas Noever)
- Make sure bus number resources stay within their parents bounds (Andreas Noever)
- Remove pci_fixup_parent_subordinate_busnr() (Andreas Noever)
- Check for child busses which use more bus numbers than allocated (Andreas Noever)
- Don't scan random busses in pci_scan_bridge() (Andreas Noever)
- x86: Drop pcibios_scan_root() check for bus already scanned (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_with_sysdata() (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_on_node() (Bjorn Helgaas)
- x86: Merge pci_scan_bus_on_node() into pcibios_scan_root() (Bjorn Helgaas)
- x86: Drop return value of pcibios_scan_root() (Bjorn Helgaas)
NUMA
- x86: Add x86_pci_root_bus_node() to look up NUMA node from PCI bus (Bjorn Helgaas)
- x86: Use x86_pci_root_bus_node() instead of get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Remove mp_bus_to_node[], set_mp_bus_to_node(), get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Use NUMA_NO_NODE, not -1, for unknown node (Bjorn Helgaas)
- x86: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ia64: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node (Bjorn Helgaas)
- ia64: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ACPI: Fix acpi_get_node() prototype (Bjorn Helgaas)
Resource management
- i2o: Fix and refactor PCI space allocation (Bjorn Helgaas)
- Add resource_contains() (Bjorn Helgaas)
- Add %pR support for IORESOURCE_UNSET (Bjorn Helgaas)
- Mark resources as IORESOURCE_UNSET if we can't assign them (Bjorn Helgaas)
- Don't clear IORESOURCE_UNSET when updating BAR (Bjorn Helgaas)
- Check IORESOURCE_UNSET before updating BAR (Bjorn Helgaas)
- Don't try to claim IORESOURCE_UNSET resources (Bjorn Helgaas)
- Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit (Bjorn Helgaas)
- Don't enable decoding if BAR hasn't been assigned an address (Bjorn Helgaas)
- Add "weak" generic pcibios_enable_device() implementation (Bjorn Helgaas)
- alpha, microblaze, sh, sparc, tile: Use default pcibios_enable_device() (Bjorn Helgaas)
- s390: Use generic pci_enable_resources() (Bjorn Helgaas)
- Don't check resource_size() in pci_bus_alloc_resource() (Bjorn Helgaas)
- Set type in __request_region() (Bjorn Helgaas)
- Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() (Bjorn Helgaas)
- Change pci_bus_alloc_resource() type_mask to unsigned long (Bjorn Helgaas)
- Log IDE resource quirk in dmesg (Bjorn Helgaas)
- Revert "[PATCH] Insert GART region into resource map" (Bjorn Helgaas)
PCI device hotplug
- Make check_link_active() non-static (Rajat Jain)
- Use link change notifications for hot-plug and removal (Rajat Jain)
- Enable link state change notifications (Rajat Jain)
- Don't disable the link permanently during removal (Rajat Jain)
- Don't check adapter or latch status while disabling (Rajat Jain)
- Disable link notification across slot reset (Rajat Jain)
- Ensure very fast hotplug events are also processed (Rajat Jain)
- Add hotplug_lock to serialize hotplug events (Rajat Jain)
- Remove a non-existent card, regardless of "surprise" capability (Rajat Jain)
- Don't turn slot off when hot-added device already exists (Yijing Wang)
MSI
- Keep pci_enable_msi() documentation (Alexander Gordeev)
- ahci: Fix broken single MSI fallback (Alexander Gordeev)
- ahci, vfio: Use pci_enable_msi_range() (Alexander Gordeev)
- Check kmalloc() return value, fix leak of name (Greg Kroah-Hartman)
- Fix leak of msi_attrs (Greg Kroah-Hartman)
- Fix pci_msix_vec_count() htmldocs failure (Masanari Iida)
Virtualization
- Device-specific ACS support (Alex Williamson)
Freescale i.MX6
- Wait for retraining (Marek Vasut)
Marvell MVEBU
- Use Device ID and revision from underlying endpoint (Andrew Lunn)
- Fix incorrect size for PCI aperture resources (Jason Gunthorpe)
- Call request_resource() on the apertures (Jason Gunthorpe)
- Fix potential issue in range parsing (Jean-Jacques Hiblot)
Renesas R-Car
- Check platform_get_irq() return code (Ben Dooks)
- Add error interrupt handling (Ben Dooks)
- Fix bridge logic configuration accesses (Ben Dooks)
- Register each instance independently (Magnus Damm)
- Break out window size handling (Magnus Damm)
- Make the Kconfig dependencies more generic (Magnus Damm)
Synopsys DesignWare
- Fix RC BAR to be single 64-bit non-prefetchable memory (Mohit Kumar)
Miscellaneous
- Remove unused SR-IOV VF Migration support (Bjorn Helgaas)
- Enable INTx if BIOS left them disabled (Bjorn Helgaas)
- Fix hex vs decimal typo in cpqhpc_probe() (Dan Carpenter)
- Clean up par-arch object file list (Liviu Dudau)
- Set IORESOURCE_ROM_SHADOW only for the default VGA device (Sander Eikelenboom)
- ACPI, ARM, drm, powerpc, pcmcia, PCI: Use list_for_each_entry() for bus traversal (Yijing Wang)
- Fix pci_bus_b() build failure (Paul Gortmaker)
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Merge tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"Enumeration
- Increment max correctly in pci_scan_bridge() (Andreas Noever)
- Clarify the "scan anyway" comment in pci_scan_bridge() (Andreas Noever)
- Assign CardBus bus number only during the second pass (Andreas Noever)
- Use request_resource_conflict() instead of insert_ for bus numbers (Andreas Noever)
- Make sure bus number resources stay within their parents bounds (Andreas Noever)
- Remove pci_fixup_parent_subordinate_busnr() (Andreas Noever)
- Check for child busses which use more bus numbers than allocated (Andreas Noever)
- Don't scan random busses in pci_scan_bridge() (Andreas Noever)
- x86: Drop pcibios_scan_root() check for bus already scanned (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_with_sysdata() (Bjorn Helgaas)
- x86: Use pcibios_scan_root() instead of pci_scan_bus_on_node() (Bjorn Helgaas)
- x86: Merge pci_scan_bus_on_node() into pcibios_scan_root() (Bjorn Helgaas)
- x86: Drop return value of pcibios_scan_root() (Bjorn Helgaas)
NUMA
- x86: Add x86_pci_root_bus_node() to look up NUMA node from PCI bus (Bjorn Helgaas)
- x86: Use x86_pci_root_bus_node() instead of get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Remove mp_bus_to_node[], set_mp_bus_to_node(), get_mp_bus_to_node() (Bjorn Helgaas)
- x86: Use NUMA_NO_NODE, not -1, for unknown node (Bjorn Helgaas)
- x86: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ia64: Use NUMA_NO_NODE, not MAX_NUMNODES, for unknown node (Bjorn Helgaas)
- ia64: Remove acpi_get_pxm() usage (Bjorn Helgaas)
- ACPI: Fix acpi_get_node() prototype (Bjorn Helgaas)
Resource management
- i2o: Fix and refactor PCI space allocation (Bjorn Helgaas)
- Add resource_contains() (Bjorn Helgaas)
- Add %pR support for IORESOURCE_UNSET (Bjorn Helgaas)
- Mark resources as IORESOURCE_UNSET if we can't assign them (Bjorn Helgaas)
- Don't clear IORESOURCE_UNSET when updating BAR (Bjorn Helgaas)
- Check IORESOURCE_UNSET before updating BAR (Bjorn Helgaas)
- Don't try to claim IORESOURCE_UNSET resources (Bjorn Helgaas)
- Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit (Bjorn Helgaas)
- Don't enable decoding if BAR hasn't been assigned an address (Bjorn Helgaas)
- Add "weak" generic pcibios_enable_device() implementation (Bjorn Helgaas)
- alpha, microblaze, sh, sparc, tile: Use default pcibios_enable_device() (Bjorn Helgaas)
- s390: Use generic pci_enable_resources() (Bjorn Helgaas)
- Don't check resource_size() in pci_bus_alloc_resource() (Bjorn Helgaas)
- Set type in __request_region() (Bjorn Helgaas)
- Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region() (Bjorn Helgaas)
- Change pci_bus_alloc_resource() type_mask to unsigned long (Bjorn Helgaas)
- Log IDE resource quirk in dmesg (Bjorn Helgaas)
- Revert "[PATCH] Insert GART region into resource map" (Bjorn Helgaas)
PCI device hotplug
- Make check_link_active() non-static (Rajat Jain)
- Use link change notifications for hot-plug and removal (Rajat Jain)
- Enable link state change notifications (Rajat Jain)
- Don't disable the link permanently during removal (Rajat Jain)
- Don't check adapter or latch status while disabling (Rajat Jain)
- Disable link notification across slot reset (Rajat Jain)
- Ensure very fast hotplug events are also processed (Rajat Jain)
- Add hotplug_lock to serialize hotplug events (Rajat Jain)
- Remove a non-existent card, regardless of "surprise" capability (Rajat Jain)
- Don't turn slot off when hot-added device already exists (Yijing Wang)
MSI
- Keep pci_enable_msi() documentation (Alexander Gordeev)
- ahci: Fix broken single MSI fallback (Alexander Gordeev)
- ahci, vfio: Use pci_enable_msi_range() (Alexander Gordeev)
- Check kmalloc() return value, fix leak of name (Greg Kroah-Hartman)
- Fix leak of msi_attrs (Greg Kroah-Hartman)
- Fix pci_msix_vec_count() htmldocs failure (Masanari Iida)
Virtualization
- Device-specific ACS support (Alex Williamson)
Freescale i.MX6
- Wait for retraining (Marek Vasut)
Marvell MVEBU
- Use Device ID and revision from underlying endpoint (Andrew Lunn)
- Fix incorrect size for PCI aperture resources (Jason Gunthorpe)
- Call request_resource() on the apertures (Jason Gunthorpe)
- Fix potential issue in range parsing (Jean-Jacques Hiblot)
Renesas R-Car
- Check platform_get_irq() return code (Ben Dooks)
- Add error interrupt handling (Ben Dooks)
- Fix bridge logic configuration accesses (Ben Dooks)
- Register each instance independently (Magnus Damm)
- Break out window size handling (Magnus Damm)
- Make the Kconfig dependencies more generic (Magnus Damm)
Synopsys DesignWare
- Fix RC BAR to be single 64-bit non-prefetchable memory (Mohit Kumar)
Miscellaneous
- Remove unused SR-IOV VF Migration support (Bjorn Helgaas)
- Enable INTx if BIOS left them disabled (Bjorn Helgaas)
- Fix hex vs decimal typo in cpqhpc_probe() (Dan Carpenter)
- Clean up par-arch object file list (Liviu Dudau)
- Set IORESOURCE_ROM_SHADOW only for the default VGA device (Sander Eikelenboom)
- ACPI, ARM, drm, powerpc, pcmcia, PCI: Use list_for_each_entry() for bus traversal (Yijing Wang)
- Fix pci_bus_b() build failure (Paul Gortmaker)"
* tag 'pci-v3.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (108 commits)
Revert "[PATCH] Insert GART region into resource map"
PCI: Log IDE resource quirk in dmesg
PCI: Change pci_bus_alloc_resource() type_mask to unsigned long
PCI: Check all IORESOURCE_TYPE_BITS in pci_bus_alloc_from_region()
resources: Set type in __request_region()
PCI: Don't check resource_size() in pci_bus_alloc_resource()
s390/PCI: Use generic pci_enable_resources()
tile PCI RC: Use default pcibios_enable_device()
sparc/PCI: Use default pcibios_enable_device() (Leon only)
sh/PCI: Use default pcibios_enable_device()
microblaze/PCI: Use default pcibios_enable_device()
alpha/PCI: Use default pcibios_enable_device()
PCI: Add "weak" generic pcibios_enable_device() implementation
PCI: Don't enable decoding if BAR hasn't been assigned an address
PCI: Enable INTx in pci_reenable_device() only when MSI/MSI-X not enabled
PCI: Mark 64-bit resource as IORESOURCE_UNSET if we only support 32-bit
PCI: Don't try to claim IORESOURCE_UNSET resources
PCI: Check IORESOURCE_UNSET before updating BAR
PCI: Don't clear IORESOURCE_UNSET when updating BAR
PCI: Mark resources as IORESOURCE_UNSET if we can't assign them
...
Conflicts:
arch/x86/include/asm/topology.h
drivers/ata/ahci.c
- Device PM QoS support for latency tolerance constraints on systems with
hardware interfaces allowing such constraints to be specified. That is
necessary to prevent hardware-driven power management from becoming
overly aggressive on some systems and to prevent power management
features leading to excessive latencies from being used in some cases.
- Consolidation of the handling of ACPI hotplug notifications for device
objects. This causes all device hotplug notifications to go through
the root notify handler (that was executed for all of them anyway
before) that propagates them to individual subsystems, if necessary,
by executing callbacks provided by those subsystems (those callbacks
are associated with struct acpi_device objects during device
enumeration). As a result, the code in question becomes both smaller
in size and more straightforward and all of those changes should not
affect users.
- ACPICA update, including fixes related to the handling of _PRT in cases
when it is broken and the addition of "Windows 2013" to the list of
supported "features" for _OSI (which is necessary to support systems
that work incorrectly or don't even boot without it). Changes from
Bob Moore and Lv Zheng.
- Consolidation of ACPI _OST handling from Jiang Liu.
- ACPI battery and AC fixes allowing unusual system configurations to
be handled by that code from Alexander Mezin.
- New device IDs for the ACPI LPSS driver from Chiau Ee Chew.
- ACPI fan and thermal optimizations related to system suspend and resume
from Aaron Lu.
- Cleanups related to ACPI video from Jean Delvare.
- Assorted ACPI fixes and cleanups from Al Stone, Hanjun Guo, Lan Tianyu,
Paul Bolle, Tomasz Nowicki.
- Intel RAPL (Running Average Power Limits) driver cleanups from Jacob Pan.
- intel_pstate fixes and cleanups from Dirk Brandewie.
- cpufreq fixes related to system suspend/resume handling from Viresh Kumar.
- cpufreq core fixes and cleanups from Viresh Kumar, Stratos Karafotis,
Saravana Kannan, Rashika Kheria, Joe Perches.
- cpufreq drivers updates from Viresh Kumar, Zhuoyu Zhang, Rob Herring.
- cpuidle fixes related to the menu governor from Tuukka Tikkanen.
- cpuidle fix related to coupled CPUs handling from Paul Burton.
- Asynchronous execution of all device suspend and resume callbacks,
except for ->prepare and ->complete, during system suspend and resume
from Chuansheng Liu.
- Delayed resuming of runtime-suspended devices during system suspend for
the PCI bus type and ACPI PM domain.
- New set of PM helper routines to allow device runtime PM callbacks to
be used during system suspend and resume more easily from Ulf Hansson.
- Assorted fixes and cleanups in the PM core from Geert Uytterhoeven,
Prabhakar Lad, Philipp Zabel, Rashika Kheria, Sebastian Capella.
- devfreq fix from Saravana Kannan.
/
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Merge tag 'pm+acpi-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
"The majority of this material spent some time in linux-next, some of
it even several weeks. There are a few relatively fresh commits in
it, but they are mostly fixes and simple cleanups.
ACPI took the lead this time, both in terms of the number of commits
and the number of modified lines of code, cpufreq follows and there
are a few changes in the PM core and in cpuidle too.
A new feature that already got some LWN.net's attention is the device
PM QoS extension allowing latency tolerance requirements to be
propagated from leaf devices to their ancestors with hardware
interfaces for specifying latency tolerance. That should help systems
with hardware-driven power management to avoid going too far with it
in cases when there are latency tolerance constraints.
There also are some significant changes in the ACPI core related to
the way in which hotplug notifications are handled. They affect PCI
hotplug (ACPIPHP) and the ACPI dock station code too. The bottom line
is that all those notification now go through the root notify handler
and are propagated to the interested subsystems by means of callbacks
instead of having to install a notify handler for each device object
that we can potentially get hotplug notifications for.
In addition to that ACPICA will now advertise "Windows 2013"
compatibility for _OSI, because some systems out there don't work
correctly if that is not done (some of them don't even boot).
On the system suspend side of things, all of the device suspend and
resume callbacks, except for ->prepare() and ->complete(), are now
going to be executed asynchronously as that turns out to speed up
system suspend and resume on some platforms quite significantly and we
have a few more optimizations in that area.
Apart from that, there are some new device IDs and fixes and cleanups
all over. In particular, the system suspend and resume handling by
cpufreq should be improved and the cpuidle menu governor should be a
bit more robust now.
Specifics:
- Device PM QoS support for latency tolerance constraints on systems
with hardware interfaces allowing such constraints to be specified.
That is necessary to prevent hardware-driven power management from
becoming overly aggressive on some systems and to prevent power
management features leading to excessive latencies from being used
in some cases.
- Consolidation of the handling of ACPI hotplug notifications for
device objects. This causes all device hotplug notifications to go
through the root notify handler (that was executed for all of them
anyway before) that propagates them to individual subsystems, if
necessary, by executing callbacks provided by those subsystems
(those callbacks are associated with struct acpi_device objects
during device enumeration). As a result, the code in question
becomes both smaller in size and more straightforward and all of
those changes should not affect users.
- ACPICA update, including fixes related to the handling of _PRT in
cases when it is broken and the addition of "Windows 2013" to the
list of supported "features" for _OSI (which is necessary to
support systems that work incorrectly or don't even boot without
it). Changes from Bob Moore and Lv Zheng.
- Consolidation of ACPI _OST handling from Jiang Liu.
- ACPI battery and AC fixes allowing unusual system configurations to
be handled by that code from Alexander Mezin.
- New device IDs for the ACPI LPSS driver from Chiau Ee Chew.
- ACPI fan and thermal optimizations related to system suspend and
resume from Aaron Lu.
- Cleanups related to ACPI video from Jean Delvare.
- Assorted ACPI fixes and cleanups from Al Stone, Hanjun Guo, Lan
Tianyu, Paul Bolle, Tomasz Nowicki.
- Intel RAPL (Running Average Power Limits) driver cleanups from
Jacob Pan.
- intel_pstate fixes and cleanups from Dirk Brandewie.
- cpufreq fixes related to system suspend/resume handling from Viresh
Kumar.
- cpufreq core fixes and cleanups from Viresh Kumar, Stratos
Karafotis, Saravana Kannan, Rashika Kheria, Joe Perches.
- cpufreq drivers updates from Viresh Kumar, Zhuoyu Zhang, Rob
Herring.
- cpuidle fixes related to the menu governor from Tuukka Tikkanen.
- cpuidle fix related to coupled CPUs handling from Paul Burton.
- Asynchronous execution of all device suspend and resume callbacks,
except for ->prepare and ->complete, during system suspend and
resume from Chuansheng Liu.
- Delayed resuming of runtime-suspended devices during system suspend
for the PCI bus type and ACPI PM domain.
- New set of PM helper routines to allow device runtime PM callbacks
to be used during system suspend and resume more easily from Ulf
Hansson.
- Assorted fixes and cleanups in the PM core from Geert Uytterhoeven,
Prabhakar Lad, Philipp Zabel, Rashika Kheria, Sebastian Capella.
- devfreq fix from Saravana Kannan"
* tag 'pm+acpi-3.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (162 commits)
PM / devfreq: Rewrite devfreq_update_status() to fix multiple bugs
PM / sleep: Correct whitespace errors in <linux/pm.h>
intel_pstate: Set core to min P state during core offline
cpufreq: Add stop CPU callback to cpufreq_driver interface
cpufreq: Remove unnecessary braces
cpufreq: Fix checkpatch errors and warnings
cpufreq: powerpc: add cpufreq transition latency for FSL e500mc SoCs
MAINTAINERS: Reorder maintainer addresses for PM and ACPI
PM / Runtime: Update runtime_idle() documentation for return value meaning
video / output: Drop display output class support
fujitsu-laptop: Drop unneeded include
acer-wmi: Stop selecting VIDEO_OUTPUT_CONTROL
ACPI / gpu / drm: Stop selecting VIDEO_OUTPUT_CONTROL
ACPI / video: fix ACPI_VIDEO dependencies
cpufreq: remove unused notifier: CPUFREQ_{SUSPENDCHANGE|RESUMECHANGE}
cpufreq: Do not allow ->setpolicy drivers to provide ->target
cpufreq: arm_big_little: set 'physical_cluster' for each CPU
cpufreq: arm_big_little: make vexpress driver depend on bL core driver
ACPI / button: Add ACPI Button event via netlink routine
ACPI: Remove duplicate definitions of PREFIX
...
Pull libata updates from Tejun Heo:
"A lot of activities on libata side this time.
- A lot of changes around ahci. Various embedded platforms are
implementing ahci controllers. Some were built atop ahci_platform,
others were doing their own things. Hans made some structural
changes to libahci and librarized ahci_platform so that ahci
platform drivers can share more common code. A couple platform
drivers are added on top of that and several are added to replace
older drivers which were doing their own things (older ones are
scheduled to be removed).
- Dan finishes the patchset to make libata PM operations
asynchronous. Combined with one patch being routed through scsi,
this should speed resume measurably.
- Various fixes and cleanups from Bartlomiej and others"
* 'for-3.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (61 commits)
ata: fix Marvell SATA driver dependencies
ata: fix ARASAN CompactFlash PATA driver dependencies
ata: remove superfluous casts
ata: sata_highbank: remove superfluous cast
ata: fix Calxeda Highbank SATA driver dependencies
ata: fix R-Car SATA driver dependencies
ARM: davinci: da850: update SATA AHCI support
ata: add new-style AHCI platform driver for DaVinci DA850 AHCI controller
ata: move library code from ahci_platform.c to libahci_platform.c
ata: ahci_platform: fix ahci_platform_data->suspend method handling
libata: remove unused ata_sas_port_async_resume() stub
libata.h: add stub for ata_sas_port_resume
libata: async resume
libata, libsas: kill pm_result and related cleanup
ata: Fix compiler warning with APM X-Gene host controller driver
arm64: Add APM X-Gene SoC AHCI SATA host controller DTS entries
ata: Add APM X-Gene SoC AHCI SATA host controller driver
Documentation: Add documentation for the APM X-Gene SoC SATA host controller DTS binding
arm64: Add APM X-Gene SoC 15Gbps Multi-purpose PHY DTS entries
ata: ahci_sunxi: fix code formatting
...
Make sata_mv host driver depend on PCI || ARCH_DOVE || ARCH_KIRKWOOD ||
ARCH_MV78XX0 || ARCH_MVEBU || ARCH_ORION5X config options as Marvell
SATA support covers both Marvell PCI devices and Marvell Dove, Kirkwood,
MV78xx0, Armada 370/XP and Orion5x SoCs (for non-PCI devices the driver
to work requires suitable device tree node or platform device to be
defined). Additionally allow the driver build if COMPILE_TEST config
option is set.
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Make pata_arasan_cf host driver depend on ARCH_SPEAR13XX config
option as ARASAN CompactFlash PATA support is specific to ST
SPEAr13xx SoCs and the driver to work requires suitable device
tree node (or platform device) to be defined. Additionally
allow the driver build if COMPILE_TEST config option is set.
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Unreferenced casts of void * types are unnecessary so remove them.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
hpriv->plat_data is 'void *' so there is no need to cast it to
'struct ecx_plat_data *'.
Cc: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Make sata_highbank host driver depend on ARCH_HIGHBANK config option
as Calxeda Highbank SATA support is specific to Calxeda Highbank
SoCs and the driver to work requires suitable device tree node to
be defined. Additionally allow the driver build if COMPILE_TEST
config option is set.
Cc: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Make sata_rcar host driver depend on ARCH_SHMOBILE config option as
Renesas R-Car SATA support is specific to Renesas SoCs and the driver
to work requires suitable device tree node (or platform device) to be
defined. Additionally allow the driver build if COMPILE_TEST config
option is set.
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add the new ahci_da850 host driver.
Platform changes needed to make DaVinci DA850 SATA AHCI support
fully functional are in the separate "ARM: davinci: da850: update
SATA AHCI support" commit.
Please note that this driver doesn't have the superfluous clock
control code as clock is already handled by the generic AHCI
platform library code.
Cc: Sekhar Nori <nsekhar@ti.com>
Cc: Kevin Hilman <khilman@deeprootsystems.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Move AHCI platform library code from ahci_platform.c to
libahci_platform.c and fix dependencies for ahci_st,
ahci_imx and ahci_sunxi drivers.
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Looking at ST SPEAr1340 AHCI code (the only user of the deprecated
pdata->suspend and pdata->resume) it is obvious the we should return
after calling pdata->suspend() only if the function have returned
non-zero return value. The code has been broken since commit 1e70c2
("ata/ahci_platform: Add clock framework support"). Fix it.
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Improve overall system resume time by making libata link recovery
actions asynchronous relative to other resume events.
Link resume operations are performed using the scsi_eh thread, so
commands, particularly the sd resume start/stop command, will be held
off until the device exits error handling. Libata already flushes eh
with ata_port_wait_eh() in the port teardown paths, so there are no
concerns with async operation colliding with the end-of-life of the
ata_port object. Also, libata-core is already careful to flush
in-flight pm operations before another round of pm starts on the given
ata_port.
Reference: https://01.org/suspendresume/blogs/tebrandt/2013/hard-disk-resume-optimization-simpler-approach
Cc: Len Brown <len.brown@intel.com>
Cc: Phillip Susi <psusi@ubuntu.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Todd Brandt <todd.e.brandt@linux.intel.com>
[djbw: rebase on cleanup patch, changelog wordsmithing]
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Tejun says:
"At least for libata, worrying about suspend/resume failures don't make
whole lot of sense. If suspend failed, just proceed with suspend. If
the device can't be woken up afterwards, that's that. There isn't
anything we could have done differently anyway. The same for resume, if
spinup fails, the device is dud and the following commands will invoke
EH actions and will eventually fail. Again, there really isn't any
*choice* to make. Just making sure the errors are handled gracefully
(ie. don't crash) and the following commands are handled correctly
should be enough."
The only libata user that actually cares about the result from a suspend
operation is libsas. However, it only cares about whether queuing a new
operation collides with an in-flight one. All libsas does with the
error is retry, but we can just let libata wait for the previous
operation before continuing.
Other cleanups include:
1/ Unifying all ata port pm operations on an ata_port_pm_ prefix
2/ Marking all ata port pm helper routines as returning void, only
ata_port_pm_ entry points need to fake a 0 return value.
3/ Killing ata_port_{suspend|resume}_common() in favor of calling
ata_port_request_pm() directly
4/ Killing the wrappers that just do a to_ata_port() conversion
5/ Clearly marking the entry points that do async operations with an
_async suffix.
Reference: http://marc.info/?l=linux-scsi&m=138995409532286&w=2
Cc: Phillip Susi <psusi@ubuntu.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Suggested-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Todd Brandt <todd.e.brandt@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch fixes an compiler warning with APM X-Gene host controller
driver when compiled with DEBUG enabled.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch adds support for the APM X-Gene SoC AHCI SATA host controller
driver. It requires the corresponding APM X-Gene SoC PHY driver. This
initial version only supports Gen3 speed.
Signed-off-by: Loc Ho <lho@apm.com>
Signed-off-by: Tuan Phan <tphan@apm.com>
Signed-off-by: Suman Tripathi <stripathi@apm.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
* acpi-hotplug:
ACPI / hotplug: Rework deferred execution of acpi_device_hotplug()
ACPI / dock: Update copyright notice
ACPI / dock: Drop remove_dock_dependent_devices()
ACPI / dock: Drop struct acpi_dock_ops and all code related to it
ACPI / ATA: Add hotplug contexts to ACPI companions of SATA devices
ACPI / dock: Add .uevent() callback to struct acpi_hotplug_context
ACPI / dock: Use callback pointers from devices' ACPI hotplug contexts
ACPI / dock: Use ACPI device object pointers instead of ACPI handles
ACPI / hotplug: Add .fixup() callback to struct acpi_hotplug_context
ACPI / hotplug / PCI: Do not clear event callback pointer for docks
ACPI / dock: Associate dock platform devices with ACPI device objects
ACPI / dock: Pass ACPI device pointer to acpi_device_is_battery()
ACPI / dock: Dispatch dock notifications from the global notify handler
devm_ioremap_resource() returns a pointer to the remapped memory or
an ERR_PTR() encoded error code on failure. Fix the check inside
ahci_platform_get_resources() accordingly.
Also while at it remove a needless line break.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
devm_ioremap_resource() returns a pointer to the remapped memory or
an ERR_PTR() encoded error code on failure. Fix the check inside
pata_imx_probe() accordingly.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
struct ahci_platform_data is deprecated (please see comments in
<linux/ahci_platform.h> for details). Convert ahci_st driver to
use custom ->host_stop method instead.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
* The config option for ahci_st driver was renamed from
CONFIG_SATA_AHCI_ST to CONFIG_AHCI_ST but Makefile was
not updated. Fix it (also while at it move the ahci_st
driver entry below ahci_imx and ahci_sunxi ones).
* Fix a few build issues in the ahci_st driver itself.
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Now that we can directly get the ACPI device conterpart of the physical
ATA transport device, the odd_can_poweroff can be eliminated.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
If ACPI handle for an ATA device is NULL, we shouldn't call
ata_dev_get_GTF as that function will use handle to do some ACPI
evaluation.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
ZPODD is built on top of runtime PM functionality, it doesn't make sense
to have it in a kernel that doesn't have CONFIG_PM_RUNTIME set.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The SC1200 is a SoC based on the Geode GX1 32-bit x86 processor, so
its drivers are only needed on this architecture, except for build
testing purpose.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
This is where we disable IRQs on suspend and update the internal
power state during suspend/resume.
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
This device is designed specifically to run on ST-Microelectronics'
hardware. To ensure no attempts are made to run on anything incompatible
we add a dependency on ST architecture
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
ata_platform_remove_one() allows us to specify our own exit function
via platform data then goes off and removes ATA Host and Port in
preparation for device removal.
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Other devices have adopted similar naming conventions which have been
accepted as the standard. This patch brings any mention of the the ST
AHCI driver into line with them.
Suggested-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
The current flow of control prevents this function from being
called. Let's remove the call.
Signed-off-by: Silvan Jegen <s.jegen@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
As far as I know, the CS5520 and CS5530 chipsets were only used with
32-bit x86 Geode processors, so I think their drivers are only needed
on this architecture, except for build testing purpose.
While we're here, simplify the dependencies for the CS5535 driver.
The CS5536 was used with the Geode processors, but also on MIPS
Loongson/Lemote 2 systems, so let its driver be built for these two
architectures only, except for build testing purpose.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Pull libata fixlet from Tejun Heo:
"I merged the two blaclist entries into 'Crucial_CT???M500SSD*'"
* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: use wider match for blacklisting Crucial M500
We're now blacklisting "Crucial_CT???M500SSD1" and
"Crucial_CT???M500SSD3". Also, "Micron_M500*" is blacklisted which is
about the same devices as the crucial branded ones. Let's merge the
two Crucial M500 entries and widen the match to
"Crucial_CT???M500SSD*" so that we don't have to fiddle with new
entries for similar devices.
Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: stable@vger.kernel.org
Prompted by the social effort in the US to discourage usage of the
adjective "retarded".
In this case we needlessly anthropomorphize hard drives. The
implication is that due to design deficiencies in the device reset
recovery time is negatively impacted. We can simply clearly state that
fact. "Exceptional devices cause outliers in reset recovery time." This
steers clear of any unintended comparison of such devices to humans with
cognitive disabilities.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Via commit 87809942d3 "libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk
for Seagate Momentus SpinPoint M8" we added a quirk for disks named
"ST1000LM024 HN-M101MBB" with firmware revision "2AR10001".
As reported on https://bugzilla.redhat.com/show_bug.cgi?id=1073901,
we need to also add firmware revision 2BA30001 as it is broken as well.
Reported-by: Nicholas <arealityfarbetween@googlemail.com>
Signed-off-by: Michele Baldessari <michele@acksyn.org>
Tested-by: Guilherme Amadio <guilherme.amadio@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This fixes the following warnings when CONFIG_PM_SLEEP is not set:
drivers/ata/ahci_imx.c:284:12: warning: ‘imx_ahci_suspend’ defined but not used [-Wunused-function]
drivers/ata/ahci_imx.c:299:12: warning: ‘imx_ahci_resume’ defined but not used [-Wunused-function]
Reported-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Cc: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Queued TRIM commands cause problems and silent file system corruption
on Crucial M500 SSDs. This patch disables them for the mSATA model of
the drive.
Signed-off-by: Marios Andreopoulos <opensource@andmarios.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # 3.12+
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=71371
ahci_sunxi_phy_init is called from the probe and resume code paths, and
sleeping is safe in both, so use msleep instead of mdelay.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
These members are not used anywhere, and in the future we want
ahci_platform_data to go away entirely so there is no reason to keep these
around.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Since the 3.13 release the ahci_imx driver has proper devicetree enabled
support for ahci on imx53 and that is used instead of the old board file
created imx53-ahci platform device.
Note this patch also complete drops the id-table, an id-table is not needed
for a single id platform driver, the name field in the driver struct suffices.
And the code already has an explicit "MODULE_ALIAS("platform:ahci");" so the
id-table is not needed for that either.
Cc: Marek Vasut <marex@denx.de>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
I've done a grep over the entire kernel tree and nothing is using this
(anymore?).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
On OMAP platforms the device needs to be runtime resumed before it can
be accessed. The OMAP HWMOD framework takes care of enabling the
module and its resources based on the device's runtime PM state.
In this patch we runtime resume during .probe() and runtime suspend
after .remove().
We also update the runtime PM state during .resume().
CC: Balaji T K <balajitk@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some platforms have a PHY hooked up to the SATA controller. The PHY
needs to be initialized and powered up for SATA to work. We do that
using the PHY framework.
tj: Minor comment formatting updates.
CC: Balaji T K <balajitk@ti.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo<tj@kernel.org>
Add compatible string "snps,dwc-ahci", which should be used
for Synopsis Designware SATA cores. e.g. on TI OMAP5 and DRA7 platforms.
Signed-off-by: Roger Quadros <rogerq@ti.com>
Reviewed-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This avoids the ugliness of creating a nested platform device from probe.
While moving it around anyways, move the mk6q phy init code from probe
to imx_sata_enable, as the phy needs to be re-initialized on resume too,
otherwise the drive won't be recognized after resume.
Tested on a wandboard i.mx6 quad.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch adds support for the ahci sata controler found on Allwinner A10
and A20 SoCs to the ahci_platform driver.
Orignally written by Olliver Schinagl using the approach of having a platform
device which probe method creates a new child platform device which gets
driven by ahci_platform.c, as done by ahci_imx.c .
Refactored by Hans de Goede to add most of the non sunxi specific functionality
to ahci_platform.c and use a platform_data pointer from of_device_id for the
sunxi specific bits.
Signed-off-by: Olliver Schinagl <oliver@schinagl.nl>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Split suspend / resume code into host suspend / resume functionality and
resource enable / disabling phases, and export the new suspend_ / resume_host
functions.
tj: Minor comment formatting updates.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
ahci_probe consists of 3 steps:
1) Get resources (get mmio, clks, regulator)
2) Enable resources, handled by ahci_platform_enable_resouces
3) The more or less standard ahci-host controller init sequence
This commit refactors step 1 and 3 into separate functions, so the platform
drivers for AHCI implementations which need a specific order in step 2,
and / or need to do some custom register poking at some time, can re-use
ahci-platform.c code without needing to copy and paste it.
Note that ahci_platform_init_host's prototype takes the 3 non function
members of ahci_platform_data as arguments, the idea is that drivers using
the new exported utility functions will not use ahci_platform_data at all,
and hopefully in the future ahci_platform_data can go away entirely.
tj: Minor comment formatting updates.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The allwinner-sun4i AHCI controller needs 2 clocks to be enabled and the
imx AHCI controller needs 3 clocks to be enabled.
tj: Minor comment formatting updates.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Allwinner A10 and A20 ARM SoCs have an AHCI sata controller which needs a
special register to be poked before starting the DMA engine.
This register gets reset on an ahci_stop_engine call, so there is no other
place then ahci_start_engine where this poking can be done.
This commit allows drivers to override ahci_start_engine behavior for use by
the Allwinner AHCI driver (and potentially other drivers in the future).
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Modify the SATA subsystem to add hotplug contexts to ACPI companions
of SATA devices and ports instead of registering special ACPI dock
operations using register_hotplug_dock_device().
That change will allow the entire code handling those special ACPI
dock operations to be dropped in the next commit.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
MSI
- Fix AHCI single-MSI fallback (Alexander Gordeev)
- Fix populate_msi_sysfs() error paths (Greg Kroah-Hartman)
- Fix htmldocs problem (Masanari Iida)
- Add pci_enable_msi_exact() and pci_enable_msix_exact() (Alexander Gordeev)
- Update documentation (Alexander Gordeev)
Miscellaneous
- mvebu: expose device ID & revision via lspci (Andrew Lunn)
- Enable INTx if the BIOS left them disabled (Bjorn Helgaas)
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Merge tag 'pci-v3.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI updates from Bjorn Helgaas:
"The most interesting thing here is the change to enable INTx (by
clearing PCI_COMMAND_INTX_DISABLE) if the BIOS left INTx disabled.
Apparently the Baytrail BIOS does this, which means EHCI doesn't work.
Also, fix an AHCI MSI regression and other issues with the recent MSI
changes. This also adds pci_enable_msi_exact() and
pci_enable_msix_exact(), which aren't regression fixes, but will keep
us from touching drivers twice (once to stop using the deprecated
pci_enable_msi(), etc., and again to use the *_exact() variants).
There's also a minor MVEBU fix.
Summary:
MSI:
- Fix AHCI single-MSI fallback (Alexander Gordeev)
- Fix populate_msi_sysfs() error paths (Greg Kroah-Hartman)
- Fix htmldocs problem (Masanari Iida)
- Add pci_enable_msi_exact() and pci_enable_msix_exact() (Alexander Gordeev)
- Update documentation (Alexander Gordeev)
Miscellaneous:
- mvebu: expose device ID & revision via lspci (Andrew Lunn)
- Enable INTx if the BIOS left them disabled (Bjorn Helgaas)"
* tag 'pci-v3.14-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
ahci: Fix broken fallback to single MSI mode
PCI: Enable INTx if BIOS left them disabled
PCI/MSI: Add pci_enable_msi_exact() and pci_enable_msix_exact()
PCI/MSI: Fix cut-and-paste errors in documentation
PCI/MSI: Add pci_enable_msi() documentation back
PCI/MSI: Fix pci_msix_vec_count() htmldocs failure
PCI/MSI: Fix leak of msi_attrs
PCI/MSI: Check kmalloc() return value, fix leak of name
PCI: mvebu: Use Device ID and revision from underlying endpoint
Pull libata fixes from Tejun Heo:
"Various device specific fixes. Nothing too interesting"
* 'for-3.14-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: disable NCQ on Samsung pci-e SSDs on macbooks
ata: sata_mv: Cleanup only the initialized ports
sata_sil: apply MOD15WRITE quirk to TOSHIBA MK2561GSYN
ata: enable quirk from jmicron JMB350 for JMB394
ATA: SATA_MV: Add missing Kconfig select statememnt
ata: pata_imx: Check the return value from clk_prepare_enable()
sparse says:
drivers/ata/libahci.c:1390:5: warning:
symbol 'ahci_pmp_retry_softreset' was not declared. Should it be static?
Signed-off-by: Daeseok Youn <daeseok.youn@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch fix spelling typo in Documentation/DocBook.
It is because .html and .xml files are generated by make htmldocs,
I have to fix a typo within the source files.
Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Let users know that CONFIG_ATA is the kconfig symbol for libata,
since libata is mentioned in documentation and messages several
times.
Also correct a grammar typo.
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
No need to return a 'fake' return value on platform_get_irq() failure.
Just return the error code itself instead.
Also, change the error condition to irq < 0, so that only negative values
are treated as errors.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Using devm_ioremap_resource() can lead to code simplication, as we don't need
to explicitily check for error returned by platform_get_resource().
Also, no need to print an error message when devm_ioremap_resource() fails,
as the OOM code code will shout loudly on such condition.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Samsung's pci-e SSDs with device ID 0x1600 which are found on some
macbooks time out on NCQ commands. Blacklist NCQ on the device so
that the affected machines can at least boot.
Original-patch-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=60731
Cc: stable@vger.kernel.org
When an error occurs in the port initialization loop, currently the
driver tries to cleanup all the ports. This results in a NULL pointer
dereference if the ports were only partially initialized.
Fix this by updating only the number of initialized ports (either
with failure or successfully), before jumping to the error path
and looping over that number in the cleanup loop.
Cc: Andrew Lunn <andrew@lunn.ch>
Reported-by: Mikael Pettersson <mikpelinux@gmail.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Commit 7b92b4f61e ("PCI/MSI: Remove pci_enable_msi_block_auto()")
introduced a regression: if multiple MSI initialization fails, the code
falls back to INTx rather than to single MSI.
Fixes: 7b92b4f61e ("PCI/MSI: Remove pci_enable_msi_block_auto()")
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Commit 7b92b4f61e ("PCI/MSI: Remove pci_enable_msi_block_auto()")
introduced a regression: if multiple MSI initialization fails, the code
falls back to INTx rather than to single MSI.
Fixes: 7b92b4f61e ("PCI/MSI: Remove pci_enable_msi_block_auto()")
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
None of these files are actually using any __init type directives
and hence don't need to include <linux/init.h>. Most are just a
left over from __devinit and __cpuinit removal, or simply due to
code getting copied from one driver to the next.
Cc: linux-ide@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Make use of devm_phy_optional_get() in order to fix probe failures on
Armada 370, XP and others, when there is no phy driver available.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
It's a bit odd to see a newer device showing mod15write; however, the
reported behavior is highly consistent and other factors which could
contribute seem to have been verified well enough. Also, both
sata_sil itself and the drive are fairly outdated at this point making
the risk of this change fairly low. It is possible, probably likely,
that other drive models in the same family have the same problem;
however, for now, let's just add the specific model which was tested.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: matson <lists-matsonpa@luxsci.me>
References: http://lkml.kernel.org/g/201401211912.s0LJCk7F015058@rs103.luxsci.com
Cc: stable@vger.kernel.org
Without the patch the kernel generates the following error.
ata11.15: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
ata11.15: Port Multiplier vendor mismatch '0x197b' != '0x123'
ata11.15: PMP revalidation failed (errno=-19)
ata11.15: failed to recover PMP after 5 tries, giving up
This patch helps to bypass this error and the device becomes
functional.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: <linux-ide@vger.kernel.org>
Cc: stable@vger.kernel.org
SATA_MV depends on GENERIC_PHY. So if SATA_MV is built in, GENERIC_PHY
cannot be modular. Fixes build error found by kbuild test robot.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tejun Heo <tj@kernel.org>
clk_prepare_enable() may fail, so let's check its return value and propagate it
in the case of error.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
- ACPI core changes to make it create a struct acpi_device object for every
device represented in the ACPI tables during all namespace scans regardless
of the current status of that device. In accordance with this, ACPI hotplug
operations will not delete those objects, unless the underlying ACPI tables
go away.
- On top of the above, new sysfs attribute for ACPI device objects allowing
user space to check device status by triggering the execution of _STA for
its ACPI object. From Srinivas Pandruvada.
- ACPI core hotplug changes reducing code duplication, integrating the
PCI root hotplug with the core and reworking container hotplug.
- ACPI core simplifications making it use ACPI_COMPANION() in the code
"glueing" ACPI device objects to "physical" devices.
- ACPICA update to upstream version 20131218. This adds support for the
DBG2 and PCCT tables to ACPICA, fixes some bugs and improves debug
facilities. From Bob Moore, Lv Zheng and Betty Dall.
- Init code change to carry out the early ACPI initialization earlier.
That should allow us to use ACPI during the timekeeping initialization
and possibly to simplify the EFI initialization too. From Chun-Yi Lee.
- Clenups of the inclusions of ACPI headers in many places all over from
Lv Zheng and Rashika Kheria (work in progress).
- New helper for ACPI _DSM execution and rework of the code in drivers
that uses _DSM to execute it via the new helper. From Jiang Liu.
- New Win8 OSI blacklist entries from Takashi Iwai.
- Assorted ACPI fixes and cleanups from Al Stone, Emil Goode, Hanjun Guo,
Lan Tianyu, Masanari Iida, Oliver Neukum, Prarit Bhargava, Rashika Kheria,
Tang Chen, Zhang Rui.
- intel_pstate driver updates, including proper Baytrail support, from
Dirk Brandewie and intel_pstate documentation from Ramkumar Ramachandra.
- Generic CPU boost ("turbo") support for cpufreq from Lukasz Majewski.
- powernow-k6 cpufreq driver fixes from Mikulas Patocka.
- cpufreq core fixes and cleanups from Viresh Kumar, Jane Li, Mark Brown.
- Assorted cpufreq drivers fixes and cleanups from Anson Huang, John Tobias,
Paul Bolle, Paul Walmsley, Sachin Kamat, Shawn Guo, Viresh Kumar.
- cpuidle cleanups from Bartlomiej Zolnierkiewicz.
- Support for hibernation APM events from Bin Shi.
- Hibernation fix to avoid bringing up nonboot CPUs with ACPI EC disabled
during thaw transitions from Bjørn Mork.
- PM core fixes and cleanups from Ben Dooks, Leonardo Potenza, Ulf Hansson.
- PNP subsystem fixes and cleanups from Dmitry Torokhov, Levente Kurusa,
Rashika Kheria.
- New tool for profiling system suspend from Todd E Brandt and a cpupower
tool cleanup from One Thousand Gnomes.
/
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Merge tag 'pm+acpi-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
"As far as the number of commits goes, the top spot belongs to ACPI
this time with cpufreq in the second position and a handful of PM
core, PNP and cpuidle updates. They are fixes and cleanups mostly, as
usual, with a couple of new features in the mix.
The most visible change is probably that we will create struct
acpi_device objects (visible in sysfs) for all devices represented in
the ACPI tables regardless of their status and there will be a new
sysfs attribute under those objects allowing user space to check that
status via _STA.
Consequently, ACPI device eject or generally hot-removal will not
delete those objects, unless the table containing the corresponding
namespace nodes is unloaded, which is extremely rare. Also ACPI
container hotplug will be handled quite a bit differently and cpufreq
will support CPU boost ("turbo") generically and not only in the
acpi-cpufreq driver.
Specifics:
- ACPI core changes to make it create a struct acpi_device object for
every device represented in the ACPI tables during all namespace
scans regardless of the current status of that device. In
accordance with this, ACPI hotplug operations will not delete those
objects, unless the underlying ACPI tables go away.
- On top of the above, new sysfs attribute for ACPI device objects
allowing user space to check device status by triggering the
execution of _STA for its ACPI object. From Srinivas Pandruvada.
- ACPI core hotplug changes reducing code duplication, integrating
the PCI root hotplug with the core and reworking container hotplug.
- ACPI core simplifications making it use ACPI_COMPANION() in the
code "glueing" ACPI device objects to "physical" devices.
- ACPICA update to upstream version 20131218. This adds support for
the DBG2 and PCCT tables to ACPICA, fixes some bugs and improves
debug facilities. From Bob Moore, Lv Zheng and Betty Dall.
- Init code change to carry out the early ACPI initialization
earlier. That should allow us to use ACPI during the timekeeping
initialization and possibly to simplify the EFI initialization too.
From Chun-Yi Lee.
- Clenups of the inclusions of ACPI headers in many places all over
from Lv Zheng and Rashika Kheria (work in progress).
- New helper for ACPI _DSM execution and rework of the code in
drivers that uses _DSM to execute it via the new helper. From
Jiang Liu.
- New Win8 OSI blacklist entries from Takashi Iwai.
- Assorted ACPI fixes and cleanups from Al Stone, Emil Goode, Hanjun
Guo, Lan Tianyu, Masanari Iida, Oliver Neukum, Prarit Bhargava,
Rashika Kheria, Tang Chen, Zhang Rui.
- intel_pstate driver updates, including proper Baytrail support,
from Dirk Brandewie and intel_pstate documentation from Ramkumar
Ramachandra.
- Generic CPU boost ("turbo") support for cpufreq from Lukasz
Majewski.
- powernow-k6 cpufreq driver fixes from Mikulas Patocka.
- cpufreq core fixes and cleanups from Viresh Kumar, Jane Li, Mark
Brown.
- Assorted cpufreq drivers fixes and cleanups from Anson Huang, John
Tobias, Paul Bolle, Paul Walmsley, Sachin Kamat, Shawn Guo, Viresh
Kumar.
- cpuidle cleanups from Bartlomiej Zolnierkiewicz.
- Support for hibernation APM events from Bin Shi.
- Hibernation fix to avoid bringing up nonboot CPUs with ACPI EC
disabled during thaw transitions from Bjørn Mork.
- PM core fixes and cleanups from Ben Dooks, Leonardo Potenza, Ulf
Hansson.
- PNP subsystem fixes and cleanups from Dmitry Torokhov, Levente
Kurusa, Rashika Kheria.
- New tool for profiling system suspend from Todd E Brandt and a
cpupower tool cleanup from One Thousand Gnomes"
* tag 'pm+acpi-3.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (153 commits)
thermal: exynos: boost: Automatic enable/disable of BOOST feature (at Exynos4412)
cpufreq: exynos4x12: Change L0 driver data to CPUFREQ_BOOST_FREQ
Documentation: cpufreq / boost: Update BOOST documentation
cpufreq: exynos: Extend Exynos cpufreq driver to support boost
cpufreq / boost: Kconfig: Support for software-managed BOOST
acpi-cpufreq: Adjust the code to use the common boost attribute
cpufreq: Add boost frequency support in core
intel_pstate: Add trace point to report internal state.
cpufreq: introduce cpufreq_generic_get() routine
ARM: SA1100: Create dummy clk_get_rate() to avoid build failures
cpufreq: stats: create sysfs entries when cpufreq_stats is a module
cpufreq: stats: free table and remove sysfs entry in a single routine
cpufreq: stats: remove hotplug notifiers
cpufreq: stats: handle cpufreq_unregister_driver() and suspend/resume properly
cpufreq: speedstep: remove unused speedstep_get_state
platform: introduce OF style 'modalias' support for platform bus
PM / tools: new tool for suspend/resume performance optimization
ACPI: fix module autoloading for ACPI enumerated devices
ACPI: add module autoloading support for ACPI enumerated devices
ACPI: fix create_modalias() return value handling
...
Pull libata updates from Tejun Heo:
"Support for some new embedded controllers.
A couple late (<= a week) fixes have stable cc'd and one patch ("SATA:
MV: Add support for the optional PHYs") got committed yesterday
because otherwise the resulting kernel would fail boot on an embedded
board due to interdependent changes in its platform tree.
Other than that, nothing too noteworthy"
* 'for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
SATA: MV: Add support for the optional PHYs
sata-highbank: Remove unnecessary ahci_platform.h include
libata: disable LPM for some WD SATA-I devices
ARM: mvebu: update the SATA compatible string for Armada 370/XP
ata: sata_mv: fix disk hotplug for Armada 370/XP SoCs
ata: sata_mv: introduce compatible string "marvell, armada-370-sata"
ata: pata_samsung_cf: Remove unused macros
ata: pata_samsung_cf: Use devm_ioremap_resource()
ata: pata_samsung_cf: Merge pata_samsung_cf.h into pata_samsung_cf.c
ata: pata_samsung_cf: Move plat/regs-ata.h to drivers/ata
drivers: ata: Mark the function as static in libahci.c
drivers: ata: Mark the function ahci_init_interrupts() as static in ahci.c
ahci: imx: fix the error handling in imx_ahci_probe()
ahci: imx: ahci_imx_softreset() can be static
ahci: imx: Add i.MX53 support
ahci: imx: Pull out the clock enable/disable calls
libata, dt: Document sata_rcar bindings
sata_rcar: Add R-Car Gen2 SATA PHY support
ahci: mcp89: enter AHCI mode under Apple BIOS emulation
ata: libata-eh: Remove unnecessary snprintf arithmetic
Some Marvell SoCs have a SATA PHY which can be powered off, in order
to save power. Make use of the generic phy framework to control these
phys.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tejun Heo <tj@kernel.org>
The sata-highbank driver is a complete standalone sata driver, which does
not use ahci_platform.c / ahci_platform_data in any way.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
For some reason, some early WD drives spin up and down drives
erratically when the link is put into slumber mode which can reduce
the life expectancy of the device significantly. Unfortunately, we
don't have full list of devices and given the nature of the issue it'd
be better to err on the side of false positives than the other way
around. Let's disable LPM on all WD devices which match one of the
known problematic model prefixes and are SATA-I.
As horkage list doesn't support matching SATA capabilities, this is
implemented as two horkages - WD_BROKEN_LPM and NOLPM. The former is
set for the known prefixes and sets the latter if the matched device
is SATA-I.
Note that this isn't optimal as this disables all LPM operations and
partial link power state reportedly works fine on these; however, the
way LPM is implemented in libata makes it difficult to precisely map
libata LPM setting to specific link power state. Well, these devices
are already fairly outdated. Let's just disable whole LPM for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Nikos Barkas <levelwol@gmail.com>
Reported-and-tested-by: Ioannis Barkas <risc4all@yahoo.com>
References: https://bugzilla.kernel.org/show_bug.cgi?id=57211
Cc: stable@vger.kernel.org
A scheduled horkage patch will conflict with HORKAGE changes in
for-3.13-fixes. Pull in to avoid unnecessary merge conflicts.
Signed-off-by: Tejun Heo <tj@kernel.org>
On Armada 370/XP SoCs, once a disk is removed from a SATA port, then the
re-plug events are not detected by the sata_mv driver. This patch fixes
the issue by updating the PHY speed in the LP_PHY_CTL register (0x58)
according to the SControl speed.
Note that this fix is only applied if the compatible string
"marvell,armada-370-sata" is found in the SATA DT node.
Fixes: 9ae6f740b4 ("arm: mach-mvebu: add support for Armada 370 and Armada XP with DT")
Signed-off-by: Lior Amsalem <alior@marvell.com>
Signed-off-by: Nadav Haklai <nadavh@marvell.com>
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: stable@vger.kernel.org # v3.6+
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
The sata_mv driver supports the SATA IP found in several Marvell SoCs.
As some new SATA registers have been introduced with the Armada 370/XP
SoCs, a way to identify them is needed.
This patch introduces a new compatible string for the SATA IP found in
Armada 370/XP SoCs.
Signed-off-by: Simon Guinot <simon.guinot@sequanux.org>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Andrew Lunn <andrew@lunn.ch>
Cc: Gregory Clement <gregory.clement@free-electrons.com>
Cc: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Lior Amsalem <alior@marvell.com>
Cc: stable@vger.kernel.org # v3.6+
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Tejun Heo <tj@kernel.org>
* acpi-cleanup: (22 commits)
ACPI / tables: Return proper error codes from acpi_table_parse() and fix comment.
ACPI / tables: Check if id is NULL in acpi_table_parse()
ACPI / proc: Include appropriate header file in proc.c
ACPI / EC: Remove unused functions and add prototype declaration in internal.h
ACPI / dock: Include appropriate header file in dock.c
ACPI / PCI: Include appropriate header file in pci_link.c
ACPI / PCI: Include appropriate header file in pci_slot.c
ACPI / EC: Mark the function acpi_ec_add_debugfs() as static in ec_sys.c
ACPI / NVS: Include appropriate header file in nvs.c
ACPI / OSL: Mark the function acpi_table_checksum() as static
ACPI / processor: initialize a variable to silence compiler warning
ACPI / processor: use ACPI_COMPANION() to get ACPI device
ACPI: correct minor typos
ACPI / sleep: Drop redundant acpi_disabled check
ACPI / dock: Drop redundant acpi_disabled check
ACPI / table: Replace '1' with specific error return values
ACPI: remove trailing whitespace
ACPI / IBFT: Fix incorrect <acpi/acpi.h> inclusion in iSCSI boot firmware module
ACPI / i915: Fix incorrect <acpi/acpi.h> inclusions via <linux/acpi_io.h>
SFI / ACPI: Fix warnings reported during builds with W=1
...
Conflicts:
drivers/acpi/nvs.c
drivers/hwmon/asus_atk0110.c
Pull libata fixes from Tejun Heo:
"Late fixes for libata. Nothing too interesting. Adding missing PM
callbacks to satat_sis and an additional PCI ID for ahci"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
sata_sis: missing PM support
ahci: add PCI ID for Marvell 88SE9170 SATA controller
The new pci_msi_vec_count() interface makes pci_enable_msi_block_auto()
superfluous.
Drivers can use pci_msi_vec_count() to learn the maximum number of MSIs
supported by the device, and then call pci_enable_msi_block().
pci_enable_msi_block_auto() was introduced recently, and its only user is
the AHCI driver, which is also updated by this change.
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Use devm_ioremap_resource() in order to make the code simpler,
and remove redundant return value check of platform_get_resource()
because the value is checked by devm_ioremap_resource().
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Since pata_samsung_cf.h is referenced only by pata_samsung_cf.c, merge
it into the .c file.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
sata_sis has no suspend/resume methods. The default ones will do fine and
are needed on some systems.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch adds support for the PCI ID provided by the Marvell 88SE9170
SATA controller.
Signed-off-by: Simon Guinot <sguinot@lacie.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
plat/regs-ata.h is used only by Samsung PATA driver.
Move this file to the drivers folder to remove platform
dependency required for multiplatform support.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata fixes from Tejun Heo:
"There's one interseting commit - "libata, freezer: avoid block device
removal while system is frozen". It's an ugly hack working around a
deadlock condition between driver core resume and block layer device
removal paths through freezer which was made more reproducible by
writeback being converted to workqueue some releases ago. The bug has
nothing to do with libata but it's just an workaround which is easy to
backport. After discussion, Rafael and I seem to agree that we don't
really need kernel freezables - both kthread and workqueue. There are
few specific workqueues which constitute PM operations and require
freezing, which will be converted to use workqueue_set_max_active()
instead. All other kernel freezer uses are planned to be removed,
followed by the removal of kthread and workqueue freezer support,
hopefully.
Others are device-specific fixes. The most notable is the addition of
NO_NCQ_TRIM which is used to disable queued TRIM commands to Micro
M500 SSDs which otherwise suffers data corruption"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata, freezer: avoid block device removal while system is frozen
libata: implement ATA_HORKAGE_NO_NCQ_TRIM and apply it to Micro M500 SSDs
libata: disable a disk via libata.force params
ahci: bail out on ICH6 before using AHCI BAR
ahci: imx: Explicitly clear IMX6Q_GPR13_SATA_MPLL_CLK_EN
libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for Seagate Momentus SpinPoint M8
Freezable kthreads and workqueues are fundamentally problematic in
that they effectively introduce a big kernel lock widely used in the
kernel and have already been the culprit of several deadlock
scenarios. This is the latest occurrence.
During resume, libata rescans all the ports and revalidates all
pre-existing devices. If it determines that a device has gone
missing, the device is removed from the system which involves
invalidating block device and flushing bdi while holding driver core
layer locks. Unfortunately, this can race with the rest of device
resume. Because freezable kthreads and workqueues are thawed after
device resume is complete and block device removal depends on
freezable workqueues and kthreads (e.g. bdi_wq, jbd2) to make
progress, this can lead to deadlock - block device removal can't
proceed because kthreads are frozen and kthreads can't be thawed
because device resume is blocked behind block device removal.
839a8e8660 ("writeback: replace custom worker pool implementation
with unbound workqueue") made this particular deadlock scenario more
visible but the underlying problem has always been there - the
original forker task and jbd2 are freezable too. In fact, this is
highly likely just one of many possible deadlock scenarios given that
freezer behaves as a big kernel lock and we don't have any debug
mechanism around it.
I believe the right thing to do is getting rid of freezable kthreads
and workqueues. This is something fundamentally broken. For now,
implement a funny workaround in libata - just avoid doing block device
hot[un]plug while the system is frozen. Kernel engineering at its
finest. :(
v2: Add EXPORT_SYMBOL_GPL(pm_freezing) for cases where libata is built
as a module.
v3: Comment updated and polling interval changed to 10ms as suggested
by Rafael.
v4: Add #ifdef CONFIG_FREEZER around the hack as pm_freezing is not
defined when FREEZER is not configured thus breaking build.
Reported by kbuild test robot.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Tomaž Šolc <tomaz.solc@tablix.org>
Reviewed-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=62801
Link: http://lkml.kernel.org/r/20131213174932.GA27070@htj.dyndns.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Len Brown <len.brown@intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: stable@vger.kernel.org
Cc: kbuild test robot <fengguang.wu@intel.com>
Certain drives cannot handle queued TRIM commands properly, even
though support is indicated in the IDENTIFY DEVICE buffer. This patch
allows for disabling the commands for the affected drives and apply it
to the Micron/Crucial M500 SSDs which exhibit incorrect protocol
behavior when issued queued TRIM commands, which could lead to silent
data corruption.
tj: Merged two unnecessarily split patches and made minor edits
including shortening horkage name.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Link: http://lkml.kernel.org/g/1387246554-7311-1-git-send-email-marc.ceeeee@gmail.com
Cc: stable@vger.kernel.org # 3.12+
The check for "combined mode" (which disables ahci support) on ICH6 is
done after the first use of AHCI BAR. But if ahci is not enabled AHCI
BAR is initialized to 0x00000000. (At least it is on the ICH6-M I tested
this on. If I understand the datasheet correctly it should also be on
ICH6R.) This apparently makes the call of
pcim_iomap_regions_request_all() return -EINVAL. And we end up with
ahci: probe of 0000:00:1f.2 failed with error -22
(at warning level) in the logs.
So check for "combined mode" before calling
pcim_iomap_regions_request_all().
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch marks the function ahci_port_intr() and
ahci_hw_port_interrupt() as static in libahci.c because they are not
used outside this file.
Thus, it also eliminates the following warnings in libahci.c:
drivers/ata/libahci.c:1767:6: warning: no previous prototype for ‘ahci_port_intr’ [-Wmissing-prototypes]
drivers/ata/libahci.c:1800:6: warning: no previous prototype for ‘ahci_hw_port_interrupt’ [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
This patch marks the function ahci_init_interrupts() as static in ahci.c
because it is not used outside this file.
Thus, it also eliminates the following warning in ahci.c:
drivers/ata/ahci.c:1099:5: warning: no previous prototype for ‘ahci_init_interrupts’ [-Wmissing-prototypes]
Signed-off-by: Rashika Kheria <rashika.kheria@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>
Modify acpi_preset_companion() to take a struct acpi_device pointer
instead of an ACPI handle as its second argument and redefine it as
a static inline wrapper around ACPI_COMPANION_SET() passing the
return value of acpi_find_child_device() directly as the second
argument to it. Update its users to pass struct acpi_device
pointers instead of ACPI handles to it.
This allows some unnecessary acpi_bus_get_device() calls to be
avoided.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Aaron Lu <aaron.lu@intel.com> # for ATA binding
Replace direct inclusions of <acpi/acpi.h>, <acpi/acpi_bus.h> and
<acpi/acpi_drivers.h>, which are incorrect, with <linux/acpi.h>
inclusions and remove some inclusions of those files that aren't
necessary.
First of all, <acpi/acpi.h>, <acpi/acpi_bus.h> and <acpi/acpi_drivers.h>
should not be included directly from any files that are built for
CONFIG_ACPI unset, because that generally leads to build warnings about
undefined symbols in !CONFIG_ACPI builds. For CONFIG_ACPI set,
<linux/acpi.h> includes those files and for CONFIG_ACPI unset it
provides stub ACPI symbols to be used in that case.
Second, there are ordering dependencies between those files that always
have to be met. Namely, it is required that <acpi/acpi_bus.h> be included
prior to <acpi/acpi_drivers.h> so that the acpi_pci_root declarations the
latter depends on are always there. And <acpi/acpi.h> which provides
basic ACPICA type declarations should always be included prior to any other
ACPI headers in CONFIG_ACPI builds. That also is taken care of including
<linux/acpi.h> as appropriate.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> (drivers/pci stuff)
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> (Xen stuff)
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This is a set of nine fixes (and one author update). The libsas one should fix
discovery in eSATA devices, the WRITE_SAME one is the largest, but it should
fix a lot of problems we've been getting with the emulated RAID devices
(they've been effectively lying about support and then firmware has been
choking on the commands). The rest are various crash, hang or warn driver
fixes.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of nine fixes (and one author update).
The libsas one should fix discovery in eSATA devices, the WRITE_SAME
one is the largest, but it should fix a lot of problems we've been
getting with the emulated RAID devices (they've been effectively lying
about support and then firmware has been choking on the commands).
The rest are various crash, hang or warn driver fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] bfa: Fix crash when symb name set for offline vport
[SCSI] enclosure: fix WARN_ON in dual path device removing
[SCSI] pm80xx: Tasklets synchronization fix.
[SCSI] pm80xx: Resetting the phy state.
[SCSI] pm80xx: Fix for direct attached device.
[SCSI] pm80xx: Module author addition
[SCSI] hpsa: return 0 from driver probe function on success, not 1
[SCSI] hpsa: do not discard scsi status on aborted commands
[SCSI] Disable WRITE SAME for RAID and virtual host adapter drivers
[SCSI] libsas: fix usage of ata_tf_to_fis
Add minor adjustments to support i.MX53 SATA port as well as i.MX6Q one.
The difference here is mostly the clock which need to be enabled and also
the lack of need of programming IOMUXC registers on i.MX53. All of which
is well handles in the clock enable/disable functions. Note that this patch
also cleans up the names of the common functions, so they don't read imx6q_*
but imx_* instead.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Linux-IDE <linux-ide@vger.kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
The same code for enabling and disabling SATA clock was found in multiple
places in the driver. Implement functions that enable/disable the SATA clock
and use them in such places instead of duplicating the code.
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Linux-IDE <linux-ide@vger.kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
We must clear this IMX6Q_GPR13_SATA_MPLL_CLK_EN bit on i.MX6Q, otherwise
Linux will fail to find the attached drive on some boards.
This entire fix was:
Reported-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Marek Vasut <marex@denx.de>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Linux-IDE <linux-ide@vger.kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
We've received multiple reports in Fedora via (BZ 907193)
that the Seagate Momentus SpinPoint M8 errors out when enabling AA:
[ 2.555905] ata2.00: failed to enable AA (error_mask=0x1)
[ 2.568482] ata2.00: failed to enable AA (error_mask=0x1)
Add the ATA_HORKAGE_BROKEN_FPDMA_AA for this specific harddisk.
Reported-by: Nicholas <arealityfarbetween@googlemail.com>
Signed-off-by: Michele Baldessari <michele@acksyn.org>
Tested-by: Nicholas <arealityfarbetween@googlemail.com>
Acked-by: Alan Cox <gnomes@lxorguk.ukuu.org.uk>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
R-Car Gen2 SoCs have a different PHY which is not compatible
with the older R-Car H1 (R8A7779) version.
This adds OF/platform device id tables and PHY initialization
callbacks for the following Gen2 SoCs:
* R-Car H2: R8A7790;
* R-Car M2: R8A7791.
PHY initialization method is chosen based on the device id.
Default PHY settings are applied for Gen2 SoCs, which should
suit the Gen2 boards available.
While at it, this also adds "sata-r8a7779" compatibility string
for R8A7779 SATA, while keeping the old one for compatibility.
Signed-off-by: Valentine Barshak <valentine.barshak@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some host adapters do not pass commands through to the target disk
directly. Instead they provide an emulated target which may or may not
accurately report its capabilities. In some cases the physical device
characteristics are reported even when the host adapter is processing
commands on the device's behalf. This can lead to adapter firmware hangs
or excessive I/O errors.
This patch disables WRITE SAME for devices connected to host adapters
that provide an emulated target. Driver writers can disable WRITE SAME
by setting the no_write_same flag in the host adapter template.
[jejb: fix up rejections due to eh_deadline patch]
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Cc: stable@kernel.org
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
After commit bcdde7e221 (sysfs: make __sysfs_remove_dir() recursive)
Mika Westerberg sees traces analogous to the one below in Thunderbolt
hot-remove testing:
WARNING: CPU: 0 PID: 4 at fs/sysfs/group.c:214 sysfs_remove_group+0xc6/0xd0()
sysfs group ffffffff81c6f1e0 not found for kobject 'host7'
Modules linked in:
CPU: 0 PID: 4 Comm: kworker/0:0 Not tainted 3.12.0+ #13
Hardware name: /D33217CK, BIOS GKPPT10H.86A.0042.2013.0422.1439 04/22/2013
Workqueue: kacpi_hotplug acpi_hotplug_work_fn
0000000000000009 ffff8801002459b0 ffffffff817daab1 ffff8801002459f8
ffff8801002459e8 ffffffff810436b8 0000000000000000 ffffffff81c6f1e0
ffff88006d440358 ffff88006d440188 ffff88006e8b4c28 ffff880100245a48
Call Trace:
[<ffffffff817daab1>] dump_stack+0x45/0x56
[<ffffffff810436b8>] warn_slowpath_common+0x78/0xa0
[<ffffffff81043727>] warn_slowpath_fmt+0x47/0x50
[<ffffffff811ad319>] ? sysfs_get_dirent_ns+0x49/0x70
[<ffffffff811ae526>] sysfs_remove_group+0xc6/0xd0
[<ffffffff81432f7e>] dpm_sysfs_remove+0x3e/0x50
[<ffffffff8142a0d0>] device_del+0x40/0x1b0
[<ffffffff8142a24d>] device_unregister+0xd/0x20
[<ffffffff8144131a>] scsi_remove_host+0xba/0x110
[<ffffffff8145f526>] ata_host_detach+0xc6/0x100
[<ffffffff8145f578>] ata_pci_remove_one+0x18/0x20
[<ffffffff812e8f48>] pci_device_remove+0x28/0x60
[<ffffffff8142d854>] __device_release_driver+0x64/0xd0
[<ffffffff8142d8de>] device_release_driver+0x1e/0x30
[<ffffffff8142d257>] bus_remove_device+0xf7/0x140
[<ffffffff8142a1b1>] device_del+0x121/0x1b0
[<ffffffff812e43d4>] pci_stop_bus_device+0x94/0xa0
[<ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
[<ffffffff812e437b>] pci_stop_bus_device+0x3b/0xa0
[<ffffffff812e44dd>] pci_stop_and_remove_bus_device+0xd/0x20
[<ffffffff812fc743>] trim_stale_devices+0x73/0xe0
[<ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
[<ffffffff812fc78b>] trim_stale_devices+0xbb/0xe0
[<ffffffff812fcb6e>] acpiphp_check_bridge+0x7e/0xd0
[<ffffffff812fd90d>] hotplug_event+0xcd/0x160
[<ffffffff812fd9c5>] hotplug_event_work+0x25/0x60
[<ffffffff81316749>] acpi_hotplug_work_fn+0x17/0x22
[<ffffffff8105cf3a>] process_one_work+0x17a/0x430
[<ffffffff8105db29>] worker_thread+0x119/0x390
[<ffffffff8105da10>] ? manage_workers.isra.25+0x2a0/0x2a0
[<ffffffff81063a5d>] kthread+0xcd/0xf0
[<ffffffff81063990>] ? kthread_create_on_node+0x180/0x180
[<ffffffff817eb33c>] ret_from_fork+0x7c/0xb0
[<ffffffff81063990>] ? kthread_create_on_node+0x180/0x180
The source of this problem is that SCSI hosts are removed from
ATA ports after calling ata_tport_delete() which removes the
port's sysfs directory, among other things. Now, after commit
bcdde7e221, the sysfs directory is removed along with all of
its subdirectories that include the SCSI host's sysfs directory
and its subdirectories at this point. Consequently, when
device_del() is finally called for any child device of the SCSI
host and tries to remove its "power" group (which is already
gone then), it triggers the above warning.
To make the warnings go away, change the removal ordering in
ata_port_detach() so that the SCSI host is removed from the
port before ata_tport_delete() is called.
References: https://bugzilla.kernel.org/show_bug.cgi?id=65281
Reported-and-tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Since acpi_bus_get_device() returns plain int and not acpi_status,
ACPI_FAILURE() should not be used for checking its return value. Fix
that.
tj: Dropped unused local variable @status from odd_can_poweroff().
Reported by kbuild test bot.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Aaron Lu <aaron.lu@intel.com>
Cc: linux-ide@vger.kernel.org
Cc: kbuild test robot <fengguang.wu@intel.com>
Apple's BIOS emulation forcibly disables MCP89 AHCI, eg. on Macbook7,1.
We can re-enable it, replacing the previous workaround of using
ata_generic.
tj: whitespace adjustments, dropped inline from is_mcp89_apple()
Signed-off-by: James Laird <jhl@mafipulation.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add the missing clk_disable_unprepare() before return from cf_init()
in the error handling case.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
The new IBM Akebono board has a PPC476GTR SoC with an AHCI compliant
SATA controller. This patch adds a compatible property for the new SoC
to the AHCI platform driver.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Remove an unnecessary arithmetic operation from a call to snprintf, because
the size parameter of snprintf includes the trailing null space.
Also, initialize the buffer on definition instead of a memset call.
Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
- ACPI-based device hotplug fixes for issues introduced recently and
a fix for an older error code path bug in the ACPI PCI host bridge
driver.
- Fix for recently broken OMAP cpufreq build from Viresh Kumar.
- Fix for a recent hibernation regression related to s2disk.
- Fix for a locking-related regression in the ACPI EC driver from
Puneet Kumar.
- System suspend error code path fix related to runtime PM and
runtime PM documentation update from Ulf Hansson.
- cpufreq's conservative governor fix from Xiaoguang Chen.
- New processor IDs for intel_idle and turbostat and removal of
an obsolete Kconfig option from Len Brown.
- New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and
ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg.
- Removal of several ACPI video DMI blacklist entries that are not
necessary any more from Aaron Lu.
- Rework of the ACPI companion representation in struct device and
code cleanup related to that change from Rafael J Wysocki,
Lan Tianyu and Jarkko Nikula.
- Fixes for assigning names to ACPI-enumerated I2C and SPI devices
from Jarkko Nikula.
/
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Merge tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI and power management updates from Rafael Wysocki:
- ACPI-based device hotplug fixes for issues introduced recently and a
fix for an older error code path bug in the ACPI PCI host bridge
driver
- Fix for recently broken OMAP cpufreq build from Viresh Kumar
- Fix for a recent hibernation regression related to s2disk
- Fix for a locking-related regression in the ACPI EC driver from
Puneet Kumar
- System suspend error code path fix related to runtime PM and runtime
PM documentation update from Ulf Hansson
- cpufreq's conservative governor fix from Xiaoguang Chen
- New processor IDs for intel_idle and turbostat and removal of an
obsolete Kconfig option from Len Brown
- New device IDs for the ACPI LPSS (Low-Power Subsystem) driver and
ACPI-based PCI hotplug (ACPIPHP) cleanup from Mika Westerberg
- Removal of several ACPI video DMI blacklist entries that are not
necessary any more from Aaron Lu
- Rework of the ACPI companion representation in struct device and code
cleanup related to that change from Rafael J Wysocki, Lan Tianyu and
Jarkko Nikula
- Fixes for assigning names to ACPI-enumerated I2C and SPI devices from
Jarkko Nikula
* tag 'pm+acpi-2-3.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (24 commits)
PCI / hotplug / ACPI: Drop unused acpiphp_debug declaration
ACPI / scan: Set flags.match_driver in acpi_bus_scan_fixed()
ACPI / PCI root: Clear driver_data before failing enumeration
ACPI / hotplug: Fix PCI host bridge hot removal
ACPI / hotplug: Fix acpi_bus_get_device() return value check
cpufreq: governor: Remove fossil comment in the cpufreq_governor_dbs()
ACPI / video: clean up DMI table for initial black screen problem
ACPI / EC: Ensure lock is acquired before accessing ec struct members
PM / Hibernate: Do not crash kernel in free_basic_memory_bitmaps()
ACPI / AC: Remove struct acpi_device pointer from struct acpi_ac
spi: Use stable dev_name for ACPI enumerated SPI slaves
i2c: Use stable dev_name for ACPI enumerated I2C slaves
ACPI: Provide acpi_dev_name accessor for struct acpi_device device name
ACPI / bind: Use (put|get)_device() on ACPI device objects too
ACPI: Eliminate the DEVICE_ACPI_HANDLE() macro
ACPI / driver core: Store an ACPI device pointer in struct acpi_dev_node
cpufreq: OMAP: Fix compilation error 'r & ret undeclared'
PM / Runtime: Fix error path for prepare
PM / Runtime: Update documentation around probe|remove|suspend
cpufreq: conservative: set requested_freq to policy max when it is over policy max
...
Pull slave-dmaengine changes from Vinod Koul:
"This brings for slave dmaengine:
- Change dma notification flag to DMA_COMPLETE from DMA_SUCCESS as
dmaengine can only transfer and not verify validaty of dma
transfers
- Bunch of fixes across drivers:
- cppi41 driver fixes from Daniel
- 8 channel freescale dma engine support and updated bindings from
Hongbo
- msx-dma fixes and cleanup by Markus
- DMAengine updates from Dan:
- Bartlomiej and Dan finalized a rework of the dma address unmap
implementation.
- In the course of testing 1/ a collection of enhancements to
dmatest fell out. Notably basic performance statistics, and
fixed / enhanced test control through new module parameters
'run', 'wait', 'noverify', and 'verbose'. Thanks to Andriy and
Linus [Walleij] for their review.
- Testing the raid related corner cases of 1/ triggered bugs in
the recently added 16-source operation support in the ioatdma
driver.
- Some minor fixes / cleanups to mv_xor and ioatdma"
* 'next' of git://git.infradead.org/users/vkoul/slave-dma: (99 commits)
dma: mv_xor: Fix mis-usage of mmio 'base' and 'high_base' registers
dma: mv_xor: Remove unneeded NULL address check
ioat: fix ioat3_irq_reinit
ioat: kill msix_single_vector support
raid6test: add new corner case for ioatdma driver
ioatdma: clean up sed pool kmem_cache
ioatdma: fix selection of 16 vs 8 source path
ioatdma: fix sed pool selection
ioatdma: Fix bug in selftest after removal of DMA_MEMSET.
dmatest: verbose mode
dmatest: convert to dmaengine_unmap_data
dmatest: add a 'wait' parameter
dmatest: add basic performance metrics
dmatest: add support for skipping verification and random data setup
dmatest: use pseudo random numbers
dmatest: support xor-only, or pq-only channels in tests
dmatest: restore ability to start test at module load and init
dmatest: cleanup redundant "dmatest: " prefixes
dmatest: replace stored results mechanism, with uniform messages
Revert "dmatest: append verify result to results"
...
Pull dmaengine changes from Dan
1/ Bartlomiej and Dan finalized a rework of the dma address unmap
implementation.
2/ In the course of testing 1/ a collection of enhancements to dmatest
fell out. Notably basic performance statistics, and fixed / enhanced
test control through new module parameters 'run', 'wait', 'noverify',
and 'verbose'. Thanks to Andriy and Linus for their review.
3/ Testing the raid related corner cases of 1/ triggered bugs in the
recently added 16-source operation support in the ioatdma driver.
4/ Some minor fixes / cleanups to mv_xor and ioatdma.
Conflicts:
drivers/dma/dmatest.c
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Use this new function to make code more comprehensible, since we are
reinitialzing the completion, not initializing.
[akpm@linux-foundation.org: linux-next resyncs]
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org> (personally at LCE13)
Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Modify struct acpi_dev_node to contain a pointer to struct acpi_device
associated with the given device object (that is, its ACPI companion
device) instead of an ACPI handle corresponding to it. Introduce two
new macros for manipulating that pointer in a CONFIG_ACPI-safe way,
ACPI_COMPANION() and ACPI_COMPANION_SET(), and rework the
ACPI_HANDLE() macro to take the above changes into account.
Drop the ACPI_HANDLE_SET() macro entirely and rework its users to
use ACPI_COMPANION_SET() instead. For some of them who used to
pass the result of acpi_get_child() directly to ACPI_HANDLE_SET()
introduce a helper routine acpi_preset_companion() doing an
equivalent thing.
The main motivation for doing this is that there are things
represented by struct acpi_device objects that don't have valid
ACPI handles (so called fixed ACPI hardware features, such as
power and sleep buttons) and we would like to create platform
device objects for them and "glue" them to their ACPI companions
in the usual way (which currently is impossible due to the
lack of valid ACPI handles). However, there are more reasons
why it may be useful.
First, struct acpi_device pointers allow of much better type checking
than void pointers which are ACPI handles, so it should be more
difficult to write buggy code using modified struct acpi_dev_node
and the new macros. Second, the change should help to reduce (over
time) the number of places in which the result of ACPI_HANDLE() is
passed to acpi_bus_get_device() in order to obtain a pointer to the
struct acpi_device associated with the given "physical" device,
because now that pointer is returned by ACPI_COMPANION() directly.
Finally, the change should make it easier to write generic code that
will build both for CONFIG_ACPI set and unset without adding explicit
compiler directives to it.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com> # on Haswell
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com> # for ATA and SDIO part
Pull DMA mask updates from Russell King:
"This series cleans up the handling of DMA masks in a lot of drivers,
fixing some bugs as we go.
Some of the more serious errors include:
- drivers which only set their coherent DMA mask if the attempt to
set the streaming mask fails.
- drivers which test for a NULL dma mask pointer, and then set the
dma mask pointer to a location in their module .data section -
which will cause problems if the module is reloaded.
To counter these, I have introduced two helper functions:
- dma_set_mask_and_coherent() takes care of setting both the
streaming and coherent masks at the same time, with the correct
error handling as specified by the API.
- dma_coerce_mask_and_coherent() which resolves the problem of
drivers forcefully setting DMA masks. This is more a marker for
future work to further clean these locations up - the code which
creates the devices really should be initialising these, but to fix
that in one go along with this change could potentially be very
disruptive.
The last thing this series does is prise away some of Linux's addition
to "DMA addresses are physical addresses and RAM always starts at
zero". We have ARM LPAE systems where all system memory is above 4GB
physical, hence having DMA masks interpreted by (eg) the block layers
as describing physical addresses in the range 0..DMAMASK fails on
these platforms. Santosh Shilimkar addresses this in this series; the
patches were copied to the appropriate people multiple times but were
ignored.
Fixing this also gets rid of some ARM weirdness in the setup of the
max*pfn variables, and brings ARM into line with every other Linux
architecture as far as those go"
* 'for-linus-dma-masks' of git://git.linaro.org/people/rmk/linux-arm: (52 commits)
ARM: 7805/1: mm: change max*pfn to include the physical offset of memory
ARM: 7797/1: mmc: Use dma_max_pfn(dev) helper for bounce_limit calculations
ARM: 7796/1: scsi: Use dma_max_pfn(dev) helper for bounce_limit calculations
ARM: 7795/1: mm: dma-mapping: Add dma_max_pfn(dev) helper function
ARM: 7794/1: block: Rename parameter dma_mask to max_addr for blk_queue_bounce_limit()
ARM: DMA-API: better handing of DMA masks for coherent allocations
ARM: 7857/1: dma: imx-sdma: setup dma mask
DMA-API: firmware/google/gsmi.c: avoid direct access to DMA masks
DMA-API: dcdbas: update DMA mask handing
DMA-API: dma: edma.c: no need to explicitly initialize DMA masks
DMA-API: usb: musb: use platform_device_register_full() to avoid directly messing with dma masks
DMA-API: crypto: remove last references to 'static struct device *dev'
DMA-API: crypto: fix ixp4xx crypto platform device support
DMA-API: others: use dma_set_coherent_mask()
DMA-API: staging: use dma_set_coherent_mask()
DMA-API: usb: use new dma_coerce_mask_and_coherent()
DMA-API: usb: use dma_set_coherent_mask()
DMA-API: parport: parport_pc.c: use dma_coerce_mask_and_coherent()
DMA-API: net: octeon: use dma_coerce_mask_and_coherent()
DMA-API: net: nxp/lpc_eth: use dma_coerce_mask_and_coherent()
...
Pull libata changes from Tejun Heo:
"Nothing too interesting. Only two minor fixes in libata core. Most
changes are specific to hardware which isn't too common"
* 'for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
ahci: Add Device IDs for Intel Wildcat Point-LP
sata_rcar: Convert to clk_prepare/unprepare
drivers/libata: Set max sector to 65535 for Slimtype DVD A DS8A9SH drive
libata: Add some missing command descriptions
sata_highbank: clear whole array in highbank_initialize_phys()
ahci: disabled FBS prior to issuing software reset
libata: Fix display of sata speed
ahci: imx: setup power saving methods
ata_piix: minor typo and a printk fix
ahci: Changing two module params with static and __read_mostly
usual for this cycle with lots of clean-up.
- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for deferred
probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates.
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Merge tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull devicetree updates from Rob Herring:
"DeviceTree updates for 3.13. This is a bit larger pull request than
usual for this cycle with lots of clean-up.
- Cross arch clean-up and consolidation of early DT scanning code.
- Clean-up and removal of arch prom.h headers. Makes arch specific
prom.h optional on all but Sparc.
- Addition of interrupts-extended property for devices connected to
multiple interrupt controllers.
- Refactoring of DT interrupt parsing code in preparation for
deferred probe of interrupts.
- ARM cpu and cpu topology bindings documentation.
- Various DT vendor binding documentation updates"
* tag 'devicetree-for-3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (82 commits)
powerpc: add missing explicit OF includes for ppc
dt/irq: add empty of_irq_count for !OF_IRQ
dt: disable self-tests for !OF_IRQ
of: irq: Fix interrupt-map entry matching
MIPS: Netlogic: replace early_init_devtree() call
of: Add Panasonic Corporation vendor prefix
of: Add Chunghwa Picture Tubes Ltd. vendor prefix
of: Add AU Optronics Corporation vendor prefix
of/irq: Fix potential buffer overflow
of/irq: Fix bug in interrupt parsing refactor.
of: set dma_mask to point to coherent_dma_mask
of: add vendor prefix for PHYTEC Messtechnik GmbH
DT: sort vendor-prefixes.txt
of: Add vendor prefix for Cadence
of: Add empty for_each_available_child_of_node() macro definition
arm/versatile: Fix versatile irq specifications.
of/irq: create interrupts-extended property
microblaze/pci: Drop PowerPC-ism from irq parsing
of/irq: Create of_irq_parse_and_map_pci() to consolidate arch code.
of/irq: Use irq_of_parse_and_map()
...
Commit b5b4bb3f6a (of: only include prom.h on sparc) removed implicit
includes of of_*.h headers by powerpc's prom.h. Some components were
missed in initial clean-up patch, so add the necessary includes to fix
powerpc builds.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Tejun Heo <tj@kernel.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-ide@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
This patch adds the AHCI-mode SATA Device IDs for the Intel Wildcat Point-LP PCH.
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
The correct way for a driver to specify the coherent DMA mask is
not to directly access the field in the struct device, but to use
dma_set_coherent_mask(). Only arch and bus code should access this
member directly.
Convert all direct write accesses to using the correct API.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Convert this code sequence:
pdev->dev.coherent_dma_mask = DMA_BIT_MASK(64);
pdev->dev.dma_mask = &pdev->dev.coherent_dma_mask;
to use dma_coerce_mask_and_coherent() to avoid bypassing the architecture
check on the DMA mask.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Turn clk_enable() and clk_disable() calls into clk_prepare_enable() and
clk_disable_unprepare() to get ready for the migration to the common
clock framework.
Cc: linux-ide@vger.kernel.org
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add some missing command enumerations from the ATA-8 ACS-3 spec into
include/linux/ata.h, and add the corresponding human-readable command
descriptions in libata-eh.c.
Signed-off-by: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The original code used the wrong parameter to clear tx_atten[]. It
passed the number of elements instead of sizeof() the array to memset.
The other potential issue was that cphy_base[] wasn't cleared. I'm not
sure if that was a real problem or not, but I have cleared it in my
patch.
Instead of using memset(), this patch uses empty initializers as a
cleanup.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Tested with Marvell 88se9125, attached with one port mulitplier(5 ports)
and one disk, we will get following boot log messages if using current
code:
ata8: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier 1.2, 0x1b4b:0x9715 r160, 5 ports, feat 0x1/0x1f
ahci 0000:03:00.0: FBS is enabled
ata8.00: hard resetting link
ata8.00: SATA link down (SStatus 0 SControl 330)
ata8.01: hard resetting link
ata8.01: SATA link down (SStatus 0 SControl 330)
ata8.02: hard resetting link
ata8.02: SATA link down (SStatus 0 SControl 330)
ata8.03: hard resetting link
ata8.03: SATA link up 6.0 Gbps (SStatus 133 SControl 133)
ata8.04: hard resetting link
ata8.04: failed to resume link (SControl 133)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.04: failed to read SCR 1 (Emask=0x40)
ata8.04: failed to read SCR 0 (Emask=0x40)
ata8.03: native sectors (2) is smaller than sectors (976773168)
ata8.03: ATA-8: ST3500413AS, JC4B, max UDMA/133
ata8.03: 976773168 sectors, multi 0: LBA48 NCQ (depth 31/32)
ata8.03: configured for UDMA/133
ata8.04: failed to IDENTIFY (I/O error, err_mask=0x100)
ata8.15: hard resetting link
ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: hard resetting link
ata8.15: SATA link up 6.0 Gbps (SStatus 133 SControl 330)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: limiting SATA link speed to 3.0 Gbps
ata8.15: hard resetting link
ata8.15: SATA link up 3.0 Gbps (SStatus 123 SControl 320)
ata8.15: Port Multiplier vendor mismatch '0x1b4b' != '0x133'
ata8.15: PMP revalidation failed (errno=-19)
ata8.15: failed to recover PMP after 5 tries, giving up
ata8.15: Port Multiplier detaching
ata8.03: disabled
ata8.00: disabled
ata8: EH complete
The reason is that current detection code doesn't follow AHCI spec:
First,the port multiplier detection process look like this:
ahci_hardreset(link, class, deadline)
if (class == ATA_DEV_PMP) {
sata_pmp_attach(dev) /* will enable FBS */
sata_pmp_init_links(ap, nr_ports);
ata_for_each_link(link, ap, EDGE) {
sata_std_hardreset(link, class, deadline);
if (link_is_online) /* do soft reset */
ahci_softreset(link, class, deadline);
}
}
But, according to chapter 9.3.9 in AHCI spec: Prior to issuing software
reset, software shall clear PxCMD.ST to '0' and then clear PxFBS.EN to
'0'.
The patch test ok with kernel 3.11.1.
tj: Patch white space contaminated, applied manually with trivial
updates.
Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
6.0 Gbps link speed was not decoded properly:
speed was reported at 3.0 Gbps only.
Tested: On a machine where libata reports 6.0 Gbps in
/var/log/messages:
ata1: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
Before:
cat /sys/class/ata_link/link1/sata_spd
3.0 Gbps
After:
cat /sys/class/ata_link/link1/sata_spd
6.0 Gbps
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Pull libata fixes from Tejun Heo:
"The only interesting bit is ata_eh_qc_retry() update which fixes a
problem where a SG_IO command may fail across suspend/resume cycle
without the command actually being at fault.
Other changes are low level driver specific and fairly low impact"
* 'for-3.12-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libahci: fix turning on LEDs in ahci_start_port()
libata: make ata_eh_qc_retry() bump scmd->allowed on bogus failures
ahci_platform: use dev_info() instead of printk()
ahci: use dev_info() instead of printk()
pata_isapnp: Don't use invalid I/O ports
Previously, we wanted SCSI devices corrsponding to ATA devices to
be runtime resumed when the power resource for those ATA device was
turned on by some other device, so we added the SCSI device to the
dependent device list of the ATA device's ACPI node. However, this
code has no effect after commit 41863fc (ACPI / power: Drop automaitc
resume of power resource dependent devices) and the mechanism it was
supposed to implement is regarded as a bad idea now, so drop it.
[rjw: Changelog]
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
If EM Transmit bit is busy during init ata_msleep() is called. It is
wrong - msleep() should be used instead of ata_msleep(), because if EM
Transmit bit is busy for one port, it will be busy for all other ports
too, so using ata_msleep() causes wasting tries for another ports.
The most common scenario looks like that now
(six ports try to transmit a LED meaasege):
- port #0 tries for the 1st time and succeeds
- ports #1-5 try for the 1st time and sleeps
- port #1 tries for the 2nd time and succeeds
- ports #2-5 try for the 2nd time and sleeps
- port #2 tries for the 3rd time and succeeds
- ports #3-5 try for the 3rd time and sleeps
- port #3 tries for the 4th time and succeeds
- ports #4-5 try for the 4th time and sleeps
- port #4 tries for the 5th time and succeeds
- port #5 tries for the 5th time and sleeps
At this moment port #5 wasted all its five tries and failed to
initialize. Because there are only 5 (EM_MAX_RETRY) tries available
usually only five ports succeed to initialize. The sixth port and next
ones usually will fail.
If msleep() is used instead of ata_msleep() the first port succeeds to
initialize in the first try and next ones usually succeed to
initialize in the second try.
tj: updated comment
Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
In order to save power consumption as much as possible.
* Disable sata phy internal pll reference clock when sysetem enter
into suspend mode, enable it after resume.
* Setup module parameter used to enable imx ahci test power down
mode(PDDQ) or not, when there is no device detected on the port
* minor modifications:
- The format of the copyright is changed, because that the original
one can't pass fsl internal patch reivew without the character
'(c)'.
- Exports ahci_platform_ops and ahci_error_handler().
NOTE:
* The hot-plug can't be supported when PDDQ mode is ever enabled.
* module parameter usage how-to:
- default: enable PDDQ mode when no device detected.
- add "ahci-imx.hotplug=1" into kernel command line if your don't
want to enable PDDQ mode when no device detected on the port.
tj: Slightly updated description and comments.
Signed-off-by: Richard Zhu <r65037@freescale.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The patch fixes a printk() being cut in half, some typos
and a change in comments to better reflect the specs.
Signed-off-by: Levente Kurusa <levex@linux.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Powerpc is a mess of implicit includes by prom.h. Add the necessary
explicit includes to drivers in preparation of prom.h cleanup.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Grant Likely <grant.likely@linaro.org>
libata EH decrements scmd->retries when the command failed for reasons
unrelated to the command itself so that, for example, commands aborted
due to suspend / resume cycle don't get penalized; however,
decrementing scmd->retries isn't enough for ATA passthrough commands.
Without this fix, ATA passthrough commands are not resend to the
drive, and no error is signalled to the caller because:
- allowed retry count is 1
- ata_eh_qc_complete fill the sense data, so result is valid
- sense data is filled with untouched ATA registers.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Change "raw" printk() call to dev_info() to provide a better
message to userspace so it can properly identify the device
and not just have to guess.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Change "raw" printk() call to dev_info() to provide a better
message to userspace so it can properly identify the device
and not just have to guess.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The test for 2nd I/O port validity is broken (reversed): On devices
with no control port, the driver attempts to use invalid port 0,
resulting in logs full of bad_io_access errors. On devices with
control port, the driver does not use it.
Signed-off-by: Ondrej Zary <linux@rainbow-software.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
My old @it.uu.se email address is going away, so update relevant
files to point to my @gmail.com address instead. In sata_promise.c
just delete the address, people can get it from MAINTAINERS.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Here module parameters ahci_em_messages and devslp_idle_timeout can
be set as static and __read_mostly.
Signed-off-by: Liu, Chuansheng <chuansheng.liu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Pull libata changes from Tejun Heo:
"Two interesting changes.
- libata acpi handling has been restructured so that the association
between ata devices and ACPI handles are less convoluted. This
change shouldn't change visible behavior.
- Queued TRIM support, which enables sending TRIM to the device
without draining in-flight RW commands, is added. Currently only
enabled for ahci (and likely to stay that way for the foreseeable
future).
Other changes are driver-specific updates / fixes"
* 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata: bugfix: Remove __le32 in ata_tf_to_fis()
libata: acpi: Remove ata_dev_acpi_handle stub in libata.h
libata: Add support for queued DSM TRIM
libata: Add support for SEND/RECEIVE FPDMA QUEUED
libata: Add H2D FIS "auxiliary" port flag
libata: Populate host-to-device FIS "auxiliary" field
ata: acpi: rework the ata acpi bind support
sata, highbank: send extra clock cycles in SGPIO patterns
sata, highbank: set tx_atten override bits
devicetree: create a separate binding description for sata_highbank
drivers/ata/sata_rcar.c: simplify use of devm_ioremap_resource
sata highbank: enable 64-bit DMA mask when using LPAE
ata: pata_samsung_cf: add missing __iomem annotation
ata: pata_arasan: Staticize local symbols
sata_mv: Remove unneeded CONFIG_HAVE_CLK ifdefs
ata: use dev_get_platdata()
sata_mv: Remove unneeded forward declaration
libata: acpi: remove dead code for ata_acpi_(un)bind
libata: move 'struct ata_taskfile' and friends from ata.h to libata.h
The endianness attribute on the 'aux' local variable is wrong, and can
lead to wrong endianness on big-endian machines,
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The ata_dev_acpi_handle is defined in libata-acpi.c and the only
external user is libata-zpodd.c, which is built when CONFIG_ATA_ACPI
is set, so there is no need to make an empty stub function for
ONFIG_ATA_ACPI case in libata.h. It also causes compile errors due to
acpi_handle is not defined when !CONFIG_ACPI. This patch fixes this
problem by removing the empty stub.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
* acpi-pm:
ACPI / PM: Add state information to error message in acpi_device_set_power()
ACPI / PM: Remove redundant power manageable check from acpi_bus_set_power()
ACPI / PM: Use ACPI_STATE_D3_COLD instead of ACPI_STATE_D3 everywhere
ACPI / PM: Make messages in acpi_device_set_power() print device names
ACPI / PM: Only set power states of devices that are power manageable
Some new SSDs support the queued version of the DSM TRIM command.
Let the driver use the new command if supported.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add support for the following ATA opcodes, which are present
in SATA 3.1 and T13 ATA ACS-3:
SEND FPDMA QUEUED
RECEIVE FPDMA QUEUED
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Add a new port flag, ATA_FLAG_FPDMA_AUX, used to indicate
support for transmission of the H2D FIS 'auxiliary' field.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
SATA 3.1 added an "auxiliary" field to the host-to-device FIS.
Populate the host-to-device FIS with the new field via the
taskfile struct.
Signed-off-by: Marc Carino <marc.ceeeee@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Binding ACPI handle to SCSI device has several drawbacks, namely:
1 During ATA device initialization time, ACPI handle will be needed
while SCSI devices are not created yet. So each time ACPI handle is
needed, instead of retrieving the handle by ACPI_HANDLE macro,
a namespace scan is performed to find the handle for the corresponding
ATA device. This is inefficient, and also expose a restriction on
calling path not holding any lock.
2 The binding to SCSI device tree makes code complex, while at the same
time doesn't bring us any benefit. All ACPI handlings are still done
in ATA module, not in SCSI.
Rework the ATA ACPI binding code to bind ACPI handle to ATA transport
devices(ATA port and ATA device). The binding needs to be done only once,
since the ATA transport devices do not go away with hotplug. And due to
this, the flush_work call in hotplug handler for ATA bay is no longer
needed.
Tested on an Intel test platform for binding and runtime power off for
ODD(ZPODD) and hard disk; on an ASUS S400C for binding and normal boot
and S3, where its SATA port node has _SDD and _GTF control methods when
configured as an AHCI controller and its PATA device node has _GTF
control method when configured as an IDE controller. SATA PMP binding
and ATA hotplug is not tested.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixing support for the Silicon Image 3826 port multiplier, by applying
to it the same quirks applied to the Silicon Image 3726. Specifically
fixes the repeated timeout/reset process which previously afflicted
the 3726, as described from line 290. Slightly based on notes from:
https://bugzilla.redhat.com/show_bug.cgi?id=890237
Signed-off-by: Terry Suereth <terry.suereth@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Some SGPIO PICs don't follow the standard very well and expect a certain
number of clock cycles or port frames in each SGPIO pattern. Add two
optional parameters in the DTB that can provide the number of extra
clock cycles to be sent before and after SGPIO pattern. Read those
parameters from the DTB and send the extra clock cycles.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Some board designs do not drive the SATA transmit lines within the
specification. The ECME can provide override settings, on a per board
basis, to bring the transmit lines within spec. Read those settings
from the DTB and program them in.
At the time of submission, no production hardware requires this patch.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Remove unneeded error handling on the result of a call to
platform_get_resource when the value is passed to devm_ioremap_resource.
Move the call to platform_get_resource adjacent to the call to
devm_ioremap_resource to make the connection between them more clear.
A simplified version of the semantic patch that makes this change is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression pdev,res,n,e,e1;
expression ret != 0;
identifier l;
@@
- res = platform_get_resource(pdev, IORESOURCE_MEM, n);
... when != res
- if (res == NULL) { ... \(goto l;\|return ret;\) }
... when != res
+ res = platform_get_resource(pdev, IORESOURCE_MEM, n);
e = devm_ioremap_resource(e1, res);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Tejun Heo <tj@kernel.org>
The ACTIVITY and ERROR signals were reversed in the original commit.
Fix that so that hard drive activity does not show up on the error
light, and attempts to indicate that the hard drive is failing do
not show up as hard drive activity. This fixes a fairly serious
functional bug in the driver, but failing to apply this patch will
not cause any stability issues on the system.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Added missing __iomem annotation and staticized local symbol
in order to fix the following sparse warnings:
drivers/ata/pata_samsung_cf.c:244:14: warning: symbol 'pata_s3c_data_xfer' was not declared. Should it be static?
drivers/ata/pata_samsung_cf.c:423:20: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:423:20: expected void const volatile [noderef] <asn:2>*addr
drivers/ata/pata_samsung_cf.c:423:20: got void *
drivers/ata/pata_samsung_cf.c:425:9: warning: incorrect type in argument 2 (different address spaces)
drivers/ata/pata_samsung_cf.c:425:9: expected void volatile [noderef] <asn:2>*addr
drivers/ata/pata_samsung_cf.c:425:9: got void *
drivers/ata/pata_samsung_cf.c:448:37: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:448:37: expected void *s3c_ide_regbase
drivers/ata/pata_samsung_cf.c:448:37: got void [noderef] <asn:2>*ide_addr
drivers/ata/pata_samsung_cf.c:463:37: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_samsung_cf.c:463:37: expected void *s3c_ide_regbase
drivers/ata/pata_samsung_cf.c:463:37: got void [noderef] <asn:2>*ide_addr
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
These local symbols are used only in this file.
Fix the following sparse warnings:
drivers/ata/pata_arasan_cf.c:657:6: warning: symbol 'arasan_cf_error_handler' was not declared. Should it be static?
drivers/ata/pata_arasan_cf.c:686:14: warning: symbol 'arasan_cf_qc_issue' was not declared. Should it be static?
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
If CONFIG_HAVE_CLK is not selected, then all the clk API turn out
into no-ops. In other words, there's no need to have the ifdefs.
The only side-effect of this patch is the extra tiny kmalloc,
but that's not enough reason to have such ugly ifdefs all around
the code.
tj: Slightly massaged comment as per Andrew Lunn.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Tejun Heo <tj@kernel.org>
Use the wrapper function for retrieving the platform data instead of
accessing dev->platform_data directly.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There are several places in the tree where ACPI_STATE_D3 is used
instead of ACPI_STATE_D3_COLD which should be used instead for
clarity. Modify them all to use ACPI_STATE_D3_COLD as appropriate.
[The definition of ACPI_STATE_D3 itself cannot go away at this point
as it is part of ACPICA.]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Aaron Lu <aaron.lu@intel.com>
Enable auto loading by udev when pata_imx is compiled as a module.
Signed-off-by: Niels de Vos <ndevos@redhat.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Tejun Heo <tj@kernel.org>
These forward declarations are no longer needed, and are probably
historical left-over.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
ahci_imx makes use of regmap but the dependency wasn't specified in
Kconfig leading build failures if CONFIG_AHCI_IMX is enabled but
CONFIG_MFD_SYSCON is not. Add the Kconfig dependency.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Commit 7381fe737 "libata-acpi: remove redundent code for power resource
handling" removed ata_acpi_(un)bind but left their prototypes in libata.h,
so remove them.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
imx6q contains one Synopsys AHCI SATA controller, But it can't share
ahci_platform driver with other controllers because there are some
misalignments of the generic AHCI controller - the bits definitions of
the HBA registers, the Vendor Specific registers, the AHCI PHY clock
and the AHCI signals adjustment window(GPR13 register).
- CAP_SSS(bit20) of the HOST_CAP is writable, default value is '0',
should be configured to be '1'
- bit0 (only one AHCI SATA port on imx6q) of the HOST_PORTS_IMPL
should be set to be '1'.(default 0)
- One Vendor Specific register HOST_TIMER1MS(offset:0xe0) should be
configured regarding to the frequency of AHB bus clock.
- Configurations of the AHCI PHY clock, and the signal parameters of
the GPR13
Setup its own ahci sata driver, contained the imx6q specific
initialized codes, re-use the generic ahci_platform driver, and keep
the generic ahci_platform driver clean as much as possible.
tj: patch description reformatted
Signed-off-by: Richard Zhu <r65037@freescale.com>
Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
commit b29900e6 (AHCI: Make distinct names for ports in /proc/interrupts)
introuded a regression, which resulted Null pointer dereference for achi
host with dummy ports. For ahci ports, when the port is dummy port, its
private_data will be NULL, as ata_dummy_port_ops doesn't support ->port_start.
changes in v2: use pp to check dummy ports, update comments
Reported-and-tested-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Xiaotian Feng <xtfeng@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alexander Gordeev <agordeev@redhat.com>
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
sata_inic162x never reached a state where it's reliable enough for
production use and data corruption is a relatively common occurrence.
Make the driver generate warning about the issues and mark the Kconfig
option as experimental.
If the situation doesn't improve, we'd be better off making it depend
on CONFIG_BROKEN. Let's wait for several cycles and see if the kernel
message draws any attention.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Martin Braure de Calignon <braurede@free.fr>
Reported-by: Ben Hutchings <ben@decadent.org.uk>
Reported-by: risc4all@yahoo.com
The usage of strict_strtol() is not preferred, because
strict_strtol() is obsolete. Thus, kstrtol() should be
used.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
There is a patch b55f84e2d5 "ata_piix: Fix DVD
not dectected at some Haswell platforms" to fix an issue of DVD not
recognized on Haswell Desktop platform with Lynx Point.
Recently, it is also found the same issue at some platformas with Wellsburg PCH.
So deliver a similar patch to fix it by disables 32bit PIO in IDE mode.
Signed-off-by: Youquan Song <youquan.song@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Pull MIPS updates from Ralf Baechle:
"MIPS updates:
- All the things that didn't make 3.10.
- Removes the Windriver PPMC platform. Nobody will miss it.
- Remove a workaround from kernel/irq/irqdomain.c which was there
exclusivly for MIPS. Patch by Grant Likely.
- More small improvments for the SEAD 3 platform
- Improvments on the BMIPS / SMP support for the BCM63xx series.
- Various cleanups of dead leftovers.
- Platform support for the Cavium Octeon-based EdgeRouter Lite.
Two large KVM patchsets didn't make it for this pull request because
their respective authors are vacationing"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (124 commits)
MIPS: Kconfig: Add missing MODULES dependency to VPE_LOADER
MIPS: BCM63xx: CLK: Add dummy clk_{set,round}_rate() functions
MIPS: SEAD3: Disable L2 cache on SEAD-3.
MIPS: BCM63xx: Enable second core SMP on BCM6328 if available
MIPS: BCM63xx: Add SMP support to prom.c
MIPS: define write{b,w,l,q}_relaxed
MIPS: Expose missing pci_io{map,unmap} declarations
MIPS: Malta: Update GCMP detection.
Revert "MIPS: make CAC_ADDR and UNCAC_ADDR account for PHYS_OFFSET"
MIPS: APSP: Remove <asm/kspd.h>
SSB: Kconfig: Amend SSB_EMBEDDED dependencies
MIPS: microMIPS: Fix improper definition of ISA exception bit.
MIPS: Don't try to decode microMIPS branch instructions where they cannot exist.
MIPS: Declare emulate_load_store_microMIPS as a static function.
MIPS: Fix typos and cleanup comment
MIPS: Cleanup indentation and whitespace
MIPS: BMIPS: support booting from physical CPU other than 0
MIPS: Only set cpu_has_mmips if SYS_SUPPORTS_MICROMIPS
MIPS: GIC: Fix gic_set_affinity infinite loop
MIPS: Don't save/restore OCTEON wide multiplier state on syscalls.
...
Pull libata updates from Tejun Heo:
"Overview of changes:
- The rest of maintainer email address updates.
- Some core updates - more robust default behavior for port
multipliers, better error reporting for SG_IO commands, and a way
to better work around now ancient and probably pretty rare PATA ->
SATA bridges with ATAPI devices.
- sata_rcar stabilization.
- Some hardware PCI ID additions and one-off low level driver
updates."
* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits)
AHCI: use ATA_BUSY
libata-zpodd: must use ata_tf_init()
ahci: AHCI-mode SATA patch for Intel Coleto Creek DeviceIDs
ata_piix: IDE-mode SATA patch for Intel Coleto Creek DeviceIDs
libata: cleanup SAT error translation
ahci: sata: add support for exynos5440 sata
libata: skip SRST for all SIMG [34]7x port-multipliers
ahci: remove pmp link online check in FBS EH
sata highbank: add bit-banged SGPIO driver support
ahci: make ahci_transmit_led_message into a function pointer
sata_rcar: fix compilation warning in sata_rcar_thaw()
sata_highbank: increase retry count but shorten duration for Calxeda controller
ata: use pci_get_drvdata()
ipr: qc_fill_rtf() method should not store alternate status register
sata_rcar: add 'base' local variable to some functions
sata_rcar: correct 'sata_rcar_sht'
sata_rcar: kill superfluous code in sata_rcar_bmdma_fill_sg()
libata: do not limit R-Car SATA driver to shmobile
ata: use platform_{get,set}_drvdata()
AHCI: Make distinct names for ports in /proc/interrupts
...
PCI device hotplug
- Add pci_alloc_dev() interface (Gu Zheng)
- Add pci_bus_get()/put() for reference counting (Jiang Liu)
- Fix SR-IOV reference count issues (Jiang Liu)
- Remove unused acpi_pci_roots list (Jiang Liu)
MSI
- Conserve interrupt resources on x86 (Alexander Gordeev)
AER
- Force fatal severity when component has been reset (Betty Dall)
- Reset link below Root Port as well as Downstream Port (Betty Dall)
- Fix "Firmware first" flag setting (Bjorn Helgaas)
- Don't parse HEST for non-PCIe devices (Bjorn Helgaas)
ASPM
- Warn when we can't disable ASPM as driver requests (Bjorn Helgaas)
Miscellaneous
- Add CircuitCo PCI IDs (Darren Hart)
- Add AMD CZ SATA and SMBus PCI IDs (Shane Huang)
- Work around Ivytown NTB BAR size issue (Jon Mason)
- Detect invalid initial BAR values (Kevin Hao)
- Add pcibios_release_device() (Sebastian Ott)
- Fix powerpc & sparc PCI_UNKNOWN power state usage (Bjorn Helgaas)
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Merge tag 'pci-v3.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Pull PCI changes from Bjorn Helgaas:
"PCI device hotplug
- Add pci_alloc_dev() interface (Gu Zheng)
- Add pci_bus_get()/put() for reference counting (Jiang Liu)
- Fix SR-IOV reference count issues (Jiang Liu)
- Remove unused acpi_pci_roots list (Jiang Liu)
MSI
- Conserve interrupt resources on x86 (Alexander Gordeev)
AER
- Force fatal severity when component has been reset (Betty Dall)
- Reset link below Root Port as well as Downstream Port (Betty Dall)
- Fix "Firmware first" flag setting (Bjorn Helgaas)
- Don't parse HEST for non-PCIe devices (Bjorn Helgaas)
ASPM
- Warn when we can't disable ASPM as driver requests (Bjorn Helgaas)
Miscellaneous
- Add CircuitCo PCI IDs (Darren Hart)
- Add AMD CZ SATA and SMBus PCI IDs (Shane Huang)
- Work around Ivytown NTB BAR size issue (Jon Mason)
- Detect invalid initial BAR values (Kevin Hao)
- Add pcibios_release_device() (Sebastian Ott)
- Fix powerpc & sparc PCI_UNKNOWN power state usage (Bjorn Helgaas)"
* tag 'pci-v3.11-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (51 commits)
MAINTAINERS: Add ACPI folks for ACPI-related things under drivers/pci
PCI: Add CircuitCo vendor ID and subsystem ID
PCI: Use pdev->pm_cap instead of pci_find_capability(..,PCI_CAP_ID_PM)
PCI: Return early on allocation failures to unindent mainline code
PCI: Simplify IOV implementation and fix reference count races
PCI: Drop redundant setting of bus->is_added in virtfn_add_bus()
unicore32/PCI: Remove redundant call of pci_bus_add_devices()
m68k/PCI: Remove redundant call of pci_bus_add_devices()
PCI / ACPI / PM: Use correct power state strings in messages
PCI: Fix comment typo for pcie_pme_remove()
PCI: Rename pci_release_bus_bridge_dev() to pci_release_host_bridge_dev()
PCI: Fix refcount issue in pci_create_root_bus() error recovery path
ia64/PCI: Clean up pci_scan_root_bus() usage
PCI/AER: Reset link for devices below Root Port or Downstream Port
ACPI / APEI: Force fatal AER severity when component has been reset
PCI/AER: Remove "extern" from function declarations
PCI/AER: Move AER severity defines to aer.h
PCI/AER: Set dev->__aer_firmware_first only for matching devices
PCI/AER: Factor out HEST device type matching
PCI/AER: Don't parse HEST table for non-PCIe devices
...
libata/for-3.10-fixes never got submitted during v3.10 cycle. Merge
it into for-3.11 so that it can be routed together with other changes
scheduled for v3.11.
Three trivial conflicts in drivers/ata/sata_rcar.c. All are caused by
1b20f6a9ad ("sata_rcar: add 'base' local variable to some functions")
conflicting with logic updates in for-3.10-fixes. The offending
commit simply adds local variable @base on functions which
dereferences sata_rcar_priv->base multiple times. The resolutions are
trivial - applying s/priv->base/base/ in the conflicting logic
updates.
Signed-off-by: Tejun Heo <tj@kernel.org>
ahci_hardreset() and ahci_p5wdh_hardreset() use bare numbers for the
BSY bit of the ATA status register, despite it's #define'd in
<linux/ata.h>.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Commit 30dcf76acc "libata: migrate ACPI code over to new bindings"
mistakenly dropped the code to register hotplug notificaion handler
for ATA port/devices, causing regression for people using ATA bay,
as kernel bug #59871 shows.
Fix this by adding back the hotplug notification handler registration
code. Since this code has to be run once and notification needs to
be installed on every ATA port/devices handle no matter if there is
actual device attached, we can't do this in binding time for ATA
device ACPI handle, as the binding only occurs when a SCSI device is
created, i.e. there is device attached. So introduce the
ata_acpi_hotplug_init() function to loop scan all ATA ACPI handles
and if it is available, install the notificaion handler for it during
ATA init time.
With the ATA ACPI handle binding to SCSI device tree, it is possible
now that when the SCSI hotplug work removes the SCSI device, the ACPI
unbind function will find that the corresponding ACPI device has
already been deleted by dock driver, causing a scaring message like:
[ 128.263966] scsi 4:0:0:0: Oops, 'acpi_handle' corrupt
Fix this by waiting for SCSI hotplug task finish in our notificaion
handler, so that the removal of ACPI device done in ACPI unbind
function triggered by the removal of SCSI device is run earlier when
ACPI device is still available.
[rjw: Rebased]
References: https://bugzilla.kernel.org/show_bug.cgi?id=59871
Reported-bisected-and-tested-by: Dirk Griesbach <spamthis@freenet.de>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: 3.6+ <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
There are some SATA controllers which have both devices 0 and 1 but this module
just zeroes out taskfile and sets then ATA_TFLAG_DEVICE (not sure that's needed)
which could lead to a wrong device being selected just before issuing command.
Thus we should call ata_tf_init() which sets up the device register value
properly, like all other users of ata_exec_internal() do...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This patch adds the AHCI-mode SATA DeviceIDs for the Intel Coleto Creek PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
This patch adds the IDE-mode SATA DeviceIDs for the Intel Coleto Creek PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
- Remove duplicate Medium Error Entry.
- Fix translations to match SAT2 translation table.
- Remove warning messages when translation is not found when decoding
error or status register.
- Goes through status register decoding when only ABRT bit is set in
error register.
Tested: When a disk fails, it sets
Status = 0x71 [DRDY DF ERR] , Error = 0x4 [ABRT]
This patch will make the sense key HARDWARE_ERROR instead.
When there is a simple command syntax error:
Status = 0x51 [DRDY ERR] , Error = 0x4 [ABRT]
The sense key remains ABORTED_COMMAND.
tj: Some updates to the description and comments.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This patch adds the compatible string of the exynos5440 sata controller
compliant with the ahci 1.3 and sata 3.0 specification.
changes in v2:
changed the compatible string by adding the actual IP
owners name instead of the SoC vendor name.
Signed-off-by: Girish K S <ks.giri@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
For some reason, a lot of port-multipliers have issues with softreset.
SIMG [34]7x series port-multipliers have been quite erratic in this
regard. I recall that it was better with some firmware revisions and
the current list of quirks worked fine for a while. I think it got
worse with later firmwares or maybe my test coverage wasn't good
enough. Anyways, HPA is reporting that his 3726 setup suffers SRST
failures and then the PMP gets confused and fails to probe the last
port.
The hope was that we try to stick to the standard as much as possible
and soonish the PMPs and their firmwares will improve in quality, so
the quirk list was kept to minimum. Well, it seems like that's never
gonna happen.
Let's set NO_SRST for all [34]7x PMPs so that whatever remaining
userbase of the device suffer the least. Maybe we should do the same
for 57xx's but unfortunately I don't have any device left to test and
I'm not even sure 57xx's have ever been made widely available, so
let's leave those alone for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: "H. Peter Anvin" <hpa@zytor.com>
Cc: stable@vger.kernel.org
ata_link_online() check in ahci_error_intr() is unnecessary, it should
be removed otherwise may lead to lockup with FBS enabled PMP.
http://marc.info/?l=linux-ide&m=137050421603272&w=2
Reported-by: Yu Liu <liuyu.ac@gmail.com>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Highbank supports SGPIO by bit-banging out the SGPIO signals over
three GPIO pins defined in the DTB. Add support for this SGPIO
functionality.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Create a new ata_port_operations function pointer called
transmit_led_message and give it the default value of
ahci_transmit_led_message. This allows AHCI controllers with
non-standard LED interfaces to use the existing em_ interface.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
When compiling the driver with gcc 4.8, it gives the following warning:
drivers/ata/sata_rcar.c: In function `sata_rcar_thaw':
drivers/ata/sata_rcar.c:183:2: warning: large integer implicitly truncated to unsigned type [-Woverflow]
Fix the warning by explicit cast of the 'unsigned long' value to 'u32'.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Increase the retry count for the hard reset function to 100 but
shorten the time out period to 500 ms. See the comment for
ahci_highbank_hardreset for the reasons why those vaulues were
chosen.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
The "runtime idle" helper routine, rpm_idle(), currently ignores
return values from .runtime_idle() callbacks executed by it.
However, it turns out that many subsystems use
pm_generic_runtime_idle() which checks the return value of the
driver's callback and executes pm_runtime_suspend() for the device
unless that value is not 0. If that logic is moved to rpm_idle()
instead, pm_generic_runtime_idle() can be dropped and its users
will not need any .runtime_idle() callbacks any more.
Moreover, the PCI, SCSI, and SATA subsystems' .runtime_idle()
routines, pci_pm_runtime_idle(), scsi_runtime_idle(), and
ata_port_runtime_idle(), respectively, as well as a few drivers'
ones may be simplified if rpm_idle() calls rpm_suspend() after 0 has
been returned by the .runtime_idle() callback executed by it.
To reduce overall code bloat, make the changes described above.
Tested-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Tested-by: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Kevin Hilman <khilman@linaro.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
To add AMD CZ SATA controller device ID of IDE mode.
[bhelgaas: drop pci_ids.h update]
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Pull libata changes from Tejun Heo:
"Nothing too interesting. PCI ID additions, some sata_rcar fixes and a
fringe bug fix for DMADIR handling which shouldn't affect any device
remotely modern."
* 'for-3.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
sata_rcar: fix interrupt handling
ahci: add an observed PCI ID for Marvell 88se9172 SATA controller
sata_rcar: clear STOP bit in bmdma_start() method
libata: make ata_exec_internal_sg honor DMADIR
ata_piix: add PCI IDs for Intel BayTail
libata: update "Maintained by:" tags
Use the wrapper function for getting the driver data using pci_dev
instead of using dev_get_drvdata() with &pdev->dev, so we can directly
pass a struct pci_dev. This is a purely cosmetic change.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The driver's interrupt handling code is too picky in deciding whether it should
handle an interrupt or not which causes completely unneeded spurious interrupts.
Thus make sata_rcar_{ata|serr}_interrupt() *void*; add ATA status register read
to sata_rcar_ata_interrupt() to clear an unexpected ATA interrupt -- it doesn't
get cleared by writing to the SATAINTSTAT register in the interrupt mode we use.
Also, in sata_rcar_ata_interrupt() we should check SATAINTSTAT register only for
enabled interrupts and we should clear only those interrupts that we have read
as active first time around, because else we have a race and risk clearing an
interrupt that can occur between read and write of the SATAINTSTAT register
and never registering it...
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
A third possible PCI ID, as personally observed, and found in the
pci.ids list.
Signed-off-by: George Spelvin <linux@horizon.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The 'base' field of 'struct sata_rcar_priv' is used very often
throughout the driver, so it seems worth loading it into a local
variable if it's used more than once in a function.
While at it, put some unitialized variables after intialized ones for
aesthetic reasons. :-)
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Using ATA_BMDMA_SHT() to intialize 'sata_rcar_sht' was suboptimal as
the R-Car descriptor table transfer counter is 28 bits wide (bit 1 to
bit 28), so that the 'dma_boundary' field of 0xFFFF is just too small,
as well as the 'sg_tablesize' field of 128. Use ATA_BASE_SHT() to
initialize 'sata_rcar_sht' instead and give proper values to the
'dma_boundary' and 'sg_tablesize' fields explicitly.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
I've modified sata_rcar_bmdma_fill_sg() to take care of splitting long
scatter/ gather segments due to the descriptor table transfer counter
being only 28 bits wide (bit 1 to bit 28) but that was in vain as even
if 'sata_rcar_sht' specified a correct 'dma_boundary' field, the DMA
and block layers would have split the S/G segments on the necassary
boundaries. Since the driver uses ATA_BMDMA_SHT() to initilaize
'sata_rcar_sht', the boundary is much smaller, only 0xFFFF, so the
code I've added is even more useless, and it's better to just remove
it.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
The motivation for this is to allow the driver to be
used with the r8a7790 SoC.
I believe that rather than adding another SoC to the list of allowed SoCs
it is better to simply remove the dependency of the driver on shmobile all
together.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Use the wrapper functions for getting and setting the driver data using
platform_device instead of using dev_{get,set}_drvdata() with &pdev->dev,
so we can directly pass a struct platform_device.
Also, unnecessary dev_set_drvdata() is removed, because the driver core
clears the driver data to NULL after device_release or on probe failure.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Currently all interrupts assigned to AHCI ports show up in
'/proc/interrupts' as 'ahci'. This fix adds port numbers as
suffixes and hence makes the descriptions distinct.
Reported-by: Jan Beulich <JBeulich@suse.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Iff bmdma_setup() has to stop a DMA transfer before starting a new
one, then the STOP bit in the ATAPI_CONTROL1 register will remain set
(it's only cleared when setting the START bit to 1) and then
bmdma_start() method will set both START and STOP bits simultaneously
which should abort the transfer being just started. Avoid that by
explicitly clearing the STOP bit in bmdma_start() method (in this case
it will be ignored on write).
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Some device require DMADIR to be enabled, but are not detected as such
by atapi_id_dmadir. One such example is "Asus Serillel 2"
SATA-host-to-PATA-device bridge: the bridge itself requires DMADIR,
even if the bridged device does not.
As atapi_dmadir module parameter can cause problems with some devices
(as per Tejun Heo's memory), enabling it globally may not be possible
depending on the hardware.
This patch adds atapi_dmadir in the form of a "force" horkage value,
allowing global, per-bus and per-device control.
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
While registering host controller track port number based upon number
of ports available on the controller, export port_no attribute through
/sys. This patch is needed by udev for composing persistent links in
/dev/disk/by-path.
/sys/devices/pci0000:00/0000:00:1f.2/ata8/ata_port/ata8
total 0
lrwxrwxrwx. 1 root root 0 Mar 6 12:43 device -> ../../../ata8
-r--r--r--. 1 root root 4096 Mar 6 12:43 idle_irq
-r--r--r--. 1 root root 4096 Mar 6 12:43 nr_pmp_links
-r--r--r--. 1 root root 4096 Mar 6 12:43 port_no
drwxr-xr-x. 2 root root 0 Mar 6 12:42 power
lrwxrwxrwx. 1 root root 0 Mar 6 12:41 subsystem -> ../../../../../../class/ata_port
-rw-r--r--. 1 root root 4096 Mar 6 12:40 uevent
1
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Jeff moved on to a greener pasture.
s/Maintained by: Jeff Garzik/Maintained by: Tejun Heo/g
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
devm_ioremap_resource does sanity checks on the given resource. No need to
duplicate this in the driver.
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
These are cleanups and smaller changes that either depend on earlier
feature branches or came in late during the development cycle.
We normally try to get all cleanups early, so these are the exceptions:
- A follow-up on the clocksource reworks, hopefully the last time
we need to merge clocksource subsystem changes through arm-soc.
A first set of patches was part of the original 3.10 arm-soc cleanup
series because of interdependencies with timer drivers now moved out
of arch/arm.
- Migrating the SPEAr13xx platform away from using auxdata for DMA
channel descriptions towards using information in device tree,
based on the earlier SPEAr multiplatform series
- A few follow-ups on the Atmel SAMA5 support and other changes
for Atmel at91 based on the larger at91 reworks.
- Moving the armada irqchip implementation to drivers/irqchip
- Several OMAP cleanups following up on the larger series already
merged in 3.10.
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Merge tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC late cleanups from Arnd Bergmann:
"These are cleanups and smaller changes that either depend on earlier
feature branches or came in late during the development cycle. We
normally try to get all cleanups early, so these are the exceptions:
- A follow-up on the clocksource reworks, hopefully the last time we
need to merge clocksource subsystem changes through arm-soc.
A first set of patches was part of the original 3.10 arm-soc
cleanup series because of interdependencies with timer drivers now
moved out of arch/arm.
- Migrating the SPEAr13xx platform away from using auxdata for DMA
channel descriptions towards using information in device tree,
based on the earlier SPEAr multiplatform series
- A few follow-ups on the Atmel SAMA5 support and other changes for
Atmel at91 based on the larger at91 reworks.
- Moving the armada irqchip implementation to drivers/irqchip
- Several OMAP cleanups following up on the larger series already
merged in 3.10."
* tag 'cleanup-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (50 commits)
ARM: OMAP4: change the device names in usb_bind_phy
ARM: OMAP2+: Fix mismerge for timer.c between ff931c82 and da4a686a
ARM: SPEAr: conditionalize SMP code
ARM: arch_timer: Silence debug preempt warnings
ARM: OMAP: remove unused variable
serial: amba-pl011: fix !CONFIG_DMA_ENGINE case
ata: arasan: remove the need for platform_data
ARM: at91/sama5d34ek.dts: remove not needed compatibility string
ARM: at91: dts: add MCI DMA support
ARM: at91: dts: add i2c dma support
ARM: at91: dts: set #dma-cells to the correct value
ARM: at91: suspend both memory controllers on at91sam9263
irqchip: armada-370-xp: slightly cleanup irq controller driver
irqchip: armada-370-xp: move IRQ handler to avoid forward declaration
irqchip: move IRQ driver for Armada 370/XP
ARM: mvebu: move L2 cache initialization in init_early()
devtree: add binding documentation for sp804
ARM: integrator-cp: convert use CLKSRC_OF for timer init
ARM: versatile: use OF init for sp804 timer
ARM: versatile: add versatile dtbs to dtbs target
...
Pull VFS updates from Al Viro,
Misc cleanups all over the place, mainly wrt /proc interfaces (switch
create_proc_entry to proc_create(), get rid of the deprecated
create_proc_read_entry() in favor of using proc_create_data() and
seq_file etc).
7kloc removed.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (204 commits)
don't bother with deferred freeing of fdtables
proc: Move non-public stuff from linux/proc_fs.h to fs/proc/internal.h
proc: Make the PROC_I() and PDE() macros internal to procfs
proc: Supply a function to remove a proc entry by PDE
take cgroup_open() and cpuset_open() to fs/proc/base.c
ppc: Clean up scanlog
ppc: Clean up rtas_flash driver somewhat
hostap: proc: Use remove_proc_subtree()
drm: proc: Use remove_proc_subtree()
drm: proc: Use minor->index to label things, not PDE->name
drm: Constify drm_proc_list[]
zoran: Don't print proc_dir_entry data in debug
reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()
proc: Supply an accessor for getting the data from a PDE's parent
airo: Use remove_proc_subtree()
rtl8192u: Don't need to save device proc dir PDE
rtl8187se: Use a dir under /proc/net/r8180/
proc: Add proc_mkdir_data()
proc: Move some bits from linux/proc_fs.h to linux/{of.h,signal.h,tty.h}
proc: Move PDE_NET() to fs/proc/proc_net.c
...
2) Minor cleanups for sata_highbank, pata_at32, pata_octeon_cf,
sata_rcar
3) pata_legacy: small bug found in opti chipset code (untested fix,
due to ancient h/w)
4) sata_fsl: RX water mark config knob, some h/w needs it
5) pata_imx: cleanups, DeviceTree support
6) SCSI<->ATA translator: properly export translator version,
not device firmware version
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Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata update from Jeff Garzik:
- More ACPI fixes, cleanups
- Minor cleanups for sata_highbank, pata_at32, pata_octeon_cf,
sata_rcar
- pata_legacy: small bug found in opti chipset code (untested fix, due
to ancient h/w)
- sata_fsl: RX water mark config knob, some h/w needs it
- pata_imx: cleanups, DeviceTree support
- SCSI<->ATA translator: properly export translator version, not device
firmware version
* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_highbank: Rename proc_name to the module name
ACPI/libata: Restore libata.noacpi support
[libata] acpi: make ata_ap_acpi_handle not block
[libata] SCSI: really use SATL version in VPD
pata_imx: add devicetree support
pata_imx: use void __iomem * for regs
pata_imx: cleanup error path
pata_imx: Use devm_clk_get
sata_rcar: Convert to devm_ioremap_resource()
fsl/sata: create a sysfs entry for rx water mark
libata-acpi: remove redundent code for power resource handling
sata_highbank: make ahci_highbank_pm_ops static
pata_octeon_cf: Use resource_size function
pata_legacy: bogus clock in opti82c46x_set_piomode()
pata_at32: use module_platform_driver_probe()
mkinitrd looks at /sys/class/scsi_host/host$hostnum/proc_name to find
the module name of a disk driver. Current name is "highbank-ahci" but
the module is "sata_highbank". Rename it to match the module name.
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: <stable@vger.kernel.org> v3.7..
Signed-off-by: Robert Richter <robert.richter@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch restores libata.noacpi support to libata-acpi.c.
There are broken optional control methods for ATA controller devices in the
real world. The libata.noacpi has been used for a long time as a
workaround to deal with issues caused by the broken ASL codes.
1. The "noacpi" option is introduced by the following commit:
commit 11ef697b37
Date: Thu, 28 Sep 2006 11:29:01 -0700
Subject: libata: ACPI and _GTF support
2. The "noacpi" option is renamed to "libata_noacpi" by the following
commit:
commit d7d0dad62a
Date: Wed, 28 Mar 2007 01:57:37 -0400
Subject: [libata] Disable ACPI by default; fix namespace problems
3. Some of its logics are changed over time - becomes relying on the
"acpi_handle" bound to the ATA devices since this commit:
commit fafbae87db
Date: Tue, 15 May 2007 03:28:16 +0900
Subject: libata-acpi: implement ata_acpi_associate()
4. The option is deleted by the following commit:
commit 30dcf76acc
Date: Mon, 25 Jun 2012 16:13:04 +0800
Subject: libata: migrate ACPI code over to new bindings
But the libata.noacpi setup is still left in the kernel without codes to
implement it. So the deletion introduces a regression to the Linux.
This patch disables ATA_ACPI support at runtime by stopping acpi binding
on the ATA devices to fix this regression.
This patch is tested by booting a SATA x86-64 kernel or a PATA x86 kernel
with or without "libata.noacpi=1" kernel command line argument.
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Since commit 30dcf76acc, ata_ap_acpi_handle will always do a namespace
walk, which requires acquiring an acpi namespace mutex. This made it
impossible to be used when calling path has held a spinlock.
For example, it can occur in the following code path for pata_acpi:
ata_scsi_queuecmd (ap->lock is acquired)
__ata_scsi_queuecmd
ata_scsi_translate
ata_qc_issue
pacpi_qc_issue
ata_acpi_stm
ata_ap_acpi_handle
acpi_get_child
acpi_walk_namespace
acpi_ut_acquire_mutex (acquire mutex while holding lock)
This caused scheduling while atomic bug, as reported in bug #56781.
Actually, ata_ap_acpi_handle doesn't have to walk the namespace every
time it is called, it can simply return the bound acpi handle on the
corresponding SCSI host. The reason previously it is not done this way
is, ata_ap_acpi_handle is used in the binding function
ata_acpi_bind_host by ata_acpi_gtm when the handle is not bound to the
SCSI host yet. Since we already have the ATA port's handle in its
binding function, we can simply use it instead of calling
ata_ap_acpi_handle there. So introduce a new function __ata_acpi_gtm,
where it will receive an acpi handle param in addition to the ATA port
which is solely used for debug statement. With this change, we can make
ata_ap_acpi_handle simply return the bound handle for SCSI host instead
of walking the acpi namespace now.
Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=56781
Reported-and-tested-by: <kenzopl@o2.pl>
Cc: <stable@vger.kernel.org>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Here's the big char / misc driver update for 3.10-rc1
A number of various driver updates, the majority being new functionality
in the MEI driver subsystem (it's now a subsystem, it started out just a
single driver), extcon updates, memory updates, hyper-v updates, and a
bunch of other small stuff that doesn't fit in any other tree.
All of these have been in linux-next for a while
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver update from Greg Kroah-Hartman:
"Here's the big char / misc driver update for 3.10-rc1
A number of various driver updates, the majority being new
functionality in the MEI driver subsystem (it's now a subsystem, it
started out just a single driver), extcon updates, memory updates,
hyper-v updates, and a bunch of other small stuff that doesn't fit in
any other tree.
All of these have been in linux-next for a while"
* tag 'char-misc-3.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (148 commits)
Tools: hv: Fix a checkpatch warning
tools: hv: skip iso9660 mounts in hv_vss_daemon
tools: hv: use FIFREEZE/FITHAW in hv_vss_daemon
tools: hv: use getmntent in hv_vss_daemon
Tools: hv: Fix a checkpatch warning
tools: hv: fix checks for origin of netlink message in hv_vss_daemon
Tools: hv: fix warnings in hv_vss_daemon
misc: mark spear13xx-pcie-gadget as broken
mei: fix krealloc() misuse in in mei_cl_irq_read_msg()
mei: reduce flow control only for completed messages
mei: reseting -> resetting
mei: fix reading large reposnes
mei: revamp mei_irq_read_client_message function
mei: revamp mei_amthif_irq_read_message
mei: revamp hbm state machine
Revert "drivers/scsi: use module_pcmcia_driver() in pcmcia drivers"
Revert "scsi: pcmcia: nsp_cs: remove module init/exit function prototypes"
scsi: pcmcia: nsp_cs: remove module init/exit function prototypes
mei: wd: fix line over 80 characters
misc: tsl2550: Use dev_pm_ops
...
This is a series originally prepared for inclusion in 3.9, which did
not work out because of dependencies on the dmaengine driver. All the
changes for the dmaengine code are merged in 3.9 now, so we can finally
do the switchover and remove the now unnecessary dma definitions for
spear13xx from the platform code.
The dma platform_data actually made up the majority of the spear13xx
platform code overall, so moving that into device tree files makes the
code substantially smaller.
* spear/dwdma:
ata: arasan: remove the need for platform_data
ARM: SPEAr13xx: Pass generic DW DMAC platform data from DT
serial: pl011: use generic DMA slave configuration if possible
spi: pl022: use generic DMA slave configuration if possible
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds a complete DT binding for the arasan device driver. There is
currently only one user, which is the spear13xx platform, so we don't
actually have to parse all the properties until another user comes in,
but this does use the generic DMA binding to find the DMA channel.
The patch is untested so far and is part of a series to convert
the spear platform over to use the generic DMA binding, so it
should stay with the rest of the series.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Viresh Kumar <viresh.linux@linaro.org>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
Cc: devicetree-discuss@lists.ozlabs.org
With the 0x1b4b vendor ID #define in place, convert hard-coded ID
values.
Signed-off-by: Myron Stowe <myron.stowe@redhat.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Fix the follwing warnings:
linux/drivers/ata/pata_pdc2027x.c:66: warning: 'pdc2027x_reinit_one' declared 'static' but never defined
pdc2027x_reinit_one are defined only when CONFIG_PM is defined,
thus making it conditional.
Signed-off-by: Wang YanQing <udknight@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
As per c78968bb by Jeff Garzik ([libata] SCSI: simulator version, not device
version, belongs in VPD) We need to provide the SATL driver version and not the
disk firmware version but the code overwrites the driver version with the disk
version.
Signed-off-by: Baruch Even <baruch@ev-en.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Not much to do here, only the compatible entries have to be added.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
regs is returned from ioremap, so add a __iomem. Also, make it
void * instead of u8 *.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
- rename free_priv label to 'err' since priv is allocated with devm_*
and not freed here.
- add missing 'goto err' in case ata_host_activate fails
- add 'ret' variable to return correct error value instead of hardcoded
-ENOMEM in error case.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use the newly introduced devm_ioremap_resource() instead of
devm_request_and_ioremap() which provides more consistent error handling.
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Support config RX WATER MARK via sysfs when running at run-time;
A wrokaround for fix the exception happened to some WD HDD, found on
WD3000HLFS-01G6U1, WD3000HLFS-01G6U0, some SSD disks. The read performance
is also regression (about 30%) when use default value.
According to the latest documents, 0x10 is the default value of RX WATER MARK,
but exception/performance issue happened to some disks mentioned above.
The exception log as below when testing read performance with IOZone:
ata1.00: exception Emask 0x0 SAct 0x7 SErr 0x800000 action 0x6 frozen
ata1: SError: { LinkSeq }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:00:ff:2c:14/01:00:02:00:00/40 tag 0 ncq 131072 in
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1.00: failed command: READ FPDMA QUEUED
ata1.00: cmd 60/00:08:ff:2d:14/01:00:02:00:00/40 tag 1 ncq 131072 in
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1.00: failed command: WRITE FPDMA QUEUED
ata1.00: cmd 61/10:10:af:08:6e/00:00:12:00:00/40 tag 2 ncq 8192 out
res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout)
ata1.00: status: { DRDY }
ata1: hard resetting link
ata1: Hardreset failed, not off-lined 0
ata1: Signature Update detected @ 504 msecs
ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
ata1.00: configured for UDMA/133
ata1.00: device reported invalid CHS sector 0
ata1.00: device reported invalid CHS sector 0
ata1.00: device reported invalid CHS sector 0
ata1: EH complete
The exception/performance can be resolved when RX WATER MARK value is 0x16.
Signed-off-by: Qiang Liu <qiang.liu@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
With commit:
bc9b6407bd
ACPI / PM: Rework the handling of devices depending on power resources
The ACPI core now takes care of the power resources an acpi device
depends on in that when the power resources are turned on, any devices
that are bound to or in the dependent list of this acpi device will be
runtime resumed. So there is no need for ata acpi code to duplicate this
effort, and thus, the ata_acpi_(un)register_power_resource functions are
no longer needed.
The above commit thinks the scsi device is not bound to the acpi device,
so needs to be added to the dependent list. But actually, it is. So
there is no need to add it to the dependent list, or it will be runtime
resumed twice(though this wouldn't cause any problem).
This patch fixes it, and as a result, the
ata_acpi_(un)register_power_resource and ata_acpi_(un)bind functions
are removed.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Make ahci_highbank_pm_ops static because ahci_highbank_pm_ops is
not exported.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use resource_size function instead of explicit computation.
Patch found using coccinelle.
Signed-off-by: Alexandru Gheorghiu <gheorghiuandru@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
"sysclk" is used as an index into a 4 element array. My static
checker complains because it can be out of bounds. From the
context, it looks like there is a right bit shift missing.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On Mon, Mar 25, 2013 at 06:26:50PM +0100, Ronald wrote:
> In reply to [1]: I have the same issue. Git bisect took 50+ rebuilds xD
>
> Smartd does not work anymore since 84a9a8cd9 ([libata] Set proper SK
> when CK_COND is set.).
> [1] http://www.spinics.net/lists/linux-ide/msg45268.html
It seems that the SAM_STAT_CHECK_CONDITION is not cleared
causing -EIO, because that patch modified sensebuf and
the check for clearing SAM_STAT_CHECK_CONDITION is no longer valid.
Fix that.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 803739d25c ("[libata] replace
sata_settings with devslp_timing"), which was also Cc: stable, used a
stack buffer to receive data from ata_read_log_page(), which triggers
the following warning:
ahci 0000:00:1f.2: DMA-API: device driver maps memory fromstack [addr=ffff880140469948]
Fix this by using ap->sector_buf instead of a stack buffer.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
There is a quirk patch 5e5a4f5d5a
"ata_piix: make DVD Drive recognisable on systems with Intel Sandybridge
chipsets(v2)" fixing the 4 ports IDE controller 32bit PIO mode.
We've hit a problem with DVD not recognized on Haswell Desktop platform which
includes Lynx Point 2-port SATA controller.
This quirk patch disables 32bit PIO on this controller in IDE mode.
v2: Change spelling error in statememnt pointed by Sergei Shtylyov.
v3: Change comment statememnt and spliting line over 80 characters pointed by
Libor Pechacek and also rebase the patch against 3.8-rc7 kernel.
Tested-by: Lee, Chun-Yi <jlee@suse.com>
Signed-off-by: Youquan Song <youquan.song@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch series covers both ASoC and extcon subsystems and fixes an
interaction between the HPDET function and the headphone outputs - we
really shouldn't run HPDET while the headphone is active. The first
patch is a refactoring to make the extcon side easier.
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Merge tag 'arizona-extcon-asoc' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc into char-misc-next
Mark writes:
ASoC/extcon: arizona: Fix interaction between HPDET and headphone outputs
This patch series covers both ASoC and extcon subsystems and fixes an
interaction between the HPDET function and the headphone outputs - we
really shouldn't run HPDET while the headphone is active. The first
patch is a refactoring to make the extcon side easier.
Use the new module_pcmcia_driver() macro to remove the boilerplate
module init/exit code in the pcmcia drivers.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This patch uses module_platform_driver_probe() macro which makes
the code smaller and simpler.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ODD is not a common TLA for non-ATA people so they will get confused
by its meaning when they are configuring the kernel. This patch fixed
this problem by using ODD only after stating what it is.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fix a copy and paste mistake introduced in:
commit bc9b6407bd
"ACPI / PM: Rework the handling of devices depending on power resources"
Signed-off-by: Sander Eikelenboom <linux@eikelenboom.it>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the RAID-mode SATA Device IDs for the Intel Wellsburg PCH
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
In reference to the commit cd006086fa
"ata_piix: defer disks to the Hyper-V drivers by default",
this trivial patch adds a description to prefer_ms_hyperv.
[rvrbovsk@redhat.com: MODULE_PARM_DESC() string formatting modified]
Signed-off-by: Andrew Brownfield <abrownfi@redhat.com>
Signed-off-by: Radomir Vrbovsky <rvrbovsk@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
After PCI and USB have stopped using the .find_bridge() callback in
struct acpi_bus_type, the only remaining user of it is SATA, but SATA
only pretends to be a user, because it points that callback to a stub
always returning -ENODEV.
For this reason, drop the SATA's dummy .find_bridge() callback and
remove .find_bridge(), which is not used any more, from struct
acpi_bus_type entirely.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
USB uses the .find_bridge() callback from struct acpi_bus_type
incorrectly, because as a result of the way it is used by USB every
device in the system that doesn't have a bus type or parent is
passed to usb_acpi_find_device() for inspection.
What USB actually needs, though, is to call usb_acpi_find_device()
for USB ports that don't have a bus type defined, but have
usb_port_device_type as their device type, as well as for USB
devices.
To fix that replace the struct bus_type pointer in struct
acpi_bus_type used for matching devices to specific subsystems
with a .match() callback to be used for this purpose and update
the users of struct acpi_bus_type, including USB, accordingly.
Define the .match() callback routine for USB, usb_acpi_bus_match(),
in such a way that it will cover both USB devices and USB ports
and remove the now redundant .find_bridge() callback pointer from
usb_acpi_bus.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Discussion was continuing after patch application, trying to figure out how
to best mesh exported data with the installers, boot-time agents and other
parties that want this info.
2) Merge Zero-Power Optical Device Driver (ZPODD) support, bringing
the wonderfulness of sane power management to your CD/DVD device.
Includes one SCSI-subsystem patch (with appropriate ACKs),
adding runtime PM support to 'sr' driver. That is the ZPODD interaction
bits.
Patchset went through some 13 revisions before it got here; kudos to
Intel for persistence.
3) pata_samsung_cf: use devm_clk_get()
4) more ata_piix, ahci PCI IDs
5) Add SATA driver for R-Car SoC
6) Convert libata to use devm_ioremap_resource (Note: I think
Greg sent this to you, also)
7) Set proper Sense Key (SK) in the SCSI simulator when
ATA passthrough indicates check condition. Google and specification
hawks everywhere shall rejoice.
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Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata updates from Jeff Garzik:
1) apply, and then revert, the sysfs export of ATA host controller
number. Discussion was continuing after patch application, trying to
figure out how to best mesh exported data with the installers,
boot-time agents and other parties that want this info.
2) Merge Zero-Power Optical Device Driver (ZPODD) support, bringing the
wonderfulness of sane power management to your CD/DVD device.
Includes one SCSI-subsystem patch (with appropriate ACKs), adding
runtime PM support to 'sr' driver. That is the ZPODD interaction
bits.
Patchset went through some 13 revisions before it got here; kudos to
Intel for persistence.
3) pata_samsung_cf: use devm_clk_get()
4) more ata_piix, ahci PCI IDs
5) Add SATA driver for R-Car SoC
6) Convert libata to use devm_ioremap_resource (Note: I think Greg sent
this to you, also)
7) Set proper Sense Key (SK) in the SCSI simulator when ATA passthrough
indicates check condition. Google and specification hawks everywhere
shall rejoice.
* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (22 commits)
[libata] fix smatch warning for zpodd_wake_dev
[libata] Set proper SK when CK_COND is set.
[libata] Convert to devm_ioremap_resource()
libata: add R-Car SATA driver
ahci: Add Device IDs for Intel Wellsburg PCH
ata_piix: Add Device IDs for Intel Wellsburg PCH
[SCSI] remove can_power_off flag from scsi_device
[libata] scsi: no poll when ODD is powered off
[SCSI] sr: support runtime pm
ahci: AHCI-mode SATA patch for Intel Avoton DeviceIDs
ata_piix: IDE-mode SATA patch for Intel Avoton DeviceIDs
[libata] PM code cleanup for ata port
[libata] pm: differentiate system and runtime pm for ata port
Revert "libata: export host controller number thru /sys"
libata: do not suspend port if normal ODD is attached
libata: expose pm qos flags for ata device
libata: handle power transition of ODD
libata: check zero power ready status for ZPODD
libata: move acpi notification code to zpodd
libata: identify and init ZPODD devices
...
Pull powerpc updates from Benjamin Herrenschmidt:
"So from the depth of frozen Minnesota, here's the powerpc pull request
for 3.9. It has a few interesting highlights, in addition to the
usual bunch of bug fixes, minor updates, embedded device tree updates
and new boards:
- Hand tuned asm implementation of SHA1 (by Paulus & Michael
Ellerman)
- Support for Doorbell interrupts on Power8 (kind of fast
thread-thread IPIs) by Ian Munsie
- Long overdue cleanup of the way we handle relocation of our open
firmware trampoline (prom_init.c) on 64-bit by Anton Blanchard
- Support for saving/restoring & context switching the PPR (Processor
Priority Register) on server processors that support it. This
allows the kernel to preserve thread priorities established by
userspace. By Haren Myneni.
- DAWR (new watchpoint facility) support on Power8 by Michael Neuling
- Ability to change the DSCR (Data Stream Control Register) which
controls cache prefetching on a running process via ptrace by
Alexey Kardashevskiy
- Support for context switching the TAR register on Power8 (new
branch target register meant to be used by some new specific
userspace perf event interrupt facility which is yet to be enabled)
by Ian Munsie.
- Improve preservation of the CFAR register (which captures the
origin of a branch) on various exception conditions by Paulus.
- Move the Bestcomm DMA driver from arch powerpc to drivers/dma where
it belongs by Philippe De Muyter
- Support for Transactional Memory on Power8 by Michael Neuling
(based on original work by Matt Evans). For those curious about
the feature, the patch contains a pretty good description."
(See commit db8ff90702: "powerpc: Documentation for transactional
memory on powerpc" for the mentioned description added to the file
Documentation/powerpc/transactional_memory.txt)
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (140 commits)
powerpc/kexec: Disable hard IRQ before kexec
powerpc/85xx: l2sram - Add compatible string for BSC9131 platform
powerpc/85xx: bsc9131 - Correct typo in SDHC device node
powerpc/e500/qemu-e500: enable coreint
powerpc/mpic: allow coreint to be determined by MPIC version
powerpc/fsl_pci: Store the pci ctlr device ptr in the pci ctlr struct
powerpc/85xx: Board support for ppa8548
powerpc/fsl: remove extraneous DIU platform functions
arch/powerpc/platforms/85xx/p1022_ds.c: adjust duplicate test
powerpc: Documentation for transactional memory on powerpc
powerpc: Add transactional memory to pseries and ppc64 defconfigs
powerpc: Add config option for transactional memory
powerpc: Add transactional memory to POWER8 cpu features
powerpc: Add new transactional memory state to the signal context
powerpc: Hook in new transactional memory code
powerpc: Routines for FP/VSX/VMX unavailable during a transaction
powerpc: Add transactional memory unavaliable execption handler
powerpc: Add reclaim and recheckpoint functions for context switching transactional memory processes
powerpc: Add FP/VSX and VMX register load functions for transactional memory
powerpc: Add helper functions for transactional memory context switching
...
Pull s390 update from Martin Schwidefsky:
"The most prominent change in this patch set is the software dirty bit
patch for s390. It removes __HAVE_ARCH_PAGE_TEST_AND_CLEAR_DIRTY and
the page_test_and_clear_dirty primitive which makes the common memory
management code a bit less obscure.
Heiko fixed most of the PCI related fallout, more often than not
missing GENERIC_HARDIRQS dependencies. Notable is one of the 3270
patches which adds an export to tty_io to be able to resize a tty.
The rest is the usual bunch of cleanups and bug fixes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (42 commits)
s390/module: Add missing R_390_NONE relocation type
drivers/gpio: add missing GENERIC_HARDIRQ dependency
drivers/input: add couple of missing GENERIC_HARDIRQS dependencies
s390/cleanup: rename SPP to LPP
s390/mm: implement software dirty bits
s390/mm: Fix crst upgrade of mmap with MAP_FIXED
s390/linker skript: discard exit.data at runtime
drivers/media: add missing GENERIC_HARDIRQS dependency
s390/bpf,jit: add vlan tag support
drivers/net,AT91RM9200: add missing GENERIC_HARDIRQS dependency
iucv: fix kernel panic at reboot
s390/Kconfig: sort list of arch selected config options
phylib: remove !S390 dependeny from Kconfig
uio: remove !S390 dependency from Kconfig
dasd: fix sysfs cleanup in dasd_generic_remove
s390/pci: fix hotplug module init
s390/pci: cleanup clp page allocation
s390/pci: cleanup clp inline assembly
s390/perf: cpum_cf: fallback to software sampling events
s390/mm: provide PAGE_SHARED define
...
Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers all
over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
If you need me to provide a merged tree to handle these resolutions,
please let me know.
Other than those patches, there's not much here, some minor fixes and
updates.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg Kroah-Hartman:
"Here is the big driver core merge for 3.9-rc1
There are two major series here, both of which touch lots of drivers
all over the kernel, and will cause you some merge conflicts:
- add a new function called devm_ioremap_resource() to properly be
able to check return values.
- remove CONFIG_EXPERIMENTAL
Other than those patches, there's not much here, some minor fixes and
updates"
Fix up trivial conflicts
* tag 'driver-core-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (221 commits)
base: memory: fix soft/hard_offline_page permissions
drivercore: Fix ordering between deferred_probe and exiting initcalls
backlight: fix class_find_device() arguments
TTY: mark tty_get_device call with the proper const values
driver-core: constify data for class_find_device()
firmware: Ignore abort check when no user-helper is used
firmware: Reduce ifdef CONFIG_FW_LOADER_USER_HELPER
firmware: Make user-mode helper optional
firmware: Refactoring for splitting user-mode helper code
Driver core: treat unregistered bus_types as having no devices
watchdog: Convert to devm_ioremap_resource()
thermal: Convert to devm_ioremap_resource()
spi: Convert to devm_ioremap_resource()
power: Convert to devm_ioremap_resource()
mtd: Convert to devm_ioremap_resource()
mmc: Convert to devm_ioremap_resource()
mfd: Convert to devm_ioremap_resource()
media: Convert to devm_ioremap_resource()
iommu: Convert to devm_ioremap_resource()
drm: Convert to devm_ioremap_resource()
...
Fix a smatch warning caused by an useless pointer check.
The context parameter (aka. ata_dev) will never be NULL until we remove
the acpi notification handler, so it is pointless to check it for NULL.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When the user application sends a ATA_12 or ATA_16 PASSTHROUGH
scsi command, put the task file register in the sense data with the
proper Sense Key. Instead of NO SENSE, set RECOVERED, as
specified in [SAT2]12.2.5 Table 92.
Tested:
Using udev ata_id to generate a passthrough command, IDENTIFY:
before:
sd 0:0:0:0: [sda] CDB: ATA command pass through(12)/Blank: \
a1 08 2e 00 01 00 00 00 00 ec 00 00
sd 0:0:0:0: [sda] Sense Key : No Sense [current] [descriptor]
Descriptor sense data with sense descriptors (in hex):
72 00 00 00 00 00 00 0e 09 0c 00 00 00 00 00 3f
00 18 00 a6 e0 50
after
sd 0:0:0:0: [sda] CDB: ATA command pass through(12)/Blank: \
a1 08 2e 00 01 00 00 00 00 ec 00 00
sd 0:0:0:0: [sda] Sense Key : Recovered Error [current] [descriptor]
Descriptor sense data with sense descriptors (in hex):
72 01 00 1d 00 00 00 0e 09 0c 00 00 00 01 00 00
00 00 00 00 00 50
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the AHCI-mode SATA Device IDs for the Intel Wellsburg PCH
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the IDE-mode SATA Device IDs for the Intel Wellsburg PCH
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
- Rework of the ACPI namespace scanning code from Rafael J. Wysocki
with contributions from Bjorn Helgaas, Jiang Liu, Mika Westerberg,
Toshi Kani, and Yinghai Lu.
- ACPI power resources handling and ACPI device PM update from
Rafael J. Wysocki.
- ACPICA update to version 20130117 from Bob Moore and Lv Zheng
with contributions from Aaron Lu, Chao Guan, Jesper Juhl, and
Tim Gardner.
- Support for Intel Lynxpoint LPSS from Mika Westerberg.
- cpuidle update from Len Brown including Intel Haswell support, C1
state for intel_idle, removal of global pm_idle.
- cpuidle fixes and cleanups from Daniel Lezcano.
- cpufreq fixes and cleanups from Viresh Kumar and Fabio Baltieri
with contributions from Stratos Karafotis and Rickard Andersson.
- Intel P-states driver for Sandy Bridge processors from
Dirk Brandewie.
- cpufreq driver for Marvell Kirkwood SoCs from Andrew Lunn.
- cpufreq fixes related to ordering issues between acpi-cpufreq and
powernow-k8 from Borislav Petkov and Matthew Garrett.
- cpufreq support for Calxeda Highbank processors from Mark Langsdorf
and Rob Herring.
- cpufreq driver for the Freescale i.MX6Q SoC and cpufreq-cpu0 update
from Shawn Guo.
- cpufreq Exynos fixes and cleanups from Jonghwan Choi, Sachin Kamat,
and Inderpal Singh.
- Support for "lightweight suspend" from Zhang Rui.
- Removal of the deprecated power trace API from Paul Gortmaker.
- Assorted updates from Andreas Fleig, Colin Ian King,
Davidlohr Bueso, Joseph Salisbury, Kees Cook, Li Fei,
Nishanth Menon, ShuoX Liu, Srinivas Pandruvada, Tejun Heo,
Thomas Renninger, and Yasuaki Ishimatsu.
/
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Merge tag 'pm+acpi-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
- Rework of the ACPI namespace scanning code from Rafael J. Wysocki
with contributions from Bjorn Helgaas, Jiang Liu, Mika Westerberg,
Toshi Kani, and Yinghai Lu.
- ACPI power resources handling and ACPI device PM update from Rafael
J Wysocki.
- ACPICA update to version 20130117 from Bob Moore and Lv Zheng with
contributions from Aaron Lu, Chao Guan, Jesper Juhl, and Tim Gardner.
- Support for Intel Lynxpoint LPSS from Mika Westerberg.
- cpuidle update from Len Brown including Intel Haswell support, C1
state for intel_idle, removal of global pm_idle.
- cpuidle fixes and cleanups from Daniel Lezcano.
- cpufreq fixes and cleanups from Viresh Kumar and Fabio Baltieri with
contributions from Stratos Karafotis and Rickard Andersson.
- Intel P-states driver for Sandy Bridge processors from Dirk
Brandewie.
- cpufreq driver for Marvell Kirkwood SoCs from Andrew Lunn.
- cpufreq fixes related to ordering issues between acpi-cpufreq and
powernow-k8 from Borislav Petkov and Matthew Garrett.
- cpufreq support for Calxeda Highbank processors from Mark Langsdorf
and Rob Herring.
- cpufreq driver for the Freescale i.MX6Q SoC and cpufreq-cpu0 update
from Shawn Guo.
- cpufreq Exynos fixes and cleanups from Jonghwan Choi, Sachin Kamat,
and Inderpal Singh.
- Support for "lightweight suspend" from Zhang Rui.
- Removal of the deprecated power trace API from Paul Gortmaker.
- Assorted updates from Andreas Fleig, Colin Ian King, Davidlohr Bueso,
Joseph Salisbury, Kees Cook, Li Fei, Nishanth Menon, ShuoX Liu,
Srinivas Pandruvada, Tejun Heo, Thomas Renninger, and Yasuaki
Ishimatsu.
* tag 'pm+acpi-3.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (267 commits)
PM idle: remove global declaration of pm_idle
unicore32 idle: delete stray pm_idle comment
openrisc idle: delete pm_idle
mn10300 idle: delete pm_idle
microblaze idle: delete pm_idle
m32r idle: delete pm_idle, and other dead idle code
ia64 idle: delete pm_idle
cris idle: delete idle and pm_idle
ARM64 idle: delete pm_idle
ARM idle: delete pm_idle
blackfin idle: delete pm_idle
sparc idle: rename pm_idle to sparc_idle
sh idle: rename global pm_idle to static sh_idle
x86 idle: rename global pm_idle to static x86_idle
APM idle: register apm_cpu_idle via cpuidle
cpufreq / intel_pstate: Add kernel command line option disable intel_pstate.
cpufreq / intel_pstate: Change to disallow module build
tools/power turbostat: display SMI count by default
intel_idle: export both C1 and C1E
ACPI / hotplug: Fix concurrency issues and memory leaks
...
<<
Please pull mpc5xxx patches for v3.9. The bestcomm driver is
moved to drivers/dma (so it will be usable for ColdFire).
mpc5121 now provides common dtsi file and existing mpc5121 device
trees use it. There are some minor clock init and sparse fixes
and updates for various 5200 device tree files from Grant. Some
fixes for bugs in the mpc5121 DIU driver are also included here
(Andrew Morton suggested to push them via my mpc5xxx tree).
>>
Add s390 to the list of architectures that don' want ATA.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* acpi-pm: (35 commits)
ACPI / PM: Handle missing _PSC in acpi_bus_update_power()
ACPI / PM: Do not power manage devices in unknown initial states
ACPI / PM: Fix acpi_bus_get_device() check in drivers/acpi/device_pm.c
ACPI / PM: Fix /proc/acpi/wakeup for devices w/o bus or parent
ACPI / PM: Fix consistency check for power resources during resume
ACPI / PM: Expose lists of device power resources to user space
sysfs: Functions for adding/removing symlinks to/from attribute groups
ACPI / PM: Expose current status of ACPI power resources
ACPI / PM: Expose power states of ACPI devices to user space
ACPI / scan: Prevent device add uevents from racing with user space
ACPI / PM: Fix device power state value after transitions to D3cold
ACPI / PM: Use string "D3cold" to represent ACPI_STATE_D3_COLD
ACPI / PM: Sanitize checks in acpi_power_on_resources()
ACPI / PM: Always evaluate _PSn after setting power resources
ACPI / PM: Introduce helper for executing _PSn methods
ACPI / PM: Make acpi_bus_init_power() more robust
ACPI / PM: Fix build for unusual combination of Kconfig options
ACPI / PM: remove leading whitespace from #ifdef
ACPI / PM: Consolidate suspend-specific and hibernate-specific code
ACPI / PM: Move device power management functions to device_pm.c
...
When the ODD is powered off, any action the user did to the ODD that
would generate a media event will trigger an ACPI interrupt, so the
poll for media event is no longer necessary. And the poll will also
cause a runtime status change, which will stop the ODD from staying in
powered off state, so the poll should better be stopped.
But since we don't have access to the gendisk structure in LLDs, here
comes the disk_events_disable_depth for scsi device. This field is a
hint set by LLDs to convey information to upper layer drivers. A value
of 0 means media poll is necessary for the device, while values above 0
means media poll is not needed and should better be skipped. So we can
increase its value when we are to power off the ODD in ATA layer and
decrease its value when the ODD is powered on, effectively silence the
media events poll.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the AHCI and RAID-mode SATA DeviceIDs for the Intel Avoton SOC.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the IDE-mode SATA DeviceIDs for the Intel Avoton SOC.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
For system freeze, if the port is already runtime suspended, leave it
alone and just return. The port will be resumed on thaw before it will
be used.
And since we will call get_noresume for every device during prepare
phase, and the port is resumed during thaw phase, it can't be in runtime
suspended state during the poweroff phase. So remove the
runtime_suspended check in poweroff callback.
And for all suspend(freeze/suspend/poweroff/etc.), there is no need to
touch the device, so set no_autopsy and no_recovery for them all.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
We need to do different things for system PM and runtime PM, e.g. we do
not need to enable runtime wake for ZPODD when we are doing system
suspend, etc.
Currently, we use PMSG_SUSPEND for both system suspend and runtime
suspend and PMSG_ON for both system resume and runtime resume. Change
this by using PMSG_AUTO_SUSPEND for runtime suspend and PMSG_AUTO_RESUME
for runtime resume. And since PMSG_ON means no transition, it is changed
to PMSG_RESUME for ata port's system resume.
The ata_acpi_set_state is modified accordingly, and the sata case and
pata case is seperated for easy reading.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Convert all uses of devm_request_and_ioremap() to the newly introduced
devm_ioremap_resource() which provides more consistent error handling.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Take advantage of multiple MSIs implementation on x86 - on
systems with IRQ remapping AHCI ports not only get assigned
separate MSI vectors - but also separate IRQs. As result,
interrupts generated by different ports could be serviced on
different CPUs rather than on a single one.
In cases when number of allocated MSIs is less than requested
the Sharing Last MSI mode does not get used, no matter
implemented in hardware or not. Instead, the driver assumes the
advantage of multiple MSIs is negated and falls back to the
single MSI mode as if MRSM bit was set (some Intel chips
implement this strategy anyway - MRSM bit gets set even if the
number of allocated MSIs exceeds the number of implemented ports).
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Matthew Wilcox <willy@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/15bf7ee314dd55f21ec7d2a01c47613cd8190a7c.1353324359.git.agordeev@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
CC: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
For ODDs, the upper layer will poll for media change every few
seconds, which will make it enter and leave suspend state very
often. And as each suspend will also cause a hard/soft reset,
the gain of runtime suspend is very little while the ODD may
malfunction after constantly being reset. So the idle callback
here will not proceed to suspend if a non-ZPODD capable ODD is
attached to the port.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Expose pm qos flags to user space so that user has a chance to disable
ZPODD feature, if he/she has a broken platform or devices or simply does
not like this feature.
This flag is exposed to user space only for ZPODD devices.
Due to this flag, it is possible the ODD is ZP ready but we didn't power
it off. So the zp_ready flag will need to be cleared whenever we found
the ODD is not in ZP ready state. Previously, once zp_ready is set, the
ODD will always be powered off and the flag will be cleared in
post_poweron. But this is no longer the case now.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When ata port is runtime suspended, it will check if the ODD attched to
it is a zero power(ZP) capable ODD and if the ZP capable ODD is in zero
power ready state. And if this is not the case, the highest acpi state
will be limited to ACPI_STATE_D3_HOT to avoid powering off the ODD. And
if the ODD can be powered off, runtime wake capability needs to be
enabled and powered_off flag will be set to let resume code knows that
the ODD was in powered off state.
And on resume, before it is powered on, if it was powered off during
suspend, runtime wake capability needs to be disabled. After it is
recovered, the ODD is considered functional, post power on processing
like eject tray if the ODD is drawer type is done, and several ZPODD
related fields will also be reset.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Per the Mount Fuji spec, the ODD is considered zero power ready when:
- For slot type ODD, no media inside;
- For tray type ODD, no media inside and tray closed.
The information can be retrieved by either the returned information of
command GET_EVENT_STATUS_NOTIFICATION(the command is used to poll for
media event) or sense code.
The information provided by the media status byte is not accurate, it
is possible that after a new disc is just inserted, the status byte
still returns media not present. So this information can not be used as
the deciding factor, we use sense code to decide if zpready status is
true.
When we first sensed the ODD in the zero power ready state, the
zp_sampled will be set and timestamp will be recoreded. And after ODD
stayed in this state for some pre-defined period, the ODD is considered
as power off ready and the zp_ready flag will be set. The zp_ready flag
serves as the deciding factor other code will use to see if power off is
OK for the ODD.
The Mount Fuji spec suggests a delay should be used here, to avoid the
case user ejects the ODD and then instantly inserts a new one again, so
that we can avoid a power transition. And some ODDs may be slow to place
its head to the home position after disc is ejected, so a delay here is
generally a good idea. And the delay time can be changed via the module
param zpodd_poweroff_delay.
The zero power ready status check is performed in the ata port's runtime
suspend code path, when port is not frozen yet, as we need to issue some
IOs to the ODD.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Since the ata acpi notification code introduced in commit
3bd46600a7 is solely for ZPODD, and we
now have a dedicated place for it, move these code there.
And the ata_acpi_add_pm_notifier code is changed a little bit in that it
is now invoked when scsi device is not bound with ACPI yet, so the way
to get the acpi handle is different with the previous version. And the
ata_acpi_add/remove_pm_notifier is also simplified a little bit in that
it doesn't check if the acpi_device for the handle exists or not as the
odd_can_poweroff function already checked that.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The ODD can be enabled for ZPODD if the following three conditions are
satisfied:
1 The ODD supports device attention;
2 The platform can runtime power off the ODD through ACPI;
3 The ODD is either slot type or drawer type.
For such ODDs, zpodd_init is called and a new structure is allocated for
it to store ZPODD related stuffs.
And the zpodd_dev_enabled function is used to test if ZPODD is currently
enabled for this ODD.
A new config CONFIG_SATA_ZPODD is added to selectively build ZPODD code.
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 0090def6 (ACPI: Add interface to register/unregister device
to/from power resources) made it possible to indicate to the ACPI
core that if the given device depends on any power resources, then
it should be resumed as soon as all of the power resources required
by it to transition to the D0 power state have been turned on.
Unfortunately, however, this was a mistake, because all devices
depending on power resources should be treated this way (i.e. they
should be resumed when all power resources required by their D0
state have been turned on) and for the majority of those devices
the ACPI core can figure out by itself which (physical) devices
depend on what power resources.
For this reason, replace the code added by commit 0090def6 with a
new, much more straightforward, mechanism that will be used
internally by the ACPI core and remove all references to that code
from kernel subsystems using ACPI.
For the cases when there are (physical) devices that should be
resumed whenever a not directly related ACPI device node goes into
D0 as a result of power resources configuration changes, like in
the SATA case, add two new routines, acpi_dev_pm_add_dependent()
and acpi_dev_pm_remove_dependent(), allowing subsystems to manage
such dependencies. Convert the SATA subsystem to use the new
functions accordingly.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Use devm_clk_get() rather than clk_get() to make cleanup paths
more simple.
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
NCQ capability was used to check availability of SATA Settings page
from Identify Device Data Log, which contains DevSlp timing variables.
It does not work on some HDDs and leads to error messages.
IDENTIFY word 78 bit 5(Hardware Feature Control) can't work either
because it is only the sufficient condition of Identify Device data
log, not the necessary condition.
This patch replaced ata_device->sata_settings with ->devslp_timing
to only save DevSlp timing variables(8 bytes), instead of the whole
SATA Settings page(512 bytes).
Addresses https://bugzilla.kernel.org/show_bug.cgi?id=51881
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Silicon does not support standard AHCI BAR assignment. Add
vendor/device exception to force BAR 2.
Signed-off-by: Hugh Daschbach <hugh.daschbach@enmotus.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
It should be a mistake introduced by commit 8d899e70c1.
qc->flags can't be set AC_ERR_*
Signed-off-by: Bian Yu <bianyu@kedacom.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
CONFIG_HOTPLUG is going away as an option. As a result, the __dev*
markings need to be removed.
This change removes the use of __devinit, __devexit_p, __devinitdata,
and __devexit from these drivers.
Based on patches originally written by Bill Pemberton, but redone by me
in order to handle some of the coding style issues better, by hand.
Cc: Bill Pemberton <wfp5p@virginia.edu>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
The bestcomm dma hardware, and some of its users like the FEC ethernet
component, is used in different FreeScale parts, including non-powerpc
parts like the ColdFire MCF547x & MCF548x families. Don't keep the
driver hidden in arch/powerpc where it is inaccessible for other arches.
.c files are moved to drivers/dma/bestcomm, while .h files are moved to
include/linux/fsl/bestcomm. Makefiles, Kconfigs and #include directives
are updated for the new file locations.
Tested by recompiling for MPC5200 with all bestcomm users enabled.
Signed-off-by: Philippe De Muyter <phdm@macqel.be>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Pull MIPS updates from Ralf Baechle:
"The MIPS bits for 3.8. This also includes a bunch fixes that were
sitting in the linux-mips.org git tree for a long time. This pull
request contains updates to several OCTEON drivers and the board
support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B,
updates to the SSB bus support, MIPS kexec code and adds support for
kdump.
When pulling this, there are two expected merge conflicts in
include/linux/bcma/bcma_driver_chipcommon.h which are trivial to
resolve, just remove the conflict markers and keep both alternatives."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits)
MIPS: PMC-Sierra Yosemite: Remove support.
VIDEO: Newport Fix console crashes
MIPS: wrppmc: Fix build of PCI code.
MIPS: IP22/IP28: Fix build of EISA code.
MIPS: RB532: Fix build of prom code.
MIPS: PowerTV: Fix build.
MIPS: IP27: Correct fucked grammar in ops-bridge.c
MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled
MIPS: Fix potencial corruption
MIPS: Fix for warning from FPU emulation code
MIPS: Handle COP3 Unusable exception as COP1X for FP emulation
MIPS: Fix poweroff failure when HOTPLUG_CPU configured.
MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
MIPS: Remove unused smvp.h
MIPS/EDAC: Improve OCTEON EDAC support.
MIPS: OCTEON: Add definitions for OCTEON memory contoller registers.
MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h
ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian.
MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree.
MIPS: Remove usage of CEVT_R4K_LIB config option.
...
Using ata_link_warn() instead of ata_link_printk().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Using ata_dev_info() instead of ata_dev_printk().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Using ata_<foo>_<level>() instead of ata_<foo>_printk().
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
These structs are used only for ahci_platform.c, so they should be
static. Thanks to Fengguang for the (automated) suggestion.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This reverts commit 1645bf1b51.
Brian Norris writes:
> David Daney writes:
> I can seem to find it. Without knowing what that does, I would be inclined
> to NACK the whole thing.
A NACK is probably the right thing. I was mostly converting a few
other drivers which used some simple, common patterns to use my new
common code, but this driver was missing it altogether. It looks like
there may be bigger issues, though, as you point out.
> This patch is likely to be incomplete as the driver is also missing the
> module_exit() things.
>
> It might be simpler to just make the driver "bool" instead of "tristate" in
> the Kconfig.
As noted earlier, I don't have much interest in this driver. I agree
that there are some other issues with the driver; I think it leaks
memory if it is ever allowed to unload, for one. Feel free to submit
an alternative patch to prevent this driver from being built as a
module.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This reverts commit de90cd71f6.
Shane Huang writes:
Please suspend this patch because I just received two new
DevSlp drives but found word 78 bit 5 is _not_ set.
I'm checking with the drive vendor whether he gave me
the wrong information. If bit 5 is not the necessary and
sufficient condition, I will implement another patch to
replace ata_device->sata_settings into ->devslp_timing.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The patch needs to eliminate the definition of OCTEON_IRQ_BOOTDMA so
that the device tree code can map the interrupt, so in order to not
temporarily break things, we do a single patch to both the interrupt
registration code and the pata_octeon_cf driver.
Also rolled in is a conversion to use hrtimers and corrections to the
timing calculations.
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: David Daney <david.daney@cavium.com>
This is a collection of header file cleanups, mostly for OMAP and AT91,
that keeps moving the platforms in the direction of multiplatform by
removing the need for mach-dependent header files used in drivers and
other places.
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Merge tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC Header cleanups from Olof Johansson:
"This is a collection of header file cleanups, mostly for OMAP and
AT91, that keeps moving the platforms in the direction of
multiplatform by removing the need for mach-dependent header files
used in drivers and other places."
Fix up mostly trivial conflicts as per Olof.
* tag 'headers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (106 commits)
ARM: OMAP2+: Move iommu/iovmm headers to platform_data
ARM: OMAP2+: Make some definitions local
ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c
ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
ARM: OMAP2+: Move iopgtable header to drivers/iommu/
ARM: OMAP: Merge iommu2.h into iommu.h
atmel: move ATMEL_MAX_UART to platform_data/atmel.h
ARM: OMAP: Remove omap_init_consistent_dma_size()
arm: at91: move at91rm9200 rtc header in drivers/rtc
arm: at91: move reset controller header to arm/arm/mach-at91
arm: at91: move pit define to the driver
arm: at91: move at91_shdwc.h to arch/arm/mach-at91
arm: at91: move board header to arch/arm/mach-at91
arn: at91: move at91_tc.h to arch/arm/mach-at91
arm: at91 move at91_aic.h to arch/arm/mach-at91
arm: at91 move board.h to arch/arm/mach-at91
arm: at91: move platfarm_data to include/linux/platform_data/atmel.h
arm: at91: drop machine defconfig
ARM: OMAP: Remove NEED_MACH_GPIO_H
ARM: OMAP: Remove unnecessary mach and plat includes
...
I failed to include <linux/libata.h>, causing this error:
drivers/ata/pata_of_platform.c:93: error: 'ata_platform_remove_one' undeclared here (not in a function)
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This driver does not detach and remove its ata_host properly on device
removal. Add the common .remove helper.
Note: I do not know this driver well enough to ensure this is the right
thing to do. Merge this patch with caution.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: David Daney <david.daney@cavium.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
All users of __pata_platform_remove() have been converted to utilize the
common ata_platform_remove_one().
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This relatively simple boiler-plate code is repeated in several platform
drivers. We should implement a common version in libata.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
AHCI platform devices may provide an exit() routine, via
ahci_platform_data, that powers off the SATA core. Such a routine should
be executed from the ata_port_operations host_stop() hook. That way, the
ATA subsystem can perform any last-minute hardware cleanup (via devres,
for example), then trigger the power-off at the appropriate time.
This patch fixes bus errors triggered during module removal or device
unbinding, seen on an SoC SATA core.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The ahci_platform driver can now use the module_platform_driver() macro.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
platform_driver_probe() should be used for registering this driver only
if we want to
"...remove its run-once probe() infrastructure from memory after the
driver has bound to the device."
However, we may want to leave the probe infrastructure in place in order
to support binding/unbinding a device dynamically. This is useful, for
instance, as a power management mechanism, where a device can be totally
powered down when unbound (whereas with runtime power management,
powering down the SATA core would incur unacceptable loss of
functionality).
Thus, convert this driver to use platform_driver_register().
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_device->dma_mode's initial value is zero, which is not a valid dma
mode, but ata_dma_enabled will return true for this value. This patch
sets dma_mode to 0xff in reset function, so that ata_dma_enabled will
not return true for this case, or it will cause problem for pata_acpi.
The corrsponding bugzilla page is at:
https://bugzilla.kernel.org/show_bug.cgi?id=49151
Reported-by: Phillip Wood <phillip.wood@dunelm.org.uk>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Tested-by: Szymon Janc <szymon@janc.net.pl>
Tested-by: Dutra Julio <dutra.julio@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: <stable@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
NCQ capability was used to check availability of SATA Settings page
from Identify Device Data Log, which contains DevSlp timing variables.
It does not work on some HDDs and leads to error messages.
IDENTIFY word 78 bit 5(Hardware Feature Control) should be used.
Quoting SATA spec 3.1:
If Hardware Feature Control is supported, then:
a) IDENTIFY DEVICE data word 78 bit 5 (see 13.2.1.18) shall be
set to one;
b) the SET FEATURES Select Hardware Feature Control subcommand
shall be supported (see 13.3.8);
c) page 08h of the Identify Device Data log (see 13.7.7) shall
be supported;
This patch is not tested on SATA HDD with DevSlp supported.
Reported-by: Borislav Petkov <bp@amd64.org>
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 66fa7f215 "libata-acpi: improve ACPI disabling" introdcued the
behaviour of disabling ATA ACPI if ata_acpi_on_devcfg failed the 2nd
time, but commit 30dcf76ac dropped this behaviour and this caused
problem for Dimitris Damigos, where his laptop can not resume correctly.
The bugzilla page for it is:
https://bugzilla.kernel.org/show_bug.cgi?id=49331
The problem is, ata_dev_push_id will fail the 2nd time it is invoked,
and due to disabling ACPI code is dropped, ata_acpi_on_devcfg which
calls ata_dev_push_id will keep failing and eventually made the device
disabled.
This patch restores the original behaviour, if acpi failed the 2nd time,
disable acpi functionality for the device(and we do not event need to
add a debug message for this as it is still there ;-).
Reported-by: Dimitris Damigos <damigos@freemail.gr>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
dev_<level> calls take less code than dev_printk(KERN_<LEVEL>
and reducing object size is good.
Coalesce formats for easier grep.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
'acdev->qc', 'acdev->qc->ap', and 'acdev->qc->tf' expressions are used multiple
times in this function, so it makes sense to use the local variables for them.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ahci_highbank_hardreset() uses bare number for the BSY bit of the ATA status
register, despite it is #define'd in <linux/ata.h>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
... because those functions don't use this parameter.
While at it, correctly align 'total_len' parameter.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The variable addr is initialized but never used
otherwise, so remove the unused variable.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The variable addr is initialized but never used
otherwise, so remove the unused variable.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The variable port_flags is initialized but never used
otherwise, so remove the unused variable.
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
I am working on a device which uses the cs5536 pata driver. There
are some broken hardware revisions out in the field, which can be
detected via DMI. On older versions with an embedded BIOS I
used libata.dma=0 to disable dma completely.
Now we are switching to a coreboot/seabios based BIOS where we
have DMI support and so I think its a good idea to get rid of
all those hacky kernel parameters as the same image
is used other devices where libata.dma=0 is not a good idea.
Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
An earlier commit cd006086fa ("ata_piix:
defer disks to the Hyper-V drivers by default") broke MS Virtual PC
guests. Hyper-V guests and Virtual PC guests have nearly identical DMI
info. As a result the driver does currently ignore the emulated hardware
in Virtual PC guests and defers the handling to hv_blkvsc. Since Virtual
PC does not offer paravirtualized drivers no disks will be found in the
guest.
One difference in the DMI info is the product version. This patch adds a
match for MS Virtual PC 2007 and "unignores" the emulated hardware.
This was reported for openSuSE 12.1 in bugzilla:
https://bugzilla.novell.com/show_bug.cgi?id=737532
Here is a detailed list of DMI info from example guests:
hwinfo --bios:
virtual pc guest:
System Info: #1
Manufacturer: "Microsoft Corporation"
Product: "Virtual Machine"
Version: "VS2005R2"
Serial: "3178-9905-1533-4840-9282-0569-59"
UUID: undefined, but settable
Wake-up: 0x06 (Power Switch)
Board Info: #2
Manufacturer: "Microsoft Corporation"
Product: "Virtual Machine"
Version: "5.0"
Serial: "3178-9905-1533-4840-9282-0569-59"
Chassis Info: #3
Manufacturer: "Microsoft Corporation"
Version: "5.0"
Serial: "3178-9905-1533-4840-9282-0569-59"
Asset Tag: "7188-3705-6309-9738-9645-0364-00"
Type: 0x03 (Desktop)
Bootup State: 0x03 (Safe)
Power Supply State: 0x03 (Safe)
Thermal State: 0x01 (Other)
Security Status: 0x01 (Other)
win2k8 guest:
System Info: #1
Manufacturer: "Microsoft Corporation"
Product: "Virtual Machine"
Version: "7.0"
Serial: "9106-3420-9819-5495-1514-2075-48"
UUID: undefined, but settable
Wake-up: 0x06 (Power Switch)
Board Info: #2
Manufacturer: "Microsoft Corporation"
Product: "Virtual Machine"
Version: "7.0"
Serial: "9106-3420-9819-5495-1514-2075-48"
Chassis Info: #3
Manufacturer: "Microsoft Corporation"
Version: "7.0"
Serial: "9106-3420-9819-5495-1514-2075-48"
Asset Tag: "7076-9522-6699-1042-9501-1785-77"
Type: 0x03 (Desktop)
Bootup State: 0x03 (Safe)
Power Supply State: 0x03 (Safe)
Thermal State: 0x01 (Other)
Security Status: 0x01 (Other)
win2k12 guest:
System Info: #1
Manufacturer: "Microsoft Corporation"
Product: "Virtual Machine"
Version: "7.0"
Serial: "8179-1954-0187-0085-3868-2270-14"
UUID: undefined, but settable
Wake-up: 0x06 (Power Switch)
Board Info: #2
Manufacturer: "Microsoft Corporation"
Product: "Virtual Machine"
Version: "7.0"
Serial: "8179-1954-0187-0085-3868-2270-14"
Chassis Info: #3
Manufacturer: "Microsoft Corporation"
Version: "7.0"
Serial: "8179-1954-0187-0085-3868-2270-14"
Asset Tag: "8374-0485-4557-6331-0620-5845-25"
Type: 0x03 (Desktop)
Bootup State: 0x03 (Safe)
Power Supply State: 0x03 (Safe)
Thermal State: 0x01 (Other)
Security Status: 0x01 (Other)
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
sata_promise's pdc_hard_reset_port() needs to serialize because it
flips a port-specific bit in controller register that's shared by
all ports. The code takes the ata host lock for this, but that's
broken because an interrupt may arrive on our irq during the hard
reset sequence, and that too will take the ata host lock. With
lockdep enabled a big nasty warning is seen.
Fixed by adding private state to the ata host structure, containing
a second lock used only for serializing the hard reset sequences.
This eliminated the lockdep warnings both on my test rig and on
the original reporter's machine.
Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Adko Branil <adkobranil@yahoo.com>
Cc: stable@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This is a set of four bug fixes. The isci one is an obvious thinko (using
request buffer instead of response buffer) which causes a command to fail.
The three others are DIF/DIX updates which are required because they're part
of a series of ten patches, the other seven of which went into the block layer
during the merge window meaning our current DIF/DIX implementation is broken
without these three.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of four bug fixes.
The isci one is an obvious thinko (using request buffer instead of
response buffer) which causes a command to fail.
The three others are DIF/DIX updates which are required because
they're part of a series of ten patches, the other seven of which went
into the block layer during the merge window meaning our current
DIF/DIX implementation is broken without these three.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
[SCSI] sd: Implement support for WRITE SAME
[SCSI] sd: Permit merged discard requests
[SCSI] Add a report opcode helper
[SCSI] isci: copy fis 0x34 response into proper buffer
This will fix warnings like following when CONFIG_PM_SLEEP is not set:
warning: 'xxx_suspend' defined but not used [-Wunused-function]
warning: 'xxx_resume' defined but not used [-Wunused-function]
Because
SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn)
Only references the callbacks on CONFIG_PM_SLEEP (instead of CONFIG_PM).
Cc: Viresh Kumar <viresh.linux@gmail.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
If kdump is triggered with pending IO, controller may not respond causing
kdump to fail.
http://marc.info/?l=linux-ide&m=133032255424658&w=2
During error recovery ata_do_dev_read_id never completes due hang
in mmio_insw.
ata_do_dev_read_id
ata_sff_data_xfer
ioread16_rep
mmio_insw
if DMA start bit is cleared before reset, PIO command is successful
and kdump succeeds.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_timing_find_mode could return NULL which is not checked by all
low-level ATA drivers using it and cause a NULL ptr deref. Warn at least
so that possible issues can get fixed easily.
Signed-off-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The ahci_highbank_probe function is incorrectly marked as __init,
which means it can get discarded at boot time, which might be
a problem if for some reason the device only becomes operational
after loading another module.
Using __devinit instead avoids seeing this warning for every build:
WARNING: vmlinux.o(.data+0xf7b0): Section mismatch in reference from the
variable ahci_highbank_driver to the function .init.text:ahci_highbank_probe()
The variable ahci_highbank_driver references
the function __init ahci_highbank_probe()
If the reference is valid then annotate the
variable with __init* or __refdata (see linux/init.h) or name the variable:
*_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Mark Langsdorf <mark.langsdorf@calxeda.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
PATA arasan driver expects the clock to be set to 166 MHz for proper
functioning. This patch sets clk to 166 MHz in probe.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
commit 6b66d95895 didn't handle SATA PMP
case in ata_acpi_bind_device and will cause a NULL ptr dereference when
user attached a SATA drive to the PMP port. Fix this by checking PMP
support.
This bug is reported by Dan van der Ster in the following bugzilla page:
https://bugzilla.kernel.org/show_bug.cgi?id=48211
Reported-by: Dan van der Ster <dan@vanderster.com>
Tested-by: Dan van der Ster <dan@vanderster.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Tested-by: Simon <tangouniform@sbcglobal.net>
Implement support for WRITE SAME(10) and WRITE SAME(16) in the SCSI disk
driver.
- We set the default maximum to 0xFFFF because there are several
devices out there that only support two-byte block counts even with
WRITE SAME(16). We only enable transfers bigger than 0xFFFF if the
device explicitly reports MAXIMUM WRITE SAME LENGTH in the BLOCK
LIMITS VPD.
- max_write_same_blocks can be overriden per-device basis in sysfs.
- The UNMAP discovery heuristics remain unchanged but the discard
limits are tweaked to match the "real" WRITE SAME commands.
- In the error handling logic we now distinguish between WRITE SAME
with and without UNMAP set.
The discovery process heuristics are:
- If the device reports a SCSI level of SPC-3 or greater we'll issue
READ SUPPORTED OPERATION CODES to find out whether WRITE SAME(16) is
supported. If that's the case we will use it.
- If the device supports the block limits VPD and reports a MAXIMUM
WRITE SAME LENGTH bigger than 0xFFFF we will use WRITE SAME(16).
- Otherwise we will use WRITE SAME(10) unless the target LBA is beyond
0xFFFFFFFF or the block count exceeds 0xFFFF.
- no_write_same is set for ATA, FireWire and USB.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Reviewed-by: Mike Snitzer <snitzer@redhat.com>
Reviewed-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The REPORT SUPPORTED OPERATION CODES command can be used to query
whether a given opcode is supported by a device. Add a helper function
that allows us to look up commands.
We only issue RSOC if the device reports compliance with SPC-3 or
later. But to err on the side of caution we disable the command for ATA,
FireWire and USB.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Acked-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This is a large set of updates, mostly for drivers (qla2xxx [including support
for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa, be2iscsi, isci,
lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas). There's also a rework for tape
adding virtually unlimited numbers of tape drives plus a set of dif fixes for
sd and a fix for a live lock on hot remove of SCSI devices.
This round includes a signed tag pull of isci-for-3.6
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Merge tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull first round of SCSI updates from James Bottomley:
"This is a large set of updates, mostly for drivers (qla2xxx [including
support for new 83xx based card], qla4xxx, mpt2sas, bfa, zfcp, hpsa,
be2iscsi, isci, lpfc, ipr, ibmvfc, ibmvscsi, megaraid_sas).
There's also a rework for tape adding virtually unlimited numbers of
tape drives plus a set of dif fixes for sd and a fix for a live lock
on hot remove of SCSI devices.
This round includes a signed tag pull of isci-for-3.6
Signed-off-by: James Bottomley <JBottomley@Parallels.com>"
Fix up trivial conflict in drivers/scsi/qla2xxx/qla_nx.c due to new PCI
helper function use in a function that was removed by this pull.
* tag 'scsi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (198 commits)
[SCSI] st: remove st_mutex
[SCSI] sd: Ensure we correctly disable devices with unknown protection type
[SCSI] hpsa: gen8plus Smart Array IDs
[SCSI] qla4xxx: Update driver version to 5.03.00-k1
[SCSI] qla4xxx: Disable generating pause frames for ISP83XX
[SCSI] qla4xxx: Fix double clearing of risc_intr for ISP83XX
[SCSI] qla4xxx: IDC implementation for Loopback
[SCSI] qla4xxx: update copyrights in LICENSE.qla4xxx
[SCSI] qla4xxx: Fix panic while rmmod
[SCSI] qla4xxx: Fail probe_adapter if IRQ allocation fails
[SCSI] qla4xxx: Prevent MSI/MSI-X falling back to INTx for ISP82XX
[SCSI] qla4xxx: Update idc reg in case of PCI AER
[SCSI] qla4xxx: Fix double IDC locking in qla4_8xxx_error_recovery
[SCSI] qla4xxx: Clear interrupt while unloading driver for ISP83XX
[SCSI] qla4xxx: Print correct IDC version
[SCSI] qla4xxx: Added new mbox cmd to pass driver version to FW
[SCSI] scsi_dh_alua: Enable STPG for unavailable ports
[SCSI] scsi_remove_target: fix softlockup regression on hot remove
[SCSI] ibmvscsi: Fix host config length field overflow
[SCSI] ibmvscsi: Remove backend abstraction
...
1) Apply -- and then revert -- the FUA feature. Caused
disk corruption in linux-next, proving it cannot be turned on by
default.
Net effect to upstream tree: zero
2) New AHCI platform driver sata_highbank
3) Improve SCSI MODE SENSE handling; support MODE SELECT
4) AHCI: support aggressive device sleep (power mgmt)
5) sata_fsl: minor fix
6) pata_arasan: clk support
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Merge tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata changes from Jeff Garzik:
"Minor libata updates, nothing notable.
1) Apply -- and then revert -- the FUA feature. Caused disk
corruption in linux-next, proving it cannot be turned on by
default.
Net effect to upstream tree: zero
2) New AHCI platform driver sata_highbank
3) Improve SCSI MODE SENSE handling; support MODE SELECT
4) AHCI: support aggressive device sleep (power mgmt)
5) sata_fsl: minor fix
6) pata_arasan: clk support"
* tag 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
sata_mv: Fix warnings when no PCI
[libata] Makefile: Fix build error in sata_highbank
[libata] export ata_dev_set_feature()
libata-core: use ATA_LBA in ata_build_rw_tf()
ata/ahci_platform: Add clock framework support
pata_arasan: add Device Tree probing capability
pata_arasan: Add clk_{un}prepare() support
ata: add platform driver for Calxeda AHCI controller
sata_fsl: add workaround for data length mismatch on freescale V2 controller
ahci: implement aggressive SATA device sleep support
ata: define enum constants for IDENTIFY DEVICE
Revert "libata: enable SATA disk fua detection on default"
[libata] scsi: implement MODE SELECT command
[libata] scsi: support MODE SENSE request for changeable and default parameters
[libata] scsi: Remove unlikely() from FUA check
libata: enable SATA disk fua detection on default
Dove can be configured without PCI. We then get a number of warnings:
warning: 'msi' defined but not used
warning: 'mv5_sht' defined but not used
warning: 'mv_dump_pci_cfg' defined but not used.
Move around variables and add #ifdef as necassary to fix the warnings.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Allow sata_highbank to build even if no other users of libahci.o are built.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the samsung include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: "Wolfram Sang (embedded platforms)" <w.sang@pengutronix.de>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Bryan Wu <bryan.wu@canonical.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Sylwester Nawrocki <s.nawrocki@samsung.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Sangbeom Kim <sbkim73@samsung.com>
Cc: Liam Girdwood <lrg@ti.com>
Cc: linux-samsung-soc@vger.kernel.org
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the pxa include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Marek Vasut <marex@denx.de>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Acked-by: Paul Parsons <lost.distance@yahoo.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Acked-By: Stefan Schmidt <stefan@openezx.org>
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Daniel Ribeiro <drwyrm@gmail.com>
Cc: Harald Welte <laforge@openezx.org>
Cc: Philipp Zabel <philipp.zabel@gmail.com>
Cc: Tomas Cech <sleep_walker@suse.cz>
Cc: Sergey Lapin <slapin@ossfans.org>
Cc: Jonathan Cameron <jic23@cam.ac.uk>
Cc: Dan Williams <djbw@fb.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Chris Ball <cjb@laptop.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Samuel Ortiz <samuel@sortiz.org>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Cc: openezx-devel@lists.openezx.org
Platform data for device drivers should be defined in
include/linux/platform_data/*.h, not in the architecture
and platform specific directories.
This moves such data out of the ep93xx include directories
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Hartley Sweeten <hsweeten@visionengravers.com>
Acked-by: Ryan Mallon <rmallon@gmail.com>
Acked-by: Vinod Koul <vinod.koul@linux.intel.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Dan Williams <djbw@fb.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Cc: Liam Girdwood <lrg@ti.com>
Cc: Jaroslav Kysela <perex@perex.cz>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Mika Westerberg <mika.westerberg@iki.fi>
Cc: Axel Lin <axel.lin@gmail.com>
Since READ/WRITE FPDMA QUEUED commands are 48-bit, bit 6 of the device register
means LBA, the same as for READ/WRITE DMA EXT commands. So use ATA_LBA instead
of the bare number in ata_build_rw_tf()'s branch dedicated to the NCQ commands.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On many architectures, drivers are supposed to prepare/unprepare &
enable/disable functional clock of device. This patch adds clock support for
ahci_platform.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
SPEAr platforms now support DT and so must convert all drivers to support DT.
This patch adds DT probing support for Arasan Compact Flash controller and
updates its documentation too.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
clk_{un}prepare is mandatory for platforms using common clock framework. Since
this driver is used by SPEAr platform, which supports common clock framework,
add clk_{un}prepare() support for it.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Calxeda highbank SATA phy has intermittent problems bringing up a link
with Gen3 drives. Retrying the phy hard reset can work-around this issue,
but each reset also disables spread spectrum support. The reset function
also needs to reprogram the phy to enable spread spectrum support.
Create a new driver based on ahci_platform to support the Calxeda Highbank
SATA controller.
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The freescale V2 SATA controller checks if the received data length matches
the programmed length 'ttl', if not, it assumes that this is an error.
In ATAPI, the 'ttl' is based on max allocation length and not the actual
data transfer length, controller will raise 'DLM' (Data length Mismatch)
error bit in Hstatus register. Along with 'DLM', DE (Device error) and
FE (fatal Error) bits are also set in Hstatus register, 'E' (Internal Error)
bit is set in Serror register and CE (Command Error) and DE (Device error)
registers have the corresponding bit set. In this condition, we need to
clear errors in following way: in the service routine, based on 'DLM' flag,
HCONTROL[27] operation clears Hstatus, CE and DE registers, clear Serror
register.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Anju Bhartiya <Anju.Bhartiya@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Device Sleep is a feature as described in AHCI 1.3.1 Technical Proposal.
This feature enables an HBA and SATA storage device to enter the DevSleep
interface state, enabling lower power SATA-based systems.
Aggressive Device Sleep enables the HBA to assert the DEVSLP signal as
soon as there are no commands outstanding to the device and the port
specific Device Sleep idle timer has expired. This enables autonomous
entry into the DevSleep interface state without waiting for software
in power sensitive systems.
This patch enables Aggressive Device Sleep only if both host controller
and device support it.
Tested on AMD reference board together with Device Sleep supported device
sample.
Signed-off-by: Shane Huang <shane.huang@amd.com>
Reviewed-by: Aaron Lu <aaron.lwe@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
They don't always appear as AHCI class devices but instead as IDE class.
Based on an initial patch by Hiroaki Nito
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42804
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This can also appear as 0x9192. Reported in bugzilla and confirmed with the
board documentation for these boards.
Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=42970
Signed-off-by: Alan Cox <alan@linux.intel.com>
Cc: The Stables <stable@vger.kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The JMicron JMB362 controller supports AHCI only, but some revisions
use the IDE class code. These need to be matched by device ID.
These additions have apparently been included by QNAP in their NAS
devices using these controllers.
References: http://bugs.debian.org/634180
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
commit d70e551c8e, Add " 2GB ATA Flash
Disk"/"ADMA428M" to DMA blacklist, should have added a space before 2GB.
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
libsas and ipr pass flags to ata_host_init that are meant for the port.
ata_host flags:
ATA_HOST_SIMPLEX = (1 << 0), /* Host is simplex, one DMA channel per host only */
ATA_HOST_STARTED = (1 << 1), /* Host started */
ATA_HOST_PARALLEL_SCAN = (1 << 2), /* Ports on this host can be scanned in parallel */
ATA_HOST_IGNORE_ATA = (1 << 3), /* Ignore ATA devices on this host. */
flags passed by libsas:
ATA_FLAG_SATA = (1 << 1),
ATA_FLAG_PIO_DMA = (1 << 7), /* PIO cmds via DMA */
ATA_FLAG_NCQ = (1 << 10), /* host supports NCQ */
The only one that aliases is ATA_HOST_STARTED which is a 'don't care' in
the libsas and ipr cases since ata_hosts from these sources are not
registered with libata.
Reported-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Brian King <brking@us.ibm.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Reuse ata_port_{suspend|resume}_common for sas. This path is chosen
over adding coordination between ata-tranport and sas-transport because
libsas wants to revalidate the domain at resume-time at the host level.
It can not validate links have resumed properly until libata has had a
chance to perform its revalidation, and any sane placing of an ata_port
in the sas-transport model would delay it's resumption until after the
host.
Export the common portion of port suspend/resume (bypass pm_runtime),
and allow sas to perform these operations asynchronously (similar to the
libsas async-ata probe implmentation). Async operation is determined by
having an external, rather than stack based, location for storing the
result of the operation.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: Jacek Danecki <jacek.danecki@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Hotplug testing with libsas currently encounters a 55 second wait for
link recovery to give up. In the case where the user trusts the
response time of their devices permit the recovery attempts to be
limited to one.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The cache_type file in sysfs lets users configure the disk cache in
write-through or write-back modes. However, ata disks do not support
writing to the file because they do not implement the MODE SELECT
command.
This patch adds a translation from MODE SELECT (for the caching page
only) to the ATA SET FEATURES command. The set of changeable parameters
answered by MODE SENSE is also adjusted accordingly.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Since the next patch will introduce support for MODE SELECT, it
makes sense to start advertising which bits are actually changeable.
For now, the answer is none.
Default parameters can also be reported, they are simply the same
as the current parameters.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Some other unlikely() should probably be removed as well. A fresh look
reveals an over-enthusiasm for unlikely() in libata-scsi.c.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Currently, SATA disk fua detection is disabled on default because most of
devices don't support this feature at that time. With the development of
technology, more and more SATA disks support this feature. So now we can enable
this detection on default.
Although fua detection is defined as a kernel module parameter, it is too hard
to set its value because it must be loaded and set before system starts up.
That needs to modify initrd file. So it is inconvenient for administrator who
needs to manage a huge number of servers.
Signed-off-by: Zheng Liu <wenqing.lz@taobao.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Michael Eitelwein writes:
I have an external SATA drive that was slowed down by bridge limits. I
found a solution in a thread on this list posted in 2008: It introduces
whitelist entries in libata-core.c for devices with well working bridges
(e.g. email on Fri, 31 Oct 2008 01:45:27 -0400).
I added my device to this whitelist in a custom built kernel and it
works fine for weeks now. How can I have this device added on the
whitelist within the official kernel? Is this whitelist mechanism still
supported or is there a smarter way to achieve whitelisting?
I added the following whitelist entry for my Buffalo DriveStation
Quattro "BUFFALO HD-QSU2/R5":
/* Devices that do not need bridging limits applied */
{ "MTRON MSP-SATA*", NULL, ATA_HORKAGE_BRIDGE_OK, },
{ "BUFFALO HD-QSU2/R5", NULL, ATA_HORKAGE_BRIDGE_OK, },
Reported-by: Michael Eitelwein <michael@eitelwein.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Building Linux for an ASUS Eee PC 701 4G with
ata2.00: CFA: SILICONMOTION SM223AC, , max UDMA/66
ata2.00: 7815024 sectors, multi 0: LBA
ata2.00: configured for UDMA/66
scsi 1:0:0:0: Direct-Access ATA SILICONMOTION SM n/a PQ: 0 ANSI: 5
sd 1:0:0:0: [sda] 7815024 512-byte logical blocks: (4.00 GB/3.72 GiB)
sd 1:0:0:0: [sda] Write Protect is off
sd 1:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 1:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA
sda: sda1
sd 1:0:0:0: [sda] Attached SCSI disk
sd 1:0:0:0: Attached scsi generic sg0 type 0
I followed the advice to not use the deprecated old PATA subsystem
ATA/ATAPI/MFM/RLL support (DEPRECATED) --->
and use the ATA subsystem instead.
Serial ATA and Parallel ATA drivers --->
Unfortunately I needed several tries to find out, that I needed the SFF
menu I had not selected before because I had never heard that term
before. I think it would have helped me, to have PATA or legacy IDE in
that item’s name.
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 30dcf76acc mistakenly dropped
the code to get an initial gtm for the IDE channel. This caused the
following problem for Sergei:
http://marc.info/?l=linux-kernel&m=134484963618457&w=2
Fix this by adding the call back in ata_acpi_bind_host, and due to
this, the ata_ap_acpi_handle is modified accordingly.
Tested-by: Sergei Trofimovich <slyich@gmail.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the IDE-mode SATA Device IDs for the Intel Lynx Point-LP PCH
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the AHCI-mode SATA Device IDs for the Intel Lynx Point-LP PCH
Signed-off-by: James Ralston <james.d.ralston@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The mainboard MSI E350DM-E33 is advertised with 6 SATA ports.
As it turns out, two of them seem to be driven by on-board
SATA<->PATA converters. If a disk drive is connected to one
of them kernel uses UDMA/33 mode due to cable detection:
[ 34.550823] scsi4 : pata_atiixp
[ 34.555517] scsi5 : pata_atiixp
[ 34.555942] ata5: PATA max UDMA/100 cmd 0x1f0 ctl 0x3f6 bmdma 0xf100 irq 14
[ 34.555948] ata6: PATA max UDMA/100 cmd 0x170 ctl 0x376 bmdma 0xf108 irq 15
...
[ 35.040799] ata5.00: ATA-8: WDC WD20EADS-00R6B0, 01.00A01, max UDMA/133
[ 35.040806] ata5.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[ 35.040817] ata5.00: limited to UDMA/33 due to 40-wire cable
[ 35.049166] ata5.00: configured for UDMA/33
[ 35.049402] scsi 4:0:0:0: Direct-Access ATA WDC WD20EADS-00R 01.0 PQ: 0 ANSI: 5
This patch forces "short cable" mode on this board, as it seems clear that
the on-board SATA<->PATA "cable" is short.
With this patch the disk is configured for UDMA/100:
[ 5.976756] ata5.00: ATA-8: WDC WD20EADS-00R6B0, 01.00A01, max UDMA/133
[ 5.996434] ata5.00: 3907029168 sectors, multi 16: LBA48 NCQ (depth 0/32)
[ 6.024787] ata5.00: configured for UDMA/100
Testing revealed no transfer issues.
Signed-off-by: Arnd Hannemann <arnd@arndnet.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Make ahci_dev_classify available to the ahci platform driver for custom
hard reset function.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This branch contains a set of device-tree conversions for Marvell Orion
platforms that were staged early but took a few tries to get the branch
into a format where it was suitable for us to pick up.
Given that most people working on these platforms are hobbyists with
limited time, we were a bit more flexible with merging it even though
it came in late.
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Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc Marvell Orion device-tree updates from Olof Johansson:
"This contains a set of device-tree conversions for Marvell Orion
platforms that were staged early but took a few tries to get the
branch into a format where it was suitable for us to pick up.
Given that most people working on these platforms are hobbyists with
limited time, we were a bit more flexible with merging it even though
it came in late."
* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (21 commits)
ARM: Kirkwood: Replace mrvl with marvell
ARM: Kirkwood: Describe GoFlex Net LEDs and SATA in DT.
ARM: Kirkwood: Describe Dreamplug LEDs in DT.
ARM: Kirkwood: Describe iConnects LEDs in DT.
ARM: Kirkwood: Describe iConnects temperature sensor in DT.
ARM: Kirkwood: Describe IB62x0 LEDs in DT.
ARM: Kirkwood: Describe IB62x0 gpio-keys in DT.
ARM: Kirkwood: Describe DNS32? gpio-keys in DT.
ARM: Kirkwood: Move common portions into a kirkwood-dnskw.dtsi
ARM: Kirkwood: Replace DNS-320/DNS-325 leds with dt bindings
ARM: Kirkwood: Describe DNS325 temperature sensor in DT.
ARM: Kirkwood: Use DT to configure SATA device.
ARM: kirkwood: use devicetree for SPI on dreamplug
ARM: kirkwood: Add LS-XHL and LS-CHLv2 support
ARM: Kirkwood: Initial DTS support for Kirkwood GoFlex Net
ARM: Kirkwood: Add basic device tree support for QNAP TS219.
ATA: sata_mv: Add device tree support
ARM: Orion: DTify the watchdog timer.
ARM: Orion: Add arch support needed for I2C via DT.
ARM: kirkwood: use devicetree for orion-spi
...
Conflicts:
drivers/watchdog/orion_wdt.c
With addition of dummy clk_*() calls for non CONFIG_HAVE_CLK cases in
clk.h, there is no need to have clk code enclosed in #ifdef
CONFIG_HAVE_CLK, #endif macros.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Jeff Garzik <jgarzik@redhat.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Mike Turquette <mturquette@linaro.org>
Cc: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: viresh kumar <viresh.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add support for instantiating this driver from device tree, and add
the necassary DT information to the kirkwood.dtsi file.
This is based on previous work by Michael Walle and Jason Cooper.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Josh Coombs <josh.coombs@gmail.com>
After merging the libata tree, today's [2012-07-01] linux-next build (x86_64
allmodconfig) failed like this:
drivers/ata/libata-acpi.c: In function 'ata_acpi_set_state':
drivers/ata/libata-acpi.c:872:5: error: too few arguments to function 'acpi_pm_device_sleep_state'
include/acpi/acpi_bus.h:418:5: note: declared here
Caused by commit 3bd46600a7 ("libata-acpi: add ata port runtime D3Cold
support") from the libata tree interacting with commit ee85f54371
("ACPI/PM: specify lowest allowed state for device sleep state") from the
pci tree.
This patch adds ACPI_STATE_D3 as the new third parameter to
acpi_pm_device_sleep_state()
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Two bits were appended to the end of the bitfield
list in struct scsi_device. Resolve that conflict
by including both bits.
Conflicts:
include/scsi/scsi_device.h
Only channel 0 is currently support and the driver code is fixed on
channel 0. This patch lets device node specifying dma-channel in case
it is not 0. If no dma-channel property is specified, channel 0 is
used as default.
Signed-off-by: Thang Q. Nguyen <tqnguyen@apm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fixed coding style issues related to braces found
by checkpatch.pl in drivers/ata/ahci.c
Signed-off-by: Jeffrin Jose <ahiliation@yahoo.co.in>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The function ata_ering_clear_cb is only referenced in this file and
should be marked static to prevent it from being exposed globally.
This quiets the sparse warning:
warning: symbol 'ata_ering_clear_cb' was not declared. Should it be static?
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Functions not referenced outside of a source file should be marked
static to prevent it from being exposed globally.
This quiets the sparse warnings:
warning: symbol 'ata_is_port' was not declared. Should it be static?
warning: symbol 'ata_is_link' was not declared. Should it be static?
warning: symbol 'ata_is_ata_dev' was not declared. Should it be static?
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The hardreset operation is currently not supported. This causes
sometime the SATA driver does cause kernel crash because of
none-determined state.a This patch will fix the issue.
Signed-off-by: Thang Q. Nguyen <tqnguyen@apm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch converts the drivers in drivers/ata/* to use module_pci_driver()
macro which makes the code smaller and a bit simpler.
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Mikael Pettersson <mikpe@it.uu.se>
Cc: Mark Lord <kernel@teksavvy.com>
Cc: Jeremy Higdon <jeremy@sgi.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
IO_DATA_PATH_WIDTH_8 is 0, so a bit-and with it is always false. The
value IO_DATA_PATH_WIDTH covers the bits of the IO_DATA_PATH constants, so
first pick those bits and then make the test using !=.
This problem was found using Coccinelle (http://coccinelle.lip6.fr/).
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
With the new i.mx clock framework, we need to use
clk_prepare_enable/clk_disable_unprepare.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Like e65cc194f7 (ahci: Enable SB600 64bit
DMA on MSI K9A2 Platinum) and 3c4aa91f21
(ahci: Enable SB600 64bit DMA on Asus M3A), this patch enables 64bit DMA
for the AHCI SATA controller of another board that has the SB600
southbridge.
In this case though we're enabling 64bit DMA for another MSI motherboard,
the K9AGM2 or MS-7327. It is new enough that all of the BIOS releases
since the initial release (1.0 from 2007-02-09) work correctly with 64bit
DMA enabled.
Signed-off-by: Mark Nelson <mdnelson8@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When using my Seagate FreeAgent GoFlex eSATAp external disk enclosure,
interface errors are always seen until 1.5Gbps is negotiated [1]. This
occurs using any disk in the enclosure, and when the disk is connected
directly with a generic passive eSATAp cable, we see stable 3Gbps
operation as expected.
Blacklist 3Gbps mode to avoid dataloss and the ~30s delay bus reset
and renegotiation incurs.
Signed-off-by: Daniel J Blueman <daniel@quora.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Adds inline for ata_acpi_unregister/ata_acpi_bind/ata_acpi_unbind
in drivers/ata/libata.h for !CONFIG_ATA_ACPI to fix below warnings.
warning: 'ata_acpi_unregister' defined but not used [-Wunused-function]
warning: 'ata_acpi_bind' defined but not used [-Wunused-function]
warning: 'ata_acpi_unbind' defined but not used [-Wunused-function]
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When managing shost->host_eh_scheduled libata assumes that there is a
1:1 shost-to-ata_port relationship. libsas creates a 1:N relationship
so it needs to manage host_eh_scheduled cumulatively at the host level.
The sched_eh and end_eh port port ops allow libsas to track when domain
devices enter/leave the "eh-pending" state under ha->lock (previously
named ha->state_lock, but it is no longer just a lock for ha->state
changes).
Since host_eh_scheduled indicates eh without backing commands pinning
the device it can be deallocated at any time. Move the taking of the
domain_device reference under the port_lock to guarantee that the
ata_port stays around for the duration of eh.
Reviewed-by: Jacek Danecki <jacek.danecki@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
If ATA device supports "Device Attention", then tell scsi layer that
the device supports runtime power off.
Signed-off-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add a new flag ATA_DFLAG_DA to indicate that device supports "Device
Attention".
Acked-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ATA port may support runtime D3Cold state, for example, Zero-power ODD case.
This patch adds wakeup notifier and enable/disable run_wake during
supend/resume.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Currently, ata_acpi_set_state() only sets acpi sate for IDE port.
Remove this limitation.
Acked-by: Aaron Lu <aaron.lu@amd.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Now that we have the ability to directly glue the ACPI namespace to the
driver model in libata, we don't need the custom code to handle the same
thing. Remove it and migrate the functions over to the new code.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Holger Macht <holger@homac.de>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Associate the ACPI device tree and libata devices.
This patch uses the generic ACPI glue framework to do so.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Holger Macht <holger@homac.de>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
viresh.kumar@st.com email-id doesn't exist anymore as I have left the
company. Replace ST's id with viresh.linux@gmail.com.
It also updates .mailmap file to fix address for 'git shortlog'
Signed-off-by: Viresh Kumar <viresh.linux@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The new clock subsystem was merged in linux-3.4 without any users, this
now moves the first three platforms over to it: imx, mxs and spear.
The series also contains the changes for the clock subsystem itself,
since Mike preferred to have it together with the platforms that require
these changes, in order to avoid interdependencies and conflicts.
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Merge tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull arm-soc clock driver changes from Olof Johansson:
"The new clock subsystem was merged in linux-3.4 without any users,
this now moves the first three platforms over to it: imx, mxs and
spear.
The series also contains the changes for the clock subsystem itself,
since Mike preferred to have it together with the platforms that
require these changes, in order to avoid interdependencies and
conflicts."
Fix up trivial conflicts in arch/arm/mach-kirkwood/common.c (code
removed in one branch, added OF support in another) and
drivers/dma/imx-sdma.c (independent changes next to each other).
* tag 'clock' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (97 commits)
clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
clk: Provide dummy clk_unregister()
SPEAr: Update defconfigs
SPEAr: Add SMI NOR partition info in dts files
SPEAr: Switch to common clock framework
SPEAr: Call clk_prepare() before calling clk_enable
SPEAr: clk: Add General Purpose Timer Synthesizer clock
SPEAr: clk: Add Fractional Synthesizer clock
SPEAr: clk: Add Auxiliary Synthesizer clock
SPEAr: clk: Add VCO-PLL Synthesizer clock
SPEAr: Add DT bindings for SPEAr's timer
ARM i.MX: remove now unused clock files
ARM: i.MX6: implement clocks using common clock framework
ARM i.MX35: implement clocks using common clock framework
ARM i.MX5: implement clocks using common clock framework
ARM: Kirkwood: Replace clock gating
ARM: Orion: Audio: Add clk/clkdev support
ARM: Orion: PCIE: Add support for clk
ARM: Orion: XOR: Add support for clk
ARM: Orion: CESA: Add support for clk
...
A user has several systems with a couple of models of flash disks with IDE
connectors. These disks work fine in 2.6.18-ish kernels but corrupt data on
new kernels.
The difference appears to be with the default I/O method used by the IDE
controller driver between the kernels. In the older kernels, the
configuration is very conservative and the driver stays in PIO mode. With
new kernels, the ata driver (pata_serverworks) attempts to use UDMA/66
which the drive claims to support. This mode, however, does not appear to
work in DMA mode. The drive does work correctly and no corruption is
seen if the kernel parameter "libata.force=5:pio0,6:pio0" is used to force
the driver to use PIO instead of DMA mode.
Blacklist these drives. Unfortunately the model name of the drive is very
generic, " 2GB ATA Flash Disk", but the revision is specific, "ADMA428M".
Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When ata_generic_ide=1 is set don't do the is_intel_ider() magic
check. We found at least one box who needed that.
Cc: alan@linux.intel.com
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* 'clk-next' of git://git.linaro.org/people/mturquette/linux:
clk: Fix CLK_SET_RATE_GATE flag validation in clk_set_rate().
clk: Provide dummy clk_unregister()
ARM: Kirkwood: Replace clock gating
ARM: Orion: Audio: Add clk/clkdev support
ARM: Orion: PCIE: Add support for clk
ARM: Orion: XOR: Add support for clk
ARM: Orion: CESA: Add support for clk
ARM: Orion: SDIO: Add support for clk.
ARM: Orion: NAND: Add support for clk, if there is one.
ARM: Orion: EHCI: Add support for enabling clocks
ARM: Orion: SATA: Add per channel clk/clkdev support.
ARM: Orion: UART: Get the clock rate via clk_get_rate().
ARM: Orion: WDT: Add clk/clkdev support
ARM: Orion: Eth: Add clk/clkdev support.
ARM: Orion: SPI: Add clk/clkdev support.
ARM: Orion: Add clocks using the generic clk infrastructure.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
The Orion kirkwood chips have a gatable clock per SATA channel. Add
code to get and enable this clk if it exists.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Jamie Lentin <jm@lentin.co.uk>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
ATA and SATA drives have had built-in retries for media errors
for as long as they've been commonplace in computers (early 1990s).
When libata stumbles across a bad sector, it can waste minutes
sitting there doing retry after retry before finally giving up
and letting the higher layers deal with it.
This patch removes retries for media errors only.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When we are hosted on a Microsoft Hyper-V hypervisor the guest disks
are exposed both via the Hyper-V paravirtualised drivers and via an
emulated SATA disk drive. In this case we want to use the paravirtualised
drivers if we can as they are much more efficient. Note that the Hyper-V
paravirtualised drivers only expose the virtual hard disk devices, the
CDROM/DVD devices must still be enumerated.
Mark the host controller ATA_HOST_IGNORE_ATA to prevent enumeration of
disk devices.
BugLink: http://bugs.launchpad.net/bugs/929545
BugLink: http://bugs.launchpad.net/bugs/942316
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Where devices are visible via more than one host we sometimes wish to
indicate that cirtain devices should be ignored on a specific host. Add a
host flag indicating that this host wishes to ignore ATA specific devices.
Signed-off-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
1) Fix regression that could cause a misdiagnosis, which in turn could
lead to an erroneous 3.0 Gbps -> 1.5 downshift, particularly when hotplug
and suspend/resume is involved.
2) Fix a regression that led to ata%d controller ids being numbered one
larger than in <= 3.4-rc3 (oh, the horror!). Controller ids should now be
as expected.
3) add some DT, PCI id's
4) ata/pata_arasan_cf: minor cpp fixing/cleaning
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Merge tag 'tag/upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata fixes from Jeff Garzik:
1) Fix regression that could cause a misdiagnosis, which in turn could
lead to an erroneous 3.0 Gbps -> 1.5 downshift, particularly when hotplug
and suspend/resume is involved.
2) Fix a regression that led to ata%d controller ids being numbered one
larger than in <= 3.4-rc3 (oh, the horror!). Controller ids should now be
as expected.
3) add some DT, PCI id's
4) ata/pata_arasan_cf: minor cpp fixing/cleaning
* tag 'tag/upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
ata: ahci_platform: Add synopsys ahci controller in DT's compatible list
ata/pata_arasan_cf: Move arasan_cf_pm_ops out of #ifdef, #endif macros
libata: init ata_print_id to 0
ahci: Detect Marvell 88SE9172 SATA controller
libata: skip old error history when counting probe trials
SPEAr13xx series of SoCs contain Synopsys AHCI SATA Controller which shares
ahci_platform driver with other controller versions.
This patch updates DT compatible list for ahci_platform. It also updates and
renames binding documentation to more generic name.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
#ifdef, #endif is not required in definition/usage of arasan_cf_pm_ops. So, move
this definition and its usage outside of them.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When comparing the dmesg between 3.4-rc3 and 3.4-rc4 I found the
following differences:
-ata1: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff100 irq 47
-ata2: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff180 irq 47
-ata3: DUMMY
+ata2: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff100 irq 47
+ata3: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff180 irq 47
ata4: DUMMY
ata5: DUMMY
-ata6: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff380 irq 47
+ata6: DUMMY
+ata7: SATA max UDMA/133 abar m2048@0xf9fff000 port 0xf9fff380 irq 47
The change of numbering comes from commit 85d6725b7c ("libata:
make ata_print_id atomic") that changed lines like
ap->print_id = ata_print_id++;
to
ap->print_id = atomic_inc_return(&ata_print_id);
As the latter behaves like ++ata_print_id, we must initialize
it to zero to start the numbering from one.
Signed-off-by: Tero Roponen <tero.roponen@gmail.com>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The Marvell 88SE9172 SATA controller (PCI ID 1b4b 917a) already worked
once it was detected, but was missing an ahci_pci_tbl entry.
Boot tested on a Gigabyte Z68X-UD3H-B3 motherboard.
Signed-off-by: Matt Johnson <johnso87@illinois.edu>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit d902747("[libata] Add ATA transport class") introduced
ATA_EFLAG_OLD_ER to mark entries in the error ring as cleared.
But ata_count_probe_trials_cb() didn't check this flag and it still
counts the old error history. So wrong probe trials count is returned
and it causes problem, for example, SATA link speed is slowed down from
3.0Gbps to 1.5Gbps.
Fix it by checking ATA_EFLAG_OLD_ER in ata_count_probe_trials_cb().
Cc: stable <stable@vger.kernel.org> # 2.6.37+
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This changes the ordering of initialization and probing events from:
1/ allocate rphy in PORTE_BYTES_DMAED, DISCE_REVALIDATE_DOMAIN
2/ allocate ata_port and schedule port probe in DISCE_PROBE
...to:
1/ allocate ata_port in PORTE_BYTES_DMAED, DISCE_REVALIDATE_DOMAIN
2/ allocate rphy in PORTE_BYTES_DMAED, DISCE_REVALIDATE_DOMAIN
3/ schedule port probe in DISCE_PROBE
This ordering prevents PHYE_SIGNAL_LOSS_EVENTS from sneaking in to
destrory ata devices before they have been fully initialized:
BUG: unable to handle kernel paging request at 0000000000003b10
IP: [<ffffffffa0053d7e>] sas_ata_end_eh+0x12/0x5e [libsas]
...
[<ffffffffa004d1af>] sas_unregister_common_dev+0x78/0xc9 [libsas]
[<ffffffffa004d4d4>] sas_unregister_dev+0x4f/0xad [libsas]
[<ffffffffa004d5b1>] sas_unregister_domain_devices+0x7f/0xbf [libsas]
[<ffffffffa004c487>] sas_deform_port+0x61/0x1b8 [libsas]
[<ffffffffa004bed0>] sas_phye_loss_of_signal+0x29/0x2b [libsas]
...and kills the awkward "sata domain_device briefly existing in the
domain without an ata_port" state.
Reported-by: Michal Kosciowski <michal.kosciowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Use scsi_add_host_with_dma in ata_scsi_add_hosts to pass in the
correct DMA device(ATA host).
Bug report: http://marc.info/?l=linux-ide&m=133177818318187&w=2
Reported-and-tested-by: Jörg Sommer <joerg@alea.gnuu.de>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Forbid port runtime pm by default because it has known hotplug issue.
User can allow it by, for example
echo auto > /sys/devices/pci0000:00/0000:00:1f.2/ata2/power/control
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This variable is incremented from multiple contexts (module_init via
libata-lldds and the libsas discovery thread). Make it atomic to head
off any chance of libsas and libata creating duplicate ids.
Acked-by: Jacek Danecki <jacek.danecki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Gcc version 4.6.2-12 complains that if we can't find the "nr-ports"
property in of_property_read_u32_array() then "n_ports" is used
uninitialized. Let's set it to zero in that case.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the IDE-mode SATA DeviceIDs for the Intel DH89xxCC PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
broke on deployed hardware. Make new behavior optional, rather than
default, turning it on only for specific embedded platforms that need this.
Everybody else runs in the famous "non conformant but working" mode.
2) pata_cmd64x, pata_legacy cleanups
3) new Intel SATA PCI IDs
4) misc minor vendor feature additions
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev
Pull libata updates from Jeff Garzik:
1) AHCI regression fix. A recent "make driver conform to spec" change
broke on deployed hardware. Make new behavior optional, rather than
default, turning it on only for specific embedded platforms that
need this.
Everybody else runs in the famous "non conformant but working" mode.
2) pata_cmd64x, pata_legacy cleanups
3) new Intel SATA PCI IDs
4) misc minor vendor feature additions
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
pata_cmd64x: implement sff_irq_check() method
pata_cmd64x: implement sff_irq_clear() method
pata_cmd64x: use interrupt status from MRDMODE register
pata_cmd64x: turn string of *if* statements into *switch*
drivers/ata/pata_mpc52xx.c: clean up error handling code
ahci_platform: add STRICT_AHCI platform type
ahci: move AHCI_HFLAGS() macro to ahci.h
ahci: add AHCI_HFLAG_DELAY_ENGINE host flag
sata_fsl: add support for interrupt coalsecing feature
ata/pata_arasan_cf: Add Hibernation support
pata_legacy: correctly mask recovery field for HT6560B
ata_piix: IDE-mode SATA patch for Intel Lynx Point DeviceIDs
ahci: AHCI-mode SATA patch for Intel Lynx Point DeviceIDs
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Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
SCSI updates from James Bottomley:
"The update includes the usual assortment of driver updates (lpfc,
qla2xxx, qla4xxx, bfa, bnx2fc, bnx2i, isci, fcoe, hpsa) plus a huge
amount of infrastructure work in the SAS library and transport class
as well as an iSCSI update. There's also a new SCSI based virtio
driver."
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (177 commits)
[SCSI] qla4xxx: Update driver version to 5.02.00-k15
[SCSI] qla4xxx: trivial cleanup
[SCSI] qla4xxx: Fix sparse warning
[SCSI] qla4xxx: Add support for multiple session per host.
[SCSI] qla4xxx: Export CHAP index as sysfs attribute
[SCSI] scsi_transport: Export CHAP index as sysfs attribute
[SCSI] qla4xxx: Add support to display CHAP list and delete CHAP entry
[SCSI] iscsi_transport: Add support to display CHAP list and delete CHAP entry
[SCSI] pm8001: fix endian issue with code optimization.
[SCSI] pm8001: Fix possible racing condition.
[SCSI] pm8001: Fix bogus interrupt state flag issue.
[SCSI] ipr: update PCI ID definitions for new adapters
[SCSI] qla2xxx: handle default case in qla2x00_request_firmware()
[SCSI] isci: improvements in driver unloading routine
[SCSI] isci: improve phy event warnings
[SCSI] isci: debug, provide state-enum-to-string conversions
[SCSI] scsi_transport_sas: 'enable' phys on reset
[SCSI] libsas: don't recover end devices attached to disabled phys
[SCSI] libsas: fixup target_port_protocols for expanders that don't report sata
[SCSI] libsas: set attached device type and target protocols for local phys
...
Implement sff_irq_check() method for both old and new chips.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Convert the driver's two bmdma_stop() methods into sff_irq_clear() methods --
they shouldn't have been bothering with clearing interrupts from the very start;
the driver will now use the standard bmdma_stop() method implementation (where
appropriate).
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Start using faster version of the bmdma_stop() method for the PCI0646U and newer
chips that have the duplicate interrupt status bits in the I/O mapped MRDMODE
register. Use the old, slow bmdma_stop() method on the older chips, taking into
account that the interrupt bits are not coupled to DMA and that's enough to read
the register to clear the interrupt (on the older chips). Determine what method
to use at the driver load time.
Fix kernel-doc of the bmdma_stop() methods, while at it.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Convert string of the *if* statements all checking 'pdev->revision' into more
natural *switch* statement. While at it, somewhat clarify the comments there...
Increment the driver version, accounting for the patches that neglected to do
this in the past.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch makes a number of changes with respect to the error-handling
code:
* Remove cleanup calls for the devm functions in both the error handling
code and the remove function. This cleanup is done automatically.
* The previous change simplifies the cleanup code at the end of the
function such that there is nothing to do on the failure of the call to
devm_ioremap. So it is changed to just return directly.
* There is no need for the ifs in the cleanup code at the end of the
function, because in each case the cleanup needed is statically
known. Drop the ifs, add new err labels, and drop the initializations of
the tested variables to NULL.
* Change the call to request_irq to a call to devm_request_irq, so that it
is cleaned up on exit.
* Cause the return value of devm_request_irq to go into the returned
variable rv rather than the unused variable ret. Drop ret.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Some platforms need to make use of the AHCI_HFLAG_DELAY_ENGINE flag.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
We will need this macro in both ahci.c and ahci_platform.c, so just move it
to the header.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
The following commit was intended to fix problems with specific AHCI
controller(s) that would become bricks if the AHCI specification was not
followed strictly (that is, if ahci_start_engine() was called while the
controller was in the wrong state):
commit 7faa33da9b
ahci: start engine only during soft/hard resets
However, some devices currently have issues with that fix, so we must
implement a flag that delays the ahci_start_engine() call only for specific
controllers.
This commit simply introduces the flag, without enabling it in any driver.
Note that even when AHCI_HFLAG_DELAY_ENGINE is not enabled, this patch does
not constitue a full revert to commit 7faa33da; there is still a change in
behavior to the ahci_port_suspend() failure path.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
Adds support for interrupt coalescing feature to reduce interrupt events.
Provides a mechanism of adjusting coalescing count and timeout tick by sysfs
at runtime, so that tradeoff of latency and CPU load can be made depending
on different applications.
Signed-off-by: Qiang Liu <qiang.liu@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds in Hibernation related callbacks. Also we don't really need to
free DMA channel on suspend.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
According to the HT6560H datasheet, the recovery timing field is 4-bit wide,
with a value of 0 meaning 16 cycles. Correct obvious thinko in the recovery
field mask.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the IDE-mode SATA DeviceIDs for the Intel Lynx Point PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the AHCI-mode SATA DeviceIDs for the Intel Lynx Point PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
libsas ata error handling is already async but this does not help the
scan case. Move initial link recovery out from under host->scan_mutex,
and delay synchronization with eh until after all port probe/recovery
work has been queued.
Device ordering is maintained with scan order by still calling
sas_rphy_add() in order of domain discovery.
Since we now scan the domain list when invoking libata-eh we need to be
careful to check for fully initialized ata ports.
Acked-by: Jack Wang <jack_wang@usish.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Link resets leave ata affiliations intact, so arrange for libsas to make
an effort to avoid dropping the device due to a slow-to-recover link.
Towards this end carry out reset in the host workqueue so that it can
check for ata devices and kick the reset request to libata. Hard
resets, in contrast, bypass libata since they are meant for associating
an ata device with another initiator in the domain (tears down
affiliations).
Need to add a new transport_sas_phy_reset() since the current
sas_phy_reset() is a utility function to libsas lldds. They are not
prepared for it to loop back into eh.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
pata_at91 driver is broken since faee0cc:
"make smc register base soc independent"
Fix it with newly introduced SMC accessors.
The overall action of removal of at91_sys_read/write will allow
to use the pata_at91 on a single zImage kernel.
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: linux-ide@vger.kernel.org
BF54x on-chip ATAPI controller allows maximum 0x1fffe bytes to be transfered
in one ATAPI transfer. So, set the max sg_tablesize to 4.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Configure the FSL SATA controller to the preferred, enterprise mode.
Signed-off-by: Yutaka Ando <r46913@freescale.com>
Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com>
CC: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
module_param(bool) used to counter-intuitively take an int. In
fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy
trick.
It's time to remove the int/unsigned int option. For this version
it'll simply give a warning, but it'll break next kernel version.
Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
* 'upstream-linus' of git://github.com/jgarzik/libata-dev:
ahci: support the STA2X11 I/O Hub
pata_bf54x: fix BMIDE status register emulation
ata: add ata port hibernate callbacks
ata: update ata port's runtime status during system resume
[SCSI] runtime resume parent for child's system-resume
ahci: platform support for suspend/resume
libata-core: kill duplicate statement in ata_do_set_mode()
pata_of_platform: remove direct dependency on OF_IRQ
SATA/PATA: convert drivers/ata/* to use module_platform_driver()
pata_cs5536: forward port changes from cs5536
libata-sff: use ATAPI_{COD|IO}
ata: add ata port runtime PM callbacks
ata: add ata port system PM callbacks
[SCSI] sd: check runtime PM status in sd_shutdown
[SCSI] check runtime PM status in system PM
[SCSI] add flag to skip the runtime PM calls on the host
ata: make ata port as parent device of scsi host
ahci: start engine only during soft/hard resets
This adds support for new features, and contains stuff from most
platforms. A number of these patches could have fit into other
branches, too, but were small enough not to cause too much
confusion here.
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Merge tag 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
New feature development
This adds support for new features, and contains stuff from most
platforms. A number of these patches could have fit into other
branches, too, but were small enough not to cause too much
confusion here.
* tag 'devel' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (28 commits)
mfd/db8500-prcmu: remove support for early silicon revisions
ARM: ux500: fix the smp_twd clock calculation
ARM: ux500: remove support for early silicon revisions
ARM: ux500: update register files
ARM: ux500: register DB5500 PMU dynamically
ARM: ux500: update ASIC detection for U5500
ARM: ux500: support DB8520
ARM: picoxcell: implement watchdog restart
ARM: OMAP3+: hwmod data: Add the default clockactivity for I2C
ARM: OMAP3: hwmod data: disable multiblock reads on MMC1/2 on OMAP34xx/35xx <= ES2.1
ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP4
ARM: OMAP: USB: EHCI and OHCI hwmod structures for OMAP3
ARM: OMAP: hwmod data: Add support for AM35xx UART4/ttyO3
ARM: Orion: Remove address map info from all platform data structures
ARM: Orion: Get address map from plat-orion instead of via platform_data
ARM: Orion: mbus_dram_info consolidation
ARM: Orion: Consolidate the address map setup
ARM: Kirkwood: Add configuration for MPP12 as GPIO
ARM: Kirkwood: Recognize A1 revision of 6282 chip
ARM: ux500: update the MOP500 GPIO assignments
...
The AHCI controller found in the STA2X11 chip uses BAR number 0
instead of 5. Also, the chip's fixup code sets a special DMA mask
for all of its PCI functions, and the mask must be preserved here.
Signed-off-by: Alessandro Rubini <rubini@gnudd.com>
Acked-by: Giancarlo Asnaghi <giancarlo.asnaghi@st.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The author of this driver clearly wasn't familiar with the BMIDE specification
(also known as SFF-8038i) when he implemented the bmdma_status() method: first,
the interrupt bit of the BMIDE status register corresponds to nothing else but
INTRQ signal (ATAPI_DEV_INT here); second, the error bit is only set if the
controller encounters issue doing the bus master transfers, not on the IDE DMA
burst termination interrupts like here (moreover, setting the error bit doesn't
cause an interrupt). We now need to disable all those unused interrupts...
(The only thing I couldn't figure out is how to flush the FIFO to memory once
the interrupt happens as required by the mentioned spec.)
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The ata port is brought back to full power state during system resume.
So its runtime PM status will have to be updated to reflect
the actual post-system sleep status.
This also fixes below warning during system suspend/resume.
WARNING: at /work/linux/drivers/ata/libata-eh.c:4034
ata_scsi_port_error_handler+0x89/0x557()
4034 WARN_ON(!(ap->pflags & ATA_PFLAG_SUSPENDED));
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add platform hooks for custom suspend() and resume() functions. The
generic suspend/resume code in drivers/ata/ahci_platform.c is adapted
from the PCI version in drivers/ata/ahci.c.
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit b3a706014e (libata: Add a
drivers/ide style DMA disable) neglected to remove the line in
ata_do_set_mode() it has obviously made useless/duplicated. Do this
now, and make a line added back then wrapped properly...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
CONFIG_OF_IRQ is not available on some platforms and using of_irq_*
breaks the build. Since resources are already populated in the platform
device, get the irq from there instead.
Reported-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch converts the drivers in drivers/ata/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.
Cc: Viresh Kumar <viresh.kumar@st.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Arnaud Patard <arnaud.patard@rtp-net.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Sylvain Munaut <tnt@246tNt.com>
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Marek Vasut <marek.vasut@gmail.com>
Cc: Florian Fainelli <florian@openwrt.org>
Cc: Mark Miesfeld <mmiesfeld@amcc.com>
Cc: Ashish Kalra <ashish.kalra@freescale.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Fix cable detection to also account for the slave device cable bit.
* Disable UDMA when programming MWDMA in cs5536_set_dmamode().
* Don't change UDMA settings in cs5536_set_piomode().
* Add cs5536_program_dtc() helper.
* Cleanup and uninline cs5536_[read,write]() methods.
Cc: Martin K. Petersen <mkp@mkp.net>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
atapi_pio_bytes() uses bare numbers for the ATAPI interrupt reason bits despite
these are #define'd in <linux/ata.h>.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add ata port runtime suspend/resume/idle callbacks.
Set ->eh_noresume to skip the runtime PM calls on scsi host
in the error handler to avoid dead lock.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Change ata_host_request_pm to ata_port_request_pm which performs
port suspend/resume.
Add ata port type driver which implements port PM callbacks.
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Currently, the device tree of ata port and scsi host looks as below,
/sys/devices/pci0000:00/0000:00:1f.2 (ahci controller)
|-- ata1 (ata port)
|-- host0 (scsi host)
|-- target0:0:0 (scsi target)
|-- 0:0:0:0 (disk)
This patch makes ata port as parent device of scsi host, then it becomes
/sys/devices/pci0000:00/0000:00:1f.2 (ahci controller)
|-- ata1 (ata port)
|-- host0 (scsi host)
|-- target0:0:0 (scsi target)
|-- 0:0:0:0 (disk)
With this change, the ata port runtime PM is easier.
For example, the ata port runtime suspend will happen as,
disk suspend --> scsi target suspend --> scsi host suspend --> ata port
suspend.
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This is another attempt at fixing the same problem that 270dac35c2
(libata: ahci_start_engine compliant to AHCI spec) tried to solve.
Unfortunately, 270dac35c2 created regressions for a lot more common
controllers and got reverted.
This specific AHCI IP block becomes a brick if the DMA engine is
started while DRQ is set. It is not possible to avoid the condition
completely but the most common occurrence is caused by spurious use of
ahci_start_engine() from ahci_start_port() during init sequence.
DMA engine is started after both soft and hard resets and
ahci_start_port() is always followed by resets, so there is no reason
to start DMA engine from ahci_start_port().
This patch removes ahci_start_engine() invocation from
ahci_start_port(). This change makes failure path of
ahci_port_suspend() leave engine stopped without following resets.
This is resolved by replacing ahci_start_port() call with
ata_port_freeze() which forces resets afterwards, which is the better
behavior anyway.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Brian Norris <computersforpeace@gmail.com>
Reported-by: Jian Peng <jipeng2005@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Conflicts:
arch/arm/mach-at91/at91cap9.c
arch/arm/mach-at91/at91sam9260.c
arch/arm/mach-at91/at91sam9261.c
arch/arm/mach-at91/at91sam9263.c
arch/arm/mach-at91/at91sam9g45.c
arch/arm/mach-at91/at91sam9rl.c
arch/arm/mach-exynos/cpu.c
arch/arm/mach-shmobile/board-kota2.c
This resolves a bunch of conflicts between the arm-soc tree
and changes from the arm tree that have gone upstream.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Use an getter function in plat-orion/addr-map.c to get the address map
structure, rather than pass it to drivers in the platform_data
structures. When the drivers are built for none orion platforms, a
dummy function is provided instead which returns NULL.
Signed-off-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Michael Walle <michael@walle.cc>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
fix these errors:
drivers/ata/libata-sff.c:2538:3: error: implicit declaration of function
'ata_pci_bmdma_prepare_host'
drivers/ata/libata-sff.c:2549:40: error: 'ata_bmdma_interrupt'
undeclared (first use in this function)
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The change in commit 904c04feaf "ahci_platform: Add the board_ids..."
doesn't work for the DT probing case as platform_get_device_id returns
NULL. Pick the default ahci_port_info in this case.
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Anton Vorontsov <cbouatmailru@gmail.com>
Cc: Richard Zhu <richard.zhu@linaro.org>
Cc: linux-ide@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Drivers should not use NO_IRQ; moreover, some architectures don't
have it nowadays. '0' is the 'no irq' case.
Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Reenable sending SRST to devices connected behind a Sil3726 PMP.
This allow staggered spinups and handles drives that spins up slowly.
While the drives spin up, the PMP will not accept SRST.
Most controller reissues the reset until the drive is ready, while
some [Sil3124] returns an error.
In ata_eh_error, wait 10s before reset the ATA port and try again.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use dev_get_platdata() to retrieve the struct ahci_platform_data data
from the platform.
Signed-off-by: JiSheng Zhang <jszhang3@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add the documentation of parameters of ata_change_queue_depth to silence the warning of make xmldocs
Signed-off-by: Marcos paulo de Souza <marcos.mage@gmail.com>
Acked-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux: (230 commits)
Revert "tracing: Include module.h in define_trace.h"
irq: don't put module.h into irq.h for tracking irqgen modules.
bluetooth: macroize two small inlines to avoid module.h
ip_vs.h: fix implicit use of module_get/module_put from module.h
nf_conntrack.h: fix up fallout from implicit moduleparam.h presence
include: replace linux/module.h with "struct module" wherever possible
include: convert various register fcns to macros to avoid include chaining
crypto.h: remove unused crypto_tfm_alg_modname() inline
uwb.h: fix implicit use of asm/page.h for PAGE_SIZE
pm_runtime.h: explicitly requires notifier.h
linux/dmaengine.h: fix implicit use of bitmap.h and asm/page.h
miscdevice.h: fix up implicit use of lists and types
stop_machine.h: fix implicit use of smp.h for smp_processor_id
of: fix implicit use of errno.h in include/linux/of.h
of_platform.h: delete needless include <linux/module.h>
acpi: remove module.h include from platform/aclinux.h
miscdevice.h: delete unnecessary inclusion of module.h
device_cgroup.h: delete needless include <linux/module.h>
net: sch_generic remove redundant use of <linux/module.h>
net: inet_timewait_sock doesnt need <linux/module.h>
...
Fix up trivial conflicts (other header files, and removal of the ab3550 mfd driver) in
- drivers/media/dvb/frontends/dibx000_common.c
- drivers/media/video/{mt9m111.c,ov6650.c}
- drivers/mfd/ab3550-core.c
- include/linux/dmaengine.h
A pending cleanup will mean that module.h won't be implicitly
everywhere anymore. Make sure the modular drivers in the ide dir
are actually calling out for <module.h> explicitly in advance.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
They were getting this implicitly by an include of module.h
from device.h -- but we are going to clean that up and break
that include chain, so include export.h explicitly now.
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Rename 'idetm_port' and 'idetm_data' variables to 'master_port'
and 'master_data' respectively to match register naming used in
efar_set_dmamode() and in ata_piix.c.
Fix efar_set_piomode() documentation while at it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Besides making things noticably simpler it results in ~2% decrease in
the driver LOC count and also ~2% decrease in the driver binary size
(as measured on x86-32).
Fix piix_set_piomode() documentation while at it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Set SITRE (separate slave timing register) bit also in master-only
configurations to match other PIIX-alike drivers and make further
changes easier.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Always use ata_sff_data_xfer32() in ata_sff_data_xfer_noirq()
so the latter can be also used for host controllers supporting
32-bit PIO operations.
It is a completely safe thing to do because if 32-bit PIO is
not supported or enabled ata_sff_data_xfer32() will fallback
to a standard method.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fixes IDE -> libata regression.
There shouldn't be any problems with it as corresponding IDE's host
driver (aec62xx) has been supporting PCI Power Management since
Oct 10 2008 (commit feb22b7f "ide: add proper PCI PM support (v2)")
and IDE PM since Jun 14 2003 (patch v2.5.73 "ide: Power Management").
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fixes IDE -> libata regression.
There shouldn't be any problems with it as corresponding IDE's host
driver (sl82c105) has been supporting PCI Power Management since
Oct 10 2008 (commit feb22b7f "ide: add proper PCI PM support (v2)")
and IDE PM since Jun 14 2003 (patch v2.5.73 "ide: Power Management").
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fixes IDE -> libata regression.
There shouldn't be any problems with it as corresponding IDE's host
driver (pdc202xx_new) has been supporting PCI Power Management since
Oct 10 2008 (commit feb22b7f "ide: add proper PCI PM support (v2)")
and IDE PM since Jun 14 2003 (patch v2.5.73 "ide: Power Management").
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add controller type field to struct legacy_data and then use it
to merge together all ->set_piomode methods for QDI controllers.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
QDI65x0 controllers are fully supported by pata_legacy driver
so remove no longer needed pata_qdi driver.
Leave PATA_QDI config option for compatibility reasons and teach
pata_legacy to preserve the old behavior of pata_qdi driver.
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Rename 'idetm_port' and 'idetm_data' variables to 'master_port'
and 'master_data' respectively to match register naming used in
it8213_set_dmamode() and in ata_piix.c.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fixes IDE -> libata regression.
IDE's it8213 host driver has been supporting those modes
(per official documentation) since the initial driver's merge
on Feb 7 2007 (commit 9c6712c0 "ide: add it8213 IDE driver").
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This is similar change as commit 60c3be3 ("ata_piix: parallel scanning
on PATA needs an extra locking") for ata_piix host driver.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Fix via_init_one() to enable clock on 66 MHz devices
(bug introduced in commit 460f531 "pata_via: store UDMA masks
in via_isa_bridges table").
* Factor out common code from via_[re]init_one() to via_fixup().
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
XFER_SW_DMA_0 mode should be excluded from the extended cycle timing
computations.
Acked-by: Alan Cox <alan@linux.intel.com>
Noticed-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use standard ata_cable_80wire() method for the cable detection,
as a bonus this allows us to use the default ->prereset method.
Acked-by: Kou Ishizaki <kou.ishizaki@toshiba.co.jp>
Acked-by: Akira Iguchi <akira2.iguchi@toshiba.co.jp>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The suspend()/resume() methods already get the right 'struct device' to get the
driver data from -- there's no need to get to the 'struct platform_device' that
contains that 'struct device' just to call dev_get_drvdata()...
Acked-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fixes PCI access before PCI resources are allocated.
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Factor out common code from serverworks_[re]init_one() to
serverworks_fixup().
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Merge identical cable routines for Dell and Sun systems into
common oem_cable() one.
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cosmetic fix but thanks to it pata_ali's DMI table now matches
alim15x3's one.
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Core libata code takes care of it nowadays.
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Factor out common code from cmd64x_[re]init_one() to cmd64x_fixup().
Remove stale comment and fix a minor CodingStyle issue while at it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Factor out code for finding the register programming information
from hpt366_set_mode() to hpt36x_find_mode().
This makes pata_hpt366 driver more similar to pata_{37x,3x2n} ones.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Unify ->prereset methods for ATP850 and ATP86x[R] chipsets.
* Fix ->prereset documentation while at it.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Turn both helpers (which are used only during LLDs initialization
time and thus are not performance sensitive) into wrappers around
the new ata_pci_init_one() function, this cuts 20 LOC and saves
~1.1k of the output code size (x86-64):
text data bss dec hex filename
21392 0 19 21411 53a3 drivers/ata/libata-sff.o.before
20256 0 19 20275 4f33 drivers/ata/libata-sff.o.after
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
.. and also a module description while at it.
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fix documentation for sil680_sel[reg,dev]() and sil680_set_[pio,dma]mode().
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Since commit [c58543c8: genirq: Run irq handlers with interrupts disabled],
We run all interrupt handlers with interrupts disabled
and we even check and yell when an interrupt handler
returns with interrupts enabled (see commit [b738a50a:
genirq: Warn when handler enables interrupts]).
So now this flag is a NOOP and can be removed.
Signed-off-by: Yong Zhang <yong.zhang0@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds missing #includes, makes the driver selectable on
non-PPC OF-enabled platforms and fixes property value accesses to
be correct in Little Endian system.
Cc: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Remove a lot of ' ' (double spaces) as well as ensuring use of tabs vs.
spaces is appropriate and consistent.
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This pushes timing and other values into preinitialized read-only data
sections rather than being inlined into the code. None of these
functions are called more than a handful of times, so reducing code size
makes sense.
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This ports the timing values over from the old IDE driver into the new
PATA-based one. The comment was lying when it stated the old driver was
not MWDMA capable.
Boot tested on actual hardware using 'libata.force=mwdma2'.
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This mirrors a very old commit (3160d5416f, "sis5513: add
->udma_filter method for chipset_family >= ATA_133") to the old sis5513
IDE driver that prevents certain setups from working.
UDMA6 (ATA/133) is not supported on some chipsets and we need to ensure
this mode is not chosen even if a connected drive supports it. Port this
old patch forward to the new PATA driver to ensure UDMA5 is the highest
mode used if that is what is supported.
Kernel bugzilla #41582.
Reviewed-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This is similar to the existing sis_old_port_base() method. We do this
same calculation and logic in multiple places (with one more to come in
a future patch), so extracting it into a method makes sense.
Reviewed-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Dan McGee <dpmcgee@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On imx53 AHCI, soft reset fails with IPMS set when PMP
is enabled but SATA HDD/ODD is connected to SATA port,
do soft reset again to port 0.
So the 'ahci_pmp_retry_srst_ops' is required when imx53
ahci is present.
Signed-off-by: Richard Zhu <richard.zhu@linaro.org>
Acked-by: Eric Miao <eric.miao@linaro.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Reduce data by using const.
$ size drivers/ata/sata_sil24.o*
text data bss dec hex filename
12764 614 2688 16066 3ec2 drivers/ata/sata_sil24.o.new
12320 1058 2688 16066 3ec2 drivers/ata/sata_sil24.o.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This quirk patch fixes one kind of bug inside some Intel Sandybridge
chipsets, see reports from
https://bugzilla.kernel.org/show_bug.cgi?id=40592.
Many guys also have reported the problem before:
https://bugs.launchpad.net/bugs/737388https://bugs.launchpad.net/bugs/794642https://bugs.launchpad.net/bugs/782389
......
With help from Tejun, the problem is found to be caused by 32bit PIO
mode, so introduce the quirk patch to disable 32bit PIO on SATA piix
for some Sandybridge CPT chipsets.
Seth also tested the patch on all five affected chipsets
(pci device ID: 0x1c00, 0x1c01, 0x1d00, 0x1e00, 0x1e01), and found
the patch does fix the problem.
Tested-by: Heasley, Seth <seth.heasley@intel.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Acked-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
ata_sff_data_xfer[32]() use pad area if the transfer size isn't
multiple of transfer size; however, this area wasn't cleared and
garbage data in pad area could be transferred to the device. Make
sure the pad area is cleared.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Lei Ming <tom.leiming@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The driver uses dev_get_drvdata() to get to the driver data for the
platform and PCI devices, while the corresponding wrappers exists for
them -- in one case it even declares an otherwise unneeded variable
to do that. Switch to using the {platform|pci}_get_drvdata() instead.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
mv_platfrom_probe() forgets to call clk_disable() and clk_put() iff
ata_host_activate() fails...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Pass queue_depth change requests to libata, and prevent queue_type
changes for ATA devices.
Otherwise:
1/ we do not honor the libata specific restrictions on the queue depth
2/ libsas drivers that do not set sdev->tagged_supported are unable to
change the queue_depth of ata devices via sysfs
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Currently, error handling code in this function calls the function
sata_dwc_port_stop, but this function has essentially no effect if hsdevp
has not been stored in ap, which is the case throughout this function. The
only effect is to print a debugging message including ap->print_id.
The code is rewritten to not call sata_dwc_port_stop, but instead to jump
to a local label that prints the original error message and the print_id
information. In the case where hsdevp has been already allocated (but not
yet stored in ap), this value is freed as well.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@exists@
local idexpression x;
statement S,S1;
expression E;
identifier fl;
expression *ptr != NULL;
@@
x = \(kmalloc\|kzalloc\|kcalloc\)(...);
...
if (x == NULL) S
<... when != x
when != if (...) { <+...kfree(x)...+> }
when any
when != true x == NULL
x->fl
...>
(
if (x == NULL) S1
|
if (...) { ... when != x
when forall
(
return \(0\|<+...x...+>\|ptr\);
|
* return ...;
)
}
)
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Add basic support for pata on iMX. It has been tested only on imx51.
SDMA support will probably be added later so this version supports only
PIO.
v2:
- enable only when needed IORDY
- use dev_get_drvdata
v3:
- add missing clk_put() calls
- use platform_get_irq()
- fix resume code to avoid disabling IORDY on resume
v4:
- Remove EXPERIMENTAL and switch to depends on ARCH_MXC
- Use devm_kzalloc()
- make clock a must-have
- Use only 1 ioremap
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On AVERATEC 3200, pata_via causes memory corruption with ATAPI DMA,
which often leads to random kernel oops. The cause of the problem is
not well understood yet and only small subset of machines using the
controller seem affected. Blacklist ATAPI DMA on the machine.
Signed-off-by: Tejun Heo <tj@kernel.org>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=11426
Reported-and-tested-by: Jim Bray <jimsantelmo@gmail.com>
Cc: Alan Cox <alan@linux.intel.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Init 'serror' to silence the following warning:
drivers/ata/sata_sil.c: In function ‘sil_interrupt’:
drivers/ata/sata_sil.c:453:14: warning: ‘serror’ may be used uninitialized in
this function [-Wuninitialized]
This is not a 'can never happen' but is nonetheless extremely unlikely.
The easiest and cleanest warning fix is simply to init the var,
rather than worry about marking the var uninit-ok.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (28 commits)
ACPI: delete stale reference in kernel-parameters.txt
ACPI: add missing _OSI strings
ACPI: remove NID_INVAL
thermal: make THERMAL_HWMON implementation fully internal
thermal: split hwmon lookup to a separate function
thermal: hide CONFIG_THERMAL_HWMON
ACPI print OSI(Linux) warning only once
ACPI: DMI workaround for Asus A8N-SLI Premium and Asus A8N-SLI DELUX
ACPI / Battery: propagate sysfs error in acpi_battery_add()
ACPI / Battery: avoid acpi_battery_add() use-after-free
ACPI: introduce "acpi_rsdp=" parameter for kdump
ACPI: constify ops structs
ACPI: fix CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS
ACPI: fix 80 char overflow
ACPI / Battery: Resolve the race condition in the sysfs_remove_battery()
ACPI / Battery: Add the check before refresh sysfs in the battery_notify()
ACPI / Battery: Add the hibernation process in the battery_notify()
ACPI / Battery: Rename acpi_battery_quirks2 with acpi_battery_quirks
ACPI / Battery: Change 16-bit signed negative battery current into correct value
ACPI / Battery: Add the power unit macro
...
Cleanup sff_pio_task_link when a command is cancel while the
pio_task thread has been scheduled.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch adds an additional SATA RAID controller DeviceID for the Intel Panther Point PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The missing comma causes the wrong RAID type to be displayed.
Introduced by commit 963e4975c6 three
years ago, odd that nobody noticed before.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Fixed hsdev memleak on sata_dwc_probe() error.
As dma_dwc_exit() can be called multiple times without sata_dma_regs and
irq_dma changes, it might lead to double free on sequential
dma_dwc_exit() calls. So, zero these fields after free calls.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Like e65cc194f7 this patch enables 64bit DMA
for the AHCI SATA controller of a board that has the SB600 southbridge. In
this case though we're enabling 64bit DMA for the Asus M3A motherboard. It
is a new enough board that all of the BIOS releases since the initial
release (0301 from 2007-10-22) work correctly with 64bit DMA enabled.
Signed-off-by: Mark Nelson <mdnelson8@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Link resume failure in itself isn't an error condition and may happen
regularly depending on hardware configuration. Reporting it as
KERN_ERR makes the condition unnecessarily prominent (e.g. reported
during boot). Use KERN_WARNING instead.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: David Shaw <dshaw@jabberwocky.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
ahci_sb600_softreset was in ahci.c. This function is used
to fix soft reset failure and renames as ahci_pmp_retry_softreset
in libahci.c.
Signed-off-by: Yuan-Hsin Chen <yhchen@faraday-tech.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
libata EH intentionally left a port frozen if it failed
ata_eh_reset(). The intention was avoiding continuous loop of resets
when the controller or attached device is flaky and reporting spurious
hotplug events. Once port enters this state, it can be recovered with
manual rescan, which seemed reasonable.
However, outside of my convoluted test setup, there have been very few
reports justifying this choice while there have been more cases where
the automatic freezing of the port after hotplug attempt of a faulty
device caused confusion and led to unnecessary resets.
This patch changes the behavior so that the port is thawed after reset
failure. This change doesn't necessarily solve but makes it easier
and more intuitive to work around hotplug related problems
(ie. re-pluggin or power cycling the device) as reported in the
followings.
https://bugzilla.kernel.org/show_bug.cgi?id=34712http://thread.gmane.org/gmane.linux.kernel/1123265/focus=49548
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Reartes Guillermo <rtguille@gmail.com>
Reported-by: Bruce Stenning <b.stenning@indigovision.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Use normal debugging path for dynamic debug capability.
Convert dev_printk(KERN_DEBUG to dev_dbg(
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Use a single mechanism to show driver version.
Reduces text a tiny bit too.
Remove uses of static int printed_version
Add and use ata_print_version(const struct device *, const char *ver)
and ata_print_version_once.
$ size drivers/ata/built-in.*
text data bss dec hex filename
544969 73893 116584 735446 b38d6 drivers/ata/built-in.allyesconfig.ata.o
543870 73893 116592 734355 b34ad drivers/ata/built-in.allyesconfig.print_once.o
141328 14689 4220 160237 271ed drivers/ata/built-in.defconfig.ata.o
141212 14689 4220 160121 27179 drivers/ata/built-in.defconfig.print_once.o
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Saves a bit of text as the call takes fewer args.
Coalesce a few formats.
Convert a few bare printks to pr_cont.
$ size drivers/ata/built-in.o*
text data bss dec hex filename
558429 73893 117864 750186 b726a drivers/ata/built-in.o.allyesconfig.new
559574 73893 117888 751355 b76fb drivers/ata/built-in.o.allyesconfig.old
149567 14689 4220 168476 2921c drivers/ata/built-in.o.defconfig.new
149851 14689 4220 168760 29338 drivers/ata/built-in.o.defconfig.old
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Structs battery_file, acpi_dock_ops, file_operations,
thermal_cooling_device_ops, thermal_zone_device_ops, kernel_param_ops
are not changed in runtime. It is safe to make them const.
register_hotplug_dock_device() was altered to take const "ops" argument
to respect acpi_dock_ops' const notion.
Signed-off-by: Vasiliy Kulikov <segoon@openwall.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
It's not so much an error as a warning about normal Marvell crazines.
So don't use KERN_ERR that ends up spamming the console even in quiet
mode, it's not _that_ critical.
Explained by Jeff:
"Long explanation, it's a mess:
Marvell took standard AHCI, and bastardized it to include a weird mode
whereby PATA devices appear inside the AHCI DMA and interrupt
infrastructure you're familiar with.
So, PATA devices appear via pata_marvell driver, using basic legacy
IDE programming interface. But SATA devices, which might also be
attached to this chip, either work in under-performing mode or
simply don't work at all (e.g. newer 6 Gbps devices or port
multiplier attachments, NCQ, ...)
On the other hand, 'ahci' driver loads and works with the chip's
attached SATA devices quite beautifully, but is completely unable to
drive any attached PATA devices, due to the Marvell-specific
PATA-under-AHCI interface.
The "masking port_map 0x7 -> 0x3" message is the ahci driver "hiding"
the PATA port(s) from itself, making sure it will only drive the SATA
ports it knows how to drive."
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch enables support for Marvell IDE PATA controllers found on
Asus P8P67LE motherboard.
The formatting has been corrected and I also received a report from two
users of this motherboard that the patch works.
Signed-off-by: Paweł Drewniak <czajernia@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On 16.06.2011 [08:28:39 -0500], Brian King wrote:
> On 06/16/2011 02:51 AM, Tejun Heo wrote:
> > On Wed, Jun 15, 2011 at 04:34:17PM -0700, Nishanth Aravamudan wrote:
> >>> That looks like the right thing to do. For ipr's usage of
> >>> libata, we don't have the concept of a port frozen state, so this flag
> >>> should really never get set. The alternate way to fix this would be to
> >>> only set ATA_PFLAG_FROZEN in ata_port_alloc if ap->ops->error_handler
> >>> is not NULL.
> >>
> >> It seemed like ipr is as you say, but I wasn't sure if it was
> >> appropriate to make the change above in the common libata-scis code or
> >> not. I don't want to break some other device on accident.
> >>
> >> Also, I tried your suggestion, but I don't think that can happen in
> >> ata_port_alloc? ata_port_alloc is allocated ap itself, and it seems like
> >> ap->ops typically gets set only after ata_port_alloc returns?
> >
> > Maybe we can test error_handler in ata_sas_port_start()?
>
> Good point. Since libsas is converted to the new eh now, we would need to have
> this test.
Commit 7b3a24c57d ("ahci: don't enable
port irq before handler is registered") caused a regression for CD-ROMs
attached to the IPR SATA bus on Power machines:
ata_port_alloc: ENTER
ata_port_probe: ata1: bus probe begin
ata1.00: ata_dev_read_id: ENTER
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40)
ata1.00: ata_dev_read_id: ENTER
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40)
ata1.00: limiting speed to UDMA7:PIO5
ata1.00: ata_dev_read_id: ENTER
ata1.00: failed to IDENTIFY (I/O error, err_mask=0x40)
ata1.00: disabled
ata_port_probe: ata1: bus probe end
scsi_alloc_sdev: Allocation failure during SCSI scanning, some SCSI devices might not be configured
The FROZEN flag added in that commit is only cleared by the new EH code,
which is not used by ipr. Clear this flag in the SAS code if we don't
support new EH.
Reported-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
regardless of firmware revision
It's unlikely NOSETXFER works for a revision of drive but doesn't for
another and pioneer doesn't seem to be fixing firmwares for the
affected drives. Apply NOSETXFER to the affected pioneer drives
regardless of firmware revision.
http://article.gmane.org/gmane.linux.ide/49734
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: fl-00@gmx.de
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
To work around controllers which can't properly plug events while
reset, ata_eh_reset() clears error states and ATA_PFLAG_EH_PENDING
after reset but before RESET is marked done. As reset is the final
recovery action and full verification of devices including onlineness
and classfication match is done afterwards, this shouldn't lead to
lost devices or missed hotplug events.
Unfortunately, it forgot to thaw the port when clearing EH_PENDING, so
if the condition happens after resetting an empty port, the port could
be left frozen and EH will end without thawing it, making the port
unresponsive to further hotplug events.
Thaw if the port is frozen after clearing EH_PENDING. This problem is
reported by Bruce Stenning in the following thread.
http://thread.gmane.org/gmane.linux.kernel/1123265
stable: I think we should weather this patch a bit longer in -rcX
before sending it to -stable. Please wait at least a month
after this patch makes upstream. Thanks.
-v2: Fixed spelling in the comment per Dave Howorth.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Bruce Stenning <b.stenning@indigovision.com>
Cc: stable@kernel.org
Cc: Dave Howorth <dhoworth@mrc-lmb.cam.ac.uk>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
* 'for-2.6.40/core' of git://git.kernel.dk/linux-2.6-block: (40 commits)
cfq-iosched: free cic_index if cfqd allocation fails
cfq-iosched: remove unused 'group_changed' in cfq_service_tree_add()
cfq-iosched: reduce bit operations in cfq_choose_req()
cfq-iosched: algebraic simplification in cfq_prio_to_maxrq()
blk-cgroup: Initialize ioc->cgroup_changed at ioc creation time
block: move bd_set_size() above rescan_partitions() in __blkdev_get()
block: call elv_bio_merged() when merged
cfq-iosched: Make IO merge related stats per cpu
cfq-iosched: Fix a memory leak of per cpu stats for root group
backing-dev: Kill set but not used var in bdi_debug_stats_show()
block: get rid of on-stack plugging debug checks
blk-throttle: Make no throttling rule group processing lockless
blk-cgroup: Make cgroup stat reset path blkg->lock free for dispatch stats
blk-cgroup: Make 64bit per cpu stats safe on 32bit arch
blk-throttle: Make dispatch stats per cpu
blk-throttle: Free up a group only after one rcu grace period
blk-throttle: Use helper function to add root throtl group to lists
blk-throttle: Introduce a helper function to fill in device details
blk-throttle: Dynamically allocate root group
blk-cgroup: Allow sleeping while dynamically allocating a group
...
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: Make struct pcmcia_device_id const, sound drivers edition
staging: pcmcia: Convert pcmcia_device_id declarations to const
pcmcia: Convert pcmcia_device_id declarations to const
pcmcia: Make declaration and uses of struct pcmcia_device_id const
pcmcia/sa1100: put sa11x0_pcmcia_hw_init[] to .devinit.data
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: Power off empty ports
libata-pmp: add support for Thermaltake BlackX Duet esata drive dock
ATA: Don't powerdown Compaq Triflex IDE device on suspend
libata: Use Maximum Write Same Length to report discard size limit
drivers/ata/acard-ahci.c: fix enum warning
pata_at91: SMC settings calculation bugfixes, support for t6z and IORDY
libata-sff: prevent irq descriptions for dummy ports
pata_cm64x: fix boot crash on parisc
Since for-2.6.40/core was forked off the 2.6.39 devel tree, we've
had churn in the core area that makes it difficult to handle
patches for eg cfq or blk-throttle. Instead of requiring that they
be based in older versions with bugs that have been fixed later
in the rc cycle, merge in 2.6.39 final.
Also fixes up conflicts in the below files.
Conflicts:
drivers/block/paride/pcd.c
drivers/cdrom/viocd.c
drivers/ide/ide-cd.c
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Give users the option of completely powering off unoccupied
SATA ports using the existing min_power link_power_management_policy
option. When the use selects this option on an empty port, we
will power the port off by setting DET to off. For occupied ports,
behavior is unchanged.
Signed-off-by: Kristen Carlson Accardi <kristen@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Some errors still show up, but the dock works, both drives can be
accessed at the same time
The chip maker and designation is unknown - possibly jmicron JMB350?
Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Don't powerdown Compaq Triflex IDE device on suspend
This fixes APM suspend on Compaq Armada 7400.
APM BIOS doesn't suspend if IDE is powered down when suspending.
The Triflex controller is found only on old Compaq boards,
so this patch will hopefully have no side effects.
Signed-off-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Previously we used Maximum Unmap LBA Count in the Block Limits VPD to
signal the maximum number of sectors we could handle in a single Write
Same command.
Starting with SBC3r26 the Block Limits VPD has an explicit limit on the
number of blocks in a Write Same. This means we can stop abusing a field
related to the Unmap command and let our SAT use the proper value in the
VPD (Maximum Write Same Length).
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Cc: stable@kernel.org
* New code correctly calculates SMC registers values, adjusts calculated
to admissible ranges, enlarges cycles when required and converts values
into SMC's format.
* Support for TDF cycles (ATA t6z) and IORDY line added.
* Eliminate need in the initial_timing structure.
* Code cleanup.
Signed-off-by: Igor Plyatov <plyatov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This is a cosmetic change to prevent libata-sff adding irq
descriptions to dummy ports, since the information, while largely
unused, is erroneous.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The old IDE cmd64x checks the status of the CNTRL register to see if
the ports are enabled before probing them. pata_cmd64x doesn't do
this, which causes a HPMC on parisc when it tries to poke at the
secondary port because apparently the BAR isn't wired up (and a
non-responding piece of memory causes a HPMC).
Fix this by porting the CNTRL register port detection logic from IDE
cmd64x. In addition, following converns from Alan Cox, add a check to
see if a mobility electronics bridge is the immediate parent and forgo
the check if it is (prevents problems on hotplug controllers).
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This reverts commit 270dac35c2.
The commits causes command timeouts on AC plug/unplug. It isn't yet
clear why. As the commit was for a single rather obscure controller,
revert the change for now.
The problem was reported and bisected by Gu Rui in bug#34692.
https://bugzilla.kernel.org/show_bug.cgi?id=34692
Also, reported by Rafael and Michael in the following thread.
http://thread.gmane.org/gmane.linux.kernel/1138771
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Gu Rui <chaos.proton@gmail.com>
Reported-by: Rafael J. Wysocki <rjw@sisk.pl>
Reported-by: Michael Leun <lkml20100708@newton.leun.net>
Cc: Jian Peng <jipeng2005@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Saves about 50KB of data.
Old/new size of all objects:
text data bss dec hex filename
563015 80096 130684 773795 bcea3 (TOTALS)
610916 32256 130632 773804 bceac (TOTALS)
Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Kurt Van Dijck <kurt.van.dijck@eia.be> (for drivers/net/can/softing/softing_cs.c)
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
At the end of section 10.1 of AHCI spec (rev 1.3), it states
Software shall not set PxCMD.ST to 1 until it is determined that
a functoinal device is present on the port as determined by
PxTFD.STS.BSY=0, PxTFD.STS.DRQ=0 and PxSSTS.DET=3h
Even though most AHCI host controller works without this check,
specific controller will fail under this condition.
Signed-off-by: Jian Peng <jipeng2005@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The "struct ata_timing" must contain 10 members, but ".dmack_hold" member was
forgotten for "initial_timing" initialisation. This patch fixes such a problem.
Signed-off-by: Igor Plyatov <plyatov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The AT91SAM9 microcontrollers with master clock higher then 105 MHz
and PIO0, have overflow of the NCS_RD_PULSE value in the MSB. This
lead to "NCS_RD_PULSE" pulse longer then "NRD_CYCLE" pulse and driver
does not detect ATA device.
Signed-off-by: Igor Plyatov <plyatov@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The previously submitted patch was word-wrapped.
This patch adds the AHCI-mode SATA DeviceIDs for the Intel Panther Point PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The previously submitted patch was word-wrapped.
This patch adds the IDE-mode SATA DeviceIDs for the Intel Panther
Point PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Commit 4a5610a04d fixed an issue with
the Pioneer DVR-212D not handling SETXFER correctly. An openSUSE user
reported a similar issue with his DVR-216D that the NOSETXFER horkage
worked around for him as well.
This patch adds the DVR-216D (1.08) to the horkage list for NOSETXFER.
The issue was reported at:
https://bugzilla.novell.com/show_bug.cgi?id=679143
Reported-by: Volodymyr Kyrychenko <vladimir.kirichenko@gmail.com>
Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The ahci_pmp_attach() & ahci_pmp_detach() unmask port irqs, but they
are also called during port initialization, before ahci host irq
handler is registered. On ce4100 platform, this sometimes triggers
"irq 4: nobody cared" message when loading driver.
Fixed this by not touching the register if the port is in frozen
state, and mark all uninitialized port as frozen.
Signed-off-by: Maxime Bizon <mbizon@freebox.fr>
Acked-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
NVIDIA mcp65 familiy of controllers cause command timeouts when DIPM
is used. Implement ATA_FLAG_NO_DIPM and apply it.
This problem was reported by Stefan Bader in the following thread.
http://thread.gmane.org/gmane.linux.ide/48841
stable: applicable to 2.6.37 and 38.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stefan Bader <stefan.bader@canonical.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch adds an sysfs attribute 'em_message_supported' to the
ahci host device which prints out the supported enclosure management
message types.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Use gpio_request_array() / gpio_free_array(), this makes the code
cleaner and less error prone.
This patch also properly frees GPIOs in case ata_host_activate() call fails.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
In FSL sata v2 block, the snoop bit of PRDT Word3 description
information is at bit28 instead of bit22.
This patch adds FSL sata v2 probe and resolve this difference.
Signed-off-by: Lei Xu <B33228@freescale.com>
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
1b4b:91a3 seems to be another PCI ID for marvell ahci. Add it.
Reported and tested in the following thread.
http://thread.gmane.org/gmane.linux.kernel/1068354
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Borislav Petkov <bp@alien8.de>
Reported-by: Alessandro Tagliapietra <tagliapietra.alessandro@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
RX_WATER_MARK sets the number of locations in Rx FIFO that can be used before
the transport layer instructs the link layer to transmit HOLDS. Note that it
can take some time for the HOLDs to get to the other end, and that in the
interim there must be enough room in the FIFO to absorb all data that could
arrive.
Update the new recommended value to 16.
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
When a single device error is detected, the device under the error
is indicated by the error bit set in the DER. There is a one to one
mapping between register bit and devices on Port multiplier(PMP)
i.e. bit 0 represents PMP device 0 and bit 1 represents PMP device
1 etc.
Current implementation treats Device error register value as device
number not set of bits representing multiple device on PMP. It is
changed to consider bit level.
No need to check for each set bit as all command is going to be
aborted.
Signed-off-by: Ashish Kalra <B00888@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
As per SAT-3 the WWN ID should be included in the VPD page 0x83
(device identification) emulation.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Some DMA controllers (eg: drivers/dma/dw_dmac*) allow platform specific
configuration for dma transfers. User drivers need to set chan->private field
of channel with pointer to configuration data. This patch takes dma_priv data
from platform data and passes it to chan->private_data, in order to pass
platform specific configuration to DMAC controller.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Commit 40d69ba029
("pata_hpt{37x|3x2n}: use pr_*(DRV_NAME ...) instead of printk(KERN_* ...)")
used pr_<level>.
Add #define pr_fmt and remove DRV_NAME.
Increment driver version numbers.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
The Arasan CompactFlash Device Controller has three basic modes of
operation: PC card ATA using I/O mode, PC card ATA using memory mode, PC card
ATA using true IDE modes.
Currently driver supports only True IDE mode.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch adds ata_sff_queue_work() & ata_sff_queue_delayed_work() routine in
libata-sff.c file. This routine can be used by ata drivers to use ata_sff_wq.
Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
This patch adds an updated SATA RAID DeviceID for the Intel Patsburg PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
Commit 6b7ae9545a (libata: reimplement link power
management) removed the check of ATA_FLAG_LPM but neglected to remove the flag
itself. Do it now...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
All checks of ATA_FLAG_NO_LEGACY have been removed by the commits
c791c30670 ([libata] minor PCI IDE probe
fixes and cleanups) and f0d36efdc6 (libata:
update libata core layer to use devres), so I think it's time to finally
get rid of this flag...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 0d5ff56677 (libata: convert to iomap)
removed all checks of ATA_FLAG_MMIO but neglected to remove the flag itself.
Do it now, at last...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
These flags are marked as obsolete and the checks for them have been removed
by commit 294440887b (libata-sff: kill unused
ata_bus_reset()), so I think it's time to finally get rid of them...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The driver makes use of the two options (CONFIG_SATA_DWC_[V]DEBUG) to enable
the debug output but they both are absent in drivers/ata/Kconfig...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The driver erroneously uses ata_get_cmd_descript() not only for printing out
the ATA commands but also the protocol and DMA direction enums. Add functions
for properly printing those out...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The caller expects this function to return the DMA channel number on success,
while it returns 0...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fix the following compilation errors/warnings:
drivers/ata/sata_dwc_460ex.c:43:1: warning: "DRV_NAME" redefined
In file included from drivers/ata/sata_dwc_460ex.c:38:
drivers/ata/libata.h:31:1: warning: this is the location of the previous
definition
drivers/ata/sata_dwc_460ex.c:44:1: warning: "DRV_VERSION" redefined
drivers/ata/libata.h:32:1: warning: this is the location of the previous
definition
drivers/ata/sata_dwc_460ex.c: In function `sata_dwc_exec_command_by_tag':
drivers/ata/sata_dwc_460ex.c:1356: warning: passing argument 1 of
`ata_get_cmd_descript' makes integer from pointer without a cast
drivers/ata/sata_dwc_460ex.c: In function `sata_dwc_qc_issue':
drivers/ata/sata_dwc_460ex.c:1476: warning: `err' is used uninitialized in this
function
drivers/ata/sata_dwc_460ex.c:1465: note: `err' was declared here
drivers/ata/sata_dwc_460ex.c: In function `sata_dwc_qc_issue':
drivers/ata/sata_dwc_460ex.c:1493: warning: passing argument 1 of
`ata_get_cmd_descript' makes integer from pointer without a cast
drivers/ata/sata_dwc_460ex.c: In function `sata_dwc_qc_prep':
drivers/ata/sata_dwc_460ex.c:1537: error: `tag' undeclared (first use in this
function)
drivers/ata/sata_dwc_460ex.c:1537: error: (Each undeclared identifier is
reported only once
drivers/ata/sata_dwc_460ex.c:1537: error: for each function it appears in.)
NB: error only happens if DEBUG_NCQ macro is defined...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Somehow the driver was committed with a bare number for the PIO mask, instead
of ATA_PIO4...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Right at the moment, the libata error handler is incredibly
monolithic. This makes it impossible to use from composite drivers
like libsas and ipr which have to handle error themselves in the first
instance.
The essence of the change is to split the monolithic error handler
into two components: one which handles a queue of ata commands for
processing and the other which handles the back end of readying a
port. This allows the upper error handler fine grained control in
calling libsas functions (and making sure they only get called for ATA
commands whose lower errors have been fixed up).
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The SCSI host eh_cmd_q should be protected by the host lock (not the
port lock). This probably doesn't matter that much at the moment,
since we try to serialise the add and eh pieces, but it might matter
in future for more convenient error handling. Plus this switches
libata to the standard eh pattern where you lock, remove from the cmd
queue to a local list and unlock and then operate on the local list.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
For historical reasons, libsas uses the scsi host lock as the ata port
lock, and libata always uses the ata host. For the old eh, this was
largely irrelevant since the two locks were never mixed inside the
code. However, the new eh has a case where it nests acquisition of
the host lock inside the port lock (this does look rather deadlock
prone). Obviously this would be an instant deadlock if the port lock
were the host lock, so switch the libsas paths to use the ata host
lock as well.
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The function ata_sas_port_init() has always really done its own thing.
However, as a precursor to moving to the libata new eh, it has to be
properly using the standard libata scan paths. This means separating
the current libata scan paths into pieces which can be shared with
libsas and pieces which cant (really just the async call and the host
scan).
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_eh_analyze_serror() suppresses hotplug notifications if LPM is
being used because LPM generates spurious hotplug events. It compared
whether link->lpm_policy was different from ATA_LPM_MAX_POWER to
determine whether LPM is enabled; however, this is incorrect as for
drivers which don't implement LPM, lpm_policy is always
ATA_LPM_UNKNOWN. This disabled hotplug detection for all drivers
which don't implement LPM.
Fix it by comparing whether lpm_policy is greater than
ATA_LPM_MAX_POWER.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Final step to eliminate of_platform_bus_type. They're all just
platform drivers now.
v2: fix type in pasemi_nand.c (thanks to Stephen Rothwell)
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
ata_pio_sectors() expects buffer for each sector to be contained in a
single page; otherwise, it ends up overrunning the first page. This
is achieved by setting queue DMA alignment. If sector_size is smaller
than PAGE_SIZE and all buffers are sector_size aligned, buffer for
each sector is always contained in a single page.
This wasn't applied to ATAPI devices but IDENTIFY_PACKET is executed
as ATA_PROT_PIO and thus uses ata_pio_sectors(). Newer versions of
udev issue IDENTIFY_PACKET with unaligned buffer triggering the
problem and causing oops.
This patch fixes the problem by setting sdev->sector_size to
ATA_SECT_SIZE on ATATPI devices and always setting DMA alignment to
sector_size. While at it, add a warning for the unlikely but still
possible scenario where sector_size is larger than PAGE_SIZE, in which
case the alignment wouldn't be enough.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: John Stanley <jpsinthemix@verizon.net>
Tested-by: John Stanley <jpsinthemix@verizon.net>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
PIONEER DVR-212D can't do SETXFER like its sibling DVRTD08. Add
ATA_HORKAGE_NOSETXFER for it. Reported in bko#27502.
https://bugzilla.kernel.org/show_bug.cgi?id=27502
Signed-off-by: Francesco Antonacci <fraanto@gmail.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 5f173107ec added HFLAG_YES_FBS workaround for 88SE9128
(1b4b:9123).
However, that change inadvertently caused the legacy IDE interface of
the controller (with the same pci id) to become associated with the AHCI
driver as well, causing the driver to try to bring the interface up in
vain.
Fix that by matching against class as well.
Signed-off-by: Anssi Hannula <anssi.hannula@iki.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit ab81a505ae (pata_hpt37x: unify ->pre_reset
methods) neglected to remove the initializer for the prereset() method from
'hpt374_fn1_port_ops' (it's inherited from 'hpt372_port_ops' anyway), as well
as to update the comment in hpt37x_init_one()...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the AHCI-mode SATA DeviceID for the Intel DH89xxCC PCH.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
hpt37x_init_one() has a large *if* statement which should really be folded into
the *switch* statement that currently constitutes its *else* branch, reducing
one level of indentation...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
... the same as the 'pata_hpt366' driver does.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
pata_mpc52xx supports BMDMA but inherits ata_sff_port_ops which
triggers BUG_ON() when a DMA command is issued. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Roman Fietze <roman.fietze@telemotive.de>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The meaning of CONFIG_EMBEDDED has long since been obsoleted; the option
is used to configure any non-standard kernel with a much larger scope than
only small devices.
This patch renames the option to CONFIG_EXPERT in init/Kconfig and fixes
references to the option throughout the kernel. A new CONFIG_EMBEDDED
option is added that automatically selects CONFIG_EXPERT when enabled and
can be used in the future to isolate options that should only be
considered for embedded systems (RISC architectures, SLOB, etc).
Calling the option "EXPERT" more accurately represents its intention: only
expert users who understand the impact of the configuration changes they
are making should enable it.
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: David Woodhouse <david.woodhouse@intel.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Greg KH <gregkh@suse.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Robin Holt <holt@sgi.com>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
CONFIG_HAVE_PATA_PLATFORM, by virtue of where its defined, has a
dependency on CONFG_ATA and CONFIG_ATA_SFF. This causes Kconfig
warnings when it is selected by various architectures, such as
warning: (ARCH_VEXPRESS && <choice> || ARCH_RPC && <choice> || MACH_VPAC270 && ARCH_PXA || MACH_REALVIEW_PB11MP && ARCH_REALVIEW || MACH_REALVIEW_PBA8 && ARCH_REALVIEW || MACH_REALVIEW_PBX && ARCH_REALVIEW || MACH_BAST_IDE && ARCH_S3C2410 || MACH_ANUBIS && ARCH_S3C2410) selects HAVE_PATA_PLATFORM which has unmet direct dependencies (ATA && ATA_SFF)
Since this option is only used to control visibility of the
CONFIG_PATA_PLATFORM option and isn't itself visible in the menu,
it is straightforward to simply remove these dependencies rather
than adjust all the architectures.
Signed-off-by: Nick Bowler <nbowler@elliptictech.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The driver clearly tries to limit HPT370[A] to UltraDMA/66 if the PCI clock is
less than 50 MHz but due to cut&paste type mistake this code has no effect...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fix 8 errors and 3 warnings given by checkpatch.pl:
- *switch* and *case* not on the same indentation level;
- no space between *for*/*switch*/*while* and open parenthesis;
- space between an unary operator and its operand;
- spaces before tabs;
- lines over 80 characters.
In addition to these changes, also do the following:
- add new line after variable definitions;
- fix the style of some multi-line comments.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fix 12 errors and 15 warnings given by checkpatch.pl:
- *switch* and *case* not on the same indentation level;
- no space between *for*/*switch*/*while* and open parenthesis;
- space between an unary operator and its operand;
- drive blacklist arrays not being *const*;
- spaces before tabs;
- lines over 80 characters.
In addition to these changes, also do the following:
- add new line after variable definitions;
- fix the style of some multi-line comments.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Fix 2 errors and 11 warnings given by checkpatch.pl:
- *switch* and *case* not on the same indentation level;
- no space between *switch* and open parenthesis;
- drive blacklist arrays not being *const*;
- spaces before tabs;
- lines over 80 characters.
In addition to these changes, also add new line after variable definition in
hpt36x_init_chipset()...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Allow hpt3x2n_pci_clock() to calculate the average f_CNT register value iff
HighPoint BIOS hasn't saved one, just like the 'pata_hpt37x' driver (reading
the full 16-bit register, unlike what that driver does), so that this driver
would work correctly on e.g. non-x86 machine with 66 MHz PCI.
I'm not sure why Alan has only done this in one driver and not the other...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 28e21c8c0d (pata_hpt3x2n: Add HPT371N
support and other bits) forgot to update the driver's Kconfig entry, heading
comment, and module description (that also wrongly claims support of HPT302)
which may confuse users...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The Marvell bridge chips used on HighPoint SATA cards do not seem to support
the UltraDMA modes 1, 2, and 3 as well as any MWDMA modes; these cards are
based on HPT372/372A/372N/374 chips (judging from the vendor drivers), so
the Linux drivers need to have a mode_filter() method for these chips...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (33 commits)
usb: don't use flush_scheduled_work()
speedtch: don't abuse struct delayed_work
media/video: don't use flush_scheduled_work()
media/video: explicitly flush request_module work
ioc4: use static work_struct for ioc4_load_modules()
init: don't call flush_scheduled_work() from do_initcalls()
s390: don't use flush_scheduled_work()
rtc: don't use flush_scheduled_work()
mmc: update workqueue usages
mfd: update workqueue usages
dvb: don't use flush_scheduled_work()
leds-wm8350: don't use flush_scheduled_work()
mISDN: don't use flush_scheduled_work()
macintosh/ams: don't use flush_scheduled_work()
vmwgfx: don't use flush_scheduled_work()
tpm: don't use flush_scheduled_work()
sonypi: don't use flush_scheduled_work()
hvsi: don't use flush_scheduled_work()
xen: don't use flush_scheduled_work()
gdrom: don't use flush_scheduled_work()
...
Fixed up trivial conflict in drivers/media/video/bt8xx/bttv-input.c
as per Tejun.
Add support for Acard ATP8620 host controller.
Based upon initial version by Jeff Garzik.
Signed-off-by: David Milburn <dmilburn@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
We don't need or want MSR usage here, on x86-64.
x86-64 was disabled intentionally in Kconfig, but commit
9272dcc232 changed that.
drivers/ata/pata_cs5536.c:47:1: warning: "rdmsr" redefined
In file included from arch/x86/include/asm/irqflags.h:60,
from include/linux/irqflags.h:15,
from arch/x86/include/asm/system.h:11,
from arch/x86/include/asm/processor.h:17,
from include/linux/prefetch.h:14,
from include/linux/list.h:7,
from include/linux/module.h:9,
from drivers/ata/pata_cs5536.c:33:
arch/x86/include/asm/paravirt.h:146:1: warning: this is the location of the previous definition
drivers/ata/pata_cs5536.c:48:1: warning: "wrmsr" redefined
arch/x86/include/asm/paravirt.h:154:1: warning: this is the location of the previous definition
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Low level drivers may behave differently depending on the current
link->lpm_policy. During ata_eh_set_lpm(), DIPM enable commands are
issued after the successful completion of ap->ops->set_lpm(), which
means that the controller is already in the target state. This causes
DIPM enable commands to be processed with mismatching controller power
state and link->lpm_policy value.
In ahci, link->lpm_policy is used to ignore certain PHY events if LPM
is enabled; however, as DIPM commands are issued with stale
link->lpm_policy, they sometimes end up triggering these conditions
and get aborted leading to LPM configuration failure.
Fix it by updating link->lpm_policy before issuing DIPM enable
commands.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_qc_complete() contains special handling for certain commands. For
example, it schedules EH for device revalidation after certain
configurations are changed. These shouldn't be applied to EH
commands but they were.
In most cases, it doesn't cause an actual problem because EH doesn't
issue any command which would trigger special handling; however, ACPI
can issue such commands via _GTF which can cause weird interactions.
Restructure ata_qc_complete() such that EH commands are always passed
on to __ata_qc_complete().
stable: Please apply to -stable only after 2.6.38 is released.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Kyle McMartin <kyle@mcmartin.ca>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Found by this build-error if BMDMA is disabled:
drivers/ata/pata_mpc52xx.c: In function 'mpc52xx_ata_init_one':
drivers/ata/pata_mpc52xx.c:662: error: 'ata_bmdma_interrupt' undeclared (first use in this function)
...
Move the Kconfig entry to the proper location as needed since
9a7780c9ac (libata-sff: make BMDMA optional)
Signed-off-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
pata_cs5536 does work on the other platforms(e.g. Loongson, a MIPS
variant), so, remove the dependency of X86_32 and fix the building
errors under the other platforms via only reserving the X86_32 specific
parts for X86_32.
pata_amd also supports cs5536 IDE controller, but this one saves about
33k for the compressed kernel image(vmlinuz for MIPS).
Signed-off-by: Zhang Le <r0bertz@gentoo.org>
Signed-off-by: Chen Jie <chenj@lemote.com>
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
While separating out BMDMA irq handler from SFF, commit c3b28894
(libata-sff: separate out BMDMA irq handler) incorrectly made
__ata_sff_port_intr() consider an IRQ to be an idle one if the host
state was transitioned to HSM_ST_ERR by ata_bmdma_port_intr().
This makes BMDMA drivers ignore IRQs reporting host bus error which
leads to timeouts instead of triggering EH immediately. Fix it by
making __ata_sff_port_intr() consider the IRQ to be an idle one iff
the state is HSM_ST_IDLE. This is equivalent to adding HSM_ST_ERR to
the "break"ing case but less error-prone.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Antonio Toma <antonio.toma@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Conflicts:
MAINTAINERS
arch/arm/mach-omap2/pm24xx.c
drivers/scsi/bfa/bfa_fcpim.c
Needed to update to apply fixes for which the old branch was too
outdated.
cancel_rearming_delayed_work[queue]() has been superceded by
cancel_delayed_work_sync() quite some time ago. Convert all the
in-kernel users. The conversions are completely equivalent and
trivial.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: "David S. Miller" <davem@davemloft.net>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
Acked-by: Evgeniy Polyakov <zbr@ioremap.net>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: netdev@vger.kernel.org
Cc: Anton Vorontsov <cbou@mail.ru>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Neil Brown <neilb@suse.de>
Cc: Alex Elder <aelder@sgi.com>
Cc: xfs-masters@oss.sgi.com
Cc: Christoph Lameter <cl@linux-foundation.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: netfilter-devel@vger.kernel.org
Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: linux-nfs@vger.kernel.org
vt6420 has the same FIFO overflow problem as vt6421 when combined with
certain devices. This patch applies the magic fix to vt6420 too.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Martin Qvist <q@maq.dk>
Reported-by: Peter Zijlstra <peterz@infradead.org>
Cc: Joseph Chan <JosephChan@via.com.tw>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
cmd->serial_number is never tested in any path we reach; therefore we may
remove the call to scsi_cmd_get_serial() inside DEF_SCSI_QCMD, the SCSI
host_lock acquisition surrounding it, and our own SCSI host_lock
unlock+relock cycle.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Move the mid-layer's ->queuecommand() invocation from being locked
with the host lock to being unlocked to facilitate speeding up the
critical path for drivers who don't need this lock taken anyway.
The patch below presents a simple SCSI host lock push-down as an
equivalent transformation. No locking or other behavior should change
with this patch. All existing bugs and locking orders are preserved.
Additionally, add one parameter to queuecommand,
struct Scsi_Host *
and remove one parameter from queuecommand,
void (*done)(struct scsi_cmnd *)
Scsi_Host* is a convenient pointer that most host drivers need anyway,
and 'done' is redundant to struct scsi_cmnd->scsi_done.
Minimal code disturbance was attempted with this change. Most drivers
needed only two one-line modifications for their host lock push-down.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Delete successive assignments to the same location.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression i;
@@
*i = ...;
i = ...;
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
pata_legacy is incorrectly testing PATA_WINBOND_VLB_MODULE instead of
CONFIG_PATA_WINBOND_VLB_MODULE. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: "Robert P. J. Day" <rpjday@crashcourse.ca>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
SCSI commands may be issued between __scsi_add_device() and dev->sdev
assignment, so it's unsafe for ata_qc_complete() to dereference
dev->sdev->locked without checking whether it's NULL or not. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The creation of the I/O clock domain requires some adjustments. Since the
CF bus timing logic is clocked by the I/O clock, use its rate for delay
calculations.
Signed-off-by: David Daney <ddaney@caviumnetworks.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: linux-ide@vger.kernel.org
Patchwork: http://patchwork.linux-mips.org/patch/1660/
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
workqueue: remove in_workqueue_context()
workqueue: Clarify that schedule_on_each_cpu is synchronous
memory_hotplug: drop spurious calls to flush_scheduled_work()
shpchp: update workqueue usage
pciehp: update workqueue usage
isdn/eicon: don't call flush_scheduled_work() from diva_os_remove_soft_isr()
workqueue: add and use WQ_MEM_RECLAIM flag
workqueue: fix HIGHPRI handling in keep_working()
workqueue: add queue_work and activate_work trace points
workqueue: prepare for more tracepoints
workqueue: implement flush[_delayed]_work_sync()
workqueue: factor out start_flush_work()
workqueue: cleanup flush/cancel functions
workqueue: implement alloc_ordered_workqueue()
Fix up trivial conflict in fs/gfs2/main.c as per Tejun
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (26 commits)
include/linux/libata.h: fix typo
pata_bf54x: fix return type of bfin_set_devctl
Drivers: ata: Makefile: replace the use of <module>-objs with <module>-y
libahci: fix result_tf handling after an ATA PIO data-in command
pata_sl82c105: implement sff_irq_check() method
pata_sil680: implement sff_irq_check() method
pata_pdc202xx_old: implement sff_irq_check() method
pata_cmd640: implement sff_irq_check() method
ata_piix: Add device ID for ICH4-L
pata_sil680: make sil680_sff_exec_command() 'static'
ata: Intel IDE-R support
libata: reorder ata_queued_cmd to remove alignment padding on 64 bit builds
libata: Signal that our SATL supports WRITE SAME(16) with UNMAP
ata_piix: remove SIDPR locking
libata: implement cross-port EH exclusion
libata: add @ap to ata_wait_register() and introduce ata_msleep()
ata_piix: implement LPM support
libata: implement LPM support for port multipliers
libata: reimplement link power management
libata: implement sata_link_scr_lpm() and make ata_dev_set_feature() global
...
The new devctl func added for us to the driver has the wrong return
type. Which is to say there shouldn't be any. This fixes compile
time warnings as there shouldn't be any runtime difference.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ATA devices don't send D2H Reg FIS after an successful ATA PIO data-in
command. The host is supposed to take the TF and E_Status of the
preceding PIO Setup FIS. Update ahci_qc_fill_rtf() such that it takes
TF + E_Status from PIO Setup FIS after a successful ATA PIO data-in
command.
Without this patch, result_tf for such a command is filled with the
content of the previous D2H Reg FIS which belongs to a previous
command, which can make the command incorrectly seen as failed.
* Patch updated to grab the whole TF + E_Status from PIO Setup FIS
instead of just E_Status as suggested by Robert Hancock.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Mark Lord <kernel@teksavvy.com>
Cc: Robert Hancock <hancockrwd@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ICH4-L is a variant of ICH4 lacking USB2 functionality and with some
different device IDs.
It is documented in Intel specification update 290745-025, currently
at <http://www.intel.com/assets/pdf/specupdate/290745.pdf>, and is
included in the device ID table for piix.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
... since, of course, it's not used outside this driver.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Intel IDE-R devices are part of the Intel AMT management setup. They don't
have any special configuration registers or settings so the ata_generic
driver will support them fully.
Rather than add a huge table of IDs for each chipset and keep sending in
new ones this patch autodetects them.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Until now identifying that a device supports WRITE SAME(16) with the
UNMAP bit set has been black magic. Implement support for the SBC-3
Thin Provisioning VPD page and set the TPWS bit.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Now that libata provides proper cross-port EH exclusion. The SIDPR
locking added by commit 213373cf (ata_piix: fix locking around SIDPR
access) is no longer necessary. Remove it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
In libata, the non-EH code paths should always take and release
ap->lock explicitly when accessing hardware or shared data structures.
However, once EH is active, it's assumed that the port is owned by EH
and EH methods don't explicitly take ap->lock unless race from irq
handler or other code paths are expected. However, libata EH didn't
guarantee exclusion among EHs for ports of the same host. IOW,
multiple EHs may execute in parallel on multiple ports of the same
controller.
In many cases, especially in SATA, the ports are completely
independent of each other and this doesn't cause problems; however,
there are cases where different ports share the same resource, which
lead to obscure timing related bugs such as the one fixed by commit
213373cf (ata_piix: fix locking around SIDPR access).
This patch implements exclusion among EHs of the same host. When EH
begins, it acquires per-host EH ownership by calling ata_eh_acquire().
When EH finishes, the ownership is released by calling
ata_eh_release(). EH ownership is also released whenever the EH
thread goes to sleep from ata_msleep() or explicitly and reacquired
after waking up.
This ensures that while EH is actively accessing the hardware, it has
exclusive access to it while allowing EHs to interleave and progress
in parallel as they hit waiting stages, which dominate the time spent
in EH. This achieves cross-port EH exclusion without pervasive and
fragile changes while still allowing parallel EH for the most part.
This was first reported by yuanding02@gmail.com more than three years
ago in the following bugzilla. :-)
https://bugzilla.kernel.org/show_bug.cgi?id=8223
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Reported-by: yuanding02@gmail.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add optional @ap argument to ata_wait_register() and replace msleep()
calls with ata_msleep() which take optional @ap in addition to the
duration. These will be used to implement EH exclusion.
This patch doesn't cause any behavior difference.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Now that DIPM can be used independently from HIPM, ata_piix can
support LPM too.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Port multipliers can do DIPM on fan-out links fine. Implement support
for it. Tested w/ SIMG 57xx and marvell PMPs. Both the host and
fan-out links enter power save modes nicely.
SIMG 37xx and 47xx report link offline on SStatus causing EH to detach
the devices. Blacklisted.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The current LPM implementation has the following issues.
* Operation order isn't well thought-out. e.g. HIPM should be
configured after IPM in SControl is properly configured. Not the
other way around.
* Suspend/resume paths call ata_lpm_enable/disable() which must only
be called from EH context directly. Also, ata_lpm_enable/disable()
were called whether LPM was in use or not.
* Implementation is per-port when it should be per-link. As a result,
it can't be used for controllers with slave links or PMP.
* LPM state isn't managed consistently. After a link reset for
whatever reason including suspend/resume the actual LPM state would
be reset leaving ap->lpm_policy inconsistent.
* Generic/driver-specific logic boundary isn't clear. Currently,
libahci has to mangle stuff which libata EH proper should be
handling. This makes the implementation unnecessarily complex and
fragile.
* Tied to ALPM. Doesn't consider DIPM only cases and doesn't check
whether the device allows HIPM.
* Error handling isn't implemented.
Given the extent of mismatch with the rest of libata, I don't think
trying to fix it piecewise makes much sense. This patch reimplements
LPM support.
* The new implementation is per-link. The target policy is still
port-wide (ap->target_lpm_policy) but all the mechanisms and states
are per-link and integrate well with the rest of link abstraction
and can work with slave and PMP links.
* Core EH has proper control of LPM state. LPM state is reconfigured
when and only when reconfiguration is necessary. It makes sure that
LPM state is reset when probing for new device on the link.
Controller agnostic logic is now implemented in libata EH proper and
driver implementation only has to deal with controller specifics.
* Proper error handling. LPM config failure is attributed to the
device on the link and LPM is disabled for the link if it fails
repeatedly.
* ops->enable/disable_pm() are replaced with single ops->set_lpm()
which takes @policy and @hints. This simplifies driver specific
implementation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Link power management is about to be reimplemented. Prepare for it.
* Implement sata_link_scr_lpm().
* Drop static from ata_dev_set_feature() and make it available to
other libata files.
* Trivial whitespace adjustments.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Link power management related symbols are in confusing state w/ mixed
usages of lpm, ipm and pm. This patch cleans up lpm related symbols
and sysfs show/store functions as follows.
* lpm states - NOT_AVAILABLE, MIN_POWER, MAX_PERFORMANCE and
MEDIUM_POWER are renamed to ATA_LPM_UNKNOWN and
ATA_LPM_{MIN|MAX|MED}_POWER.
* Pre/postfixes are unified to lpm.
* sysfs show/store functions for link_power_management_policy were
curiously named get/put and unnecessarily complex. Renamed to
show/store and simplified.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This build error showed up in linux-next tag next-20100820 for ia64:
WARNING: vmlinux.o(.init.text+0x4a952): Section mismatch in reference from the function ata_init() to the function .exit.text:ata_sff_exit()
The function __init ata_init() references
a function __exit ata_sff_exit().
This is often seen when error handling in the init function
uses functionality in the exit path.
The fix is often to remove the __exit annotation of
ata_sff_exit() so it may be used outside an exit section.
Sure enough, dropping the __exit fixes the problem.
Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This change enables my x86 machine to recognize and talk to a
"Native 4K" SATA device.
When I started working on this, I didn't know Matthew Wilcox had
posted a similar patch 2 years ago:
http://git.kernel.org/?p=linux/kernel/git/willy/ata.git;a=shortlog;h=refs/heads/ata-large-sectors
Gwendal Grignou pointed me at the the above code and small portions of
this patch include Matthew's work. That's why Mathew is first on the
"Signed-off-by:". I've NOT included his use of a bitmap to determine
512 vs Native for ATA command block size - just used a simple table.
And bugs are almost certainly mine.
Lastly, the patch has been tested with a native 4K 'Engineering
Sample' drive provided by Hitachi GST.
Signed-off-by: Matthew Wilcox <matthew.r.wilcox@intel.com>
Signed-off-by: Grant Grundler <grundler@google.com>
Reviewed-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Currently, sata_fsl, mv and nv call ata_qc_complete() multiple times
from their interrupt handlers to indicate completion of NCQ commands.
This limits the visibility the libata core layer has into how commands
are being executed and completed, which is necessary to support IRQ
expecting in generic way. libata already has an interface to complete
multiple commands at once - ata_qc_complete_multiple() which ahci and
sata_sil24 already use.
This patch updates the three drivers to use ata_qc_complete_multiple()
too and updates comments on ata_qc_complete[_multiple]() regarding
their usages with NCQ completions. This change not only provides
better visibility into command execution to the core layer but also
simplifies low level drivers.
* sata_fsl: It already builds done_mask. Conversion is straight
forward.
* sata_mv: mv_process_crpb_response() no longer checks for illegal
completions, it just returns whether the tag is completed or not.
mv_process_crpb_entries() builds done_mask from it and passes it to
ata_qc_complete_multiple() which will check for illegal completions.
* sata_nv adma: Similar to sata_mv. nv_adma_check_cpb() now just
returns the tag status and nv_adma_interrupt() builds done_mask from
it and passes it to ata_qc_complete_multiple().
* sata_nv swncq: It already builds done_mask. Drop unnecessary
illegal transition checks and call ata_qc_complete_multiple().
In the long run, it might be a good idea to make ata_qc_complete()
whine if called when multiple NCQ commands are in flight.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ashish Kalra <ashish.kalra@freescale.com>
Cc: Saeed Bishara <saeed@marvell.com>
Cc: Mark Lord <liml@rtr.ca>
Cc: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This is a scheleton for libata transport class.
All information is read only, exporting information from libata:
- ata_port class: one per ATA port
- ata_link class: one per ATA port or 15 for SATA Port Multiplier
- ata_device class: up to 2 for PATA link, usually one for SATA.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Reviewed-by: Grant Grundler <grundler@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The patch below updates broken web addresses in the kernel
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Finn Thain <fthain@telegraphics.com.au>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Dimitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Mike Frysinger <vapier.adi@gmail.com>
Acked-by: Ben Pfaff <blp@cs.stanford.edu>
Acked-by: Hans J. Koch <hjk@linutronix.de>
Reviewed-by: Finn Thain <fthain@telegraphics.com.au>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Add WQ_MEM_RECLAIM flag which currently maps to WQ_RESCUER, mark
WQ_RESCUER as internal and replace all external WQ_RESCUER usages to
WQ_MEM_RECLAIM.
This makes the API users express the intent of the workqueue instead
of indicating the internal mechanism used to guarantee forward
progress. This is also to make it cleaner to add more semantics to
WQ_MEM_RECLAIM. For example, if deemed necessary, memory reclaim
workqueues can be made highpri.
This patch doesn't introduce any functional change.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Steven Whitehouse <swhiteho@redhat.com>
libata depends on scsi_host_template for module reference counting and
sht's should be owned by each low level driver. During libahci split,
the sht was left with libahci.ko leaving the actual low level drivers
not reference counted. This made ahci and ahci_platform always
unloadable even while they're being actively used.
Fix it by defining AHCI_SHT() macro in ahci.h and defining a sht for
each low level ahci driver.
stable: only applicable to 2.6.35.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Pedro Francisco <pedrogfrancisco@gmail.com>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Keep track of the link on the which the current request is in progress.
It allows support of links behind port multiplier.
Not all libata-sff is PMP compliant. Code for native BMDMA controller
does not take in accound PMP.
Tested on Marvell 7042 and Sil7526.
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
For some mysterious reason, certain hardware reacts badly to usual EH
actions while the system is going for suspend. As the devices won't
be needed until the system is resumed, ask EH to skip usual autopsy
and recovery and proceed directly to suspend.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tested-by: Stephan Diestelhorst <stephan.diestelhorst@amd.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the Intel Patsburg (PCH) SATA AHCI and RAID Controller
DeviceIDs.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds the Intel Patsburg (PCH) IDE mode SATA Controller DeviceIDs.
Signed-off-by: Seth Heasley <seth.heasley@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 978c0666 (libata: Remove excess delay in the tf_load path)
removed ata_wait_idle() from ata_sff_tf_load() and via_tf_load().
This caused obscure detection problems in sata_sil.
https://bugzilla.kernel.org/show_bug.cgi?id=16606
The commit was pure performance optimization. Revert it for now.
Reported-by: Dieter Plaetinck <dieter@plaetinck.be>
Reported-by: Jan Beulich <JBeulich@novell.com>
Bisected-by: gianluca <gianluca@sottospazio.it>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ahci_do_softreset() compared the current time and deadline in reverse
when calculating timeout for SRST issue. The result is that if
@deadline is in future, SRST is issued with 0 timeout, which hasn't
caused any problem because it later waits for DRDY with the correct
timeout. If deadline is already exceeded by the time SRST is about to
be issued, the timeout calculation underflows and if the device
doesn't respond, timeout doesn't trigger for a _very_ long time.
Reverse the incorrect comparison order.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Anssi Hannula <anssi.hannula@iki.fi>
Tested-by: Gwendal Grignou <gwendal@google.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
x % 1 always evaluates to 0, which clearly isn't the intent. The
author probably had "% 2" or "& 1" in mind, and mispelled it.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Remove harmful BUG_ON() from ata_bmdma_qc_issue(),
as it casts too wide of a net and breaks sata_mv.
It also crashes the kernel while doing the BUG_ON().
There's already a WARN_ON_ONCE() further down to catch
the case of POLLING for a BMDMA operation.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
Fix DSM/TRIM commands in sata_mv (v2).
These need to be issued using old-school "BM DMA",
rather than via the EDMA host queue.
Since the chips don't have proper BM DMA status,
we need to be more careful with setting the ATA_DMA_INTR bit,
since DSM/TRIM often has a long delay between "DMA complete"
and "command complete".
GEN_I chips don't have BM DMA, so no TRIM for them.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
ata_qc_issue() BUG_ON()s on data commands w/o data, which may be
submitted via SG_IO. Be less of a drama queen and just trigger
WARN_ON_ONCE() and fail the command with AC_ERR_SYSTEM.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Stefan Hübner <stefan.huebner@stud.tu-ilmenau.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
dma_dwc_xfer_setup() returns an int and "dma_chan" needs to be signed
for the error handling to work.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
88SE9128 can do FBS and sets it in HOST_CAP but forgets to set FBSCP
in PORT_CMD. Implement AHCI_HFLAG_YES_FBS and apply it to 88SE9128.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Winbond W83759A controller is fully supported by pata_legacy driver
so remove no longer needed pata_winbond driver.
Leave PATA_WINBOND_VLB config option for compatibility reasons
and teach pata_legacy to preserve the old behavior of pata_winbond
driver.
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit d62f5576 (pata_cmd64x: fix handling of address setup timings)
incorrectly called ata_timing_compute() on UDMA mode on 0 @UT leading
to devide by zero fault. Revert it until better fix is available.
This is reported in bko#16607 by Milan Kocian who also root caused it.
https://bugzilla.kernel.org/show_bug.cgi?id=16607
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-root-caused-by: Milan Kocian <milan.kocian@wq.cz>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Some minor improvements in error handling, but overall it was mostly dead
code.
Signed-off-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Len Brown <len.brown@intel.com>
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (226 commits)
ARM: 6323/1: cam60: don't use __init for cam60_spi_{flash_platform_data,partitions}
ARM: 6324/1: cam60: move cam60_spi_devices to .init.data
ARM: 6322/1: imx/pca100: Fix name of spi platform data
ARM: 6321/1: fix syntax error in main Kconfig file
ARM: 6297/1: move U300 timer to dynamic clock lookup
ARM: 6296/1: clock U300 intcon and timer properly
ARM: 6295/1: fix U300 apb_pclk split
ARM: 6306/1: fix inverted MMC card detect in U300
ARM: 6299/1: errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID
ARM: 6294/1: etm: do a dummy read from OSSRR during initialization
ARM: 6292/1: coresight: add ETM management registers
ARM: 6288/1: ftrace: document mcount formats
ARM: 6287/1: ftrace: clean up mcount assembly indentation
ARM: 6286/1: fix Thumb-2 decompressor broken by "Auto calculate ZRELADDR"
ARM: 6281/1: video/imxfb.c: allow usage without BACKLIGHT_CLASS_DEVICE
ARM: 6280/1: imx: Fix build failure when including <mach/gpio.h> without <linux/spinlock.h>
ARM: S5PV210: Fix on missing s3c-sdhci card detection method for hsmmc3
ARM: S5P: Fix on missing S5P_DEV_FIMC in plat-s5p/Kconfig
ARM: S5PV210: Override FIMC driver name on Aquila board
ARM: S5PC100: enable FIMC on SMDKC100
...
Fix up conflicts in arch/arm/mach-{s5pc100,s5pv210}/cpu.c due to
different subsystem 'setname' calls, and trivial port types in
include/linux/serial_core.h
'make htmldocs' has a fatal error when processing libata.xml, as seen
below. The string "Example patterns:" (or any string with "example.*:"
in it AFAIK) causes some part of the doc generation tool chain to try to
produce an <informalexample> block without a beginning <para>, but
there is an ending </para> generated, which throws things out of kilter.
I don't even know where (what program) this is happening in.
I searched in docproc and xmlto and in some XML stylesheets without
finding anything. If anyone can give me pointers about this, please do.
Until this is fixed, let's just spell "Example" as "Sample"
and match up the double quotation marks while there.
Documentation/DocBook/libata.xml:6575: parser error : Opening and ending tag mismatch: programlisting line 6573 and para
</para><para>
^
Documentation/DocBook/libata.xml:6580: parser error : Opening and ending tag mismatch: para line 6575 and programlisting
</programlisting></informalexample>
^
unable to parse Documentation/DocBook/libata.xml
make[2]: *** [Documentation/DocBook/libata.html] Error 1
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* 'for-2.6.36' of git://git.kernel.dk/linux-2.6-block: (149 commits)
block: make sure that REQ_* types are seen even with CONFIG_BLOCK=n
xen-blkfront: fix missing out label
blkdev: fix blkdev_issue_zeroout return value
block: update request stacking methods to support discards
block: fix missing export of blk_types.h
writeback: fix bad _bh spinlock nesting
drbd: revert "delay probes", feature is being re-implemented differently
drbd: Initialize all members of sync_conf to their defaults [Bugz 315]
drbd: Disable delay probes for the upcomming release
writeback: cleanup bdi_register
writeback: add new tracepoints
writeback: remove unnecessary init_timer call
writeback: optimize periodic bdi thread wakeups
writeback: prevent unnecessary bdi threads wakeups
writeback: move bdi threads exiting logic to the forker thread
writeback: restructure bdi forker loop a little
writeback: move last_active to bdi
writeback: do not remove bdi from bdi_list
writeback: simplify bdi code a little
writeback: do not lose wake-ups in bdi threads
...
Fixed up pretty trivial conflicts in drivers/block/virtio_blk.c and
drivers/scsi/scsi_error.c as per Jens.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (55 commits)
workqueue: mark init_workqueues() as early_initcall()
workqueue: explain for_each_*cwq_cpu() iterators
fscache: fix build on !CONFIG_SYSCTL
slow-work: kill it
gfs2: use workqueue instead of slow-work
drm: use workqueue instead of slow-work
cifs: use workqueue instead of slow-work
fscache: drop references to slow-work
fscache: convert operation to use workqueue instead of slow-work
fscache: convert object to use workqueue instead of slow-work
workqueue: fix how cpu number is stored in work->data
workqueue: fix mayday_mask handling on UP
workqueue: fix build problem on !CONFIG_SMP
workqueue: fix locking in retry path of maybe_create_worker()
async: use workqueue for worker pool
workqueue: remove WQ_SINGLE_CPU and use WQ_UNBOUND instead
workqueue: implement unbound workqueue
workqueue: prepare for WQ_UNBOUND implementation
libata: take advantage of cmwq and remove concurrency limitations
workqueue: fix worker management invocation without pending works
...
Fixed up conflicts in fs/cifs/* as per Tejun. Other trivial conflicts in
include/linux/workqueue.h, kernel/trace/Kconfig and kernel/workqueue.c
Remove the current bio flags and reuse the request flags for the bio, too.
This allows to more easily trace the type of I/O from the filesystem
down to the block driver. There were two flags in the bio that were
missing in the requests: BIO_RW_UNPLUG and BIO_RW_AHEAD. Also I've
renamed two request flags that had a superflous RW in them.
Note that the flags are in bio.h despite having the REQ_ name - as
blkdev.h includes bio.h that is the only way to go for now.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Remove all the trivial wrappers for the cmd_type and cmd_flags fields in
struct requests. This allows much easier grepping for different request
types instead of unwinding through macros.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: avoid buffer overflow in pcmcia_setup_isa_irq
pcmcia: do not request windows if you don't need to
pcmcia: insert PCMCIA device resources into resource tree
pcmcia: export resource information to sysfs
pcmcia: use struct resource for PCMCIA devices, part 2
pcmcia: remove memreq_t
pcmcia: move local definitions out of include/pcmcia/cs.h
pcmcia: do not use io_req_t when calling pcmcia_request_io()
pcmcia: do not use io_req_t after call to pcmcia_request_io()
pcmcia: use struct resource for PCMCIA devices
pcmcia: clean up cs.h
pcmcia: use pcmica_{read,write}_config_byte
pcmcia: remove cs_types.h
pcmcia: remove unused flag, simplify headers
pcmcia: remove obsolete CS_EVENT_ definitions
pcmcia: split up central event handler
pcmcia: simplify event callback
pcmcia: remove obsolete ioctl
Conflicts in:
- drivers/staging/comedi/drivers/*
- drivers/staging/wlags49_h2/wl_cs.c
due to dev_info_t and whitespace changes
of_device is just an alias for platform_device, so remove it entirely. Also
replace to_of_device() with to_platform_device() and update comment blocks.
This patch was initially generated from the following semantic patch, and then
edited by hand to pick up the bits that coccinelle didn't catch.
@@
@@
-struct of_device
+struct platform_device
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: David S. Miller <davem@davemloft.net>
Make the following changes to prepare for NCQ command completion
update. Changes made by this patch don't cause any functional
difference.
* sata_fsl_host_intr(): rename the local variable qc_active to
done_mask as that's what it is.
* mv_process_crpb_response(): restructure if clause for easier update.
* nv_adma_interrupt(): drop unnecessary error variable.
* nv_swncq_sdbfis(): drop unnecessary nr_done and return 0 on success.
Typo fix.
* nv_swncq_dmafis(): drop unused return value and return void.
* nv_swncq_host_interrupt(): drop unnecessary return value handling.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ashish Kalra <ashish.kalra@freescale.com>
Cc: Saeed Bishara <saeed@marvell.com>
Cc: Mark Lord <liml@rtr.ca>
Cc: Robert Hancock <hancockr@shaw.ca>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch converts pci_table entries, where .subvendor=PCI_ANY_ID and
.subdevice=PCI_ANY_ID, .class=0 and .class_mask=0, to use the
PCI_VDEVICE macro, and thus improves readability.
Signed-off-by: Peter Huewe <peterhuewe@gmx.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
SIDPR window registers are shared across ports and as each access is
done in two steps, accesses to different ports under EH may race.
This primarily is caused by incorrect host locking in EH context and
should be fixed by defining locking requirements for each EH operation
which can be used during EH and enforcing them but for now work around
the problem by adding a dedicated SIDPR lock and grabbing it for each
SIDPR access.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Mark Knecht <markknecht@gmail.com>
Reported-by: Paul Check <paul@thechecks.ca>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Take further advantage of the new glob_match() function to reduce
the blacklist size, this time making use of "character ranges" in
the patterns.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Enable use of hyphenated pattern ranges in glob_match(), similar to how
shell globbing works, and how developers might expect things to work.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 1529c69adc (ata_generic: implement ATA_GEN_* flags and force
enable DMA on MBP 7,1) implemented ATA_GEN_FORCE_DMA for forcing DMA
mode and applied it to CENATEK but forgot to remove the original hard
coded logic. This is removal of redundant logic and doesn't affect
correctness.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The below patch casts ATA_MAX_QUEUE to int because GCC will
give a warning message about the two different enum blocks:
CC drivers/ata/ahci.o
drivers/ata/ahci.c: In function 'ahci_init_one':
drivers/ata/ahci.c:1045:2: warning: comparison between 'enum <anonymous>' and 'enum <anonymous>'
Signed-off-by: Justin P. Mattock <justinmattock@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Adds support for the Samsung PATA controller. This driver is based
on the Libata subsystem and references the earlier patches sent for
IDE subsystem.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Acked-by: Sergei Shtylyov <sshtylyov@mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch enables the on-chip DWC SATA controller of the AppliedMicro
processor 460EX.
Signed-off-by: Rupjyoti Sarmah <rsarmah@appliedmicro.com>
Signed-off-by: Mark Miesfeld <mmiesfeld@appliedmicro.com>
Signed-off-by: Prodyut Hazarika <phazarika@appliedmicro.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Take further advantage of the new glob_match() function to reduce
the blacklist size. There are even more savings possible, but how
far do we want to go with this?
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Take advantage of the new glob_match() function to reduce the blacklist
size somewhat. There are further savings possible, but these are
the most obvious biggies.
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Replace rudimentry pattern matching with more capable shell-style globbing.
This will enable shrinking ata_device_blacklist[] table in subsequent patches,
and helps with future editions to the table, such as matching only the end
of a firmware revision string etc..
Signed-off-by: Mark Lord <mlord@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The driver is using platform_driver_probe() during initialization,
so ahci_driver.probe hook is never used.
But it causes the following (harmless, luckily) section mismatch:
WARNING: vmlinux.o(.data+0x2fb20): Section mismatch in reference
from the variable ahci_driver to the function .init.text:ahci_probe()
This patch removes the ahci_driver.probe assignment, thus fixes
the warning.
p.s. Note that there's another patch[1] from Rene Bolldorf that
tried to solve the same issue by __refdata annotation. __refdata
says that this reference is actually OK, but in fact it is not OK,
because dereferencing .probe() will cause problems. So the proper
fix is to remove the assignment.
[1] http://kerneltrap.org/mailarchive/linux-kernel/2010/3/18/4549547
Signed-off-by: Anton Vorontsov <avorontsov@mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Some AHCI implementations may use Vendor Specific HBA[A0h, FFh]
and/or Port[70h, 7Fh] registers to 'prepare' for initialization.
For that, the platform needs memory mapped address of AHCI registers.
This patch adds the 'mmio' argument and reorders the call to
platform init function.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
libata has two concurrency related limitations.
a. ata_wq which is used for polling PIO has single thread per CPU. If
there are multiple devices doing polling PIO on the same CPU, they
can't be executed simultaneously.
b. ata_aux_wq which is used for SCSI probing has single thread. In
cases where SCSI probing is stalled for extended period of time
which is possible for ATAPI devices, this will stall all probing.
#a is solved by increasing maximum concurrency of ata_wq. Please note
that polling PIO might be used under allocation path and thus needs to
be served by a separate wq with a rescuer.
#b is solved by using the default wq instead and achieving exclusion
via per-port mutex.
Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
IDE mode of MCP89 on MBP 7,1 doesn't set DMA enable bits in the BMDMA
status register. Make the following changes to work around the problem.
* Instead of using hard coded 1 in id->driver_data as class code
match, use ATA_GEN_CLASS_MATCH and carry the matched id in
host->private_data.
* Instead of matching PCI_VENDOR_ID_CENATEK, use ATA_GEN_FORCE_DMA
flag in id instead.
* Add ATA_GEN_FORCE_DMA to the id entry of MBP 7,1.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Cc: stable@kernel.org
Reported-by: Anders Østhus <grapz666@gmail.com>
Reported-by: Andreas Graf <andreas_graf@csgraf.de>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Reported-by: Damien Cassou <damien.cassou@gmail.com>
Reported-by: tixetsal@juno.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
For yet unknown reason, MCP89 on MBP 7,1 doesn't work w/ ahci under
linux but the controller doesn't require explicit mode setting and
works fine with ata_generic. Make ahci ignore the controller on MBP
7,1 and let ata_generic take it for now.
Reported in bko#15923.
https://bugzilla.kernel.org/show_bug.cgi?id=15923
NVIDIA is investigating why ahci mode doesn't work.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Cc: stable@kernel.org
Reported-by: Anders Østhus <grapz666@gmail.com>
Reported-by: Andreas Graf <andreas_graf@csgraf.de>
Reported-by: Benoit Gschwind <gschwind@gnu-log.net>
Reported-by: Damien Cassou <damien.cassou@gmail.com>
Reported-by: tixetsal@juno.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
In function ahci_store_em_buffer(), if the input (signed char*) buffer
contains negative data, the constructed 32-bit long message data may
be wrong.
Signed-off-by: Harry Zhang <harry.zhang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds a driver for a harddrive attached to PXA address and data bus.
Unlike pata_platform, this driver allows usage of PXA DMA controller, making the
transmission speed 3x higher.
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Acked-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
The data in the cmd_block buffers may reach the main memory after the
writel() to the device ports. This patch introduces two calls to wmb()
to ensure the relative ordering.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Colin Tuckley <colin.tuckley@arm.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
cb->atapi.cdb is an array of 16 u8 elements. The call too memset()
would set the first part of the sge array to zero as well. It's not
a packed struct.
This one has been around for five years. I found it with Smatch. I
think the reason no one has seen it before is because we normally call
sil24_fill_sg() and that overwrites sge with proper information?
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 96d60303fd (ahci: Turn off DMA engines when there's no device)
implemented stopping DMA engines on empty ports but it used single
sampling of status registers to determine device presence which led to
disabling of DMA engines on occupied ports. Do it after all EH
actions are complete using device presence state determined by EH.
This avoids spurious disabling of DMA engines and simplifies the code.
Signed-off-by: Tejun Heo <tj@kernel.org>
Tested-by: Marc Dionne <marc.c.dionne@gmail.com>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Robert Hancock <hancockrwd@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The sata_sil24 driver has six 16-bit registers that are initialised with
32-bit writes. This cause a kernel panic on ARM due to the unaligned
accesses which result.
This patch changes the accesses to the correct 16-bit ones.
Signed-off-by: Colin Tuckley <colin.tuckley@arm.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add Joseph Chan's explanation of the problem and workaround to the
VT6421 magic fix.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Joseph Chan <JosephChan@via.com.tw>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
libata: implement on-demand HPA unlocking
libata: use the enlarged capacity after late HPA unlock
SCSI: implement sd_unlock_native_capacity()
libata-sff: trivial corrections to Kconfig help text
sata_nv: don't diddle with nIEN on mcp55
sata_via: magic vt6421 fix for transmission problems w/ WD drives
Implement ata_scsi_unlock_native_capacity() which will be called
through SCSI layer when block layer notices that partitions on a
device extend beyond the end of the device. It requests EH to unlock
HPA, waits for completion and returns the current device capacity.
This allows libata to unlock HPA on demand instead of having to decide
whether to unlock upfront. Unlocking on demand is safer than
unlocking by upfront because some BIOSes write private data to the
area beyond HPA limit. This was suggested by Ben Hutchings.
Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
After late HPA unlock, libata kept using the original capacity
ignoring the new larger native capacity. Enlarging device on the fly
doesn't cause any harm. Use the larger native capacity instead. This
will enable on-demand HPA unlocking.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On mcp55, nIEN gets stuck once set and liteon blueray rom iHOS104-08
violates ATA specification and fails to set I on D2H Reg FIS if nIEN
is set when the command was issued. When the other party is following
the spec, both devices can work fine but when the two flaws are put
together, they can't talk to each other.
mcp55 has its own IRQ masking mechanism and there's no reason to mess
with nIEN in the first place. Fix it by dropping nIEN diddling from
nv_mcp55_freeze/thaw().
This was originally reported by Cengiz. Although Cengiz hasn't
verified the fix yet, I could reproduce this problem and verfiy the
fix. Even if Cengiz is experiencing different or additional problems,
this patch is needed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Cengiz Günay <cgunay@emory.edu>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
vt6421 has problems talking to recent WD drives. It causes a lot of
transmission errors while high bandwidth transfer as reported in the
following bugzilla entry.
https://bugzilla.kernel.org/show_bug.cgi?id=15173
Joseph Chan provided the following fix. I don't have any idea what it
does but I can verify the issue is gone with the patch applied.
Signed-off-by: Tejun Heo <tj@kernel.org>
Originally-from: Joseph Chan <JosephChan@via.com.tw>
Reported-by: Jorrit Tijben <sjorrit@gmail.com>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Grant patches added an of mach table to struct device_driver. However,
while he changed the macio device code to use that, he left the match
table pointer in struct macio_driver and didn't update drivers to use
the "new" one, thus breaking the probing.
This completes the change by moving all drivers to setup the "new"
one, removing all traces of the old one, and while at it (since it
changes the exact same locations), I also remove two other duplicates
from struct driver which are the name and owner fields.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Add dump_id libata.force parameter. If specified, libata dumps full
IDENTIFY data during device configuration. This is to aid debugging.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Larry Baker <baker@usgs.gov>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
There are ATAPI devices which raise AN when hit by commands issued by
open(). This leads to infinite loop of AN -> MEDIA_CHANGE uevent ->
udev open() to check media -> AN.
Both ACS and SerialATA standards don't define in which case ATAPI
devices are supposed to raise or not raise AN. They both list media
insertion event as a possible use case for ATAPI ANs but there is no
clear description of what constitutes such events. As such, it seems
a bit too naive to export ANs directly to userland as MEDIA_CHANGE
events without further verification (which should behave similarly to
windows as it apparently is the only thing that some hardware vendors
are testing against).
This patch adds libata.atapi_an module parameter and disables ATAPI AN
by default for now.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Kay Sievers <kay.sievers@vrfy.org>
Cc: Nick Bowler <nbowler@elliptictech.com>
Cc: David Zeuthen <david@fubar.dk>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Make BMDMA optional depending on new config variable CONFIG_ATA_BMDMA.
In Kconfig, drivers are grouped into five groups - non-SFF native, SFF
w/ custom DMA interface, SFF w/ BMDMA, PIO-only SFF, and generic
fallback / legacy ones. Kconfig and Makefile are reorganized
according to the groups and ordered alphabetically inside each group.
ata_ioports.bmdma_addr and ata_port.bmdma_prd[_dma] are put into
CONFIG_ATA_BMDMA, as are all bmdma related ops, variables and
functions.
This increase the binary size slightly when BMDMA is enabled but on
both native-only and PIO-only configurations the size is slightly
reduced. Either way, the size difference is insignificant. This
change is more meaningful to signify the separation between SFF and
BMDMA and as a tool to verify the separation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Now that SFF and BMDMA are completely separate, sata_qstor and
pata_octeon_cf which inherit from ata_sff_port_ops don't need to worry
about BMDMA ops being called. Kill the dummy BMDMA ops.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Separate out ata_pci_bmdma_prepare_host() and ata_pci_bmdma_init_one()
from their SFF counterparts. SFF ones no longer try to initialize
BMDMA or set PCI master.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Separate out BMDMA irq handler from SFF irq handler. The misnamed
host_intr() functions are renamed to ata_sff_port_intr() and
ata_bmdma_port_intr(). Common parts are factored into
__ata_sff_port_intr() and __ata_sff_interrupt() and used by sff and
bmdma interrupt routines.
All BMDMA drivers now use ata_bmdma_interrupt() or
ata_bmdma_port_intr() while all non-BMDMA SFF ones use
ata_sff_interrupt() or ata_sff_port_intr().
For now, ata_pci_sff_init_one() uses ata_bmdma_interrupt() as it's
used by both SFF and BMDMA drivers.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_sff_irq_clear() is BMDMA specific. Rename it to
ata_bmdma_irq_clear(), move it to ata_bmdma_port_ops and make
->sff_irq_clear() optional.
Note: ata_bmdma_irq_clear() is actually only needed by ata_piix and
possibly by sata_sil. This should be moved to respective low
level drivers later.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Now that BMDMA EH ops are separated out from SFF ops, mv5_ops doesn't
have to explicitly reset ->error_handler() and ->post_internal_cmd().
Drop them.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.
Conflicts:
drivers/i2c/busses/i2c-cpm.c
drivers/i2c/busses/i2c-mpc.c
drivers/net/gianfar.c
Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
.name, .match_table and .owner are duplicated in both of_platform_driver
and device_driver. This patch is a removes the extra copies from struct
of_platform_driver and converts all users to the device_driver members.
This patch is a pretty mechanical change. The usage model doesn't change
and if any drivers have been missed, or if anything has been fixed up
incorrectly, then it will fail with a compile time error, and the fixup
will be trivial. This patch looks big and scary because it touches so
many files, but it should be pretty safe.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Sean MacLennan <smaclennan@pikatech.com>
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (49 commits)
libata-sff: separate out BMDMA qc_issue
libata-sff: prd is BMDMA specific
libata-sff: ata_sff_[dumb_]qc_prep are BMDMA specific
libata-sff: separate out BMDMA EH
libata-sff: port_task is SFF specific
libata-sff: ap->[last_]ctl are SFF specific
libata-sff: rename ap->ops->drain_fifo() to sff_drain_fifo()
libata-sff: introduce ata_sff_init/exit() and ata_sff_port_init()
libata-sff: clean up BMDMA initialization
libata-sff: clean up inheritance in several drivers
libata-sff: reorder SFF/BMDMA functions
sata_inic162x: kill PORT_PRD_ADDR initialization
libata: kill ATA_FLAG_DISABLED
libata-sff: kill unused prototype and make ata_dev_select() static
libata-sff: update bmdma host bus error handling
sata_mv: remove unnecessary initialization
sata_inic162x: inic162x is not dependent on CONFIG_ATA_SFF
pata_sch: use ata_pci_sff_init_one()
pata_sil680: Do our own exec_command posting
libata: Remove excess delay in the tf_load path
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (44 commits)
vlynq: make whole Kconfig-menu dependant on architecture
add descriptive comment for TIF_MEMDIE task flag declaration.
EEPROM: max6875: Header file cleanup
EEPROM: 93cx6: Header file cleanup
EEPROM: Header file cleanup
agp: use NULL instead of 0 when pointer is needed
rtc-v3020: make bitfield unsigned
PCI: make bitfield unsigned
jbd2: use NULL instead of 0 when pointer is needed
cciss: fix shadows sparse warning
doc: inode uses a mutex instead of a semaphore.
uml: i386: Avoid redefinition of NR_syscalls
fix "seperate" typos in comments
cocbalt_lcdfb: correct sections
doc: Change urls for sparse
Powerpc: wii: Fix typo in comment
i2o: cleanup some exit paths
Documentation/: it's -> its where appropriate
UML: Fix compiler warning due to missing task_struct declaration
UML: add kernel.h include to signal.c
...
Separate out ata_bmdma_qc_issue() from ata_sff_qc_issue() such that
ata_sff_qc_issue() only deals with non-BMDMA SFF protocols (PIO and
nodata) while ata_bmdma_qc_issue() deals with the BMDMA protocols and
uses ata_sff_qc_issue() for non-DMA commands. All the users are
updated accordingly.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
struct ata_prd and ap->prd are BMDMA specific. Add bmdma_ prefix to
them and move them inside CONFIG_ATA_SFF.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Both qc_prep functions deal only with BMDMA PRD setup and PIO only SFF
drivers don't need them. Rename to ata_bmdma_[dumb_]qc_prep() and
relocate.
All usages are renamed except for pdc_adma and sata_qstor. Those two
drivers are not BMDMA drivers and don't need to call BMDMA qc_prep
functions. Calls to ata_sff_qc_prep() in the two drivers are removed.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Some of error handling logic in ata_sff_error_handler() and all of
ata_sff_post_internal_cmd() are for BMDMA. Create
ata_bmdma_error_handler() and ata_bmdma_post_internal_cmd() and move
BMDMA part into those.
While at it, change DMA protocol check to ata_is_dma(), fix
post_internal_cmd to call ap->ops->bmdma_stop instead of directly
calling ata_bmdma_stop() and open code hardreset selection so that
ata_std_error_handler() doesn't have to know about sff hardreset.
As these two functions are BMDMA specific, there's no reason to check
for bmdma_addr before calling bmdma methods if the protocol of the
failed command is DMA. sata_mv and pata_mpc52xx now don't need to set
.post_internal_cmd to ATA_OP_NULL and pata_icside and sata_qstor don't
need to set it to their bmdma_stop routines.
ata_sff_post_internal_cmd() becomes noop and is removed.
This fixes p3 described in clean-up-BMDMA-initialization patch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
port_task is tightly bound to the standard SFF PIO HSM implementation.
Using it for any other purpose would be error-prone and there's no
such user and if some drivers need such feature, it would be much
better off using its own. Move it inside CONFIG_ATA_SFF and rename it
to sff_pio_task.
The only function which is exposed to the core layer is
ata_sff_flush_pio_task() which is renamed from ata_port_flush_task()
and now also takes care of resetting hsm_task_state to HSM_ST_IDLE,
which is possible as it's now specific to PIO HSM.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ap->[last_]ctl are specific to SFF controllers. Put them inside
CONFIG_ATA_SFF and move initialization into ata_sff_port_init().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
In preparation of proper SFF/BMDMA separation, introduce
ata_sff_init/exit() and ata_sff_port_init(). These functions
currently don't do anything.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
When BMDMA initialization failed or BMDMA was not available for
whatever reason, bmdma_addr was left at zero and used as an indication
that BMDMA shouldn't be used. This leads to the following problems.
p1. For BMDMA drivers which don't use traditional BMDMA register,
ata_bmdma_mode_filter() incorrectly inhibits DMA modes. Those
drivers either have to inherit from ata_sff_port_ops or clear
->mode_filter explicitly.
p2. non-BMDMA drivers call into BMDMA PRD table allocation. It
doesn't actually allocate PRD table if bmdma_addr is not
initialized but is still confusing.
p3. For BMDMA drivers which don't use traditional BMDMA register, some
methods might not be invoked as expected (e.g. bmdma_stop from
ata_sff_post_internal_cmd()).
p4. SFF drivers w/ custom DMA interface implement noop BMDMA ops
worrying libata core might call into one of them.
These problems are caused by the muddy line between SFF and BMDMA and
the assumption that all BMDMA controllers initialize bmdma_addr.
This patch fixes p1 and p2 by removing the bmdma_addr assumption and
moving prd allocation to BMDMA port start. Later patches will fix the
remaining issues.
This patch improves BMDMA initialization such that
* When BMDMA register initialization fails, falls back to PIO instead
of failing. ata_pci_bmdma_init() never fails now.
* When ata_pci_bmdma_init() falls back to PIO, it clears
ap->mwdma_mask and udma_mask instead of depending on
ata_bmdma_mode_filter(). This makes ata_bmdma_mode_filter()
unnecessary thus resolving p1.
* ata_port_start() which actually is BMDMA specific is moved to
ata_bmdma_port_start(). ata_port_start() and ata_sff_port_start()
are killed.
* ata_sff_port_start32() is moved and renamed to
ata_bmdma_port_start32().
Drivers which no longer call into PRD table allocation are...
pdc_adma, sata_inic162x, sata_qstor, sata_sx4, pata_cmd640 and all
drivers which inherit from ata_sff_port_ops.
pata_icside sets ->port_start to ATA_OP_NULL as it doesn't need PRD
but is a BMDMA controller and doesn't have custom port_start like
other such controllers.
Note that with the previous patch which makes all and only BMDMA
drivers inherit from ata_bmdma_port_ops, this change doesn't break
drivers which need PRD table.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
1. pata_cmd640 is PIO only. Inherit from sff.
2. pata_macio is BMDMA. Inherit from bmdma and drop explicit
bmdma_mode_filter() setting.
3. In sata_mv, unlike mv5, mv6 is BMDMA. Inherit from bmdma and
don't clear ->post_internal_cmd().
4. bf54x and icside are quasi-BMDMA controllers which don't use the
standard BMDMA registers so they don't initialize bmdma_addr and
inherit from sff to avoid the default mode_filter which disables
DMA modes if bmdma_addr is not initialized.
For 2 and 3, this patch makes the drivers explicitly specify
->mode_filter to ATA_OP_NULL while inheriting from ata_bmdma_port_ops.
These will be removed by the next patch.
This patch makes all and only BMDMA drivers inherit from
ata_bmdma_port_ops to ease further SFF/BMDMA separation.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The following structure elements duplicate the information in
'struct device.of_node' and so are being eliminated. This patch
makes all readers of these elements use device.of_node instead.
(struct of_device *)->node
(struct dev_archdata *)->prom_node (sparc)
(struct dev_archdata *)->of_node (powerpc & microblaze)
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reorder functions such that SFF and BMDMA functions are grouped.
While at it, s/BMDMA/SFF in a few comments where it actually meant
SFF.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
sata_inic162x doesn't use PRD anymore. No need to initialize it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ATA_FLAG_DISABLED is only used by drivers which don't use
->error_handler framework and is largely broken. Its only meaningful
function is to make irq handlers skip processing if the flag is set,
which is largely useless and even harmful as it makes those ports more
likely to cause IRQ storms.
Kill ATA_FLAG_DISABLED and makes the callers disable attached devices
instead. ata_port_probe() and ata_port_disable() which manipulate the
flag are also killed.
This simplifies condition check in IRQ handlers. While updating IRQ
handlers, remove ap NULL check as libata guarantees consecutive port
allocation (unoccupied ports are initialized with dummies) and
long-obsolete ATA_QCFLAG_ACTIVE check (checked by ata_qc_from_tag()).
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ata_irq_on() was renamed to ata_sff_irq_on() and exported a while ago
but prototype for the original function lingered in
drivers/ata/libata.h. Kill it. Also, ata_dev_select() is only used
inside drivers/ata/libata-sff.c. Make it static.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Clearing IRQ from ata_sff_error_handler() is necessary only when the
port is gonna be thawed before performing EH actions and some
controllers don't like being accessed after certain failure modes
until they're reset. Clear IRQ iff the port is being thawed.
* When the controller succesfully indicated bus error, the point of
thawing doesn't matter. Move thawing inside bmdma part of EH. This
is a bit ugly but will ease code reorganization later.
* Remove the unneeded ata_sff_sync().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
sata_mv initializes unused ioports fields including bmdma_addr to
NULL. As later changes will conditionalize BMDMA, this makes sata_mv
unnecessarily dependent on BMDMA. Remove the unnecessary
initialization.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
sata_inic162x no longer uses SFF interface. Move it out of
CONFIG_ATA_SFF.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
pata_sch is standard SFF. No reason to open code init. Use
ata_pci_sff_init_one() instead.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use our own mmio area to avoid PCI posting. This avoids the rather slow
paranoid implementation in the default handler.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
We don't need to stall and wait after loading the task file and before
issuing a command, so don't do it. This shows up on profiles and is not
needed.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
sata_nv was incorrectly using ata_host_activate() instead of
ata_pci_sff_activate_host() leading to IRQ assignment failure in
legacy mode. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Robert Hancock <hancockr@shaw.ca>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
page_mapping() check this via VM_BUG_ON(PageSlab(page)) so we bug here
with the according debuging turned on.
Future TODO: replace this with a flush_dcache_page_for_pio() API
Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Cc: stable@kernel.org
cmd640_hardware_init() reads CFR but doesn't use the value read...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Now, with the introduction of the sff_set_devctl() method, we can
use it in sff_irq_on() method too -- that way its implementations
in 'pata_bf54x' and 'pata_scc' become virtually identical to
ata_sff_irq_on(). The sff_irq_on() method now becomes quite
superfluous, and the only reason not to remove it completely is
the existence of the 'pata_octeon_cf' driver which implements it
as an empty function. Just make the method optional then, with
ata_sff_irq_on() becoming generic taskfile-bound function, still
global for the 'pata_bf54x' driver to be able to call it from its
thaw() and postreset() methods.
While at it, make the sff_irq_on() method and ata_sff_irq_on() return
'void' as the result is always ignored anyway.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The set of libata's taskfile access methods is clearly incomplete as
it lacks a method to write to the device control register -- which
forces drivers like 'pata_bf54x' and 'pata_scc' to implement more
"high level" (and more weighty) methods like freeze() and postreset().
So, introduce the optional sff_set_devctl() method which the drivers
only have to implement if the standard iowrite8() can't be used (just
like the existing sff_check_altstatus() method) and make use of it
in the freeze() and postreset() method implementations (I could also
have used it in softreset() method but it also reads other taskfile
registers without using tf_read() making that quite pointless);
this makes freeze() method implementations in the 'pata_bf54x' and
'pata_scc' methods virtually identical to ata_sff_freeze(), so we
can get rid of them completely.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Add "em_buffer" attribute for SATA AHCI hosts to provide a way for
userland to access AHCI EM (enclosure management) buffer directly if the
host supports EM.
AHCI driver should support SGPIO EM messages. However the SATA/AHCI
specs did not define the SGPIO message format filled in EM buffer.
Different HW vendors may have different definitions. The mainly purpose
of this attribute is to solve this issue by allowing HW vendors to
provide userland drivers and tools for their SGPIO initiators.
Signed-off-by: Harry Zhang <harry.zhang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Detect enclosure management message type automatically at driver
initialization, instead of using module parameter "ahci_em_messages".
Signed-off-by: Harry Zhang <harry.zhang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
The device control register exists and its address is set by scc_setup_ports(),
hence the check is useless...
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
... since, of course, it's not used outside this driver.
Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Use __ratelimit() instead of its own private rate limit implementation.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Jeff Garzik <jgarzik@pobox.com>
Cc: linux-ide@vger.kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
There are some SATA devices which take relatively long to get out of
0xff status after reset. In libata, this timeout is determined by
ATA_TMOUT_FF_WAIT. Quantum GoVault is the worst requring about 2s for
reliable detection. However, because 2s 0xff timeout can introduce
rather long spurious delay during boot, libata has been compromising
at the next longest timeout of 800ms for HHD424020F7SV00 iVDR drive.
Now that parallel scan is in place for common drivers, libata can
afford 2s 0xff timeout. Use 2s 0xff timeout if parallel scan is
enabled.
Please note that the chance of spurious wait is pretty slim w/ working
SCR access so this will only affect SATA controllers w/o SCR access
which isn't too common these days.
Please read the following thread for more information on the GoVault
drive.
http://thread.gmane.org/gmane.linux.ide/14545/focus=14663
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Gary Hade <garyhade@us.ibm.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
In 2009, While running "cache read" performance test of drives behind
SII PMP we encountered a "all 5 drives" timeout on more than 30% of the
machines under test. This patch reduces the rate by a factor of about 70.
Low enough that we didn't care to further investigate the issue.
Performance impact with any sort of "normal" use was ~2%+ CPU and less
than 1% throughput degradation. Worst case impact (cached read) was
6% IOPS reduction. This is with NCQ off (q=1) but I believe FIS based
switching enabled in the SATA driver.
The patch disables "Early ACK" in the 3726 port multiplier.
"Early ACK" is issued when device sends a FIS to the host (via PMP)
and the PMP sends an ACK immediately back to the device - well before
the host gets the response. Under worst case IOPs load (cached read
test) and more than 2 PMPs connected to a 4-port SATA controller,
I suspect the time to service all of the PMPs is exceeding the PMPs
ability to keep track of outstanding FIS it owes the Host. Reducing
the number of PMPs to 2 (or 1) reduces the frequency by several orders
of magnitude. Kudos to Gwendal for initial debugging of this issue.
[Any errors in the description are mine, not his.]
Patch is currently in production on Google servers.
Signed-off-by: Grant Grundler <grundler@google.com>
Signed-off-by: Gwendal Grignou <gwendal@google.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Implicit slab.h inclusion via percpu.h is about to go away. Make sure
gfp.h or slab.h is included as necessary.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
It turns out different generations of MCPs have differing quirks.
* MCP 65-73 : FPDMA AA broken, lies about PMP support, forgets to report NCQ
* MCP 77-79 : FPDMA AA broken, lies about PMP support
* MCP 89 : FPDMA AA broken
Instead of turngin off FPDMA AA on all NVIDIAs, implement
HFLAG_NO_FPDMA_AA, define additional board IDs and apply necessary
quirks.
This fixes bko#15481 and the list of quirks is verified by Peer Chen.
http://bugzilla.kernel.org/show_bug.cgi?id=15481
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
I've prepared a totally simple patch that, if I did it and measured it
correctly, reduces the text size as of the ppc-6xx-size command of
pata-mpc52xx by more than 10%, by reducing the rodata size from 0x4a4
to 0x17e bytes. This is simply done by changing the data types of the
ATA timing constants.
If you are interested at all, and it's worth the trouble, here the
details:
ppc-6xx-size:
text data bss dec hex filename
old: 6532 1068 0 7600 1db0 pata-mpc52xx.o
new: 5718 1068 0 6786 1a82 pata-mpc52xx.o
The (assembler) code itself doesn't really change very much. I double
checked the final results inside mpc52xx-ata-apply-timings() and they
match. The driver is still working fine of course.
Signed-off-by: Roman Fietze <roman.fietze@telemotive.de>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
ahci over time has grown a number of board IDs and it's a bit of mess
right now. Clean it up such that,
* board_id_* now live in a separate enum board_ids and numbers are
assigned automatically.
* Board IDs assigned to features are separated from the ones assigned
to specific implementations and both are ordered alphabetically.
* For NV MCPs, define per-generation alias board_ids and assign
matching aliases in the pci id table. This makes mcp_linux, 67-73
use board_ahci_mcp65 instead of board_ahci_yesncq. Both are
identical in content.
* Kill now unused board_ahci_nopmp and board_ahci_yesncq.
This patch doesn't cause any functional change but will make future
changes to board_ids and quirks much less painful.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
According to section 10.3.1 of the AHCI spec, PxCMD.ST must not be set
unless there's a device attached. Following this saves us a measurable
quantity of power and does not impair hotplug support. Based on a patch
by Kristen Carlson Accardi.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This can be used for AHCI-compatible interfaces implemented inside
System-On-Chip solutions, or AHCI devices connected via localbus.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch should contain no functional changes, just moves code
around.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Factor out some ahci_em_messages handling code from ahci_init_one().
We would like to reuse it for non-PCI devices.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Introduce ahci_pci_print_info() that now handles PCI stuff.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Move PCI stuff into ahci_pci_init_controller().
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
To make the function bus-independand we have to get rid of
"struct pci_dev *", so let's pass just "struct devce *".
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Move PCI stuff into ahci_pci_reset_controller().
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
To make the function generic we have to get rid of "struct pci_dev *",
so let's pass just a "struct devce *".
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Make ahci_save_initial_config() a bit more generic by introducing
force_port_map and mask_port_map arguments.
Move PCI stuff into ahci_pci_save_initial_config().
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Currently the driver uses host->iomap to store all the iomapped BARs
of a PCI device (while AHCI devices actually use just a single memory
window).
We're going to teach AHCI to work with non-PCI buses, so there are two
options to make this work:
1. "fake" host->iomap array for non-PCI devices, and place the needed
address at iomap[AHCI_PCI_BAR];
2. Get rid of host->iomap usage, instead introduce a private mmio
field.
This patch implements the second option.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Instead of the old pcmcia_request_irq() interface, drivers may now
choose between:
- calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq.
- use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will
clean up automatically on calls to pcmcia_disable_device() or
device ejection.
- drivers still not capable of IRQF_SHARED (or not telling us so) may
use the deprecated pcmcia_request_exclusive_irq() for the time
being; they might receive a shared IRQ nonetheless.
CC: linux-bluetooth@vger.kernel.org
CC: netdev@vger.kernel.org
CC: linux-wireless@vger.kernel.org
CC: linux-serial@vger.kernel.org
CC: alsa-devel@alsa-project.org
CC: linux-usb@vger.kernel.org
CC: linux-ide@vger.kernel.org
Signed-off-by: Dominik Brodowski <linux@dominikbrodowski.net>
This patch fixes the bad hashes for one Kingston and one Transcend card.
Thanks to komuro for pointing this out.
Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This patch adds idstrings for Kingston 1GB/4GB and Transcend 4GB/8GB.
Signed-off-by: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
blk_abort_request() expectes queue lock to be held by the caller.
Grab it before calling the function.
Lack of this synchronization led to infinite loop on corrupt
q->timeout_list.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: stable@kernel.org
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Some BIOSes don't configure HPA during boot but do so while resuming.
This causes harddrives to shrink during resume making libata detach
and reattach them. This can be worked around by unlocking HPA if old
size equals native size.
Add ATA_DFLAG_UNLOCK_HPA so that HPA unlocking can be controlled
per-device and update ata_dev_revalidate() such that it sets
ATA_DFLAG_UNLOCK_HPA and fails with -EIO when the above condition is
detected.
This patch fixes the following bug.
https://bugzilla.kernel.org/show_bug.cgi?id=15396
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Oleksandr Yermolenko <yaa.bta@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Crucial said,
Thank you for contacting us. We know that with our M225 line of SSDs
you sometimes need to disable NCQ (native command queuing) to avoid
just the type of errors you're seeing. Our recommendation for the
M225 is to add libata.force=noncq to your Linux kernel boot options,
under the kernel ATA library option.
I have sent your feedback to the engineers working on the C300, and
asked them to please pass it on to the firmware team. I have been
notified that they are in the process of testing and finalizing a
new firmware version, that you can expect to see released around the
end of April. We’ll keep you posted as to when it will be available
for download.
So, turn off NCQ on the drive w/ the current firmware revision.
Reported in the following bug.
https://bugzilla.kernel.org/show_bug.cgi?id=15573
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: lethalwp@scarlet.be
Reported-by: Luke Macken <lmacken@redhat.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
On configurations where IRQ line is shared with a different
controller, spurious IRQs may happen continuously. The message was
put there primarily for debugging anyway. Kill it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
percpu.h is included by sched.h and module.h and thus ends up being
included when building most .c files. percpu.h includes slab.h which
in turn includes gfp.h making everything defined by the two files
universally available and complicating inclusion dependencies.
percpu.h -> slab.h dependency is about to be removed. Prepare for
this change by updating users of gfp and slab facilities include those
headers directly instead of assuming availability. As this conversion
needs to touch large number of source files, the following script is
used as the basis of conversion.
http://userweb.kernel.org/~tj/misc/slabh-sweep.py
The script does the followings.
* Scan files for gfp and slab usages and update includes such that
only the necessary includes are there. ie. if only gfp is used,
gfp.h, if slab is used, slab.h.
* When the script inserts a new include, it looks at the include
blocks and try to put the new include such that its order conforms
to its surrounding. It's put in the include block which contains
core kernel includes, in the same order that the rest are ordered -
alphabetical, Christmas tree, rev-Xmas-tree or at the end if there
doesn't seem to be any matching order.
* If the script can't find a place to put a new include (mostly
because the file doesn't have fitting include block), it prints out
an error message indicating which .h file needs to be added to the
file.
The conversion was done in the following steps.
1. The initial automatic conversion of all .c files updated slightly
over 4000 files, deleting around 700 includes and adding ~480 gfp.h
and ~3000 slab.h inclusions. The script emitted errors for ~400
files.
2. Each error was manually checked. Some didn't need the inclusion,
some needed manual addition while adding it to implementation .h or
embedding .c file was more appropriate for others. This step added
inclusions to around 150 files.
3. The script was run again and the output was compared to the edits
from #2 to make sure no file was left behind.
4. Several build tests were done and a couple of problems were fixed.
e.g. lib/decompress_*.c used malloc/free() wrappers around slab
APIs requiring slab.h to be added manually.
5. The script was run on all .h files but without automatically
editing them as sprinkling gfp.h and slab.h inclusions around .h
files could easily lead to inclusion dependency hell. Most gfp.h
inclusion directives were ignored as stuff from gfp.h was usually
wildly available and often used in preprocessor macros. Each
slab.h inclusion directive was examined and added manually as
necessary.
6. percpu.h was updated not to include slab.h.
7. Build test were done on the following configurations and failures
were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my
distributed build env didn't work with gcov compiles) and a few
more options had to be turned off depending on archs to make things
build (like ipr on powerpc/64 which failed due to missing writeq).
* x86 and x86_64 UP and SMP allmodconfig and a custom test config.
* powerpc and powerpc64 SMP allmodconfig
* sparc and sparc64 SMP allmodconfig
* ia64 SMP allmodconfig
* s390 SMP allmodconfig
* alpha SMP allmodconfig
* um on x86_64 SMP allmodconfig
8. percpu.h modifications were reverted so that it could be applied as
a separate patch and serve as bisection point.
Given the fact that I had only a couple of failures from tests on step
6, I'm fairly confident about the coverage of this conversion patch.
If there is a breakage, it's likely to be something in one of the arch
headers which should be easily discoverable easily on most builds of
the specific arch.
Signed-off-by: Tejun Heo <tj@kernel.org>
Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
When using VT6410/6415/6330 chips on some VIA's platforms, the HDD
connection to VT6410/6415/6330 cannot be detected.
It is because the driver detects wrong via_isa_bridge ID, and then
causes this issue to happen.
Signed-off-by: Joseph Chan <josephchan@via.com.tw>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Commit 27943620cb introduced spurious
IRQ handling but it has a race condition where valid completion can be
lost while trying to clear spurious IRQ leading to occassional command
timeouts.
This patch improves SFF interrupt handler such that
1. Once BMDMA HSM is stopped, the condition is never considered
spurious. As there's no way to resume stopped BMDMA HSM, if device
status doesn't agree with BMDMA status, the only way out is
aborting the command (otherwise, it will just end up timing out).
2. ap->ops->sff_check_status() can be safely called to clear spurious
device IRQ as it atomically returns completion status but BMDMA IRQ
status can't be cleared in safe way if command is in flight. After
a spurious IRQ, call ap->ops->sff_irq_clear() only if the
respective device is idle and retry completion if
sff_check_status() indicates command completion.
Please note that ata_piix uses bmdma_status for sff_irq_check() and #2
won't weaken spurious IRQ handling even with in-flight command because
if bmdma_status indicates IRQ pending but device status is not on
spurious check, the next IRQ handler invocation will abort the command
due to #1.
This fixes bko#15537.
https://bugzilla.kernel.org/show_bug.cgi?id=15537
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Andrew Benton <b3nton@gmail.com>
Cc: Petr Uzel <petr.uzel@centrum.cz>
Cc: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
pp->active_link is not reliable when FBS is enabled.
Both PORT_SCR_ACT and PORT_CMD_ISSUE should be checked
because mixed NCQ and non-NCQ commands may be in flight.
Signed-off-by: Shane Huang <shane.huang@amd.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
HP is recycling both DMI_PRODUCT_NAME and DMI_BIOS_VERSION making
ahci_broken_suspend() trigger for later products which are not
affected by the original problems. Match BIOS date instead of version
and add references to bko's so that full information can be found
easier later.
This fixes http://bugzilla.kernel.org/show_bug.cgi?id=15462
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: tigerfishdaisy@gmail.com
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
bko#15481 shows that we're missing some NVIDIA ahci PCI IDs. Peer
Chen confirms that IDs 0x580-0x58f are reserved for cases where Linux
ID option is selected in the BIOS and are only used for mcp65-73. Add
0x0581-0x058f.
http://bugzilla.kernel.org/show_bug.cgi?id=15481
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Peer Chen <pchen@nvidia.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (38 commits)
sata_via: Delay on vt6420 when starting ATAPI DMA write
ata: Detect Delkin Devices compact flash
pata_efar: Enable parallel scanning
pata_atiixp: enable parallel scan
[libata] pata_atiixp: add locking for parallel scanning
[libata] pata_efar: add locking for parallel scanning
libata: Pass host flags into the pci helper
[libata] pata_marvell: CONFIG_AHCI is really CONFIG_SATA_AHCI
libata: Allow pata_legacy to be built on non-ISA but PCI systems
pata_pdc202xx_old: fix UDMA mode for PDC2026x chipsets
pata_pdc202xx_old: fix UDMA mode for Promise UDMA33 cards
[libata] pata_at91: fix backslash-continued string
pata_via: store UDMA masks in via_isa_bridges table
pata_via: fix address setup timings underlocking
pata_serverworks: fix error message
pata_serverworks: fix PIO setup for the second channel
pata_efar: fix secondary port support
pata_cypress: fix PIO timings underclocking
pata_cs5535: use correct values for PIO1 and PIO2 data timings
pata_cmd64x: remove unused definitions
...
When writing a disc on certain lite-on dvd-writers (also rebadged
as optiarc/LG/...) connected to a vt6420, the ATAPI CDB ends
up in the datastream and on the disc, causing silent corruption.
Delaying between sending the CDB and starting DMA seems to
prevent this.
I do not know if there are burners that do not suffer from
this, but the patch should be safe for those as well.
There are many reports of this issue, but AFAICT no solution was
found before. For example:
http://lkml.indiana.edu/hypermail/linux/kernel/0802.3/0561.html
Signed-off-by: Bart Hartgers <bart.hartgers@gmail.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Again originally proposed by Bartlomiej but this does it by using the
generic helper logic instead.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This was originally proposed by Bartlomiej but as a device specific
expansion of the init_one function rather than making the helper more
generic.
Enable the parallel scan via the generic flags.
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This is similar change as commit 60c3be3 for ata_piix host driver
and while pata_atiixp doesn't enable parallel scan yet the race
could probably also be triggered by requesting re-scanning of both
ports at the same time using SCSI sysfs interface.
[Ported to current tree without other patch dependancies by Alan Cox]
Original is
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
This one is
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
