Commit Graph

1106939 Commits

Author SHA1 Message Date
Len Brown
774627c598 tools/power turbostat: dump CPUID.7.EDX.Hybrid
CPUID leaf 7 EDX now tells us if the processor has hybrid CPUs

Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28 14:23:25 -04:00
Len Brown
7535249d10 tools/power turbostat: update turbostat.8
Update turbostat.8 to reflect new uncore frequency output (UncMHz)
Also, refresh examples.

Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28 14:23:25 -04:00
Len Brown
a5c6d65d06 tools/power turbostat: Show uncore frequency
When CONFIG_INTEL_UNCORE_FREQ_CONTROL is effective,
(Linux 5.9 and later), print the current (and default)
min and max uncore frequency limits.

When that driver provides the current uncore frequency
(Linux 5.18 and later), print a UncMHz column
reflecting the current uncore frequency.

Note that UncMHz is an instantaneous sample, not an average.

eg.

$ sudo ./turbostat -S --show frequency
...
Uncore Frequency pkg0 die0: 800 - 3900 MHz (800 - 3900 MHz)
...
Avg_MHz	Busy%	Bzy_MHz	TSC_MHz	UncMHz
28	0.70	4049	3095	3900

Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28 14:23:25 -04:00
Colin Ian King
5e5fd36c58 tools/power turbostat: Fix file pointer leak
Currently if a fscanf fails then an early return leaks an open
file pointer. Fix this by fclosing the file before the return.
Detected using static analysis with cppcheck:

tools/power/x86/turbostat/turbostat.c:2039:3: error: Resource leak: fp [resourceLeak]

Fixes: eae97e053f ("tools/power turbostat: Support thermal throttle count print")
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Chen Yu <yu.c.chen@intel.com>
Reviewed-by: Tom Rix <trix@redhat.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28 14:23:25 -04:00
Colin Ian King
e13da9a1db tools/power turbostat: replace strncmp with single character compare
Using strncmp for a single character comparison is overly complicated,
just use a simpler single character comparison instead. Also stops
static analyzers (such as cppcheck) from complaining about strncmp on
non-null terminated strings.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28 14:23:25 -04:00
Chen Yu
033312336d tools/power turbostat: print the kernel boot commandline
It would be handy to have cmdline in turbostat output. For example,
according to the turbostat output, there are no C-states requested.
In this case the user is very curious if something like
intel_idle.max_cstate=0 was used, or may be idle=none too. It is
also curious whether things like intel_pstate=nohwp were used.

Print the boot command line accordingly:
turbostat version 21.05.04 - Len Brown <lenb@kernel.org>
Kernel command line: BOOT_IMAGE=/boot/vmlinuz-5.16.0+ root=UUID=
 b42359ed-1e05-42eb-8757-6bf2a1c19070 ro quiet splash vt.handoff=7

Suggested-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Chen Yu <yu.c.chen@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28 14:23:25 -04:00
Zhang Rui
fb5e29df8d tools/power turbostat: Introduce support for RaptorLake
RaptorLake is compatible with AlderLake.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2022-07-28 14:23:25 -04:00
Linus Torvalds
e0dccc3b76 Linux 5.19-rc8 2022-07-24 13:26:27 -07:00
Adam Borowski
e90886291c certs: make system keyring depend on x509 parser
This code requires x509_load_certificate_list() to be built-in.

Fixes: 60050ffe3d ("certs: Move load_certificate_list() to be with the asymmetric keys code")
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Link: https://lore.kernel.org/all/202206221515.DqpUuvbQ-lkp@intel.com/
Link: https://lore.kernel.org/all/20220712104554.408dbf42@gandalf.local.home/
Signed-off-by: Adam Borowski <kilobyte@angband.pl>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-24 12:53:55 -07:00
Linus Torvalds
af2c9ac240 - Reorganize the perf LBR init code so that a TSX quirk is applied early
enough in order for the LBR MSR access to not #GP
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Merge tag 'perf_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fix from Borislav Petkov:

 - Reorganize the perf LBR init code so that a TSX quirk is applied
   early enough in order for the LBR MSR access to not #GP

* tag 'perf_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/lbr: Fix unchecked MSR access error on HSW
2022-07-24 09:55:53 -07:00
Linus Torvalds
c2602a7ce0 A single fix to correct a wrong BUG_ON() condition for deboosted tasks.
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Merge tag 'sched_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fix from Borislav Petkov:
 "A single fix to correct a wrong BUG_ON() condition for deboosted
  tasks"

* tag 'sched_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/deadline: Fix BUG_ON condition for deboosted tasks
2022-07-24 09:50:53 -07:00
Linus Torvalds
05017fed92 - Make retbleed mitigations 64-bit only (32-bit will need a bit more
work if even needed, at all).
 
 - Prevent return thunks patching of the LKDTM modules as it is not needed there
 
 - Avoid writing the SPEC_CTRL MSR on every kernel entry on eIBRS parts
 
 - Enhance error output of apply_returns() when it fails to patch a return thunk
 
 - A sparse fix to the sev-guest module
 
 - Protect EFI fw calls by issuing an IBPB on AMD
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Merge tag 'x86_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:
 "A couple more retbleed fallout fixes.

  It looks like their urgency is decreasing so it seems like we've
  managed to catch whatever snafus the limited -rc testing has exposed.
  Maybe we're getting ready... :)

   - Make retbleed mitigations 64-bit only (32-bit will need a bit more
     work if even needed, at all).

   - Prevent return thunks patching of the LKDTM modules as it is not
     needed there

   - Avoid writing the SPEC_CTRL MSR on every kernel entry on eIBRS
     parts

   - Enhance error output of apply_returns() when it fails to patch a
     return thunk

   - A sparse fix to the sev-guest module

   - Protect EFI fw calls by issuing an IBPB on AMD"

* tag 'x86_urgent_for_v5.19_rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/speculation: Make all RETbleed mitigations 64-bit only
  lkdtm: Disable return thunks in rodata.c
  x86/bugs: Warn when "ibrs" mitigation is selected on Enhanced IBRS parts
  x86/alternative: Report missing return thunk details
  virt: sev-guest: Pass the appropriate argument type to iounmap()
  x86/amd: Use IBPB for firmware calls
2022-07-24 09:40:17 -07:00
Linus Torvalds
714b82c18b One more fix to set the correct IO mapping for a clk gate in the lan966x
driver.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk fix from Stephen Boyd:
 "One more fix to set the correct IO mapping for a clk gate in the
  lan966x driver"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: lan966x: Fix the lan966x clock gate register address
2022-07-24 09:33:13 -07:00
Linus Torvalds
515f71412b * Check for invalid flags to KVM_CAP_X86_USER_SPACE_MSR
* Fix use of sched_setaffinity in selftests
 
 * Sync kernel headers to tools
 
 * Fix KVM_STATS_UNIT_MAX
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:

 - Check for invalid flags to KVM_CAP_X86_USER_SPACE_MSR

 - Fix use of sched_setaffinity in selftests

 - Sync kernel headers to tools

 - Fix KVM_STATS_UNIT_MAX

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Protect the unused bits in MSR exiting flags
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  KVM: selftests: Fix target thread to be migrated in rseq_test
  KVM: stats: Fix value for KVM_STATS_UNIT_MAX for boolean stats
2022-07-23 10:22:26 -07:00
Ben Hutchings
b648ab487f x86/speculation: Make all RETbleed mitigations 64-bit only
The mitigations for RETBleed are currently ineffective on x86_32 since
entry_32.S does not use the required macros.  However, for an x86_32
target, the kconfig symbols for them are still enabled by default and
/sys/devices/system/cpu/vulnerabilities/retbleed will wrongly report
that mitigations are in place.

Make all of these symbols depend on X86_64, and only enable RETHUNK by
default on X86_64.

Fixes: f43b9876e8 ("x86/retbleed: Add fine grained Kconfig knobs")
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/YtwSR3NNsWp1ohfV@decadent.org.uk
2022-07-23 18:45:11 +02:00
Linus Torvalds
301c894932 spi: Final fixes for v5.19
A few more small driver specific fixes, this is obviously rather late
 and if you think it's best to leave these until the next release that
 would be reasonable.
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Merge tag 'spi-fix-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few more small driver specific fixes"

* tag 'spi-fix-v5.19-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: spi-rspi: Fix PIO fallback on RZ platforms
  spi: spi-cadence: Fix SPI NO Slave Select macro definition
  spi: bcm2835: bcm2835_spi_handle_err(): fix NULL pointer deref for non DMA transfers
2022-07-22 16:40:03 -07:00
Linus Torvalds
70664fc10c RISC-V Fixes for 5.19-rc8
* Two kexec-related build fixes.
 * A DTS update to make the GPIO nodes match the upcoming dtschema.
 * A fix that passes -mno-relax directly to the assembler when building
   modules, to work around compilers that fail to do so.
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Merge tag 'riscv-for-linus-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - Two kexec-related build fixes

 - A DTS update to make the GPIO nodes match the upcoming dtschema

 - A fix that passes -mno-relax directly to the assembler when building
   modules, to work around compilers that fail to do so

* tag 'riscv-for-linus-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: add as-options for modules with assembly compontents
  riscv: dts: align gpio-key node names with dtschema
  RISC-V: kexec: Fix build error without CONFIG_KEXEC
  RISCV: kexec: Fix build error without CONFIG_MODULES
2022-07-22 13:02:05 -07:00
Linus Torvalds
ae21fbac18 ACPI fix for 5.19-rc8
Fix yet another piece of ACPI CPPC changes fallout on AMD
 platforms (Mario Limonciello).
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Merge tag 'acpi-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix yet another piece of ACPI CPPC changes fallout on AMD platforms
  (Mario Limonciello)"

* tag 'acpi-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: CPPC: Don't require flexible address space if X86_FEATURE_CPPC is supported
2022-07-22 12:56:49 -07:00
Linus Torvalds
a5235996e1 io_uring-5.19-2022-07-21
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Merge tag 'io_uring-5.19-2022-07-21' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:
 "Fix for a bad kfree() introduced in this cycle, and a quick fix for
  disabling buffer recycling for IORING_OP_READV.

  The latter will get reworked for 5.20, but it gets the job done for
  5.19"

* tag 'io_uring-5.19-2022-07-21' of git://git.kernel.dk/linux-block:
  io_uring: do not recycle buffer in READV
  io_uring: fix free of unallocated buffer list
2022-07-22 12:47:09 -07:00
Linus Torvalds
d945404f74 block-5.19-2022-07-21
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Merge tag 'block-5.19-2022-07-21' of git://git.kernel.dk/linux-block

Pull block fix from Jens Axboe:
 "Just a single fix for missing error propagation for an allocation
  failure in raid5"

* tag 'block-5.19-2022-07-21' of git://git.kernel.dk/linux-block:
  md/raid5: missing error code in setup_conf()
2022-07-22 12:41:14 -07:00
Linus Torvalds
4a1dcf77f4 Two driver bugfixes and a typo fix
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Merge tag 'i2c-for-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

Pull i2c fixes from Wolfram Sang:
 "Two driver bugfixes and a typo fix"

* tag 'i2c-for-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: cadence: Change large transfer count reset logic to be unconditional
  i2c: imx: fix typo in comment
  i2c: mlxcpld: Fix register setting for 400KHz frequency
2022-07-22 12:36:59 -07:00
Linus Torvalds
6f8e4e1043 gpio fixes for v5.19-rc8
- fix several regmap usage issues in gpio-pca953x
 - fix out-of-tree build for GPIO selftests
 - fix integer overflow in gpio-xilinx
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Merge tag 'gpio-fixes-for-v5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix several regmap usage issues in gpio-pca953x

 - fix out-of-tree build for GPIO selftests

 - fix integer overflow in gpio-xilinx

* tag 'gpio-fixes-for-v5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: gpio-xilinx: Fix integer overflow
  selftests: gpio: fix include path to kernel headers for out of tree builds
  gpio: pca953x: use the correct register address when regcache sync during init
  gpio: pca953x: use the correct range when do regmap sync
  gpio: pca953x: only use single read/write for No AI mode
2022-07-22 12:28:47 -07:00
Linus Torvalds
6147191112 Pin control fixes for the v5.19 kernel cycle:
- NULL check for the ralink and sunplus drivers.
 
 - Add Jacky Bai as maintainer for the Freescale pin controllers.
 
 - Fix pin config ops for the Ocelot LAN966x and SparX5.
 
 - Disallow AMD pin control to be a module: the GPIO lines
   need to be active in early boot, so no can do.
 
 - Fix the Armada 37xx to use raw spinlocks in the interrupt
   handler path to avoid wait context.
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Merge tag 'pinctrl-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Only driver fixes:

   - NULL check for the ralink and sunplus drivers

   - Add Jacky Bai as maintainer for the Freescale pin controllers

   - Fix pin config ops for the Ocelot LAN966x and SparX5

   - Disallow AMD pin control to be a module: the GPIO lines need to be
     active in early boot, so no can do

   - Fix the Armada 37xx to use raw spinlocks in the interrupt handler
     path to avoid wait context"

* tag 'pinctrl-v5.19-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: armada-37xx: use raw spinlocks for regmap to avoid invalid wait context
  pinctrl: armada-37xx: make irq_lock a raw spinlock to avoid invalid wait context
  pinctrl: Don't allow PINCTRL_AMD to be a module
  pinctrl: ocelot: Fix pincfg
  pinctrl: ocelot: Fix pincfg for lan966x
  MAINTAINERS: Update freescale pin controllers maintainer
  pinctrl: sunplus: Add check for kcalloc
  pinctrl: ralink: Check for null return of devm_kcalloc
2022-07-22 12:24:04 -07:00
Linus Torvalds
8f636c6a16 sound fixes for 5.19-rc8
Only contains the revert of Rockchip BCLK changes for addressing
 a regression.
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Merge tag 'sound-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Only undoes the Rockchip BCLK changes to address a regression"

* tag 'sound-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ASoC: rockchip-i2s: Undo BCLK pinctrl changes
  ASoC: rockchip: i2s: Fix NULL pointer dereference when pinctrl is not found
2022-07-22 12:19:02 -07:00
Linus Torvalds
85029503fc MMC host:
- sdhci-omap: Fix a lockdep warning while probing
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Merge tag 'mmc-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc

Pull MMC fix from Ulf Hansson:

 - sdhci-omap: Fix a lockdep warning while probing

* tag 'mmc-v5.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-omap: Fix a lockdep warning for PM runtime init
2022-07-22 12:14:13 -07:00
Linus Torvalds
8e65afba6b drm fixes for 5.19-rc8
scheduler:
 - scheduling while atomic fix
 
 ttm:
 - locking fix
 
 edp:
 - variable typo fix
 
 i915:
 - add back support for v69 firmware on ADL-P.
 
 amdgpu:
 - Drop redundant buffer cleanup that can lead to a segfault
 - Add a bo_list mutex to avoid possible list corruption in CS
 - dmub notification fix
 
 imx:
 - fix error path
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Merge tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Fixes for this week.

  The main one is the i915 firmware fix for the phoronix reported issue.
  I've written some firmware guidelines as a result, should land in
  -next soon. Otherwise a few amdgpu fixes, a scheduler fix, ttm fix and
  two other minor ones.

  scheduler:
   - scheduling while atomic fix

  ttm:
   - locking fix

  edp:
   - variable typo fix

  i915:
   - add back support for v69 firmware on ADL-P

  amdgpu:
   - Drop redundant buffer cleanup that can lead to a segfault
   - Add a bo_list mutex to avoid possible list corruption in CS
   - dmub notification fix

  imx:
   - fix error path"

* tag 'drm-fixes-2022-07-22' of git://anongit.freedesktop.org/drm/drm:
  drm/amdgpu: Protect the amdgpu_bo_list list with a mutex v2
  drm/imx/dcss: Add missing of_node_put() in fail path
  drm/i915/guc: support v69 in parallel to v70
  drm/i915/guc: Support programming the EU priority in the GuC descriptor
  drm/panel-edp: Fix variable typo when saving hpd absent delay from DT
  drm/amdgpu: Remove one duplicated ef removal
  drm/ttm: fix locking in vmap/vunmap TTM GEM helpers
  drm/scheduler: Don't kill jobs in interrupt context
  drm/amd/display: Fix new dmub notification enabling in DM
2022-07-22 12:03:19 -07:00
Linus Torvalds
4ba1329cbb Urgent RCU pull request for v5.19
This pull request contains a pair of commits that fix 282d8998e9 ("srcu:
 Prevent expedited GPs and blocking readers from consuming CPU"), which
 was itself a fix to an SRCU expedited grace-period problem that could
 prevent kernel live patching (KLP) from completing.  That SRCU fix for
 KLP introduced large (as in minutes) boot-time delays to embedded Linux
 kernels running on qemu/KVM.  These delays were due to the emulation of
 certain MMIO operations controlling memory layout, which were emulated
 with one expedited grace period per access.  Common configurations
 required thousands of boot-time MMIO accesses, and thus thousands of
 boot-time expedited SRCU grace periods.
 
 In these configurations, the occasional sleeps that allowed KLP to proceed
 caused excessive boot delays.  These commits preserve enough sleeps to
 permit KLP to proceed, but few enough that the virtual embedded kernels
 still boot reasonably quickly.
 
 This represents a regression introduced in the v5.19 merge window,
 and the bug is causing significant inconvenience, hence this pull request.
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Merge tag 'rcu-urgent.2022.07.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu

Pull RCU fix from Paul McKenney:
 "This contains a pair of commits that fix 282d8998e9 ("srcu: Prevent
  expedited GPs and blocking readers from consuming CPU"), which was
  itself a fix to an SRCU expedited grace-period problem that could
  prevent kernel live patching (KLP) from completing.

  That SRCU fix for KLP introduced large (as in minutes) boot-time
  delays to embedded Linux kernels running on qemu/KVM. These delays
  were due to the emulation of certain MMIO operations controlling
  memory layout, which were emulated with one expedited grace period per
  access. Common configurations required thousands of boot-time MMIO
  accesses, and thus thousands of boot-time expedited SRCU grace
  periods.

  In these configurations, the occasional sleeps that allowed KLP to
  proceed caused excessive boot delays. These commits preserve enough
  sleeps to permit KLP to proceed, but few enough that the virtual
  embedded kernels still boot reasonably quickly.

  This represents a regression introduced in the v5.19 merge window, and
  the bug is causing significant inconvenience"

* tag 'rcu-urgent.2022.07.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu:
  srcu: Make expedited RCU grace periods block even less frequently
  srcu: Block less aggressively for expedited grace periods
2022-07-22 10:01:20 -07:00
Linus Torvalds
7fb5e50831 mmu_gather: fix the CONFIG_MMU_GATHER_NO_RANGE case
Sudip reports that alpha doesn't build properly, with errors like

  include/asm-generic/tlb.h:401:1: error: redefinition of 'tlb_update_vma_flags'
    401 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma)
        | ^~~~~~~~~~~~~~~~~~~~
  include/asm-generic/tlb.h:372:1: note: previous definition of 'tlb_update_vma_flags' with type 'void(struct mmu_gather *, struct vm_area_struct *)'
    372 | tlb_update_vma_flags(struct mmu_gather *tlb, struct vm_area_struct *vma) { }

the cause being that We have this odd situation where some architectures
were never converted to the newer TLB flushing interfaces that have a
range for the flush.  Instead people left them alone, and we have them
select the MMU_GATHER_NO_RANGE config option to make the tlb header
files account for this.

Peter Zijlstra cleaned some of these nasty header file games up in
commits

  1e9fdf21a4 ("mmu_gather: Remove per arch tlb_{start,end}_vma()")
  18ba064e42 ("mmu_gather: Let there be one tlb_{start,end}_vma() implementation")

but tlb_update_vma_flags() was left alone, and then commit b67fbebd4c
("mmu_gather: Force tlb-flush VM_PFNMAP vmas") ended up removing only
_one_ of the two stale duplicate dummy inline functions.

This removes the other stale one.

Somebody braver than me should try to remove MMU_GATHER_NO_RANGE
entirely, but it requires fixing up the oddball architectures that use
it: alpha, m68k, microblaze, nios2 and openrisc.

The fixups should be fairly straightforward ("fix the build errors it
exposes by adding the appropriate range arguments"), but the reason this
wasn't done in the first place is that so few people end up working on
those architectures.  But it could be done one architecture at a time,
hint, hint.

Reported-by: Sudip Mukherjee (Codethink) <sudipm.mukherjee@gmail.com>
Fixes: b67fbebd4c ("mmu_gather: Force tlb-flush VM_PFNMAP vmas")
Link: https://lore.kernel.org/all/YtpXh0QHWwaEWVAY@debian/
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Nick Piggin <npiggin@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-22 09:28:34 -07:00
Srinivas Neeli
32c094a09d gpio: gpio-xilinx: Fix integer overflow
Current implementation is not able to configure more than 32 pins
due to incorrect data type. So type casting with unsigned long
to avoid it.

Fixes: 02b3f84d90 ("xilinx: Switch to use bitmap APIs")
Signed-off-by: Srinivas Neeli <srinivas.neeli@xilinx.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
2022-07-22 09:17:03 +02:00
Dave Airlie
7f5ec14a4e A scheduling-while-atomic fix for drm/scheduler, a locking fix for TTM,
a typo fix for panel-edp and a resource removal fix for imx/dcss
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Merge tag 'drm-misc-fixes-2022-07-21' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

A scheduling-while-atomic fix for drm/scheduler, a locking fix for TTM,
a typo fix for panel-edp and a resource removal fix for imx/dcss

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220721085550.hrwbukj34y56rzva@houat
2022-07-22 12:19:45 +10:00
Ben Dooks
c1f6eff304
riscv: add as-options for modules with assembly compontents
When trying to load modules built for RISC-V which include assembly files
the kernel loader errors with "unexpected relocation type 'R_RISCV_ALIGN'"
due to R_RISCV_ALIGN relocations being generated by the assembler.

The R_RISCV_ALIGN relocations can be removed at the expense of code space
by adding -mno-relax to gcc and as.  In commit 7a8e7da422
("RISC-V: Fixes to module loading") -mno-relax is added to the build
variable KBUILD_CFLAGS_MODULE. See [1] for more info.

The issue is that when kbuild builds a .S file, it invokes gcc with
the -mno-relax flag, but this is not being passed through to the
assembler. Adding -Wa,-mno-relax to KBUILD_AFLAGS_MODULE ensures that
the assembler is invoked correctly. This may have now been fixed in
gcc[2] and this addition should not stop newer gcc and as from working.

[1] https://github.com/riscv/riscv-elf-psabi-doc/issues/183
[2] 3b0a7d624e

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Link: https://lore.kernel.org/r/20220529152200.609809-1-ben.dooks@codethink.co.uk
Fixes: ab1ef68e54 ("RISC-V: Add sections of PLT and GOT for kernel module")
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2022-07-21 12:09:29 -07:00
Linus Torvalds
68e77ffbfd NAND controller fix:
* gpmi: Fix busy timeout setting (wrong calculation, yes again)
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Merge tag 'mtd/fixes-for-5.19-final' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux

Pull MTD fix from Richard Weinberger:
 "A aingle NAND controller fix:

   - gpmi: Fix busy timeout setting (wrong calculation, yes again)"

* tag 'mtd/fixes-for-5.19-final' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: gpmi: Set WAIT_FOR_READY timeout based on program/erase times
2022-07-21 11:28:26 -07:00
Linus Torvalds
7ca433dc6d Networking fixes for 5.19-rc8, including fixes from can.
Previous releases - regressions:
   - tcp/udp: make early_demux back namespacified.
 
   - dsa: fix issues with vlan_filtering_is_global
 
 Previous releases - always broken:
   - ip: fix data-races around ipv4_net_table (round 2, 3 & 4)
 
   - amt: fix validation and synchronization bugs
 
   - can: fix detection of mcp251863
 
   - eth: iavf: fix handling of dummy receive descriptors
 
   - eth: lan966x: fix issues with MAC table
 
   - eth: stmmac: dwmac-mediatek: fix clock issue
 
 Misc:
   - dsa: update documentation
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from can.

  Still no major regressions, most of the changes are still due to data
  races fixes, plus the usual bunch of drivers fixes.

  Previous releases - regressions:

   - tcp/udp: make early_demux back namespacified.

   - dsa: fix issues with vlan_filtering_is_global

  Previous releases - always broken:

   - ip: fix data-races around ipv4_net_table (round 2, 3 & 4)

   - amt: fix validation and synchronization bugs

   - can: fix detection of mcp251863

   - eth: iavf: fix handling of dummy receive descriptors

   - eth: lan966x: fix issues with MAC table

   - eth: stmmac: dwmac-mediatek: fix clock issue

  Misc:

   - dsa: update documentation"

* tag 'net-5.19-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (107 commits)
  mlxsw: spectrum_router: Fix IPv4 nexthop gateway indication
  net/sched: cls_api: Fix flow action initialization
  tcp: Fix data-races around sysctl_tcp_max_reordering.
  tcp: Fix a data-race around sysctl_tcp_abort_on_overflow.
  tcp: Fix a data-race around sysctl_tcp_rfc1337.
  tcp: Fix a data-race around sysctl_tcp_stdurg.
  tcp: Fix a data-race around sysctl_tcp_retrans_collapse.
  tcp: Fix data-races around sysctl_tcp_slow_start_after_idle.
  tcp: Fix a data-race around sysctl_tcp_thin_linear_timeouts.
  tcp: Fix data-races around sysctl_tcp_recovery.
  tcp: Fix a data-race around sysctl_tcp_early_retrans.
  tcp: Fix data-races around sysctl knobs related to SYN option.
  udp: Fix a data-race around sysctl_udp_l3mdev_accept.
  ip: Fix data-races around sysctl_ip_prot_sock.
  ipv4: Fix data-races around sysctl_fib_multipath_hash_fields.
  ipv4: Fix data-races around sysctl_fib_multipath_hash_policy.
  ipv4: Fix a data-race around sysctl_fib_multipath_use_neigh.
  can: rcar_canfd: Add missing of_node_put() in rcar_canfd_probe()
  can: mcp251xfd: fix detection of mcp251863
  Documentation: fix udp_wmem_min in ip-sysctl.rst
  ...
2022-07-21 11:08:35 -07:00
Peter Zijlstra
b67fbebd4c mmu_gather: Force tlb-flush VM_PFNMAP vmas
Jann reported a race between munmap() and unmap_mapping_range(), where
unmap_mapping_range() will no-op once unmap_vmas() has unlinked the
VMA; however munmap() will not yet have invalidated the TLBs.

Therefore unmap_mapping_range() will complete while there are still
(stale) TLB entries for the specified range.

Mitigate this by force flushing TLBs for VM_PFNMAP ranges.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Peter Zijlstra
18ba064e42 mmu_gather: Let there be one tlb_{start,end}_vma() implementation
Now that architectures are no longer allowed to override
tlb_{start,end}_vma() re-arrange code so that there is only one
implementation for each of these functions.

This much simplifies trying to figure out what they actually do.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Peter Zijlstra
1d7708e75c csky/tlb: Remove tlb_flush() define
The previous patch removed the tlb_flush_end() implementation which
used tlb_flush_range(). This means:

 - csky did double invalidates, a range invalidate per vma and a full
   invalidate at the end

 - csky actually has range invalidates and as such the generic
   tlb_flush implementation is more efficient for it.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Tested-by: Guo Ren <guoren@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Peter Zijlstra
1e9fdf21a4 mmu_gather: Remove per arch tlb_{start,end}_vma()
Scattered across the archs are 3 basic forms of tlb_{start,end}_vma().
Provide two new MMU_GATHER_knobs to enumerate them and remove the per
arch tlb_{start,end}_vma() implementations.

 - MMU_GATHER_NO_FLUSH_CACHE indicates the arch has flush_cache_range()
   but does *NOT* want to call it for each VMA.

 - MMU_GATHER_MERGE_VMAS indicates the arch wants to merge the
   invalidate across multiple VMAs if possible.

With these it is possible to capture the three forms:

  1) empty stubs;
     select MMU_GATHER_NO_FLUSH_CACHE and MMU_GATHER_MERGE_VMAS

  2) start: flush_cache_range(), end: empty;
     select MMU_GATHER_MERGE_VMAS

  3) start: flush_cache_range(), end: flush_tlb_range();
     default

Obviously, if the architecture does not have flush_cache_range() then
it also doesn't need to select MMU_GATHER_NO_FLUSH_CACHE.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Will Deacon <will@kernel.org>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:50:13 -07:00
Khalid Masum
23a67619bc scripts/gdb: Fix gdb 'lx-symbols' command
Currently the command 'lx-symbols' in gdb exits with the error`Function
"do_init_module" not defined in "kernel/module.c"`. This occurs because
the file kernel/module.c was moved to kernel/module/main.c.

Fix this breakage by changing the path to "kernel/module/main.c" in
LoadModuleBreakpoint.

Signed-off-by: Khalid Masum <khalid.masum.92@gmail.com>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Fixes: cfc1d27789 ("module: Move all into module/")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-21 10:40:55 -07:00
Linus Torvalds
44e29e64cf watch-queue: remove spurious double semicolon
Sedat Dilek noticed that I had an extraneous semicolon at the end of a
line in the previous patch.

It's harmless, but unintentional, and while compilers just treat it as
an extra empty statement, for all I know some other tooling might warn
about it. So clean it up before other people notice too ;)

Fixes: 353f7988dd ("watchqueue: make sure to serialize 'wqueue->defunct' properly")
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
2022-07-21 10:30:14 -07:00
Biju Das
b620aa3a7b
spi: spi-rspi: Fix PIO fallback on RZ platforms
RSPI IP on RZ/{A, G2L} SoC's has the same signal for both interrupt
and DMA transfer request. Setting DMARS register for DMA transfer
makes the signal to work as a DMA transfer request signal and
subsequent interrupt requests to the interrupt controller
are masked.

PIO fallback does not work as interrupt signal is disabled.

This patch fixes this issue by re-enabling the interrupts by
calling dmaengine_synchronize().

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20220721143449.879257-1-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-21 17:21:07 +01:00
Dylan Yudaken
934447a603 io_uring: do not recycle buffer in READV
READV cannot recycle buffers as it would lose some of the data required to
reimport that buffer.

Reported-by: Ammar Faizi <ammarfaizi2@gnuweeb.org>
Fixes: b66e65f414 ("io_uring: never call io_buffer_select() for a buffer re-select")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Link: https://lore.kernel.org/r/20220721131325.624788-1-dylany@fb.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-21 08:31:31 -06:00
Dylan Yudaken
ec8516f3b7 io_uring: fix free of unallocated buffer list
in the error path of io_register_pbuf_ring, only free bl if it was
allocated.

Reported-by: Dipanjan Das <mail.dipanjan.das@gmail.com>
Fixes: c7fb19428d ("io_uring: add support for ring mapped supplied buffers")
Signed-off-by: Dylan Yudaken <dylany@fb.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/all/CANX2M5bXKw1NaHdHNVqssUUaBCs8aBpmzRNVEYEvV0n44P7ioA@mail.gmail.com/
Link: https://lore.kernel.org/all/CANX2M5YiZBXU3L6iwnaLs-HHJXRvrxM8mhPDiMDF9Y9sAvOHUA@mail.gmail.com/
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-07-21 08:29:01 -06:00
Juri Lelli
ddfc710395 sched/deadline: Fix BUG_ON condition for deboosted tasks
Tasks the are being deboosted from SCHED_DEADLINE might enter
enqueue_task_dl() one last time and hit an erroneous BUG_ON condition:
since they are not boosted anymore, the if (is_dl_boosted()) branch is
not taken, but the else if (!dl_prio) is and inside this one we
BUG_ON(!is_dl_boosted), which is of course false (BUG_ON triggered)
otherwise we had entered the if branch above. Long story short, the
current condition doesn't make sense and always leads to triggering of a
BUG.

Fix this by only checking enqueue flags, properly: ENQUEUE_REPLENISH has
to be present, but additional flags are not a problem.

Fixes: 64be6f1f5f ("sched/deadline: Don't replenish from a !SCHED_DEADLINE entity")
Signed-off-by: Juri Lelli <juri.lelli@redhat.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220714151908.533052-1-juri.lelli@redhat.com
2022-07-21 10:35:28 +02:00
Dave Airlie
1c46f3c075 Merge tag 'amd-drm-fixes-5.19-2022-07-20' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-5.19-2022-07-20:

amdgpu:
- Drop redundant buffer cleanup that can lead to a segfault
- Add a bo_list mutex to avoid possible list corruption in CS

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220720210917.6202-1-alexander.deucher@amd.com
2022-07-21 13:22:40 +10:00
Dave Airlie
4b2b2ee1f8 - Fix the regression caused by the lack of GuC v70.
Let's accept the fallback to v69.
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Merge tag 'drm-intel-fixes-2022-07-20-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

- Fix the regression caused by the lack of GuC v70.
  Let's accept the fallback to v69.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/YtgguaR5JYK083oZ@intel.com
2022-07-21 13:22:23 +10:00
Luben Tuikov
90af0ca047 drm/amdgpu: Protect the amdgpu_bo_list list with a mutex v2
Protect the struct amdgpu_bo_list with a mutex. This is used during command
submission in order to avoid buffer object corruption as recorded in
the link below.

v2 (chk): Keep the mutex looked for the whole CS to avoid using the
	  list from multiple CS threads at the same time.

Suggested-by: Christian König <christian.koenig@amd.com>
Cc: Alex Deucher <Alexander.Deucher@amd.com>
Cc: Andrey Grodzovsky <Andrey.Grodzovsky@amd.com>
Cc: Vitaly Prosyak <Vitaly.Prosyak@amd.com>
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2048
Signed-off-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Tested-by: Luben Tuikov <luben.tuikov@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2022-07-20 16:23:34 -04:00
Linus Torvalds
353f7988dd watchqueue: make sure to serialize 'wqueue->defunct' properly
When the pipe is closed, we mark the associated watchqueue defunct by
calling watch_queue_clear().  However, while that is protected by the
watchqueue lock, new watchqueue entries aren't actually added under that
lock at all: they use the pipe->rd_wait.lock instead, and looking up
that pipe happens without any locking.

The watchqueue code uses the RCU read-side section to make sure that the
wqueue entry itself hasn't disappeared, but that does not protect the
pipe_info in any way.

So make sure to actually hold the wqueue lock when posting watch events,
properly serializing against the pipe being torn down.

Reported-by: Noam Rathaus <noamr@ssd-disclosure.com>
Cc: Greg KH <gregkh@linuxfoundation.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2022-07-20 10:46:07 -07:00
Sai Krishna Potthuri
e1502ba416
spi: spi-cadence: Fix SPI NO Slave Select macro definition
Fix SPI NO Slave Select macro definition, when all the SPI CS bits
are high which means no slave is selected.

Fixes: 21b511ddee ("spi: spi-cadence: Fix SPI CS gets toggling sporadically")
Signed-off-by: Sai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Link: https://lore.kernel.org/r/20220713164529.28444-1-amit.kumar-mahapatra@xilinx.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2022-07-20 18:45:21 +01:00
Kan Liang
b0380e1350 perf/x86/intel/lbr: Fix unchecked MSR access error on HSW
The fuzzer triggers the below trace.

[ 7763.384369] unchecked MSR access error: WRMSR to 0x689
(tried to write 0x1fffffff8101349e) at rIP: 0xffffffff810704a4
(native_write_msr+0x4/0x20)
[ 7763.397420] Call Trace:
[ 7763.399881]  <TASK>
[ 7763.401994]  intel_pmu_lbr_restore+0x9a/0x1f0
[ 7763.406363]  intel_pmu_lbr_sched_task+0x91/0x1c0
[ 7763.410992]  __perf_event_task_sched_in+0x1cd/0x240

On a machine with the LBR format LBR_FORMAT_EIP_FLAGS2, when the TSX is
disabled, a TSX quirk is required to access LBR from registers.
The lbr_from_signext_quirk_needed() is introduced to determine whether
the TSX quirk should be applied. However, the
lbr_from_signext_quirk_needed() is invoked before the
intel_pmu_lbr_init(), which parses the LBR format information. Without
the correct LBR format information, the TSX quirk never be applied.

Move the lbr_from_signext_quirk_needed() into the intel_pmu_lbr_init().
Checking x86_pmu.lbr_has_tsx in the lbr_from_signext_quirk_needed() is
not required anymore.

Both LBR_FORMAT_EIP_FLAGS2 and LBR_FORMAT_INFO have LBR_TSX flag, but
only the LBR_FORMAT_EIP_FLAGS2 requirs the quirk. Update the comments
accordingly.

Fixes: 1ac7fd8159 ("perf/x86/intel/lbr: Support LBR format V7")
Reported-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20220714182630.342107-1-kan.liang@linux.intel.com
2022-07-20 19:24:55 +02:00
Josh Poimboeuf
efc72a665a lkdtm: Disable return thunks in rodata.c
The following warning was seen:

  WARNING: CPU: 0 PID: 0 at arch/x86/kernel/alternative.c:557 apply_returns (arch/x86/kernel/alternative.c:557 (discriminator 1))
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.19.0-rc4-00008-gee88d363d156 #1
  Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-4 04/01/2014
  RIP: 0010:apply_returns (arch/x86/kernel/alternative.c:557 (discriminator 1))
  Code: ff ff 74 cb 48 83 c5 04 49 39 ee 0f 87 81 fe ff ff e9 22 ff ff ff 0f 0b 48 83 c5 04 49 39 ee 0f 87 6d fe ff ff e9 0e ff ff ff <0f> 0b 48 83 c5 04 49 39 ee 0f 87 59 fe ff ff e9 fa fe ff ff 48 89

The warning happened when apply_returns() failed to convert "JMP
__x86_return_thunk" to RET.  It was instead a JMP to nowhere, due to the
thunk relocation not getting resolved.

That rodata.o code is objcopy'd to .rodata, and later memcpy'd, so
relocations don't work (and are apparently silently ignored).

LKDTM is only used for testing, so the naked RET should be fine.  So
just disable return thunks for that file.

While at it, disable objtool and KCSAN for the file.

Fixes: 0b53c374b9 ("x86/retpoline: Use -mfunction-return")
Reported-by: kernel test robot <oliver.sang@intel.com>
Debugged-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/lkml/Ys58BxHxoDZ7rfpr@xsang-OptiPlex-9020/
2022-07-20 19:24:53 +02:00