Commit Graph

33750 Commits

Author SHA1 Message Date
Linus Torvalds
a219ee88b6 Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  sparc: Hook up sys_preadv and sys_pwritev
  sparc64: add_node_ranges() must be __init
  serial: sunsu: sunsu_kbd_ms_init needs to be __devinit
  sparc: Fix section mismatch warnings in cs4231 sound driver.
  sparc64: Fix section mismatch warnings in PCI controller drivers.
  sparc64: Fix section mismatch warnings in power driver.
  sparc64: get_cells() can't be marked __init
2009-04-08 17:43:39 -07:00
Linus Torvalds
72ae9e092c Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux-2.6:
  [IA64] wire up preadv/pwritev system calls
2009-04-08 15:36:42 -07:00
Linus Torvalds
7b85a88ca7 Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6:
  x86 ACPI: Add support for Always Running APIC timer
  ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_only
  ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperf
  ACPICA: delete check for AML access to port 0x81-83
  ACPI: WMI: use .notify method instead of installing handler directly
  sony-laptop: use .notify method instead of installing handler directly
  panasonic-laptop: use .notify method instead of installing handler directly
  fujitsu-laptop: use .notify method instead of installing hotkey handler directly
  fujitsu-laptop: use .notify method instead of installing handler directly
  ACPI: video: use .notify method instead of installing handler directly
  ACPI: thermal: use .notify method instead of installing handler directly
  ACPI battery: fix async boot oops
  ACPI: delete acpi_device.g_list
  NULL noise: drivers/platform/x86/panasonic-laptop.c
  ACPI: cpufreq: remove dupilcated #include
  ACPI: Adjust Kelvin offset to match local implementation
  ACPI: convert acpi_device_lock spinlock to mutex
2009-04-08 15:32:06 -07:00
Linus Torvalds
139ef17a46 Merge master.kernel.org:/home/rmk/linux-2.6-arm
* master.kernel.org:/home/rmk/linux-2.6-arm:
  [ARM] 5446/1: ohci-at91: Limit vbus_pin assignment to the size of the array
  [ARM] 5445/1: AT91: Remove flexible array from USBH platform data
  [ARM] 5447/1: Add SZ_32K
  [ARM] omap: fix omap1 clock usecount decrement bug
  [ARM] pxa: register AC97 controller devices
  [ARM] pxa/csb701: do not register devices on non-csb726 boads
  [ARM] pxa/colibri: get rid of set_irq_type()
  [ARM] pxa/colibri: provide MAC address from ATAG_SERIAL
  [ARM] pxa/cm-x2xx: fix ucb1400 not being registered
  [ARM] pxa: Add support for suspend on PalmTX, T5 and LD
  [ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight
  [ARM] pxa: Palm Tungsten E2 basic support
  [ARM] pxa/em-x270: add libertas device registration
  [ARM] pxa/magician: Enable bq24022 regulator for gpio_vbus and pda_power
2009-04-08 15:24:09 -07:00
Tony Luck
8851d3712a [IA64] wire up preadv/pwritev system calls
Gerd Hoffmann added these to Linux.  Let ia64 use them.

Signed-off-by: Tony Luck <tony.luck@intel.com>
2009-04-08 13:46:14 -07:00
Justin Waters
d0176f612f [ARM] 5445/1: AT91: Remove flexible array from USBH platform data
The flexible array in the USBH platform data is not safe to copy.  The
compiler will not allocate any extra memory for the non-init platform
data structure (in the *_devices.c files) since it isn't given any
defaults at compile time.  When the probe function attempts to address
that array, it will actually attempt to access data in an adjacent
structure.

Since there are currently no (known) implementations of the at91 USBH
IP with more than 2 vbus pins, I am capping the value at 2.  If somebody
tries to assign more, then the compiler will produce a warning.

Signed-off-by: Justin Waters <justin.waters@timesys.com>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Acked-by: Andrew Victor <linux@maxim.org.za>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-08 20:36:16 +01:00
Linus Walleij
8bd239d2ef [ARM] 5447/1: Add SZ_32K
This adds a SZ_32K define to the available sizes. I need it for an
upcoming platform support.

Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2009-04-08 20:35:57 +01:00
David S. Miller
018ef96969 sparc: Hook up sys_preadv and sys_pwritev
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08 03:55:30 -07:00
David S. Miller
01c4538158 sparc64: add_node_ranges() must be __init
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08 03:37:35 -07:00
David S. Miller
9a2ed5cc9e sparc64: Fix section mismatch warnings in PCI controller drivers.
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08 03:28:15 -07:00
David S. Miller
19ab6db66c sparc64: Fix section mismatch warnings in power driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08 03:27:52 -07:00
David S. Miller
6bbc0b08db sparc64: get_cells() can't be marked __init
Signed-off-by: David S. Miller <davem@davemloft.net>
2009-04-08 03:27:38 -07:00
Len Brown
8897c18595 Merge branches 'release', 'APERF', 'ARAT', 'misc', 'kelvin', 'device-lock' and 'bjorn.notify' into release 2009-04-07 18:18:42 -04:00
Venkatesh Pallipadi
db954b5898 x86 ACPI: Add support for Always Running APIC timer
Add support for Always Running APIC timer, CPUID_0x6_EAX_Bit2.
This bit means the APIC timer continues to run even when CPU is
in deep C-states.

The advantage is that we can use LAPIC timer on these CPUs
always, and there is no need for "slow to read and program"
external timers (HPET/PIT) and the timer broadcast logic
and related code in C-state entry and exit.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Acked-by: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07 18:17:51 -04:00
Venkatesh Pallipadi
18b2646fe3 ACPI x86: Make aperf/mperf MSR access in acpi_cpufreq read_only
Do not write zeroes to APERF and MPERF by ondemand governor. With this
change, other users can share these MSRs for reads.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07 18:15:05 -04:00
Venkatesh Pallipadi
e4f6937222 ACPI x86: Cleanup acpi_cpufreq structures related to aperf/mperf
Change structure name to make the code cleaner and simpler. No
functionality change in this patch.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07 18:15:05 -04:00
Linus Torvalds
c93f216b5b Merge branch 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'tracing-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  branch tracer, intel-iommu: fix build with CONFIG_BRANCH_TRACER=y
  branch tracer: Fix for enabling branch profiling makes sparse unusable
  ftrace: Correct a text align for event format output
  Update /debug/tracing/README
  tracing/ftrace: alloc the started cpumask for the trace file
  tracing, x86: remove duplicated #include
  ftrace: Add check of sched_stopped for probe_sched_wakeup
  function-graph: add proper initialization for init task
  tracing/ftrace: fix missing include string.h
  tracing: fix incorrect return type of ns2usecs()
  tracing: remove CALLER_ADDR2 from wakeup tracer
  blktrace: fix pdu_len when tracing packet command requests
  blktrace: small cleanup in blk_msg_write()
  blktrace: NUL-terminate user space messages
  tracing: move scripts/trace/power.pl to scripts/tracing/power.pl
2009-04-07 14:10:10 -07:00
Linus Torvalds
0e26da0f22 Merge branch 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux
* 'i2c-for-2630-v2' of git://aeryn.fluff.org.uk/bjdooks/linux:
  i2c: imx: Make disable_delay a per-device variable
  i2c: xtensa s6000 i2c driver
  powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board
  i2c: i2c-mpc: make I2C bus speed configurable
  i2c: i2c-mpc: use dev based printout function
  i2c: i2c-mpc: various coding style fixes
  i2c: imx: Add missing request_mem_region in probe()
  i2c: i2c-s3c2410: Initialise Samsung I2C controller early
  i2c-s3c2410: Simplify bus frequency calculation
  i2c-s3c2410: sda_delay should be in ns, not clock ticks
  i2c: iMX/MXC support
2009-04-07 08:45:12 -07:00
Sonic Zhang
d307d36ade tty: Blackin CTS/RTS
Both software emulated and hardware based CTS and RTS are enabled in
serial driver.

The CTS RTS PIN connection on BF548 UART port is defined as a modem
device not as a host device.  In order to test it under Linux, please
nake a cross UART cable to exchange CTS and RTS signal.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:44:05 -07:00
Sonic Zhang
6f95570e40 Change hardware flow control from poll to interrupt driven
Only the CTS bit is affected.

Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:44:05 -07:00
Claudio Scordino
6fd1af4cf9 tty: Use the generic RS485 ioctl on CRIS
Use the new general RS485 Linux data structure (introduced by Alan with
commit number c26c56c0f4) in the Cris
architecture too (currently, Cris still uses the old private data
structure instead of the new one).

Signed-off-by: Claudio Scordino <claudio@evidence.eu.com>
Tested-by: Hinko Kocevar <hinko.kocevar@cetrtapot.si>
Tested-by: Janez Cufer <janez.cufer@cetrtapot.si>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:44:05 -07:00
Yang Hongyang
2f4f27d42a dma-mapping: replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24)
Replace all DMA_24BIT_MASK macro with DMA_BIT_MASK(24)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:12 -07:00
Yang Hongyang
284901a90a dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:11 -07:00
Yang Hongyang
50cf156af7 dma-mapping: replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40)
Replace all DMA_40BIT_MASK macro with DMA_BIT_MASK(40)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:10 -07:00
Yang Hongyang
6a35528a83 dma-mapping: replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)
Replace all DMA_64BIT_MASK macro with DMA_BIT_MASK(64)

Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:10 -07:00
Eric Miao
a7bb3909b3 spi: pxa2xx_spi: introduce chipselect GPIO to simplify the common cases
Most SPI peripherals use GPIOs as their chip selects, introduce .gpio_cs
for this.

Signed-off-by: Eric Miao <eric.miao@marvell.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:07 -07:00
Wolfgang Muees
93b61bddc1 Blackfin SPI Driver: Make mmc_spi driver work on Blackfin
1. Rewrite of the non-dma data transfer functions to use only ONE mode
   of TIMOD (TIMOD=0x1).  With TIMOD=0, it was not possible to set the TX
   bit pattern.  So the TDBR = 0xFFFF inside the read calls won't work.

2. Clear SPI_RDBR before reading and before duplex transfer.
   Otherwise the garbage data in RDBR will get read.  Since mmc_spi uses a
   lot of duplex transfers, this is the main cause of mmc_spi failure.

3. Poll RXS for transfer completion.  Polling SPIF or TXS cannot
   guarantee transfer completion.  This may interrupt a transfer before it
   is finished.  Also this may leave garbage data in buffer and affect
   next transfer.

[Yi Li <yi.li@analog.com>: add a field "u16 idle_tx_val" in "struct
bfin5xx_spi_chip" to specify the value to transmit if no TX value
is supplied.]
Signed-off-by: Wolfgang Muees <wolfgang.mues@auerswald.de>
Signed-off-by: Yi Li <yi.li@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:06 -07:00
Michael Hennerich
42c78b2bf5 Blackfin SPI Driver: Add GPIO controlled SPI Slave Select support
Add support for GPIO controlled SPI Chip Selects.  To make use of this
feature, set chip_select = 0 and add a proper cs_gpio to your
controller_data.

struct spi_board_info
        .chip_select = 0

struct bfin5xx_spi_chip
        .cs_gpio = GPIO_P###

There are various SPI devices that require SPI MODE_0, and need to have
the Chip Selects asserted during the entire transfer.  Consider using
SPI_MODE_3 (SPI_CPHA | SPI_CPOL) if your device allows it.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:06 -07:00
Michael Hennerich
7513e006c6 Blackfin SPI Driver: Fix erroneous SPI Clock divisor calculation
Fix erroneous SPI Clock divisor calculation.  Make sure SPI_BAUD is always
>= 2.  Writing a value of 0 or 1 to the SPI_BAUD register disables the
serial clock.

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-04-07 08:31:04 -07:00
Linus Torvalds
44d84afa83 Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (28 commits)
  powerpc: Fix oops when loading modules
  powerpc: Wire up preadv and pwritev
  powerpc/ftrace: Fix printf format warning
  powerpc/ftrace: Fix #if that should be #ifdef
  powerpc: Fix ptrace compat wrapper for FPU register access
  powerpc: Print information about mapping hw irqs to virtual irqs
  powerpc: Correct dependency of KEXEC
  powerpc: Disable VSX or current process in giveup_fpu/altivec
  powerpc/pseries: Enable relay in pseries_defconfig
  powerpc/pseries: Fix ibm,client-architecture comment
  powerpc/pseries: Scan for all events in rtasd
  powerpc/pseries: Add dispatch dispersion statistics
  powerpc: Clean up some prom printouts
  powerpc: Print progress of ibm,client-architecture method
  powerpc: Remove duplicated #include's
  powerpc/pmac: Fix internal modem IRQ on Wallstreet PowerBook
  powerpc/wdrtas: Update wdrtas_get_interval to use rtas_data_buf
  fsl-diu-fb: Pass the proper device for dma mapping routines
  powerpc/pq2fads: Update device tree for use with device-tree-aware u-boot.
  cpm_uart: Disable CPM udbg when re-initing CPM uart, even if not the console.
  ...
2009-04-07 07:40:55 -07:00
Huang Weiyi
5ab8026a30 tracing, x86: remove duplicated #include
Remove duplicated #include in arch/x86/kernel/ftrace.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
LKML-Reference: <1238503291-2532-1-git-send-email-weiyi.huang@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2009-04-07 14:01:53 +02:00
Wolfgang Grandegger
c724d67dff powerpc/85xx: i2c-mpc: use new I2C bindings for the Socates board
Preserve I2C clock settings for the Socrates MPC8544 board.

Signed-off-by: Wolfgang Grandegger <wg@grandegger.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07 10:23:33 +01:00
Daniel Silverstone
c564e6ae6c i2c-s3c2410: Simplify bus frequency calculation
The platform data for the i2c-s3c2410 driver used to allow a min,
max and desired frequency for the I2C bus. This patch reduces it
to simply a desired frequency ceiling and corrects all the uses
of the platform data appropriately.

This means, for example, that on a system with a 66MHz fclk, a
request for 100KHz will achieve 65KHz which is safe and
acceptable, rather than 378KHz which it would have achieved
without this change.

Signed-off-by: Simtec Linux Team <linux@simtec.co.uk>
Signed-off-by: Daniel Silverstone <dsilvers@simtec.co.uk>
[ben-linux@fluff.org: tidy subject and description]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07 10:18:33 +01:00
Ben Dooks
a192f7153b i2c-s3c2410: sda_delay should be in ns, not clock ticks
The sda_delay field should be specified in ns, not in clock ticks
as when using cpufreq we could be changing the bus rate.

Signed-off-by: Ben Dooks <ben@simtec.co.uk>
2009-04-07 10:18:33 +01:00
Darius Augulis
aa11e38ce6 i2c: iMX/MXC support
Implementation of I2C Adapter/Algorithm Driver for I2C Bus integrated
in Freescale's i.MX/MXC processors.

Signed-off-by: Darius Augulis <augulis.darius@gmail.com>
Tested-by: Sascha Hauer <s.hauer@pengutronix.de>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
2009-04-07 10:18:32 +01:00
Huang Weiyi
d226169428 ACPI: cpufreq: remove dupilcated #include
Remove dupilicated #include in arch/x86/kernel/cpu/cpufreq/longhaul.c.

Signed-off-by: Huang Weiyi <weiyi.huang@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2009-04-07 01:39:14 -04:00
Paul Mackerras
11b55da700 powerpc: Fix oops when loading modules
This fixes a problem reported by Sean MacLennan where loading any
module would cause an oops.  We weren't marking the pages containing
the module text as having hardware execute permission, due to a bug
introduced in commit 8d1cf34e ("powerpc/mm: Tweak PTE bit combination
definitions"), hence trying to execute the module text caused an
exception on processors that support hardware execute permission.

This adds _PAGE_HWEXEC to the definitions of PAGE_KERNEL_X and
PAGE_KERNEL_ROX to fix this problem.

Reported-by: Sean MacLennan <smaclennan@pikatech.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:19:01 +10:00
Stephen Rothwell
1a917bb549 powerpc: Wire up preadv and pwritev
[paulus@samba.org: changed to use syscall numbers 320 and 321 since
 perf_counters is currently using 319.]

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:19:00 +10:00
Michael Ellerman
7ddb7ad11f powerpc/ftrace: Fix printf format warning
'tramp' is an unsigned long, so print it with %lx.

Fixes the following build warning:
arch/powerpc/kernel/ftrace.c:291: error: format ‘%x’ expects type ‘unsigned int’, but argument 2 has type ‘long unsigned int’

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:19:00 +10:00
Michael Ellerman
f4952f6cbe powerpc/ftrace: Fix #if that should be #ifdef
Commit bb7253403f ("powerpc64,
ftrace: save toc only on modules for function graph"), added an
#if CONFIG_PPC64.  This changes it to #ifdef.

Fixes the following warning on 32-bit builds:
 arch/powerpc/kernel/ftrace.c:562:5: error: "CONFIG_PPC64" is not defined

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:19:00 +10:00
Michael Neuling
bc826666e4 powerpc: Fix ptrace compat wrapper for FPU register access
The ptrace compat wrapper mishandles access to the fpu registers.  The
PTRACE_PEEKUSR and PTRACE_POKEUSR requests miscalculate the index into
the fpr array due to the broken FPINDEX macro.  The
PPC_PTRACE_PEEKUSR_3264 request needs to use the same formula that the
native ptrace interface uses when operating on the register number (as
opposed to the 4-byte offset).  The PPC_PTRACE_POKEUSR_3264 request
didn't take TS_FPRWIDTH into account.

Signed-off-by: Andreas Schwab <schwab@linux-m68k.org>
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:19:00 +10:00
Michael Ellerman
c7d07fdd5a powerpc: Print information about mapping hw irqs to virtual irqs
The irq remapping layer seems to cause some confusion when people
see a different irq number in /proc/interrupts vs the one they
request in their driver or DTS.

So have the irq remapping layer print out a message when we map an
irq. The message is only printed the first time the irq is mapped,
and it's KERN_DEBUG so most people won't see it.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:19:00 +10:00
Geert Uytterhoeven
cb93d568e1 powerpc: Correct dependency of KEXEC
commit 28794d34ec ("powerpc/kconfig: Kill
PPC_MULTIPLATFORM") broke KEXEC, by making it dependent on BOOK3S, while it
should be PPC_BOOK3S.

Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:19:00 +10:00
Michael Neuling
7e875e9dc8 powerpc: Disable VSX or current process in giveup_fpu/altivec
When we call giveup_fpu, we need to need to turn off VSX for the
current process.  If we don't, on return to userspace it may execute a
VSX instruction before the next FP instruction, and not have its
register state refreshed correctly from the thread_struct.  Ditto for
altivec.

This caused a bug where an unaligned lfs or stfs results in
fix_alignment calling giveup_fpu so it can use the FPRs (in order to
do a single <-> double conversion), and then returning to userspace
with FP off but VSX on.  Then if a VSX instruction is executed, before
another FP instruction, it will proceed without another exception and
hence have the incorrect register state for VSX registers 0-31.

   lfs unaligned   <- alignment exception turns FP off but leaves VSX on

   VSX instruction <- no exception since VSX on, hence we get the
                      wrong VSX register values for VSX registers 0-31,
                      which overlap the FPRs.

Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:59 +10:00
Anton Blanchard
4c6cf42843 powerpc/pseries: Enable relay in pseries_defconfig
Enable relay in pseries config, ppc64_defconfig had it enabled but pseries
did not.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:59 +10:00
Anton Blanchard
856cc2f0be powerpc/pseries: Fix ibm,client-architecture comment
We specify a 64MB RMO, but the comment says 128MB.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:59 +10:00
Anton Blanchard
4a9f9506e7 powerpc/pseries: Scan for all events in rtasd
Instead of checking for known events, pass in all 1s so we handle future
event types.  We were currently missing the IO event type.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:59 +10:00
Anton Blanchard
0559f0a761 powerpc/pseries: Add dispatch dispersion statistics
PHYP tells us how often a shared processor dispatch changed physical cpus.
This can highlight performance problems caused by the hypervisor.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:59 +10:00
Anton Blanchard
1f8737aab3 powerpc: Clean up some prom printouts
Make all messages consistent, some have spaces before the "...", some do not.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:59 +10:00
Anton Blanchard
4da727ae2a powerpc: Print progress of ibm,client-architecture method
The ibm,client-architecture method will often cause a reconfiguration reboot.
When this happens the last thing we see is:

	Hypertas detected, assuming LPAR !

Which doesn't explain what just happened.  Wrap the ibm,client-architecture
so it's clear what is going on:

	Calling ibm,client-architecture... done

In order to maintain the law of conservation of screen real estate, downgrade
two other messages to debug.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2009-04-07 15:18:58 +10:00