Commit Graph

1749 Commits

Author SHA1 Message Date
Linus Torvalds
706eacadd5 Devicetree updates for v6.1:
DT core:
 
 - Fix node refcounting in of_find_last_cache_level()
 
 - Constify device_node in of_device_compatible_match()
 
 - Fix 'dma-ranges' handling in bus controller nodes
 
 - Fix handling of initrd start > end
 
 - Improve error reporting in of_irq_init()
 
 - Taint kernel on DT unittest running
 
 - Use strscpy instead of strlcpy
 
 - Add a build target, dt_compatible_check, to check for
   compatible strings used in kernel sources against compatible strings
   in DT schemas.
 
 - Handle DT_SCHEMA_FILES changes when rebuilding
 
 DT bindings:
 
 - LED bindings for MT6370 PMIC
 
 - Convert Mediatek mtk-gce mailbox, MIPS CPU interrupt controller,
   mt7621 I2C, virtio,pci-iommu, nxp,tda998x, QCom fastrpc, qcom,pdc,
   and arm,versatile-sysreg to DT schema format
 
 - Add nvmem cells to u-boot,env schema
 
 - Add more LED_COLOR_ID definitions
 
 - Require 'opp-table' uses to be a node
 
 - Various schema fixes to match QEMU 'virt' DT usage
 
 - Tree wide dropping of redundant 'Device Tree Binding' in schema titles
 
 - More (unevaluated|additional)Properties fixes in schema child nodes
 
 - Drop various redundant minItems equal to maxItems
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Merge tag 'devicetree-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT core:

   - Fix node refcounting in of_find_last_cache_level()

   - Constify device_node in of_device_compatible_match()

   - Fix 'dma-ranges' handling in bus controller nodes

   - Fix handling of initrd start > end

   - Improve error reporting in of_irq_init()

   - Taint kernel on DT unittest running

   - Use strscpy instead of strlcpy

   - Add a build target, dt_compatible_check, to check for compatible
     strings used in kernel sources against compatible strings in DT
     schemas.

   - Handle DT_SCHEMA_FILES changes when rebuilding

  DT bindings:

   - LED bindings for MT6370 PMIC

   - Convert Mediatek mtk-gce mailbox, MIPS CPU interrupt controller,
     mt7621 I2C, virtio,pci-iommu, nxp,tda998x, QCom fastrpc, qcom,pdc,
     and arm,versatile-sysreg to DT schema format

   - Add nvmem cells to u-boot,env schema

   - Add more LED_COLOR_ID definitions

   - Require 'opp-table' uses to be a node

   - Various schema fixes to match QEMU 'virt' DT usage

   - Tree wide dropping of redundant 'Device Tree Binding' in schema
     titles

   - More (unevaluated|additional)Properties fixes in schema child nodes

   - Drop various redundant minItems equal to maxItems"

* tag 'devicetree-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (62 commits)
  of: base: Shift refcount decrement in of_find_last_cache_level()
  dt-bindings: leds: Add MediaTek MT6370 flashlight
  dt-bindings: leds: mt6370: Add MediaTek MT6370 current sink type LED indicator
  dt-bindings: mailbox: Convert mtk-gce to DT schema
  of: base: make of_device_compatible_match() accept const device node
  of: Fix "dma-ranges" handling for bus controllers
  of: fdt: Remove unused struct fdt_scan_status
  dt-bindings: display: st,stm32-dsi: Handle data-lanes in DSI port node
  dt-bindings: timer: Add power-domains for TI timer-dm on K3
  dt: Add a check for undocumented compatible strings in kernel
  kbuild: take into account DT_SCHEMA_FILES changes while checking dtbs
  dt-bindings: interrupt-controller: migrate MIPS CPU interrupt controller text bindings to YAML
  dt-bindings: i2c: migrate mt7621 text bindings to YAML
  dt-bindings: power: gpcv2: correct patternProperties
  dt-bindings: virtio: Convert virtio,pci-iommu to DT schema
  dt-bindings: timer: arm,arch_timer: Allow dual compatible string
  dt-bindings: arm: cpus: Add kryo240 compatible
  dt-bindings: display: bridge: nxp,tda998x: Convert to json-schema
  dt-bindings: nvmem: u-boot,env: add basic NVMEM cells
  dt-bindings: remoteproc: qcom,adsp: enforce smd-edge schema
  ...
2022-10-10 13:13:51 -07:00
Linus Torvalds
b86406d42a * 'remove' callback converted to return void. Big change with trivial
fixes all over the tree. Other subsystems depending on this change
   have been asked to pull an immutable topic branch for this.
 * new driver for Microchip PCI1xxxx switch
 * heavy refactoring of the Mellanox BlueField driver
 * we prefer async probe in the i801 driver now
 * the rest is usual driver updates (support for more SoCs, some
   refactoring, some feature additions)
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Merge tag 'i2c-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c updates from Wolfram Sang:

 - 'remove' callback converted to return void. Big change with trivial
   fixes all over the tree. Other subsystems depending on this change
   have been asked to pull an immutable topic branch for this.

 - new driver for Microchip PCI1xxxx switch

 - heavy refactoring of the Mellanox BlueField driver

 - we prefer async probe in the i801 driver now

 - the rest is usual driver updates (support for more SoCs, some
   refactoring, some feature additions)

* tag 'i2c-for-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (37 commits)
  i2c: pci1xxxx: prevent signed integer overflow
  i2c: acpi: Replace zero-length array with DECLARE_FLEX_ARRAY() helper
  i2c: i801: Prefer async probe
  i2c: designware-pci: Use standard pattern for memory allocation
  i2c: designware-pci: Group AMD NAVI quirk parts together
  i2c: microchip: pci1xxxx: Add driver for I2C host controller in multifunction endpoint of pci1xxxx switch
  docs: i2c: slave-interface: return errno when handle I2C_SLAVE_WRITE_REQUESTED
  i2c: mlxbf: remove device tree support
  i2c: mlxbf: support BlueField-3 SoC
  i2c: cadence: Add standard bus recovery support
  i2c: mlxbf: add multi slave functionality
  i2c: mlxbf: support lock mechanism
  macintosh/ams: Adapt declaration of ams_i2c_remove() to earlier change
  i2c: riic: Use devm_platform_ioremap_resource()
  i2c: mlxbf: remove IRQF_ONESHOT
  dt-bindings: i2c: rockchip: add rockchip,rk3128-i2c
  dt-bindings: i2c: renesas,rcar-i2c: Add r8a779g0 support
  i2c: tegra: Add GPCDMA support
  i2c: scmi: Convert to be a platform driver
  i2c: rk3x: Add rv1126 support
  ...
2022-10-04 18:54:33 -07:00
Pierre Gondois
7a7f585754 of: base: Shift refcount decrement in of_find_last_cache_level()
Currently, of_find_next_cache_node() and of_property_read_u32()
are called on objects after their refcount have been decremented.
Re-order the calls to decrement the refcount after the function
calls.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Link: https://lore.kernel.org/r/20220930144936.2882481-1-pierre.gondois@arm.com
Signed-off-by: Rob Herring <robh@kernel.org>
2022-10-03 11:21:37 -05:00
Dmitry Torokhov
88269151be of: base: make of_device_compatible_match() accept const device node
of_device_is_compatible() accepts const device node pointer, there is
no reason why of_device_compatible_match() can't do the same.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Link: https://lore.kernel.org/r/YzY5MaU5N4A2st5R@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
2022-09-30 16:23:48 -05:00
Robin Murphy
f1ad5338a4 of: Fix "dma-ranges" handling for bus controllers
Commit 951d48855d ("of: Make of_dma_get_range() work on bus nodes")
relaxed the handling of "dma-ranges" for any leaf node on the assumption
that it would still represent a usage error for the property to be
present on a non-bus leaf node. However there turns out to be a fiddly
case where a bus also represents a DMA-capable device in its own right,
such as a PCIe root complex with an integrated DMA engine on its
platform side. In such cases, "dma-ranges" translation is entirely valid
for devices discovered behind the bus, but should not be erroneously
applied to the bus controller device itself which operates in its
parent's address space. Fix this by restoring the previous behaviour for
the specific case where a device is configured via its own OF node,
since it is logical to assume that a device should never represent its
own parent bus.

Reported-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/112e8f3d3e7c054ecf5e12b5ac0aa5596ec00681.1664455433.git.robin.murphy@arm.com
Signed-off-by: Rob Herring <robh@kernel.org>
2022-09-30 14:35:43 -05:00
Yuan Can
1700560954 of: fdt: Remove unused struct fdt_scan_status
After commit bba04d965d06("of/fdt: remove unused of_scan_flat_dt_by_path"), no
one use struct fdt_scan_status, so remove it.

Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20220927133739.98493-1-yuancan@huawei.com
Signed-off-by: Rob Herring <robh@kernel.org>
2022-09-29 17:29:19 -05:00
Wolfram Sang
85f17d677f Merge branch 'master' into i2c/for-mergewindow 2022-09-27 21:33:37 +02:00
Jakub Kicinski
0140a7168f Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
drivers/net/ethernet/freescale/fec.h
  7b15515fc1 ("Revert "fec: Restart PPS after link state change"")
  40c79ce13b ("net: fec: add stop mode support for imx8 platform")
https://lore.kernel.org/all/20220921105337.62b41047@canb.auug.org.au/

drivers/pinctrl/pinctrl-ocelot.c
  c297561bc9 ("pinctrl: ocelot: Fix interrupt controller")
  181f604b33 ("pinctrl: ocelot: add ability to be used in a non-mmio configuration")
https://lore.kernel.org/all/20220921110032.7cd28114@canb.auug.org.au/

tools/testing/selftests/drivers/net/bonding/Makefile
  bbb774d921 ("net: Add tests for bonding and team address list management")
  152e8ec776 ("selftests/bonding: add a test for bonding lladdr target")
https://lore.kernel.org/all/20220921110437.5b7dbd82@canb.auug.org.au/

drivers/net/can/usb/gs_usb.c
  5440428b3d ("can: gs_usb: gs_can_open(): fix race dev->can.state condition")
  45dfa45f52 ("can: gs_usb: add RX and TX hardware timestamp support")
https://lore.kernel.org/all/84f45a7d-92b6-4dc5-d7a1-072152fab6ff@tessares.net/

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-09-22 13:02:10 -07:00
Marek Bykowski
d5e3050c0f of/fdt: Don't calculate initrd size from DT if start > end
If the properties 'linux,initrd-start' and 'linux,initrd-end' of
the chosen node populated from the bootloader, eg. U-Boot, are so that
start > end, then the phys_initrd_size calculated from end - start is
negative that subsequently gets converted to a high positive value for
being unsigned long long. Then, the memory region with the (invalid)
size is added to the bootmem and attempted being paged in paging_init()
that results in the kernel fault.

For example, on the FVP ARM64 system I'm running, the U-Boot populates
the 'linux,initrd-start' with 8800_0000 and 'linux,initrd-end' with 0.
The phys_initrd_size calculated is then ffff_ffff_7800_0000
(= 0 - 8800_0000 = -8800_0000 + ULLONG_MAX + 1). paging_init() then
attempts to map the address 8800_0000 + ffff_ffff_7800_0000 and oops'es
as below.

It should be stressed, it is generally a fault of the bootloader's with
the kernel relying on it, however we should not allow the bootloader's
misconfiguration to lead to the kernel oops. Not only the kernel should be
bullet proof against it but also finding the root cause of the paging
fault spanning over the bootloader, DT, and kernel may happen is not so
easy.

  Unable to handle kernel paging request at virtual address fffffffefe43c000
  Mem abort info:
    ESR = 0x96000007
    EC = 0x25: DABT (current EL), IL = 32 bits
    SET = 0, FnV = 0
    EA = 0, S1PTW = 0
  Data abort info:
    ISV = 0, ISS = 0x00000007
    CM = 0, WnR = 0
  swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000080e3d000
  [fffffffefe43c000] pgd=0000000080de9003, pud=0000000080de9003
  Unable to handle kernel paging request at virtual address ffffff8000de9f90
  Mem abort info:
    ESR = 0x96000005
    EC = 0x25: DABT (current EL), IL = 32 bits
    SET = 0, FnV = 0
    EA = 0, S1PTW = 0
  Data abort info:
    ISV = 0, ISS = 0x00000005
    CM = 0, WnR = 0
  swapper pgtable: 4k pages, 39-bit VAs, pgdp=0000000080e3d000
  [ffffff8000de9f90] pgd=0000000000000000, pud=0000000000000000
  Internal error: Oops: 96000005 [#1] PREEMPT SMP
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.51-yocto-standard #1
  Hardware name: FVP Base (DT)
  pstate: 60000085 (nZCv daIf -PAN -UAO)
  pc : show_pte+0x12c/0x1b4
  lr : show_pte+0x100/0x1b4
  sp : ffffffc010ce3b30
  x29: ffffffc010ce3b30 x28: ffffffc010ceed80
  x27: fffffffefe43c000 x26: fffffffefe43a028
  x25: 0000000080bf0000 x24: 0000000000000025
  x23: ffffffc010b8d000 x22: ffffffc010e3d000
  x23: ffffffc010b8d000 x22: ffffffc010e3d000
  x21: 0000000080de9000 x20: ffffff7f80000f90
  x19: fffffffefe43c000 x18: 0000000000000030
  x17: 0000000000001400 x16: 0000000000001c00
  x15: ffffffc010cef1b8 x14: ffffffffffffffff
  x13: ffffffc010df1f40 x12: ffffffc010df1b70
  x11: ffffffc010ce3b30 x10: ffffffc010ce3b30
  x9 : 00000000ffffffc8 x8 : 0000000000000000
  x7 : 000000000000000f x6 : ffffffc010df16e8
  x5 : 0000000000000000 x4 : 0000000000000000
  x3 : 00000000ffffffff x2 : 0000000000000000
  x1 : 0000008080000000 x0 : ffffffc010af1d68
  Call trace:
   show_pte+0x12c/0x1b4
   die_kernel_fault+0x54/0x78
   __do_kernel_fault+0x11c/0x128
   do_translation_fault+0x58/0xac
   do_mem_abort+0x50/0xb0
   el1_da+0x1c/0x90
   __create_pgd_mapping+0x348/0x598
   paging_init+0x3f0/0x70d0
   setup_arch+0x2c0/0x5d4
   start_kernel+0x94/0x49c
  Code: 92748eb5 900052a0 9135a000 cb010294 (f8756a96) 

Signed-off-by: Marek Bykowski <marek.bykowski@gmail.com>
Link: https://lore.kernel.org/r/20220909023358.76881-1-marek.bykowski@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
2022-09-09 08:11:46 -05:00
Alexander Sverdlin
27244cbda8 of: irq: Report individual failures in of_irq_init()
New pr_err(), a copy of preceeding pr_debug(), faciliates debugging.

This change was inspired by a long lasting debugging of the
octeon_irq_init_ciu() which fails completely silently and leaves the
interrupt controller half-way configured which in turn had very non-obvious
effects.

Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Link: https://lore.kernel.org/r/20220907121629.54330-1-alexander.sverdlin@nokia.com
Signed-off-by: Rob Herring <robh@kernel.org>
2022-09-07 10:54:55 -05:00
Frank Rowand
59f9072f6e of: unittest: taint the kernel when of unittest runs
Make OF unittest trigger the new TAINT_TEST taint when OF unittest runs.
Due to OF unittest not being intended to run on production systems, and
potentially causing problems (or security issues like leaking kernel
addresses), the kernel's state should not be considered safe for
production use after OF unittest runs.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Link: https://lore.kernel.org/r/20220823200152.3465751-1-frowand.list@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
2022-08-25 13:59:08 -05:00
Vladimir Oltean
df55e31780 of: base: export of_device_compatible_match() for use in modules
Modules such as net/dsa/dsa_core.ko might want to iterate through an
array of compatible strings for things such as validation (or rather,
skipping it for some potentially broken drivers).

of_device_is_compatible() is exported, by of_device_compatible_match()
isn't. Export the latter as well, so we don't have to open-code the
iteration.

Cc: Frank Rowand <frowand.list@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-08-22 17:45:47 -07:00
Wolfram Sang
7a12dd077e of: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this
subsystem. Conversion is 1:1 because the return value is not used.
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220818210054.7157-1-wsa+renesas@sang-engineering.com
2022-08-22 15:01:26 -05:00
Sergey Shtylyov
2f945a792f of: fdt: fix off-by-one error in unflatten_dt_nodes()
Commit 78c44d910d ("drivers/of: Fix depth when unflattening devicetree")
forgot to fix up the depth check in the loop body in unflatten_dt_nodes()
which makes it possible to overflow the nps[] buffer...

Found by Linux Verification Center (linuxtesting.org) with the SVACE static
analysis tool.

Fixes: 78c44d910d ("drivers/of: Fix depth when unflattening devicetree")
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/7c354554-006f-6b31-c195-cdfe4caee392@omp.ru
2022-08-16 11:29:57 -06:00
Uwe Kleine-König
ed5c2f5fd1 i2c: Make remove callback return void
The value returned by an i2c driver's remove function is mostly ignored.
(Only an error message is printed if the value is non-zero that the
error is ignored.)

So change the prototype of the remove function to return no value. This
way driver authors are not tempted to assume that passing an error to
the upper layer is a good idea. All drivers are adapted accordingly.
There is no intended change of behaviour, all callbacks were prepared to
return 0 before.

Reviewed-by: Peter Senna Tschudin <peter.senna@gmail.com>
Reviewed-by: Jeremy Kerr <jk@codeconstruct.com.au>
Reviewed-by: Benjamin Mugnier <benjamin.mugnier@foss.st.com>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Crt Mori <cmo@melexis.com>
Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Behún <kabel@kernel.org> # for leds-turris-omnia
Acked-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Petr Machata <petrm@nvidia.com> # for mlxsw
Reviewed-by: Maximilian Luz <luzmaximilian@gmail.com> # for surface3_power
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> # for bmc150-accel-i2c + kxcjk-1013
Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> # for media/* + staging/media/*
Acked-by: Miguel Ojeda <ojeda@kernel.org> # for auxdisplay/ht16k33 + auxdisplay/lcd2s
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> # for versaclock5
Reviewed-by: Ajay Gupta <ajayg@nvidia.com> # for ucsi_ccg
Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> # for iio
Acked-by: Peter Rosin <peda@axentia.se> # for i2c-mux-*, max9860
Acked-by: Adrien Grassein <adrien.grassein@gmail.com> # for lontium-lt8912b
Reviewed-by: Jean Delvare <jdelvare@suse.de> # for hwmon, i2c-core and i2c/muxes
Acked-by: Corey Minyard <cminyard@mvista.com> # for IPMI
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Sebastian Reichel <sebastian.reichel@collabora.com> # for drivers/power
Acked-by: Krzysztof Hałasa <khalasa@piap.pl>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
2022-08-16 12:46:26 +02:00
Linus Torvalds
69dac8e431 RISC-V Patches for the 5.20 Merge Window, Part 2
There's still a handful of new features in here, but there are a lot of
 fixes/cleanups as well:
 
 * Support for the Zicbom for explicit cache-block management, along with
   the necessary bits to make the non-standard cache management ops on
   the Allwinner D1 function.
 * Support for the Zihintpause extension, which codifies a go-slow
   instruction used for cpu_relax().
 * Support for the Sstc extension for supervisor-mode timer/counter
   management.
 * Many device tree fixes and cleanups, including a large set for the
   Canaan device trees.
 * A handful of fixes and cleanups for the PMU driver.
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Merge tag 'riscv-for-linus-5.20-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:
 "There's still a handful of new features in here, but there are a lot
  of fixes/cleanups as well:

   - Support for the Zicbom extension for explicit cache-block
     management, along with the necessary bits to make the non-standard
     cache management ops on the Allwinner D1 function

   - Support for the Zihintpause extension, which codifies a go-slow
     instruction used for cpu_relax()

   - Support for the Sstc extension for supervisor-mode timer/counter
     management

   - Many device tree fixes and cleanups, including a large set for the
     Canaan device trees

   - A handful of fixes and cleanups for the PMU driver"

* tag 'riscv-for-linus-5.20-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (43 commits)
  dt-bindings: gpio: sifive: add gpio-line-names
  wireguard: selftests: set CONFIG_NONPORTABLE on riscv32
  RISC-V: KVM: Support sstc extension
  RISC-V: Improve SBI definitions
  RISC-V: Move counter info definition to sbi header file
  RISC-V: Fix SBI PMU calls for RV32
  RISC-V: Update user page mapping only once during start
  RISC-V: Fix counter restart during overflow for RV32
  RISC-V: Prefer sstc extension if available
  RISC-V: Enable sstc extension parsing from DT
  RISC-V: Add SSTC extension CSR details
  riscv:uprobe fix SR_SPIE set/clear handling
  dt-bindings: riscv: fix SiFive l2-cache's cache-sets
  riscv: ensure cpu_ops_sbi is declared
  RISC-V: cpu_ops_spinwait.c should include head.h
  RISC-V: Declare cpu_ops_spinwait in <asm/cpu_ops.h>
  riscv: dts: starfive: correct number of external interrupts
  riscv: dts: sifive unmatched: Add PWM controlled LEDs
  riscv/purgatory: Omit use of bin2c
  riscv/purgatory: hard-code obj-y in Makefile
  ...
2022-08-12 18:39:43 -07:00
Palmer Dabbelt
3aefb2ee5b
riscv: implement Zicbom-based CMO instructions + the t-head variant
This series is based on the alternatives changes done in my svpbmt
series and thus also depends on Atish's isa-extension parsing series.

It implements using the cache-management instructions from the  Zicbom-
extension to handle cache flush, etc actions on platforms needing them.

SoCs using cpu cores from T-Head like the Allwinne D1 implement a
different set of cache instructions. But while they are different,
instructions they provide the same functionality, so a variant can easly
hook into the existing alternatives mechanism on those.

[Palmer:  Some minor fixups, including a RISCV_ISA_ZICBOM dependency on
MMU that's probably not strictly necessary.  The Zicbom support will
trip up sparse for users that have new toolchains, I just sent a patch.]

Link: https://lore.kernel.org/all/20220706231536.2041855-1-heiko@sntech.de/
Link: https://lore.kernel.org/linux-sparse/20220811033138.20676-1-palmer@rivosinc.com/T/#u

* palmer/riscv-zicbom:
  riscv: implement cache-management errata for T-Head SoCs
  riscv: Add support for non-coherent devices using zicbom extension
  dt-bindings: riscv: document cbom-block-size
  of: also handle dma-noncoherent in of_dma_is_coherent()
2022-08-10 20:49:32 -07:00
Linus Torvalds
607ca0f742 TTY / Serial driver changes for 6.0-rc1
Here is the big set of tty and serial driver changes for 6.0-rc1.
 
 It was delayed from last week as I wanted to make sure the last commit
 here got some good testing in linux-next and elsewhere as it seemed to
 show up only late in testing for some reason.
 
 Nothing major here, just lots of cleanups from Jiri and Ilpo to make the
 tty core cleaner (Jiri) and the rs485 code simpler to use (Ilpo).  Also
 included in here is the obligatory n_gsm updates from Daniel Starke and
 lots of tiny driver updates and minor fixes and tweaks for other smaller
 serial drivers.
 
 Full details are in the shortlog.
 
 All of these have been in linux-next for a while with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty / serial driver updates from Greg KH:
 "Here is the big set of tty and serial driver changes for 6.0-rc1.

  It was delayed from last week as I wanted to make sure the last commit
  here got some good testing in linux-next and elsewhere as it seemed to
  show up only late in testing for some reason.

  Nothing major here, just lots of cleanups from Jiri and Ilpo to make
  the tty core cleaner (Jiri) and the rs485 code simpler to use (Ilpo).

  Also included in here is the obligatory n_gsm updates from Daniel
  Starke and lots of tiny driver updates and minor fixes and tweaks for
  other smaller serial drivers.

  All of these have been in linux-next for a while with no reported
  problems"

* tag 'tty-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (186 commits)
  tty: serial: qcom-geni-serial: Fix %lu -> %u in print statements
  tty: amiserial: Fix comment typo
  tty: serial: document uart_get_console()
  tty: serial: serial_core, reformat kernel-doc for functions
  Documentation: serial: link uart_ops properly
  Documentation: serial: move GPIO kernel-doc to the functions
  Documentation: serial: dedup kernel-doc for uart functions
  Documentation: serial: move uart_ops documentation to the struct
  dt-bindings: serial: snps-dw-apb-uart: Document Rockchip RV1126
  serial: mvebu-uart: uart2 error bits clearing
  tty: serial: fsl_lpuart: correct the count of break characters
  serial: stm32: make info structs static to avoid sparse warnings
  serial: fsl_lpuart: zero out parity bit in CS7 mode
  tty: serial: qcom-geni-serial: Fix get_clk_div_rate() which otherwise could return a sub-optimal clock rate.
  serial: 8250_bcm2835aux: Add missing clk_disable_unprepare()
  tty: vt: initialize unicode screen buffer
  serial: remove VR41XX serial driver
  serial: 8250: lpc18xx: Remove redundant sanity check for RS485 flags
  serial: 8250_dwlib: remove redundant sanity check for RS485 flags
  dt_bindings: rs485: Correct delay values
  ...
2022-08-08 11:31:40 -07:00
Linus Torvalds
6614a3c316 - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
Lin, Yang Shi, Anshuman Khandual and Mike Rapoport
 
 - Some kmemleak fixes from Patrick Wang and Waiman Long
 
 - DAMON updates from SeongJae Park
 
 - memcg debug/visibility work from Roman Gushchin
 
 - vmalloc speedup from Uladzislau Rezki
 
 - more folio conversion work from Matthew Wilcox
 
 - enhancements for coherent device memory mapping from Alex Sierra
 
 - addition of shared pages tracking and CoW support for fsdax, from
   Shiyang Ruan
 
 - hugetlb optimizations from Mike Kravetz
 
 - Mel Gorman has contributed some pagealloc changes to improve latency
   and realtime behaviour.
 
 - mprotect soft-dirty checking has been improved by Peter Xu
 
 - Many other singleton patches all over the place
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Merge tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:
 "Most of the MM queue. A few things are still pending.

  Liam's maple tree rework didn't make it. This has resulted in a few
  other minor patch series being held over for next time.

  Multi-gen LRU still isn't merged as we were waiting for mapletree to
  stabilize. The current plan is to merge MGLRU into -mm soon and to
  later reintroduce mapletree, with a view to hopefully getting both
  into 6.1-rc1.

  Summary:

   - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe
     Lin, Yang Shi, Anshuman Khandual and Mike Rapoport

   - Some kmemleak fixes from Patrick Wang and Waiman Long

   - DAMON updates from SeongJae Park

   - memcg debug/visibility work from Roman Gushchin

   - vmalloc speedup from Uladzislau Rezki

   - more folio conversion work from Matthew Wilcox

   - enhancements for coherent device memory mapping from Alex Sierra

   - addition of shared pages tracking and CoW support for fsdax, from
     Shiyang Ruan

   - hugetlb optimizations from Mike Kravetz

   - Mel Gorman has contributed some pagealloc changes to improve
     latency and realtime behaviour.

   - mprotect soft-dirty checking has been improved by Peter Xu

   - Many other singleton patches all over the place"

 [ XFS merge from hell as per Darrick Wong in

   https://lore.kernel.org/all/YshKnxb4VwXycPO8@magnolia/ ]

* tag 'mm-stable-2022-08-03' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (282 commits)
  tools/testing/selftests/vm/hmm-tests.c: fix build
  mm: Kconfig: fix typo
  mm: memory-failure: convert to pr_fmt()
  mm: use is_zone_movable_page() helper
  hugetlbfs: fix inaccurate comment in hugetlbfs_statfs()
  hugetlbfs: cleanup some comments in inode.c
  hugetlbfs: remove unneeded header file
  hugetlbfs: remove unneeded hugetlbfs_ops forward declaration
  hugetlbfs: use helper macro SZ_1{K,M}
  mm: cleanup is_highmem()
  mm/hmm: add a test for cross device private faults
  selftests: add soft-dirty into run_vmtests.sh
  selftests: soft-dirty: add test for mprotect
  mm/mprotect: fix soft-dirty check in can_change_pte_writable()
  mm: memcontrol: fix potential oom_lock recursion deadlock
  mm/gup.c: fix formatting in check_and_migrate_movable_page()
  xfs: fail dax mount if reflink is enabled on a partition
  mm/memcontrol.c: remove the redundant updating of stats_flush_threshold
  userfaultfd: don't fail on unrecognized features
  hugetlb_cgroup: fix wrong hugetlb cgroup numa stat
  ...
2022-08-05 16:32:45 -07:00
Linus Torvalds
da8d07af4b Devicetree updates for v6.0:
Bindings:
 - Add spi-peripheral-props.yaml references to various SPI device
   bindings
 
 - Convert qcom,pm8916-wdt, ds1307, Qualcomm BAM DMA, is31fl319x,
   skyworks,aat1290, Rockchip EMAC, gpio-ir-receiver, ahci-ceva, Arm CCN
   PMU, rda,8810pl-intc, sil,sii9022, ps2-gpio, and arm-firmware-suite
   bindings to DT schema format
 
 - New bindings for Arm virtual platforms display, Qualcomm IMEM memory
   region, Samsung S5PV210 ChipID, EM Microelectronic EM3027 RTC, and
   arm,cortex-a78ae
 
 - Add vendor prefixes for asrock, bytedance, hxt, ingrasys, inventec,
   quanta, and densitron
 
 - Add missing MSI and IOMMU properties to host-generic-pci
 
 - Remove bindings for removed EFM32 platform
 
 - Remove old chosen.txt binding (replaced by schema)
 
 - Treewide add missing type information for properties
 
 - Treewide fixing of typos and its vs. it's in bindings. Its all good
   now.
 
 - Drop unnecessary quoting in power related schemas
 
 - Several LED binding updates which didn't get picked up
 
 - Move various bindings to proper directories
 
 DT core code:
 - Convert unittest GPIO related tests to use fwnode
 
 - Check ima-kexec-buffer against memory bounds
 
 - Print reserved-memory allocation/reservation failures as errors
 
 - Cleanup early_init_dt_reserve_memory_arch()
 
 - Simplify of_overlay_fdt_apply() tail
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Merge tag 'devicetree-for-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "Bindings:

   - Add spi-peripheral-props.yaml references to various SPI device
     bindings

   - Convert qcom,pm8916-wdt, ds1307, Qualcomm BAM DMA, is31fl319x,
     skyworks,aat1290, Rockchip EMAC, gpio-ir-receiver, ahci-ceva, Arm
     CCN PMU, rda,8810pl-intc, sil,sii9022, ps2-gpio, and
     arm-firmware-suite bindings to DT schema format

   - New bindings for Arm virtual platforms display, Qualcomm IMEM
     memory region, Samsung S5PV210 ChipID, EM Microelectronic EM3027
     RTC, and arm,cortex-a78ae

   - Add vendor prefixes for asrock, bytedance, hxt, ingrasys, inventec,
     quanta, and densitron

   - Add missing MSI and IOMMU properties to host-generic-pci

   - Remove bindings for removed EFM32 platform

   - Remove old chosen.txt binding (replaced by schema)

   - Treewide add missing type information for properties

   - Treewide fixing of typos and its vs. it's in bindings. Its all good
     now.

   - Drop unnecessary quoting in power related schemas

   - Several LED binding updates which didn't get picked up

   - Move various bindings to proper directories

  DT core code:

   - Convert unittest GPIO related tests to use fwnode

   - Check ima-kexec-buffer against memory bounds

   - Print reserved-memory allocation/reservation failures as errors

   - Cleanup early_init_dt_reserve_memory_arch()

   - Simplify of_overlay_fdt_apply() tail"

* tag 'devicetree-for-6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (65 commits)
  dt-bindings: mtd: microchip,mchp48l640: use spi-peripheral-props.yaml
  dt-bindings: power: supply: drop quotes when not needed
  dt-bindings: power: reset: drop quotes when not needed
  dt-bindings: power: drop quotes when not needed
  dt-bindings: PCI: host-generic-pci: Allow IOMMU and MSI properties
  of/fdt: declared return type does not match actual return type
  devicetree/bindings: correct possessive "its" typos
  dt-bindings: net: convert emac_rockchip.txt to YAML
  dt-bindings: eeprom: microchip,93lc46b: move to eeprom directory
  dt-bindings: eeprom: at25: use spi-peripheral-props.yaml
  dt-bindings: display: use spi-peripheral-props.yaml
  dt-bindings: watchdog: qcom,pm8916-wdt: convert to dtschema
  dt-bindings: power: reset: qcom,pon: use absolute path to other schema
  dt-bindings: iio/dac: adi,ad5766: Add missing type to 'output-range-microvolts'
  dt-bindings: power: supply: charger-manager: Add missing type for 'cm-battery-stat'
  dt-bindings: panel: raydium,rm67191: Add missing type to 'video-mode'
  of/fdt: Clean up early_init_dt_reserve_memory_arch()
  dt-bindings: PCI: fsl,imx6q-pcie: Add missing type for 'reset-gpio-active-high'
  dt-bindings: rtc: Add EM Microelectronic EM3027 bindings
  dt-bindings: rtc: ds1307: Convert to json-schema
  ...
2022-08-04 18:08:34 -07:00
Linus Torvalds
cfeafd9466 Driver core / kernfs changes for 6.0-rc1
Here is the set of driver core and kernfs changes for 6.0-rc1.
 
 "biggest" thing in here is some scalability improvements for kernfs for
 large systems.  Other than that, included in here are:
 	- arch topology and cache info changes that have been reviewed
 	  and discussed a lot.
 	- potential error path cleanup fixes
 	- deferred driver probe cleanups
 	- firmware loader cleanups and tweaks
 	- documentation updates
 	- other small things
 
 All of these have been in the linux-next tree for a while with no
 reported problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core / kernfs updates from Greg KH:
 "Here is the set of driver core and kernfs changes for 6.0-rc1.

  The "biggest" thing in here is some scalability improvements for
  kernfs for large systems. Other than that, included in here are:

   - arch topology and cache info changes that have been reviewed and
     discussed a lot.

   - potential error path cleanup fixes

   - deferred driver probe cleanups

   - firmware loader cleanups and tweaks

   - documentation updates

   - other small things

  All of these have been in the linux-next tree for a while with no
  reported problems"

* tag 'driver-core-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (63 commits)
  docs: embargoed-hardware-issues: fix invalid AMD contact email
  firmware_loader: Replace kmap() with kmap_local_page()
  sysfs docs: ABI: Fix typo in comment
  kobject: fix Kconfig.debug "its" grammar
  kernfs: Fix typo 'the the' in comment
  docs: driver-api: firmware: add driver firmware guidelines. (v3)
  arch_topology: Fix cache attributes detection in the CPU hotplug path
  ACPI: PPTT: Leave the table mapped for the runtime usage
  cacheinfo: Use atomic allocation for percpu cache attributes
  drivers/base: fix userspace break from using bin_attributes for cpumap and cpulist
  MAINTAINERS: Change mentions of mpm to olivia
  docs: ABI: sysfs-devices-soc: Update Lee Jones' email address
  docs: ABI: sysfs-class-pwm: Update Lee Jones' email address
  Documentation/process: Add embargoed HW contact for LLVM
  Revert "kernfs: Change kernfs_notify_list to llist."
  ACPI: Remove the unused find_acpi_cpu_cache_topology()
  arch_topology: Warn that topology for nested clusters is not supported
  arch_topology: Add support for parsing sockets in /cpu-map
  arch_topology: Set cluster identifier in each core/thread from /cpu-map
  arch_topology: Limit span of cpu_clustergroup_mask()
  ...
2022-08-04 11:31:20 -07:00
Xu Qiang
7913145afa of/fdt: declared return type does not match actual return type
The commit 649cab56de (“of: properly check for error returned
by fdt_get_name()”) changed the return value type from bool to int,
but forgot to change the return value simultaneously.

populate_node was only called in unflatten_dt_nodes, and returns
with values greater than or equal to 0 were discarded without further
processing. Considering that return 0 usually indicates success,
return 0 instead of return true.

Fixes: 649cab56de (“of: properly check for error returned by fdt_get_name()”)
Signed-off-by: Xu Qiang <xuqiang36@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220801120506.11461-2-xuqiang36@huawei.com
2022-08-01 10:13:41 -06:00
Heiko Stuebner
12b827758f
of: also handle dma-noncoherent in of_dma_is_coherent()
of_dma_is_coherent() currently expects the architecture to be
non-coherent and some devices being coherent getting marked
as such with the dma-coherent devicetree property.

For PowerPC CONFIG_OF_DMA_DEFAULT_COHERENT was added which currently
makes of_dma_is_coherent() always return true but doesn't handle
the case of the architecture being coherent but some devices not.

So modify the function to also check for dma-noncoherent and
set a suitable default return value. If CONFIG_OF_DMA_DEFAULT_COHERENT
is set the value starts with true and finding dma-noncoherent will
set it to false and without CONFIG_OF_DMA_DEFAULT_COHERENT, the
behaviour is reversed.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://lore.kernel.org/r/20220706231536.2041855-2-heiko@sntech.de
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-07-28 15:30:20 -07:00
Peter Collingbourne
f8a855ed8d of/fdt: Clean up early_init_dt_reserve_memory_arch()
As of commit 18250b43f7 ("of: fdt: Remove
early_init_dt_reserve_memory_arch() override capability") this is
no longer an arch hook, so rename it to remove the confusing _arch
suffix. Also remove some unnecessary indirection from all but one of
the callers by calling memblock_reserve() directly instead.

Signed-off-by: Peter Collingbourne <pcc@google.com>
Link: https://linux-review.googlesource.com/id/I3362bdd92ae6e47e8f5bac01aa228d32f9d01aad
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220723015331.1607029-1-pcc@google.com
2022-07-25 13:58:03 -06:00
Geert Uytterhoeven
e76f4a6107 of: overlay: Simplify of_overlay_fdt_apply() tail
It does not hurt to fill in the changeset id while the mutex is still
held.  After doing so, the function tails for the success and failure
cases become identical, so they can be unified.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Tested-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/6a3357a8f7f29704350e3ffae768ee8a462b54d3.1657893306.git.geert+renesas@glider.be
2022-07-19 15:56:48 -06:00
Geert Uytterhoeven
e385b0ba6a of: overlay: Move devicetree_corrupt() check up
There is no point in doing several preparatory steps in
of_overlay_fdt_apply(), only to see of_overlay_apply() return early
because of a corrupt device tree.

Move the check for a corrupt device tree from of_overlay_apply() to
of_overlay_fdt_apply(), to check for this as early as possible.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Frank Rowand <frank.rowand@sony.com>
Tested-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/c91ce7112eb5167ea46a43d8a980e76b920010ba.1657893306.git.geert+renesas@glider.be
2022-07-19 15:56:48 -06:00
Liang He
d17e37c41b of: device: Fix missing of_node_put() in of_dma_set_restricted_buffer
We should use of_node_put() for the reference 'node' returned by
of_parse_phandle() which will increase the refcount.

Fixes: fec9b62509 ("of: Add plumbing for restricted DMA pool")
Co-authored-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Liang He <windhl@126.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220702014449.263772-1-windhl@126.com
2022-07-12 10:58:33 -06:00
Andy Shevchenko
9465a98458 of: unittest: make unittest_gpio_remove() consistent with unittest_gpio_probe()
On the ->remove() stage the callback uses physical device node instead of one
from GPIO chip and the variable name which is different to one used in
unittest_gpio_probe(). Make these consistent with unittest_gpio_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220708214539.7254-2-andriy.shevchenko@linux.intel.com
2022-07-11 17:08:23 -06:00
Andy Shevchenko
652081b3c6 of: unittest: Switch to use fwnode instead of of_node
The OF node in the GPIO library is deprecated and soon will be removed.
GPIO library now accepts fwnode as a firmware node, so switch the module
to use it instead.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bartosz Golaszewski <brgl@bgdev.pl>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220708214539.7254-1-andriy.shevchenko@linux.intel.com
2022-07-11 17:08:15 -06:00
Jonathan McDowell
b69a2afd5a x86/kexec: Carry forward IMA measurement log on kexec
On kexec file load, the Integrity Measurement Architecture (IMA)
subsystem may verify the IMA signature of the kernel and initramfs, and
measure it. The command line parameters passed to the kernel in the
kexec call may also be measured by IMA.

A remote attestation service can verify a TPM quote based on the TPM
event log, the IMA measurement list and the TPM PCR data. This can
be achieved only if the IMA measurement log is carried over from the
current kernel to the next kernel across the kexec call.

PowerPC and ARM64 both achieve this using device tree with a
"linux,ima-kexec-buffer" node. x86 platforms generally don't make use of
device tree, so use the setup_data mechanism to pass the IMA buffer to
the new kernel.

Signed-off-by: Jonathan McDowell <noodles@fb.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> # IMA function definitions
Link: https://lore.kernel.org/r/YmKyvlF3my1yWTvK@noodles-fedora-PC23Y6EG
2022-07-01 15:22:16 +02:00
Michael Walle
65e20e8cbb earlycon: prevent multiple register_console()
If the earlycon parameter is given twice, the kernel will spit out a
WARN() in register_console() because it was already registered. The
non-dt variant setup_earlycon() already handles that gracefully. The dt
variant of_setup_earlycon() doesn't. Add the check there and add the
-EALREADY handling in early_init_dt_scan_chosen_stdout().

FWIW, this doesn't happen if CONFIG_ACPI_SPCR_TABLE is set. In that case
the registration is delayed until after earlycon parameter(s) are
parsed.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220628120705.200617-1-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-30 17:10:11 +02:00
Vincent Whitchurch
6991cd744f of: reserved-memory: Print allocation/reservation failures as error
If the allocation/reservation of reserved-memory fails, it is normally
an error, so print it as an error so that it doesn't get hidden from the
console due to the loglevel.  Also make the allocation failure include
the size just like the reservation failure.

Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220628113540.2790835-1-vincent.whitchurch@axis.com
2022-06-28 14:15:36 -06:00
Deming Wang
3a5230a87c of: Drop duplicate 'the' in of_find_last_cache_level kerneldoc
Delete duplicate words of "the".

Signed-off-by: Deming Wang <wangdeming@inspur.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220624011247.1735-1-wangdeming@inspur.com
2022-06-28 07:34:15 -06:00
Saravana Kannan
a244ec3640 of: base: Avoid console probe delay when fw_devlink.strict=1
Commit 71066545b4 ("driver core: Set fw_devlink.strict=1 by default")
enabled iommus and dmas dependency enforcement by default. On some
systems, this caused the console device's probe to get delayed until the
deferred_probe_timeout expires.

We need consoles to work as soon as possible, so mark the console device
node with FWNODE_FLAG_BEST_EFFORT so that fw_delink knows not to delay
the probe of the console device for suppliers without drivers. The
driver can then make the decision on where it can probe without those
suppliers or defer its probe.

Fixes: 71066545b4 ("driver core: Set fw_devlink.strict=1 by default")
Reported-by: Sascha Hauer <sha@pengutronix.de>
Reported-by: Peng Fan <peng.fan@nxp.com>
Tested-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20220623080344.783549-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-06-27 16:52:25 +02:00
Patrick Wang
c200d90049 mm: kmemleak: remove kmemleak_not_leak_phys() and the min_count argument to kmemleak_alloc_phys()
Patch series "mm: kmemleak: store objects allocated with physical address
separately and check when scan", v4.

The kmemleak_*_phys() interface uses "min_low_pfn" and "max_low_pfn" to
check address.  But on some architectures, kmemleak_*_phys() is called
before those two variables initialized.  The following steps will be
taken:

1) Add OBJECT_PHYS flag and rbtree for the objects allocated
   with physical address
2) Store physical address in objects if allocated with OBJECT_PHYS
3) Check the boundary when scan instead of in kmemleak_*_phys()

This patch set will solve:
https://lore.kernel.org/r/20220527032504.30341-1-yee.lee@mediatek.com
https://lore.kernel.org/r/9dd08bb5-f39e-53d8-f88d-bec598a08c93@gmail.com

v3: https://lore.kernel.org/r/20220609124950.1694394-1-patrick.wang.shcn@gmail.com
v2: https://lore.kernel.org/r/20220603035415.1243913-1-patrick.wang.shcn@gmail.com
v1: https://lore.kernel.org/r/20220531150823.1004101-1-patrick.wang.shcn@gmail.com


This patch (of 4):

Remove the unused kmemleak_not_leak_phys() function.  And remove the
min_count argument to kmemleak_alloc_phys() function, assume it's 0.

Link: https://lkml.kernel.org/r/20220611035551.1823303-1-patrick.wang.shcn@gmail.com
Link: https://lkml.kernel.org/r/20220611035551.1823303-2-patrick.wang.shcn@gmail.com
Signed-off-by: Patrick Wang <patrick.wang.shcn@gmail.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Yee Lee <yee.lee@mediatek.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-06-16 19:48:30 -07:00
Vaibhav Jain
cbf9c4b961 of: check previous kernel's ima-kexec-buffer against memory bounds
Presently ima_get_kexec_buffer() doesn't check if the previous kernel's
ima-kexec-buffer lies outside the addressable memory range. This can result
in a kernel panic if the new kernel is booted with 'mem=X' arg and the
ima-kexec-buffer was allocated beyond that range by the previous kernel.
The panic is usually of the form below:

$ sudo kexec --initrd initrd vmlinux --append='mem=16G'

<snip>
 BUG: Unable to handle kernel data access on read at 0xc000c01fff7f0000
 Faulting instruction address: 0xc000000000837974
 Oops: Kernel access of bad area, sig: 11 [#1]
<snip>
 NIP [c000000000837974] ima_restore_measurement_list+0x94/0x6c0
 LR [c00000000083b55c] ima_load_kexec_buffer+0xac/0x160
 Call Trace:
 [c00000000371fa80] [c00000000083b55c] ima_load_kexec_buffer+0xac/0x160
 [c00000000371fb00] [c0000000020512c4] ima_init+0x80/0x108
 [c00000000371fb70] [c0000000020514dc] init_ima+0x4c/0x120
 [c00000000371fbf0] [c000000000012240] do_one_initcall+0x60/0x2c0
 [c00000000371fcc0] [c000000002004ad0] kernel_init_freeable+0x344/0x3ec
 [c00000000371fda0] [c0000000000128a4] kernel_init+0x34/0x1b0
 [c00000000371fe10] [c00000000000ce64] ret_from_kernel_thread+0x5c/0x64
 Instruction dump:
 f92100b8 f92100c0 90e10090 910100a0 4182050c 282a0017 3bc00000 40810330
 7c0802a6 fb610198 7c9b2378 f80101d0 <a1240000> 2c090001 40820614 e9240010
 ---[ end trace 0000000000000000 ]---

Fix this issue by checking returned PFN range of previous kernel's
ima-kexec-buffer with page_is_ram() to ensure correct memory bounds.

Fixes: 467d278249 ("powerpc: ima: get the kexec buffer passed by the previous kernel")
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Prakhar Srivastava <prsriva@linux.microsoft.com>
Cc: Lakshmi Ramasubramanian <nramas@linux.microsoft.com>
Cc: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Cc: Rob Herring <robh@kernel.org>
Cc: Ritesh Harjani <ritesh.list@gmail.com>
Cc: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220531041446.3334259-1-vaibhav@linux.ibm.com
2022-06-07 16:25:11 -06:00
Linus Torvalds
2518f226c6 drm for 5.19-rc1
dma-buf:
 - add dma_resv_replace_fences
 - add dma_resv_get_singleton
 - make dma_excl_fence private
 
 core:
 - EDID parser refactorings
 - switch drivers to drm_mode_copy/duplicate
 - DRM managed mutex initialization
 
 display-helper:
 - put HDMI, SCDC, HDCP, DSC and DP into new module
 
 gem:
 - rework fence handling
 
 ttm:
 - rework bulk move handling
 - add common debugfs for resource managers
 - convert to kvcalloc
 
 format helpers:
 - support monochrome formats
 - RGB888, RGB565 to XRGB8888 conversions
 
 fbdev:
 - cfb/sys_imageblit fixes
 - pagelist corruption fix
 - create offb platform device
 - deferred io improvements
 
 sysfb:
 - Kconfig rework
 - support for VESA mode selection
 
 bridge:
 - conversions to devm_drm_of_get_bridge
 - conversions to panel_bridge
 - analogix_dp - autosuspend support
 - it66121 - audio support
 - tc358767 - DSI to DPI support
 - icn6211 - PLL/I2C fixes, DT property
 - adv7611 - enable DRM_BRIDGE_OP_HPD
 - anx7625 - fill ELD if no monitor
 - dw_hdmi - add audio support
 - lontium LT9211 support, i.MXMP LDB
 - it6505: Kconfig fix, DPCD set power fix
 - adv7511 - CEC support for ADV7535
 
 panel:
 - ltk035c5444t, B133UAN01, NV3052C panel support
 - DataImage FG040346DSSWBG04 support
 - st7735r - DT bindings fix
 - ssd130x - fixes
 
 i915:
 - DG2 laptop PCI-IDs ("motherboard down")
 - Initial RPL-P PCI IDs
 - compute engine ABI
 - DG2 Tile4 support
 - DG2 CCS clear color compression support
 - DG2 render/media compression formats support
 - ATS-M platform info
 - RPL-S PCI IDs added
 - Bump ADL-P DMC version to v2.16
 - Support static DRRS
 - Support multiple eDP/LVDS native mode refresh rates
 - DP HDR support for HSW+
 - Lots of display refactoring + fixes
 - GuC hwconfig support and query
 - sysfs support for multi-tile
 - fdinfo per-client gpu utilisation
 - add geometry subslices query
 - fix prime mmap with LMEM
 - fix vm open count and remove vma refcounts
 - contiguous allocation fixes
 - steered register write support
 - small PCI BAR enablement
 - GuC error capture support
 - sunset igpu legacy mmap support for newer devices
 - GuC version 70.1.1 support
 
 amdgpu:
 - Initial SoC21 support
 - SMU 13.x enablement
 - SMU 13.0.4 support
 - ttm_eu cleanups
 - USB-C, GPUVM updates
 - TMZ fixes for RV
 - RAS support for VCN
 - PM sysfs code cleanup
 - DC FP rework
 - extend CG/PG flags to 64-bit
 - SI dpm lockdep fix
 - runtime PM fixes
 
 amdkfd:
 - RAS/SVM fixes
 - TLB flush fixes
 - CRIU GWS support
 - ignore bogus MEC signals more efficiently
 
 msm:
 - Fourcc modifier for tiled but not compressed layouts
 - Support for userspace allocated IOVA (GPU virtual address)
 - DPU: DSC (Display Stream Compression) support
 - DP: eDP support
 - DP: conversion to use drm_bridge and drm_bridge_connector
 - Merge DPU1 and MDP5 MDSS driver
 - DPU: writeback support
 
 nouveau:
 - make some structures static
 - make some variables static
 - switch to drm_gem_plane_helper_prepare_fb
 
 radeon:
 - misc fixes/cleanups
 
 mxsfb:
 - rework crtc mode setting
 - LCDIF CRC support
 
 etnaviv:
 - fencing improvements
 - fix address space collisions
 - cleanup MMU reference handling
 
 gma500:
 - GEM/GTT improvements
 - connector handling fixes
 
 komeda:
 - switch to plane reset helper
 
 mediatek:
 - MIPI DSI improvements
 
 omapdrm:
 - GEM improvements
 
 qxl:
 - aarch64 support
 
 vc4:
 - add a CL submission tracepoint
 - HDMI YUV support
 - HDMI/clock improvements
 - drop is_hdmi caching
 
 virtio:
 - remove restriction of non-zero blob types
 
 vmwgfx:
 - support for cursormob and cursorbypass 4
 - fence improvements
 
 tidss:
 - reset DISPC on startup
 
 solomon:
 - SPI support
 - DT improvements
 
 sun4i:
 - allwinner D1 support
 - drop is_hdmi caching
 
 imx:
 - use swap() instead of open-coding
 - use devm_platform_ioremap_resource
 - remove redunant initializations
 
 ast:
 - Displayport support
 
 rockchip:
 - Refactor IOMMU initialisation
 - make some structures static
 - replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi
 - support swapped YUV formats,
 - clock improvements
 - rk3568 support
 - VOP2 support
 
 mediatek:
 - MT8186 support
 
 tegra:
 - debugabillity improvements
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Merge tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "Intel have enabled DG2 on certain SKUs for laptops, AMD has started
  some new GPU support, msm has user allocated VA controls

  dma-buf:
   - add dma_resv_replace_fences
   - add dma_resv_get_singleton
   - make dma_excl_fence private

  core:
   - EDID parser refactorings
   - switch drivers to drm_mode_copy/duplicate
   - DRM managed mutex initialization

  display-helper:
   - put HDMI, SCDC, HDCP, DSC and DP into new module

  gem:
   - rework fence handling

  ttm:
   - rework bulk move handling
   - add common debugfs for resource managers
   - convert to kvcalloc

  format helpers:
   - support monochrome formats
   - RGB888, RGB565 to XRGB8888 conversions

  fbdev:
   - cfb/sys_imageblit fixes
   - pagelist corruption fix
   - create offb platform device
   - deferred io improvements

  sysfb:
   - Kconfig rework
   - support for VESA mode selection

  bridge:
   - conversions to devm_drm_of_get_bridge
   - conversions to panel_bridge
   - analogix_dp - autosuspend support
   - it66121 - audio support
   - tc358767 - DSI to DPI support
   - icn6211 - PLL/I2C fixes, DT property
   - adv7611 - enable DRM_BRIDGE_OP_HPD
   - anx7625 - fill ELD if no monitor
   - dw_hdmi - add audio support
   - lontium LT9211 support, i.MXMP LDB
   - it6505: Kconfig fix, DPCD set power fix
   - adv7511 - CEC support for ADV7535

  panel:
   - ltk035c5444t, B133UAN01, NV3052C panel support
   - DataImage FG040346DSSWBG04 support
   - st7735r - DT bindings fix
   - ssd130x - fixes

  i915:
   - DG2 laptop PCI-IDs ("motherboard down")
   - Initial RPL-P PCI IDs
   - compute engine ABI
   - DG2 Tile4 support
   - DG2 CCS clear color compression support
   - DG2 render/media compression formats support
   - ATS-M platform info
   - RPL-S PCI IDs added
   - Bump ADL-P DMC version to v2.16
   - Support static DRRS
   - Support multiple eDP/LVDS native mode refresh rates
   - DP HDR support for HSW+
   - Lots of display refactoring + fixes
   - GuC hwconfig support and query
   - sysfs support for multi-tile
   - fdinfo per-client gpu utilisation
   - add geometry subslices query
   - fix prime mmap with LMEM
   - fix vm open count and remove vma refcounts
   - contiguous allocation fixes
   - steered register write support
   - small PCI BAR enablement
   - GuC error capture support
   - sunset igpu legacy mmap support for newer devices
   - GuC version 70.1.1 support

  amdgpu:
   - Initial SoC21 support
   - SMU 13.x enablement
   - SMU 13.0.4 support
   - ttm_eu cleanups
   - USB-C, GPUVM updates
   - TMZ fixes for RV
   - RAS support for VCN
   - PM sysfs code cleanup
   - DC FP rework
   - extend CG/PG flags to 64-bit
   - SI dpm lockdep fix
   - runtime PM fixes

  amdkfd:
   - RAS/SVM fixes
   - TLB flush fixes
   - CRIU GWS support
   - ignore bogus MEC signals more efficiently

  msm:
   - Fourcc modifier for tiled but not compressed layouts
   - Support for userspace allocated IOVA (GPU virtual address)
   - DPU: DSC (Display Stream Compression) support
   - DP: eDP support
   - DP: conversion to use drm_bridge and drm_bridge_connector
   - Merge DPU1 and MDP5 MDSS driver
   - DPU: writeback support

  nouveau:
   - make some structures static
   - make some variables static
   - switch to drm_gem_plane_helper_prepare_fb

  radeon:
   - misc fixes/cleanups

  mxsfb:
   - rework crtc mode setting
   - LCDIF CRC support

  etnaviv:
   - fencing improvements
   - fix address space collisions
   - cleanup MMU reference handling

  gma500:
   - GEM/GTT improvements
   - connector handling fixes

  komeda:
   - switch to plane reset helper

  mediatek:
   - MIPI DSI improvements

  omapdrm:
   - GEM improvements

  qxl:
   - aarch64 support

  vc4:
   - add a CL submission tracepoint
   - HDMI YUV support
   - HDMI/clock improvements
   - drop is_hdmi caching

  virtio:
   - remove restriction of non-zero blob types

  vmwgfx:
   - support for cursormob and cursorbypass 4
   - fence improvements

  tidss:
   - reset DISPC on startup

  solomon:
   - SPI support
   - DT improvements

  sun4i:
   - allwinner D1 support
   - drop is_hdmi caching

  imx:
   - use swap() instead of open-coding
   - use devm_platform_ioremap_resource
   - remove redunant initializations

  ast:
   - Displayport support

  rockchip:
   - Refactor IOMMU initialisation
   - make some structures static
   - replace drm_detect_hdmi_monitor with drm_display_info.is_hdmi
   - support swapped YUV formats,
   - clock improvements
   - rk3568 support
   - VOP2 support

  mediatek:
   - MT8186 support

  tegra:
   - debugabillity improvements"

* tag 'drm-next-2022-05-25' of git://anongit.freedesktop.org/drm/drm: (1740 commits)
  drm/i915/dsi: fix VBT send packet port selection for ICL+
  drm/i915/uc: Fix undefined behavior due to shift overflowing the constant
  drm/i915/reg: fix undefined behavior due to shift overflowing the constant
  drm/i915/gt: Fix use of static in macro mismatch
  drm/i915/audio: fix audio code enable/disable pipe logging
  drm/i915: Fix CFI violation with show_dynamic_id()
  drm/i915: Fix 'mixing different enum types' warnings in intel_display_power.c
  drm/i915/gt: Fix build error without CONFIG_PM
  drm/msm/dpu: handle pm_runtime_get_sync() errors in bind path
  drm/msm/dpu: add DRM_MODE_ROTATE_180 back to supported rotations
  drm/msm: don't free the IRQ if it was not requested
  drm/msm/dpu: limit writeback modes according to max_linewidth
  drm/amd: Don't reset dGPUs if the system is going to s2idle
  drm/amdgpu: Unmap legacy queue when MES is enabled
  drm: msm: fix possible memory leak in mdp5_crtc_cursor_set()
  drm/msm: Fix fb plane offset calculation
  drm/msm/a6xx: Fix refcount leak in a6xx_gpu_init
  drm/msm/dsi: don't powerup at modeset time for parade-ps8640
  drm/rockchip: Change register space names in vop2
  dt-bindings: display: rockchip: make reg-names mandatory for VOP2
  ...
2022-05-25 16:18:27 -07:00
Linus Torvalds
86c87bea6b Devicetree updates for v5.19:
Bindings:
 - Convert smsc,lan91c111, qcom,spi-qup, qcom,msm-uartdm, qcom,i2c-qup,
   qcom,gsbi, i2c-mt65xx, TI wkup_m3_ipc (and new props), qcom,smp2p, TI
   timer, Mediatek gnss, Mediatek topckgen, Mediatek apmixedsys, Mediatek
   infracfg, fsl,ls-extirq, fsl,layerscape-dcfg, QCom PMIC SPMI,
   rda,8810pl-timer, Xilinx zynqmp_ipi, uniphier-pcie, and Ilitek
   touchscreen controllers
 
 - Convert various Arm Ltd peripheral IP bindings to schemas
 
 - New bindings for Menlo board CPLD, DH electronics board CPLD,
   Qualcomm Geni based QUP I2C, Renesas RZ/G2UL OSTM, Broafcom BCM4751
   GNSS, MT6360 PMIC, ASIX USB Ethernet controllers, and Microchip/SMSC
   LAN95xx USB Ethernet controllers
 
 - Add vendor prefix for Enclustra
 
 - Add various compatible string additions
 
 - Various example fixes and cleanups
 
 - Remove unused hisilicon,hi6220-reset binding
 
 - Treewide fix properties missing type definition
 
 - Drop some empty and unreferenced .txt bindings
 
 - Documentation improvements for writing schemas
 
 DT driver core:
 - Drop static IRQ resources for DT platform devices as IRQ setup is
   dynamic and drivers have all been converted to use platform_get_irq()
   and friends
 
 - Rework memory allocations and frees for overlays
 
 - Continue overlay notifier callbacks on successful calls and add
   unittests
 
 - Handle 'interrupts-extended' in early DT IRQ setup
 
 - Fix of_property_read_string() errors to match documentation
 
 - Ignore disabled nodes in FDT API calls
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Merge tag 'devicetree-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "Bindings:

   - Convert smsc,lan91c111, qcom,spi-qup, qcom,msm-uartdm,
     qcom,i2c-qup, qcom,gsbi, i2c-mt65xx, TI wkup_m3_ipc (and new
     props), qcom,smp2p, TI timer, Mediatek gnss, Mediatek topckgen,
     Mediatek apmixedsys, Mediatek infracfg, fsl,ls-extirq,
     fsl,layerscape-dcfg, QCom PMIC SPMI, rda,8810pl-timer, Xilinx
     zynqmp_ipi, uniphier-pcie, and Ilitek touchscreen controllers

   - Convert various Arm Ltd peripheral IP bindings to schemas

   - New bindings for Menlo board CPLD, DH electronics board CPLD,
     Qualcomm Geni based QUP I2C, Renesas RZ/G2UL OSTM, Broafcom BCM4751
     GNSS, MT6360 PMIC, ASIX USB Ethernet controllers, and
     Microchip/SMSC LAN95xx USB Ethernet controllers

   - Add vendor prefix for Enclustra

   - Add various compatible string additions

   - Various example fixes and cleanups

   - Remove unused hisilicon,hi6220-reset binding

   - Treewide fix properties missing type definition

   - Drop some empty and unreferenced .txt bindings

   - Documentation improvements for writing schemas

  DT driver core:

   - Drop static IRQ resources for DT platform devices as IRQ setup is
     dynamic and drivers have all been converted to use
     platform_get_irq() and friends

   - Rework memory allocations and frees for overlays

   - Continue overlay notifier callbacks on successful calls and add
     unittests

   - Handle 'interrupts-extended' in early DT IRQ setup

   - Fix of_property_read_string() errors to match documentation

   - Ignore disabled nodes in FDT API calls"

* tag 'devicetree-for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (86 commits)
  of/irq: fix typo in comment
  dt-bindings: Fix properties without any type
  Revert "dt-bindings: mailbox: qcom-ipcc: add missing properties into example"
  dt-bindings: input: touchscreen: ilitek_ts_i2c: Absorb ili2xxx bindings
  dt-bindings: timer: samsung,exynos4210-mct: define strict clock order
  dt-bindings: timer: samsung,exynos4210-mct: drop unneeded minItems
  dt-bindings: timer: cdns,ttc: drop unneeded minItems
  dt-bindings: mailbox: zynqmp_ipi: convert to yaml
  dt-bindings: usb: ci-hdrc-usb2: fix node node for ethernet controller
  dt-bindings: net: add schema for Microchip/SMSC LAN95xx USB Ethernet controllers
  dt-bindings: net: add schema for ASIX USB Ethernet controllers
  of/fdt: Ignore disabled memory nodes
  dt-bindings: arm: fix typos in compatible
  dt-bindings: mfd: Add bindings child nodes for the Mediatek MT6360
  dt-bindings: display: convert Arm Komeda to DT schema
  dt-bindings: display: convert Arm Mali-DP to DT schema
  dt-bindings: display: convert Arm HDLCD to DT schema
  dt-bindings: display: convert PL110/PL111 to DT schema
  dt-bindings: arm: convert vexpress-config to DT schema
  dt-bindings: arm: convert vexpress-sysregs to DT schema
  ...
2022-05-25 14:56:06 -07:00
Linus Torvalds
268db333b5 Device properties framework updates for 5.19-rc1
- Allow error pointer to be passed to fwnode APIs (Andy Shevchenko).
 
  - Introduce fwnode_for_each_parent_node() (Andy Shevchenko, Douglas
    Anderson).
 
  - Advertise fwnode and device property count API calls (Andy
    Shevchenko).
 
  - Clean up fwnode_is_ancestor_of() (Andy Shevchenko).
 
  - Convert device_{dma_supported,get_dma_attr} to fwnode (Sakari Ailus).
 
  - Release subnode properties with data nodes (Sakari Ailus).
 
  - Add ->iomap() and ->irq_get() to fwnode operations (Sakari Ailus).
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Merge tag 'devprop-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull device properties framework updates from Rafael Wysocki:
 "These mostly extend the device property API and make it easier to use
  in some cases.

  Specifics:

   - Allow error pointer to be passed to fwnode APIs (Andy Shevchenko).

   - Introduce fwnode_for_each_parent_node() (Andy Shevchenko, Douglas
     Anderson).

   - Advertise fwnode and device property count API calls (Andy
     Shevchenko).

   - Clean up fwnode_is_ancestor_of() (Andy Shevchenko).

   - Convert device_{dma_supported,get_dma_attr} to fwnode (Sakari
     Ailus).

   - Release subnode properties with data nodes (Sakari Ailus).

   - Add ->iomap() and ->irq_get() to fwnode operations (Sakari Ailus)"

* tag 'devprop-5.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  device property: Advertise fwnode and device property count API calls
  device property: Fix recent breakage of fwnode_get_next_parent_dev()
  device property: Drop 'test' prefix in parameters of fwnode_is_ancestor_of()
  device property: Introduce fwnode_for_each_parent_node()
  device property: Allow error pointer to be passed to fwnode APIs
  ACPI: property: Release subnode properties with data nodes
  device property: Add irq_get to fwnode operation
  device property: Add iomap to fwnode operations
  ACPI: property: Move acpi_fwnode_device_get_match_data() up
  device property: Convert device_{dma_supported,get_dma_attr} to fwnode
2022-05-24 16:34:14 -07:00
Linus Torvalds
d335371940 MTD core changes:
* Call of_platform_populate() for MTD partitions
 * Check devicetree alias for index
 * mtdoops:
   - Add a timestamp to the mtdoops header.
   - Create a header structure for the saved mtdoops.
   - Fix the size of the header read buffer.
 * mtdblock: Warn if opened on NAND
 * Bindings:
   - reserved-memory: Support MTD/block device
   - jedec,spi-nor: remove unneeded properties
   - Extend fixed-partitions binding
   - Add Sercomm (Suzhou) Corporation vendor prefix
 
 MTD driver changes:
 * st_spi_fsm: add missing clk_disable_unprepare() in stfsm_remove()
 * phram:
   - Allow cached mappings
   - Allow probing via reserved-memory
 * maps: ixp4xx: Drop driver
 * bcm47xxpart: Print correct offset on read error
 
 CFI driver changes:
 * Rename chip_ready variables
 * Add S29GL064N ID definition
 * Use chip_ready() for write on S29GL064N
 * Move and rename chip_check/chip_ready/chip_good_for_write
 
 NAND core changes:
 * Print offset instead of page number for bad blocks
 
 Raw NAND controller drivers:
 * Cadence: Fix possible null-ptr-deref in cadence_nand_dt_probe()
 * CS553X: simplify the return expression of cs553x_write_ctrl_byte()
 * Davinci: Remove redundant unsigned comparison to zero
 * Denali: Use managed device resources
 * GPMI:
   - Add large oob bch setting support
   - Rename the variable ecc_chunk_size
   - Uninline the gpmi_check_ecc function
   - Add strict ecc strength check
   - Refactor BCH geometry settings function
 * Intel: Fix possible null-ptr-deref in ebu_nand_probe()
 * MPC5121: Check before clk_disable_unprepare() not needed
 * Mtk:
   - MTD_NAND_ECC_MEDIATEK should depend on ARCH_MEDIATEK
   - Also parse the default nand-ecc-engine property if available
   - Make mtk_ecc.c a separated module
 * OMAP ELM:
   - Convert the bindings to yaml
   - Describe the bindings for AM64 ELM
   - Add support for its compatible
 * Renesas: Use runtime PM instead of the raw clock API and update the
            bindings accordingly
 * Rockchip: Check before clk_disable_unprepare() not needed
 * TMIO: Check return value after calling platform_get_resource()
 
 Raw NAND chip driver:
 * Kioxia: Add support for TH58NVG3S0HBAI4 and TC58NVG0S3HTA00
 
 SPI-NAND chip drivers:
 * Gigadevice:
   - Add support for:
     - GD5FxGM7xExxG
     - GD5F{2,4}GQ5xExxG
     - GD5F1GQ5RExxG
     - GD5FxGQ4xExxG
   - Fix Quad IO for GD5F1GQ5UExxG
 * XTX: Add support for XT26G0xA
 
 SPI NOR core changes:
 * Read back written SR value to make sure the write was done correctly.
 * Introduce a common function for Read ID that manufacturer drivers can
   use to verify the Octal DTR switch worked correctly.
 * Add helpers for read/write any register commands so manufacturer
   drivers don't open code it every time.
 * Clarify rdsr dummy cycles documentation.
 * Add debugfs entry to expose internal flash parameters and state.
 
 SPI NOR manufacturer drivers changes:
 * Add support for Winbond W25Q512NW-IM, and Eon EN25QH256A.
 * Move spi_nor_write_ear() to Winbond module since only Winbond flashes
   use it.
 * Rework Micron and Cypress Octal DTR enable methods to improve
   readability.
 * Use the common Read ID function to verify switch to Octal DTR mode for
   Micron and Cypress flashes.
 * Skip polling status on volatile register writes for Micron and Cypress
   flashes since the operation is instant.
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Merge tag 'mtd/for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull mtd updates from Miquel Raynal:
 "MTD core changes:
   - Call of_platform_populate() for MTD partitions
   - Check devicetree alias for index
   - mtdoops:
      - Add a timestamp to the mtdoops header.
      - Create a header structure for the saved mtdoops.
      - Fix the size of the header read buffer.
   - mtdblock: Warn if opened on NAND
   - Bindings:
      - reserved-memory: Support MTD/block device
      - jedec,spi-nor: remove unneeded properties
      - Extend fixed-partitions binding
      - Add Sercomm (Suzhou) Corporation vendor prefix

  MTD driver changes:
   - st_spi_fsm: add missing clk_disable_unprepare() in stfsm_remove()
   - phram:
      - Allow cached mappings
      - Allow probing via reserved-memory
   - maps: ixp4xx: Drop driver
   - bcm47xxpart: Print correct offset on read error

  CFI driver changes:
   - Rename chip_ready variables
   - Add S29GL064N ID definition
   - Use chip_ready() for write on S29GL064N
   - Move and rename chip_check/chip_ready/chip_good_for_write

  NAND core changes:
   - Print offset instead of page number for bad blocks

  Raw NAND controller drivers:
   - Cadence: Fix possible null-ptr-deref in cadence_nand_dt_probe()
   - CS553X: simplify the return expression of cs553x_write_ctrl_byte()
   - Davinci: Remove redundant unsigned comparison to zero
   - Denali: Use managed device resources
   - GPMI:
      - Add large oob bch setting support
      - Rename the variable ecc_chunk_size
      - Uninline the gpmi_check_ecc function
      - Add strict ecc strength check
      - Refactor BCH geometry settings function
   - Intel: Fix possible null-ptr-deref in ebu_nand_probe()
   - MPC5121: Check before clk_disable_unprepare() not needed
   - Mtk:
      - MTD_NAND_ECC_MEDIATEK should depend on ARCH_MEDIATEK
      - Also parse the default nand-ecc-engine property if available
      - Make mtk_ecc.c a separated module
   - OMAP ELM:
      - Convert the bindings to yaml
      - Describe the bindings for AM64 ELM
      - Add support for its compatible
   - Renesas: Use runtime PM instead of the raw clock API and update the
     bindings accordingly
   - Rockchip: Check before clk_disable_unprepare() not needed
   - TMIO: Check return value after calling platform_get_resource()

  Raw NAND chip driver:
   - Kioxia: Add support for TH58NVG3S0HBAI4 and TC58NVG0S3HTA00

  SPI-NAND chip drivers:
   - Gigadevice:
      - Add support for:
         - GD5FxGM7xExxG
         - GD5F{2,4}GQ5xExxG
         - GD5F1GQ5RExxG
         - GD5FxGQ4xExxG
      - Fix Quad IO for GD5F1GQ5UExxG
   - XTX: Add support for XT26G0xA

  SPI NOR core changes:
   - Read back written SR value to make sure the write was done
     correctly.
   - Introduce a common function for Read ID that manufacturer drivers
     can use to verify the Octal DTR switch worked correctly.
   - Add helpers for read/write any register commands so manufacturer
     drivers don't open code it every time.
   - Clarify rdsr dummy cycles documentation.
   - Add debugfs entry to expose internal flash parameters and state.

  SPI NOR manufacturer drivers changes:
   - Add support for Winbond W25Q512NW-IM, and Eon EN25QH256A.
   - Move spi_nor_write_ear() to Winbond module since only Winbond
     flashes use it.
   - Rework Micron and Cypress Octal DTR enable methods to improve
     readability.
   - Use the common Read ID function to verify switch to Octal DTR mode
     for Micron and Cypress flashes.
   - Skip polling status on volatile register writes for Micron and
     Cypress flashes since the operation is instant"

* tag 'mtd/for-5.19' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (68 commits)
  mtd: st_spi_fsm: add missing clk_disable_unprepare() in stfsm_remove()
  dt-bindings: mtd: partitions: Extend fixed-partitions binding
  dt-bindings: Add Sercomm (Suzhou) Corporation vendor prefix
  mtd: phram: Allow cached mappings
  mtd: call of_platform_populate() for MTD partitions
  mtd: rawnand: renesas: Use runtime PM instead of the raw clock API
  dt-bindings: mtd: renesas: Fix the NAND controller description
  mtd: rawnand: mpc5121: Check before clk_disable_unprepare() not needed
  mtd: rawnand: rockchip: Check before clk_disable_unprepare() not needed
  mtd: nand: MTD_NAND_ECC_MEDIATEK should depend on ARCH_MEDIATEK
  mtd: rawnand: cs553x: simplify the return expression of cs553x_write_ctrl_byte()
  mtd: rawnand: kioxia: Add support for TH58NVG3S0HBAI4
  mtd: spi-nor: debugfs: fix format specifier
  mtd: spi-nor: support eon en25qh256a variant
  mtd: spi-nor: winbond: add support for W25Q512NW-IM
  mtd: spi-nor: expose internal parameters via debugfs
  mtd: spi-nor: export spi_nor_hwcaps_pp2cmd()
  mtd: spi-nor: move spi_nor_write_ear() to winbond module
  mtd: spi-nor: amend the rdsr dummy cycles documentation
  mtd: cfi_cmdset_0002: Rename chip_ready variables
  ...
2022-05-24 14:31:29 -07:00
Julia Lawall
d036d915b6 of/irq: fix typo in comment
Spelling mistake (triple letters) in comment.
Detected with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220521111145.81697-59-Julia.Lawall@inria.fr
2022-05-23 16:37:01 -05:00
Andre Przywara
df5cd36987 of/fdt: Ignore disabled memory nodes
When we boot a machine using a devicetree, the generic DT code goes
through all nodes with a 'device_type = "memory"' property, and collects
all memory banks mentioned there. However it does not check for the
status property, so any nodes which are explicitly "disabled" will still
be added as a memblock.
This ends up badly for QEMU, when booting with secure firmware on
arm/arm64 machines, because QEMU adds a node describing secure-only
memory:
===================
	secram@e000000 {
		secure-status = "okay";
		status = "disabled";
		reg = <0x00 0xe000000 0x00 0x1000000>;
		device_type = "memory";
	};
===================

The kernel will eventually use that memory block (which is located below
the main DRAM bank), but accesses to that will be answered with an
SError:
===================
[    0.000000] Internal error: synchronous external abort: 96000050 [#1] PREEMPT SMP
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 5.18.0-rc6-00014-g10c8acb8b679 #524
[    0.000000] Hardware name: linux,dummy-virt (DT)
[    0.000000] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[    0.000000] pc : new_slab+0x190/0x340
[    0.000000] lr : new_slab+0x184/0x340
[    0.000000] sp : ffff80000a4b3d10
....
==================
The actual crash location and call stack will be somewhat random, and
depend on the specific allocation of that physical memory range.

As the DT spec[1] explicitly mentions standard properties, add a simple
check to skip over disabled memory nodes, so that we only use memory
that is meant for non-secure code to use.

That fixes booting a QEMU arm64 VM with EL3 enabled ("secure=on"), when
not using UEFI. In this case the QEMU generated DT will be handed on
to the kernel, which will see the secram node.
This issue is reproducible when using TF-A together with U-Boot as
firmware, then booting with the "booti" command.

When using U-Boot as an UEFI provider, the code there [2] explicitly
filters for disabled nodes when generating the UEFI memory map, so we
are safe.
EDK/2 only reads the first bank of the first DT memory node [3] to learn
about memory, so we got lucky there.

[1] https://github.com/devicetree-org/devicetree-specification/blob/main/source/chapter3-devicenodes.rst#memory-node (after the table)
[2] https://source.denx.de/u-boot/u-boot/-/blob/master/lib/fdtdec.c#L1061-1063
[3] https://github.com/tianocore/edk2/blob/master/ArmVirtPkg/PrePi/FdtParser.c

Reported-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Andre Przywara <andre.przywara@arm.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220517101410.3493781-1-andre.przywara@arm.com
2022-05-17 13:06:32 -05:00
Zhen Lei
8af6b91f58 of: Support more than one crash kernel regions for kexec -s
When "crashkernel=X,high" is used, there may be two crash regions:
high=crashk_res and low=crashk_low_res. But now the syscall
kexec_file_load() only add crashk_res into "linux,usable-memory-range",
this may cause the second kernel to have no available dma memory.

Fix it like kexec-tools does for option -c, add both 'high' and 'low'
regions into the dtb.

Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Acked-by: Rob Herring <robh@kernel.org>
Acked-by: Baoquan He <bhe@redhat.com>
Link: https://lore.kernel.org/r/20220506114402.365-6-thunder.leizhen@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-05-07 19:57:35 +01:00
Chen Zhou
fb319e77a0 of: fdt: Add memory for devices by DT property "linux,usable-memory-range"
When reserving crashkernel in high memory, some low memory is reserved
for crash dump kernel devices and never mapped by the first kernel.
This memory range is advertised to crash dump kernel via DT property
under /chosen,
        linux,usable-memory-range = <BASE1 SIZE1 [BASE2 SIZE2]>

We reused the DT property linux,usable-memory-range and made the low
memory region as the second range "BASE2 SIZE2", which keeps compatibility
with existing user-space and older kdump kernels.

Crash dump kernel reads this property at boot time and call memblock_add()
to add the low memory region after memblock_cap_memory_range() has been
called.

Signed-off-by: Chen Zhou <chenzhou10@huawei.com>
Co-developed-by: Zhen Lei <thunder.leizhen@huawei.com>
Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Tested-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Acked-by: Baoquan He <bhe@redhat.com>
Link: https://lore.kernel.org/r/20220506114402.365-5-thunder.leizhen@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2022-05-07 19:54:33 +01:00
Frank Rowand
421f4d14bc of: overlay: do not free changeset when of_overlay_apply returns error
New unittests for overlay notifiers reveal a memory leak in
of_overlay_apply() when a notifier returns an error for action
OF_OVERLAY_POST_APPLY.  The pr_err() message is:

   OF: ERROR: memory leak, expected refcount 1 instead of 3,
   of_node_get()/of_node_put() unbalanced - destroy cset entry: attach
   overlay node /testcase-data/overlay-node/test-bus/test-unittest17

Change the error path to no longer call free_overlay_changeset(),
and document that the caller of of_overlay_fdt_apply() may choose
to remove the overlay.

Update the unittest that triggered the error to expect the changed
return values and to call of_overlay_remove().

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220502181742.1402826-4-frowand.list@gmail.com
2022-05-03 11:53:15 -05:00
Frank Rowand
992b0dc5c3 of: overlay: unittest: add tests for overlay notifiers
Add tests for overlay apply and remove notifiers.  Trigger errors
for each of the notifier actions.

These tests will reveal a memory leak problem when a notifier returns
an error for action OF_OVERLAY_POST_APPLY.  The pr_err() message is:

   OF: ERROR: memory leak, expected refcount 1 instead of 3,
   of_node_get()/of_node_put() unbalanced - destroy cset entry: attach
   overlay node /testcase-data/overlay-node/test-bus/test-unittest17

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220502181742.1402826-3-frowand.list@gmail.com
2022-05-03 11:53:15 -05:00
Frank Rowand
1ac17586c9 of: overlay: add entry to of_overlay_action_name[]
The values of enum of_overlay_notify_action are used to index into
array of_overlay_action_name.  Add an entry to of_overlay_action_name
for the value recently added to of_overlay_notify_action.

Array of_overlay_action_name[] is moved into include/linux/of.h
adjacent to enum of_overlay_notify_action to make the connection
between the two more obvious if either is modified in the future.

The only use of of_overlay_action_name is for error reporting in
overlay_notify().  All callers of overlay_notify() report the same
error, but with fewer details.  Remove the redundant error reports
in the callers.

Fixes: 067c098766 ("of: overlay: rework overlay apply and remove kfree()s")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220502181742.1402826-2-frowand.list@gmail.com
2022-05-03 11:53:15 -05:00
Frank Rowand
067c098766 of: overlay: rework overlay apply and remove kfree()s
Fix various kfree() issues related to of_overlay_apply().
  - Double kfree() of fdt and tree when init_overlay_changeset()
    returns an error.
  - free_overlay_changeset() free the root of the unflattened
    overlay (variable tree) instead of the memory that contains
    the unflattened overlay.
  - For the case of a failure during applying an overlay, move kfree()
    of new_fdt and overlay_mem into free_overlay_changeset(), which
    is called by the function that allocated them.
  - For the case of removing an overlay, the kfree() of new_fdt and
    overlay_mem remains in free_overlay_changeset().
  - Check return value of of_fdt_unflatten_tree() for error instead
    of checking the returned value of overlay_root.
  - When storing pointers to allocated objects in ovcs, do so as
    near to the allocation as possible instead of in deeply layered
    function.

More clearly document policy related to lifetime of pointers into
overlay memory.

Double kfree()
Reported-by: Slawomir Stepien <slawomir.stepien@nokia.com>

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220420222505.928492-3-frowand.list@gmail.com
2022-04-25 10:56:11 -05:00
Frank Rowand
1e4089667c of: overlay: rename variables to be consistent
Variables change name across function calls when there is not a good
reason to do so.  Fix by changing "fdt" to "new_fdt" and "tree" to
"overlay_root".

The name disparity was confusing when creating the following commit.
The name changes are in this separate commit to make review of the
following commmit less complex.

Signed-off-by: Frank Rowand <frank.rowand@sony.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220420222505.928492-2-frowand.list@gmail.com
2022-04-25 10:56:01 -05:00
Nuno Sá
5f756a2eaa of: overlay: do not break notify on NOTIFY_{OK|STOP}
We should not break overlay notifications on NOTIFY_{OK|STOP}
otherwise we might break on the first fragment. We should only stop
notifications if a *real* errno is returned by one of the listeners.

Fixes: a1d19bd4cf ("of: overlay: pr_err from return NOTIFY_OK to overlay apply/remove")
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220420130205.89435-1-nuno.sa@analog.com
2022-04-25 08:50:54 -05:00