platform/kernel/linux-starfive.git
2 years agoARM: at91: pm: avoid soft resetting AC DLL
Claudiu Beznea [Wed, 26 Oct 2022 12:41:04 +0000 (15:41 +0300)]
ARM: at91: pm: avoid soft resetting AC DLL

Do not soft reset AC DLL as controller is buggy and this operation my
introduce glitches in the controller leading to undefined behavior.

Fixes: f0bbf17958e8 ("ARM: at91: pm: add self-refresh support for sama7g5")
Depends-on: a02875c4cbd6 ("ARM: at91: pm: fix self-refresh for sama7g5")
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221026124114.985876-2-claudiu.beznea@microchip.com
2 years agoARM: dts: lan966x: Enable sgpio on pcb8291
Horatiu Vultur [Wed, 26 Oct 2022 17:43:03 +0000 (19:43 +0200)]
ARM: dts: lan966x: Enable sgpio on pcb8291

Enable sgpio node on pcb8291 as this is needed to be able to control
the LEDs on this board. Otherwise the LEDs support on the board will
not be available.
On the other board pcb8309 the sgpio is already enabled because it
needed to access the SFP ports.

Fixes: 0b7baa1a307f ("ARM: dts: lan966x: add led configuration")
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221026174303.702919-1-horatiu.vultur@microchip.com
2 years agoARM: dts: at91: sama7g5: fix signal name of pin PB2
Mihai Sain [Mon, 17 Oct 2022 08:31:19 +0000 (11:31 +0300)]
ARM: dts: at91: sama7g5: fix signal name of pin PB2

The signal name of pin PB2 with function F is FLEXCOM11_IO1
as it is defined in the datasheet.

Fixes: 7540629e2fc7 ("ARM: dts: at91: add sama7g5 SoC DT and sama7g5-ek")
Signed-off-by: Mihai Sain <mihai.sain@microchip.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/20221017083119.1643-1-mihai.sain@microchip.com
2 years agoLinux 6.1-rc1
Linus Torvalds [Sun, 16 Oct 2022 22:36:24 +0000 (15:36 -0700)]
Linux 6.1-rc1

2 years agoMerge tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 16 Oct 2022 22:27:07 +0000 (15:27 -0700)]
Merge tag 'random-6.1-rc1-for-linus' of git://git./linux/kernel/git/crng/random

Pull more random number generator updates from Jason Donenfeld:
 "This time with some large scale treewide cleanups.

  The intent of this pull is to clean up the way callers fetch random
  integers. The current rules for doing this right are:

   - If you want a secure or an insecure random u64, use get_random_u64()

   - If you want a secure or an insecure random u32, use get_random_u32()

     The old function prandom_u32() has been deprecated for a while
     now and is just a wrapper around get_random_u32(). Same for
     get_random_int().

   - If you want a secure or an insecure random u16, use get_random_u16()

   - If you want a secure or an insecure random u8, use get_random_u8()

   - If you want secure or insecure random bytes, use get_random_bytes().

     The old function prandom_bytes() has been deprecated for a while
     now and has long been a wrapper around get_random_bytes()

   - If you want a non-uniform random u32, u16, or u8 bounded by a
     certain open interval maximum, use prandom_u32_max()

     I say "non-uniform", because it doesn't do any rejection sampling
     or divisions. Hence, it stays within the prandom_*() namespace, not
     the get_random_*() namespace.

     I'm currently investigating a "uniform" function for 6.2. We'll see
     what comes of that.

  By applying these rules uniformly, we get several benefits:

   - By using prandom_u32_max() with an upper-bound that the compiler
     can prove at compile-time is ≤65536 or ≤256, internally
     get_random_u16() or get_random_u8() is used, which wastes fewer
     batched random bytes, and hence has higher throughput.

   - By using prandom_u32_max() instead of %, when the upper-bound is
     not a constant, division is still avoided, because
     prandom_u32_max() uses a faster multiplication-based trick instead.

   - By using get_random_u16() or get_random_u8() in cases where the
     return value is intended to indeed be a u16 or a u8, we waste fewer
     batched random bytes, and hence have higher throughput.

  This series was originally done by hand while I was on an airplane
  without Internet. Later, Kees and I worked on retroactively figuring
  out what could be done with Coccinelle and what had to be done
  manually, and then we split things up based on that.

  So while this touches a lot of files, the actual amount of code that's
  hand fiddled is comfortably small"

* tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  prandom: remove unused functions
  treewide: use get_random_bytes() when possible
  treewide: use get_random_u32() when possible
  treewide: use get_random_{u8,u16}() when possible, part 2
  treewide: use get_random_{u8,u16}() when possible, part 1
  treewide: use prandom_u32_max() when possible, part 2
  treewide: use prandom_u32_max() when possible, part 1

2 years agoMerge tag 'perf-tools-for-v6.1-2-2022-10-16' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Sun, 16 Oct 2022 22:14:29 +0000 (15:14 -0700)]
Merge tag 'perf-tools-for-v6.1-2-2022-10-16' of git://git./linux/kernel/git/acme/linux

Pull more perf tools updates from Arnaldo Carvalho de Melo:

 - Use BPF CO-RE (Compile Once, Run Everywhere) to support old kernels
   when using bperf (perf BPF based counters) with cgroups.

 - Support HiSilicon PCIe Performance Monitoring Unit (PMU), that
   monitors bandwidth, latency, bus utilization and buffer occupancy.

   Documented in Documentation/admin-guide/perf/hisi-pcie-pmu.rst.

 - User space tasks can migrate between CPUs, so when tracing selected
   CPUs, system-wide sideband is still needed, fix it in the setup of
   Intel PT on hybrid systems.

 - Fix metricgroups title message in 'perf list', it should state that
   the metrics groups are to be used with the '-M' option, not '-e'.

 - Sync the msr-index.h copy with the kernel sources, adding support for
   using "AMD64_TSC_RATIO" in filter expressions in 'perf trace' as well
   as decoding it when printing the MSR tracepoint arguments.

 - Fix program header size and alignment when generating a JIT ELF in
   'perf inject'.

 - Add multiple new Intel PT 'perf test' entries, including a jitdump
   one.

 - Fix the 'perf test' entries for 'perf stat' CSV and JSON output when
   running on PowerPC due to an invalid topology number in that arch.

 - Fix the 'perf test' for arm_coresight failures on the ARM Juno
   system.

 - Fix the 'perf test' attr entry for PERF_FORMAT_LOST, adding this
   option to the or expression expected in the intercepted
   perf_event_open() syscall.

 - Add missing condition flags ('hs', 'lo', 'vc', 'vs') for arm64 in the
   'perf annotate' asm parser.

 - Fix 'perf mem record -C' option processing, it was being chopped up
   when preparing the underlying 'perf record -e mem-events' and thus
   being ignored, requiring using '-- -C CPUs' as a workaround.

 - Improvements and tidy ups for 'perf test' shell infra.

 - Fix Intel PT information printing segfault in uClibc, where a NULL
   format was being passed to fprintf.

* tag 'perf-tools-for-v6.1-2-2022-10-16' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: (23 commits)
  tools arch x86: Sync the msr-index.h copy with the kernel sources
  perf auxtrace arm64: Add support for parsing HiSilicon PCIe Trace packet
  perf auxtrace arm64: Add support for HiSilicon PCIe Tune and Trace device driver
  perf auxtrace arm: Refactor event list iteration in auxtrace_record__init()
  perf tests stat+json_output: Include sanity check for topology
  perf tests stat+csv_output: Include sanity check for topology
  perf intel-pt: Fix system_wide dummy event for hybrid
  perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc
  perf test: Fix attr tests for PERF_FORMAT_LOST
  perf test: test_intel_pt.sh: Add 9 tests
  perf inject: Fix GEN_ELF_TEXT_OFFSET for jit
  perf test: test_intel_pt.sh: Add jitdump test
  perf test: test_intel_pt.sh: Tidy some alignment
  perf test: test_intel_pt.sh: Print a message when skipping kernel tracing
  perf test: test_intel_pt.sh: Tidy some perf record options
  perf test: test_intel_pt.sh: Fix return checking again
  perf: Skip and warn on unknown format 'configN' attrs
  perf list: Fix metricgroups title message
  perf mem: Fix -C option behavior for perf mem record
  perf annotate: Add missing condition flags for arm64
  ...

2 years agoMerge tag 'kbuild-fixes-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahi...
Linus Torvalds [Sun, 16 Oct 2022 18:12:22 +0000 (11:12 -0700)]
Merge tag 'kbuild-fixes-v6.1' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y compile error for the
   combination of Clang >= 14 and GAS <= 2.35.

 - Drop vmlinux.bz2 from the rpm package as it just annoyingly increased
   the package size.

 - Fix modpost error under build environments using musl.

 - Make *.ll files keep value names for easier debugging

 - Fix single directory build

 - Prevent RISC-V from selecting the broken DWARF5 support when Clang
   and GAS are used together.

* tag 'kbuild-fixes-v6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5
  kbuild: fix single directory build
  kbuild: add -fno-discard-value-names to cmd_cc_ll_c
  scripts/clang-tools: Convert clang-tidy args to list
  modpost: put modpost options before argument
  kbuild: Stop including vmlinux.bz2 in the rpm's
  Kconfig.debug: add toolchain checks for DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT
  Kconfig.debug: simplify the dependency of DEBUG_INFO_DWARF4/5

2 years agoMerge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Linus Torvalds [Sun, 16 Oct 2022 18:08:19 +0000 (11:08 -0700)]
Merge tag 'clk-for-linus' of git://git./linux/kernel/git/clk/linux

Pull more clk updates from Stephen Boyd:
 "This is the final part of the clk patches for this merge window.

  The clk rate range series needed another week to fully bake. Maxime
  fixed the bug that broke clk notifiers and prevented this from being
  included in the first pull request. He also added a unit test on top
  to make sure it doesn't break so easily again. The majority of the
  series fixes up how the clk_set_rate_*() APIs work, particularly
  around when the rate constraints are dropped and how they move around
  when reparenting clks. Overall it's a much needed improvement to the
  clk rate range APIs that used to be pretty broken if you looked
  sideways.

  Beyond the core changes there are a few driver fixes for a compilation
  issue or improper data causing clks to fail to register or have the
  wrong parents. These are good to get in before the first -rc so that
  the system actually boots on the affected devices"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (31 commits)
  clk: tegra: Fix Tegra PWM parent clock
  clk: at91: fix the build with binutils 2.27
  clk: qcom: gcc-msm8660: Drop hardcoded fixed board clocks
  clk: mediatek: clk-mux: Add .determine_rate() callback
  clk: tests: Add tests for notifiers
  clk: Update req_rate on __clk_recalc_rates()
  clk: tests: Add missing test case for ranges
  clk: qcom: clk-rcg2: Take clock boundaries into consideration for gfx3d
  clk: Introduce the clk_hw_get_rate_range function
  clk: Zero the clk_rate_request structure
  clk: Stop forwarding clk_rate_requests to the parent
  clk: Constify clk_has_parent()
  clk: Introduce clk_core_has_parent()
  clk: Switch from __clk_determine_rate to clk_core_round_rate_nolock
  clk: Add our request boundaries in clk_core_init_rate_req
  clk: Introduce clk_hw_init_rate_request()
  clk: Move clk_core_init_rate_req() from clk_core_round_rate_nolock() to its caller
  clk: Change clk_core_init_rate_req prototype
  clk: Set req_rate on reparenting
  clk: Take into account uncached clocks in clk_set_rate_range()
  ...

2 years agoMerge tag '6.1-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sun, 16 Oct 2022 18:01:40 +0000 (11:01 -0700)]
Merge tag '6.1-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6

Pull more cifs updates from Steve French:

 - fix a regression in guest mounts to old servers

 - improvements to directory leasing (caching directory entries safely
   beyond the root directory)

 - symlink improvement (reducing roundtrips needed to process symlinks)

 - an lseek fix (to problem where some dir entries could be skipped)

 - improved ioctl for returning more detailed information on directory
   change notifications

 - clarify multichannel interface query warning

 - cleanup fix (for better aligning buffers using ALIGN and round_up)

 - a compounding fix

 - fix some uninitialized variable bugs found by Coverity and the kernel
   test robot

* tag '6.1-rc-smb3-client-fixes-part2' of git://git.samba.org/sfrench/cifs-2.6:
  smb3: improve SMB3 change notification support
  cifs: lease key is uninitialized in two additional functions when smb1
  cifs: lease key is uninitialized in smb1 paths
  smb3: must initialize two ACL struct fields to zero
  cifs: fix double-fault crash during ntlmssp
  cifs: fix static checker warning
  cifs: use ALIGN() and round_up() macros
  cifs: find and use the dentry for cached non-root directories also
  cifs: enable caching of directories for which a lease is held
  cifs: prevent copying past input buffer boundaries
  cifs: fix uninitialised var in smb2_compound_op()
  cifs: improve symlink handling for smb2+
  smb3: clarify multichannel warning
  cifs: fix regression in very old smb1 mounts
  cifs: fix skipping to incorrect offset in emit_cached_dirents

2 years agoRevert "cpumask: fix checking valid cpu range".
Tetsuo Handa [Sat, 15 Oct 2022 15:53:51 +0000 (00:53 +0900)]
Revert "cpumask: fix checking valid cpu range".

This reverts commit 78e5a3399421 ("cpumask: fix checking valid cpu range").

syzbot is hitting WARN_ON_ONCE(cpu >= nr_cpumask_bits) warning at
cpu_max_bits_warn() [1], for commit 78e5a3399421 ("cpumask: fix checking
valid cpu range") is broken.  Obviously that patch hits WARN_ON_ONCE()
when e.g.  reading /proc/cpuinfo because passing "cpu + 1" instead of
"cpu" will trivially hit cpu == nr_cpumask_bits condition.

Although syzbot found this problem in linux-next.git on 2022/09/27 [2],
this problem was not fixed immediately.  As a result, that patch was
sent to linux.git before the patch author recognizes this problem, and
syzbot started failing to test changes in linux.git since 2022/10/10
[3].

Andrew Jones proposed a fix for x86 and riscv architectures [4].  But
[2] and [5] indicate that affected locations are not limited to arch
code.  More delay before we find and fix affected locations, less tested
kernel (and more difficult to bisect and fix) before release.

We should have inspected and fixed basically all cpumask users before
applying that patch.  We should not crash kernels in order to ask
existing cpumask users to update their code, even if limited to
CONFIG_DEBUG_PER_CPU_MAPS=y case.

Link: https://syzkaller.appspot.com/bug?extid=d0fd2bf0dd6da72496dd
Link: https://syzkaller.appspot.com/bug?extid=21da700f3c9f0bc40150
Link: https://syzkaller.appspot.com/bug?extid=51a652e2d24d53e75734
Link: https://lkml.kernel.org/r/20221014155845.1986223-1-ajones@ventanamicro.com
Link: https://syzkaller.appspot.com/bug?extid=4d46c43d81c3bd155060
Reported-by: Andrew Jones <ajones@ventanamicro.com>
Reported-by: syzbot+d0fd2bf0dd6da72496dd@syzkaller.appspotmail.com
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Cc: Yury Norov <yury.norov@gmail.com>
Cc: Borislav Petkov <bp@alien8.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agolib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5
Nathan Chancellor [Fri, 14 Oct 2022 20:42:11 +0000 (13:42 -0700)]
lib/Kconfig.debug: Add check for non-constant .{s,u}leb128 support to DWARF5

When building with a RISC-V kernel with DWARF5 debug info using clang
and the GNU assembler, several instances of the following error appear:

  /tmp/vgettimeofday-48aa35.s:2963: Error: non-constant .uleb128 is not supported

Dumping the .s file reveals these .uleb128 directives come from
.debug_loc and .debug_ranges:

  .Ldebug_loc0:
          .byte   4                               # DW_LLE_offset_pair
          .uleb128 .Lfunc_begin0-.Lfunc_begin0    #   starting offset
          .uleb128 .Ltmp1-.Lfunc_begin0           #   ending offset
          .byte   1                               # Loc expr size
          .byte   90                              # DW_OP_reg10
          .byte   0                               # DW_LLE_end_of_list

  .Ldebug_ranges0:
          .byte   4                               # DW_RLE_offset_pair
          .uleb128 .Ltmp6-.Lfunc_begin0           #   starting offset
          .uleb128 .Ltmp27-.Lfunc_begin0          #   ending offset
          .byte   4                               # DW_RLE_offset_pair
          .uleb128 .Ltmp28-.Lfunc_begin0          #   starting offset
          .uleb128 .Ltmp30-.Lfunc_begin0          #   ending offset
          .byte   0                               # DW_RLE_end_of_list

There is an outstanding binutils issue to support a non-constant operand
to .sleb128 and .uleb128 in GAS for RISC-V but there does not appear to
be any movement on it, due to concerns over how it would work with
linker relaxation.

To avoid these build errors, prevent DWARF5 from being selected when
using clang and an assembler that does not have support for these symbol
deltas, which can be easily checked in Kconfig with as-instr plus the
small test program from the dwz test suite from the binutils issue.

Link: https://sourceware.org/bugzilla/show_bug.cgi?id=27215
Link: https://github.com/ClangBuiltLinux/linux/issues/1719
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agokbuild: fix single directory build
Masahiro Yamada [Fri, 14 Oct 2022 20:18:11 +0000 (05:18 +0900)]
kbuild: fix single directory build

Commit f110e5a250e3 ("kbuild: refactor single builds of *.ko") was wrong.

KBUILD_MODULES _is_ needed for single builds.

Otherwise, "make foo/bar/baz/" does not build module objects at all.

Fixes: f110e5a250e3 ("kbuild: refactor single builds of *.ko")
Reported-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: David Sterba <dsterba@suse.com>
2 years agoMerge tag 'slab-for-6.1-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 16 Oct 2022 00:05:07 +0000 (17:05 -0700)]
Merge tag 'slab-for-6.1-rc1-hotfix' of git://git./linux/kernel/git/vbabka/slab

Pull slab hotfix from Vlastimil Babka:
 "A single fix for the common-kmalloc series, for warnings on mips and
  sparc64 reported by Guenter Roeck"

* tag 'slab-for-6.1-rc1-hotfix' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab:
  mm/slab: use kmalloc_node() for off slab freelist_idx_t array allocation

2 years agoMerge tag 'for-linus' of https://github.com/openrisc/linux
Linus Torvalds [Sat, 15 Oct 2022 23:47:33 +0000 (16:47 -0700)]
Merge tag 'for-linus' of https://github.com/openrisc/linux

Pull OpenRISC updates from Stafford Horne:
 "I have relocated to London so not much work from me while I get
  settled.

  Still, OpenRISC picked up two patches in this window:

   - Fix for kernel page table walking from Jann Horn

   - MAINTAINER entry cleanup from Palmer Dabbelt"

* tag 'for-linus' of https://github.com/openrisc/linux:
  MAINTAINERS: git://github -> https://github.com for openrisc
  openrisc: Fix pagewalk usage in arch_dma_{clear, set}_uncached

2 years agoMerge tag 'pci-v6.1-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci
Linus Torvalds [Sat, 15 Oct 2022 23:36:38 +0000 (16:36 -0700)]
Merge tag 'pci-v6.1-fixes-1' of git://git./linux/kernel/git/helgaas/pci

Pull pci fix from Bjorn Helgaas:
 "Revert the attempt to distribute spare resources to unconfigured
  hotplug bridges at boot time.

  This fixed some dock hot-add scenarios, but Jonathan Cameron reported
  that it broke a topology with a multi-function device where one
  function was a Switch Upstream Port and the other was an Endpoint"

* tag 'pci-v6.1-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  Revert "PCI: Distribute available resources for root buses, too"

2 years agomm/slab: use kmalloc_node() for off slab freelist_idx_t array allocation
Hyeonggon Yoo [Sat, 15 Oct 2022 04:34:29 +0000 (13:34 +0900)]
mm/slab: use kmalloc_node() for off slab freelist_idx_t array allocation

After commit d6a71648dbc0 ("mm/slab: kmalloc: pass requests larger than
order-1 page to page allocator"), SLAB passes large ( > PAGE_SIZE * 2)
requests to buddy like SLUB does.

SLAB has been using kmalloc caches to allocate freelist_idx_t array for
off slab caches. But after the commit, freelist_size can be bigger than
KMALLOC_MAX_CACHE_SIZE.

Instead of using pointer to kmalloc cache, use kmalloc_node() and only
check if the kmalloc cache is off slab during calculate_slab_order().
If freelist_size > KMALLOC_MAX_CACHE_SIZE, no looping condition happens
as it allocates freelist_idx_t array directly from buddy.

Link: https://lore.kernel.org/all/20221014205818.GA1428667@roeck-us.net/
Reported-and-tested-by: Guenter Roeck <linux@roeck-us.net>
Fixes: d6a71648dbc0 ("mm/slab: kmalloc: pass requests larger than order-1 page to page allocator")
Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Signed-off-by: Vlastimil Babka <vbabka@suse.cz>
2 years agoMAINTAINERS: git://github -> https://github.com for openrisc
Palmer Dabbelt [Thu, 13 Oct 2022 21:46:37 +0000 (14:46 -0700)]
MAINTAINERS: git://github -> https://github.com for openrisc

Github deprecated the git:// links about a year ago, so let's move to
the https:// URLs instead.

Reported-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://github.blog/2021-09-01-improving-git-protocol-security-github/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Signed-off-by: Stafford Horne <shorne@gmail.com>
2 years agosmb3: improve SMB3 change notification support
Steve French [Sat, 15 Oct 2022 05:43:22 +0000 (00:43 -0500)]
smb3: improve SMB3 change notification support

Change notification is a commonly supported feature by most servers,
but the current ioctl to request notification when a directory is
changed does not return the information about what changed
(even though it is returned by the server in the SMB3 change
notify response), it simply returns when there is a change.

This ioctl improves upon CIFS_IOC_NOTIFY by returning the notify
information structure which includes the name of the file(s) that
changed and why. See MS-SMB2 2.2.35 for details on the individual
filter flags and the file_notify_information structure returned.

To use this simply pass in the following (with enough space
to fit at least one file_notify_information structure)

struct __attribute__((__packed__)) smb3_notify {
       uint32_t completion_filter;
       bool     watch_tree;
       uint32_t data_len;
       uint8_t  data[];
} __packed;

using CIFS_IOC_NOTIFY_INFO 0xc009cf0b
 or equivalently _IOWR(CIFS_IOCTL_MAGIC, 11, struct smb3_notify_info)

The ioctl will block until the server detects a change to that
directory or its subdirectories (if watch_tree is set).

Acked-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Acked-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agocifs: lease key is uninitialized in two additional functions when smb1
Steve French [Sat, 15 Oct 2022 01:00:32 +0000 (20:00 -0500)]
cifs: lease key is uninitialized in two additional functions when smb1

cifs_open and _cifsFileInfo_put also end up with lease_key uninitialized
in smb1 mounts.  It is cleaner to set lease key to zero in these
places where leases are not supported (smb1 can not return lease keys
so the field was uninitialized).

Addresses-Coverity: 1514207 ("Uninitialized scalar variable")
Addresses-Coverity: 1514331 ("Uninitialized scalar variable")
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agocifs: lease key is uninitialized in smb1 paths
Steve French [Sat, 15 Oct 2022 00:18:32 +0000 (19:18 -0500)]
cifs: lease key is uninitialized in smb1 paths

It is cleaner to set lease key to zero in the places where leases are not
supported (smb1 can not return lease keys so the field was uninitialized).

Addresses-Coverity: 1513994 ("Uninitialized scalar variable")
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agosmb3: must initialize two ACL struct fields to zero
Steve French [Fri, 14 Oct 2022 23:50:20 +0000 (18:50 -0500)]
smb3: must initialize two ACL struct fields to zero

Coverity spotted that we were not initalizing Stbz1 and Stbz2 to
zero in create_sd_buf.

Addresses-Coverity: 1513848 ("Uninitialized scalar variable")
Cc: <stable@vger.kernel.org>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agocifs: fix double-fault crash during ntlmssp
Paulo Alcantara [Fri, 14 Oct 2022 20:14:54 +0000 (17:14 -0300)]
cifs: fix double-fault crash during ntlmssp

The crash occurred because we were calling memzero_explicit() on an
already freed sess_data::iov[1] (ntlmsspblob) in sess_free_buffer().

Fix this by not calling memzero_explicit() on sess_data::iov[1] as
it's already by handled by callers.

Fixes: a4e430c8c8ba ("cifs: replace kfree() with kfree_sensitive() for sensitive data")
Reviewed-by: Enzo Matsumiya <ematsumiya@suse.de>
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agotools arch x86: Sync the msr-index.h copy with the kernel sources
Arnaldo Carvalho de Melo [Fri, 7 Aug 2020 11:45:47 +0000 (08:45 -0300)]
tools arch x86: Sync the msr-index.h copy with the kernel sources

To pick up the changes in:

  b8d1d163604bd1e6 ("x86/apic: Don't disable x2APIC if locked")
  ca5b7c0d9621702e ("perf/x86/amd/lbr: Add LbrExtV2 branch record support")

Addressing these tools/perf build warnings:

    diff -u tools/arch/x86/include/asm/msr-index.h arch/x86/include/asm/msr-index.h
    Warning: Kernel ABI header at 'tools/arch/x86/include/asm/msr-index.h' differs from latest version at 'arch/x86/include/asm/msr-index.h'

That makes the beautification scripts to pick some new entries:

  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > before
  $ cp arch/x86/include/asm/msr-index.h tools/arch/x86/include/asm/msr-index.h
  $ tools/perf/trace/beauty/tracepoints/x86_msr.sh > after
  $ diff -u before after
  --- before 2022-10-14 18:06:34.294561729 -0300
  +++ after 2022-10-14 18:06:41.285744044 -0300
  @@ -264,6 +264,7 @@
    [0xc0000102 - x86_64_specific_MSRs_offset] = "KERNEL_GS_BASE",
    [0xc0000103 - x86_64_specific_MSRs_offset] = "TSC_AUX",
    [0xc0000104 - x86_64_specific_MSRs_offset] = "AMD64_TSC_RATIO",
  + [0xc000010e - x86_64_specific_MSRs_offset] = "AMD64_LBR_SELECT",
    [0xc000010f - x86_64_specific_MSRs_offset] = "AMD_DBG_EXTN_CFG",
    [0xc0000300 - x86_64_specific_MSRs_offset] = "AMD64_PERF_CNTR_GLOBAL_STATUS",
    [0xc0000301 - x86_64_specific_MSRs_offset] = "AMD64_PERF_CNTR_GLOBAL_CTL",
  $

Now one can trace systemwide asking to see backtraces to where that MSR
is being read/written, see this example with a previous update:

  # perf trace -e msr:*_msr/max-stack=32/ --filter="msr>=IA32_U_CET && msr<=IA32_INT_SSP_TAB"
  ^C#

If we use -v (verbose mode) we can see what it does behind the scenes:

  # perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr>=IA32_U_CET && msr<=IA32_INT_SSP_TAB"
  Using CPUID AuthenticAMD-25-21-0
  0x6a0
  0x6a8
  New filter for msr:read_msr: (msr>=0x6a0 && msr<=0x6a8) && (common_pid != 597499 && common_pid != 3313)
  0x6a0
  0x6a8
  New filter for msr:write_msr: (msr>=0x6a0 && msr<=0x6a8) && (common_pid != 597499 && common_pid != 3313)
  mmap size 528384B
  ^C#

Example with a frequent msr:

  # perf trace -v -e msr:*_msr/max-stack=32/ --filter="msr==IA32_SPEC_CTRL" --max-events 2
  Using CPUID AuthenticAMD-25-21-0
  0x48
  New filter for msr:read_msr: (msr==0x48) && (common_pid != 2612129 && common_pid != 3841)
  0x48
  New filter for msr:write_msr: (msr==0x48) && (common_pid != 2612129 && common_pid != 3841)
  mmap size 528384B
  Looking at the vmlinux_path (8 entries long)
  symsrc__init: build id mismatch for vmlinux.
  Using /proc/kcore for kernel data
  Using /proc/kallsyms for symbols
     0.000 Timer/2525383 msr:write_msr(msr: IA32_SPEC_CTRL, val: 6)
                                       do_trace_write_msr ([kernel.kallsyms])
                                       do_trace_write_msr ([kernel.kallsyms])
                                       __switch_to_xtra ([kernel.kallsyms])
                                       __switch_to ([kernel.kallsyms])
                                       __schedule ([kernel.kallsyms])
                                       schedule ([kernel.kallsyms])
                                       futex_wait_queue_me ([kernel.kallsyms])
                                       futex_wait ([kernel.kallsyms])
                                       do_futex ([kernel.kallsyms])
                                       __x64_sys_futex ([kernel.kallsyms])
                                       do_syscall_64 ([kernel.kallsyms])
                                       entry_SYSCALL_64_after_hwframe ([kernel.kallsyms])
                                       __futex_abstimed_wait_common64 (/usr/lib64/libpthread-2.33.so)
     0.030 :0/0 msr:write_msr(msr: IA32_SPEC_CTRL, val: 2)
                                       do_trace_write_msr ([kernel.kallsyms])
                                       do_trace_write_msr ([kernel.kallsyms])
                                       __switch_to_xtra ([kernel.kallsyms])
                                       __switch_to ([kernel.kallsyms])
                                       __schedule ([kernel.kallsyms])
                                       schedule_idle ([kernel.kallsyms])
                                       do_idle ([kernel.kallsyms])
                                       cpu_startup_entry ([kernel.kallsyms])
                                       secondary_startup_64_no_verify ([kernel.kallsyms])
  #

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Daniel Sneddon <daniel.sneddon@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sandipan Das <sandipan.das@amd.com>
Link: https://lore.kernel.org/lkml/Y0nQkz2TUJxwfXJd@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf auxtrace arm64: Add support for parsing HiSilicon PCIe Trace packet
Qi Liu [Tue, 27 Sep 2022 08:14:00 +0000 (16:14 +0800)]
perf auxtrace arm64: Add support for parsing HiSilicon PCIe Trace packet

Add support for using 'perf report --dump-raw-trace' to parse PTT packet.

Example usage:

Output will contain raw PTT data and its textual representation, such
as (8DW format):

0 0 0x5810 [0x30]: PERF_RECORD_AUXTRACE size: 0x400000  offset: 0
ref: 0xa5d50c725  idx: 0  tid: -1  cpu: 0
.
. ... HISI PTT data: size 4194304 bytes
.  00000000: 00 00 00 00                                 Prefix
.  00000004: 08 20 00 60                                 Header DW0
.  00000008: ff 02 00 01                                 Header DW1
.  0000000c: 20 08 00 00                                 Header DW2
.  00000010: 10 e7 44 ab                                 Header DW3
.  00000014: 2a a8 1e 01                                 Time
.  00000020: 00 00 00 00                                 Prefix
.  00000024: 01 00 00 60                                 Header DW0
.  00000028: 0f 1e 00 01                                 Header DW1
.  0000002c: 04 00 00 00                                 Header DW2
.  00000030: 40 00 81 02                                 Header DW3
.  00000034: ee 02 00 00                                 Time
....

This patch only add basic parsing support according to the definition of
the PTT packet described in Documentation/trace/hisi-ptt.rst. And the
fields of each packet can be further decoded following the PCIe Spec's
definition of TLP packet.

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bjorn Helgaas <helgaas@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Liu <liuqi6124@gmail.com>
Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Zeng Prime <prime.zeng@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-pci@vger.kernel.org
Cc: linuxarm@huawei.com
Link: https://lore.kernel.org/r/20220927081400.14364-4-yangyicong@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf auxtrace arm64: Add support for HiSilicon PCIe Tune and Trace device driver
Qi Liu [Tue, 27 Sep 2022 08:13:59 +0000 (16:13 +0800)]
perf auxtrace arm64: Add support for HiSilicon PCIe Tune and Trace device driver

HiSilicon PCIe tune and trace device (PTT) could dynamically tune the
PCIe link's events, and trace the TLP headers).

This patch add support for PTT device in perf tool, so users could use
'perf record' to get TLP headers trace data.

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Acked-by: John Garry <john.garry@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bjorn Helgaas <helgaas@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Liu <liuqi6124@gmail.com>
Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Zeng Prime <prime.zeng@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-pci@vger.kernel.org
Cc: linuxarm@huawei.com
Link: https://lore.kernel.org/r/20220927081400.14364-3-yangyicong@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf auxtrace arm: Refactor event list iteration in auxtrace_record__init()
Qi Liu [Tue, 27 Sep 2022 08:13:58 +0000 (16:13 +0800)]
perf auxtrace arm: Refactor event list iteration in auxtrace_record__init()

Add find_pmu_for_event() and use to simplify logic in
auxtrace_record_init(). find_pmu_for_event() will be reused in
subsequent patches.

Reviewed-by: John Garry <john.garry@huawei.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Bjorn Helgaas <helgaas@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Qi Liu <liuqi6124@gmail.com>
Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
Cc: Shaokun Zhang <zhangshaokun@hisilicon.com>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Zeng Prime <prime.zeng@huawei.com>
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-pci@vger.kernel.org
Cc: linuxarm@huawei.com
Link: https://lore.kernel.org/r/20220927081400.14364-2-yangyicong@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf tests stat+json_output: Include sanity check for topology
Athira Rajeev [Thu, 6 Oct 2022 15:51:49 +0000 (21:21 +0530)]
perf tests stat+json_output: Include sanity check for topology

Testcase stat+json_output.sh fails in powerpc:

86: perf stat JSON output linter : FAILED!

The testcase "stat+json_output.sh" verifies perf stat JSON output. The
test covers aggregation modes like per-socket, per-core, per-die, -A
(no_aggr mode) along with few other tests. It counts expected fields for
various commands. For example say -A (i.e, AGGR_NONE mode), expects 7
fields in the output having "CPU" as first field. Same way, for
per-socket, it expects the first field in result to point to socket id.
The testcases compares the result with expected count.

The values for socket, die, core and cpu are fetched from topology
directory:

  /sys/devices/system/cpu/cpu*/topology.

For example, socket value is fetched from "physical_package_id" file of
topology directory.  (cpu__get_topology_int() in util/cpumap.c)

If a platform fails to fetch the topology information, values will be
set to -1. For example, incase of pSeries platform of powerpc, value for
"physical_package_id" is restricted and not exposed. So, -1 will be
assigned.

Perf code has a checks for valid cpu id in "aggr_printout"
(stat-display.c), which displays the fields. So, in cases where topology
values not exposed, first field of the output displaying will be empty.
This cause the testcase to fail, as it counts  number of fields in the
output.

Incase of -A (AGGR_NONE mode,), testcase expects 7 fields in the output,
becos of -1 value obtained from topology files for some, only 6 fields
are printed. Hence a testcase failure reported due to mismatch in number
of fields in the output.

Patch here adds a sanity check in the testcase for topology.  Check will
help to skip the test if -1 value found.

Fixes: 0c343af2a2f82844 ("perf test: JSON format checking")
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Suggested-by: Ian Rogers <irogers@google.com>
Suggested-by: James Clark <james.clark@arm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Claire Jensen <cjense@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Link: https://lore.kernel.org/r/20221006155149.67205-2-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf tests stat+csv_output: Include sanity check for topology
Athira Rajeev [Thu, 6 Oct 2022 15:51:48 +0000 (21:21 +0530)]
perf tests stat+csv_output: Include sanity check for topology

Testcase stat+csv_output.sh fails in powerpc:

84: perf stat CSV output linter: FAILED!

The testcase "stat+csv_output.sh" verifies perf stat CSV output. The
test covers aggregation modes like per-socket, per-core, per-die, -A
(no_aggr mode) along with few other tests. It counts expected fields for
various commands. For example say -A (i.e, AGGR_NONE mode), expects 7
fields in the output having "CPU" as first field. Same way, for
per-socket, it expects the first field in result to point to socket id.
The testcases compares the result with expected count.

The values for socket, die, core and cpu are fetched from topology
directory:

  /sys/devices/system/cpu/cpu*/topology.

For example, socket value is fetched from "physical_package_id" file of
topology directory.  (cpu__get_topology_int() in util/cpumap.c)

If a platform fails to fetch the topology information, values will be
set to -1. For example, incase of pSeries platform of powerpc, value for
"physical_package_id" is restricted and not exposed. So, -1 will be
assigned.

Perf code has a checks for valid cpu id in "aggr_printout"
(stat-display.c), which displays the fields. So, in cases where topology
values not exposed, first field of the output displaying will be empty.
This cause the testcase to fail, as it counts  number of fields in the
output.

Incase of -A (AGGR_NONE mode,), testcase expects 7 fields in the output,
becos of -1 value obtained from topology files for some, only 6 fields
are printed. Hence a testcase failure reported due to mismatch in number
of fields in the output.

Patch here adds a sanity check in the testcase for topology.  Check will
help to skip the test if -1 value found.

Fixes: 7473ee56dbc91c98 ("perf test: Add checking for perf stat CSV output.")
Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Suggested-by: Ian Rogers <irogers@google.com>
Suggested-by: James Clark <james.clark@arm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Claire Jensen <cjense@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Link: https://lore.kernel.org/r/20221006155149.67205-1-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix system_wide dummy event for hybrid
Adrian Hunter [Wed, 12 Oct 2022 08:22:59 +0000 (11:22 +0300)]
perf intel-pt: Fix system_wide dummy event for hybrid

User space tasks can migrate between CPUs, so when tracing selected CPUs,
system-wide sideband is still needed, however evlist->core.has_user_cpus
is not set in the hybrid case, so check the target cpu_list instead.

Fixes: 7d189cadbeebc778 ("perf intel-pt: Track sideband system-wide when needed")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221012082259.22394-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf intel-pt: Fix segfault in intel_pt_print_info() with uClibc
Adrian Hunter [Wed, 12 Oct 2022 08:22:58 +0000 (11:22 +0300)]
perf intel-pt: Fix segfault in intel_pt_print_info() with uClibc

uClibc segfaulted because NULL was passed as the format to fprintf().

That happened because one of the format strings was missing and
intel_pt_print_info() didn't check that before calling fprintf().

Add the missing format string, and check format is not NULL before calling
fprintf().

Fixes: 11fa7cb86b56d361 ("perf tools: Pass Intel PT information for decoding MTC and CYC")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20221012082259.22394-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: Fix attr tests for PERF_FORMAT_LOST
James Clark [Wed, 12 Oct 2022 09:46:32 +0000 (10:46 +0100)]
perf test: Fix attr tests for PERF_FORMAT_LOST

Since PERF_FORMAT_LOST was added, the default read format has that bit
set, so add it to the tests. Keep the old value as well so that the test
still passes on older kernels.

This fixes the following failure:

  expected read_format=0|4, got 20
  FAILED './tests/attr/test-record-C0' - match failure

Fixes: 85b425f31c8866e0 ("perf record: Set PERF_FORMAT_LOST by default")
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221012094633.21669-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: test_intel_pt.sh: Add 9 tests
Ammy Yi [Fri, 14 Oct 2022 17:09:05 +0000 (20:09 +0300)]
perf test: test_intel_pt.sh: Add 9 tests

Add tests:
Test with MTC and TSC disabled
Test with branches disabled
Test with/without CYC
Test recording with sample mode
Test with kernel trace
Test virtual LBR
Test power events
Test with TNT packets disabled
Test with event_trace

These tests mostly check that perf record works with the corresponding
Intel PT config terms, sometimes also checking that certain packets do or
do not appear in the resulting trace as appropriate.

The "Test virtual LBR" is slightly trickier, using a Python script to
check that branch stacks are actually synthesized.

Signed-off-by: Ammy Yi <ammy.yi@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-8-adrian.hunter@intel.com
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf inject: Fix GEN_ELF_TEXT_OFFSET for jit
Adrian Hunter [Fri, 14 Oct 2022 17:09:04 +0000 (20:09 +0300)]
perf inject: Fix GEN_ELF_TEXT_OFFSET for jit

When a program header was added, it moved the text section but
GEN_ELF_TEXT_OFFSET was not updated.

Fix by adding the program header size and aligning.

Fixes: babd04386b1df8c3 ("perf jit: Include program header in ELF files")
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Lieven Hey <lieven.hey@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: test_intel_pt.sh: Add jitdump test
Adrian Hunter [Fri, 14 Oct 2022 17:09:03 +0000 (20:09 +0300)]
perf test: test_intel_pt.sh: Add jitdump test

Add a test for decoding self-modifying code using a jitdump file.

The test creates a workload that uses self-modifying code and generates its
own jitdump file.  The result is processed with perf inject --jit and
checked for decoding errors.

Note the test will fail without patch "perf inject: Fix GEN_ELF_TEXT_OFFSET
for jit" applied.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: test_intel_pt.sh: Tidy some alignment
Adrian Hunter [Fri, 14 Oct 2022 17:09:02 +0000 (20:09 +0300)]
perf test: test_intel_pt.sh: Tidy some alignment

Tidy alignment of test function lines to make them more readable.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: test_intel_pt.sh: Print a message when skipping kernel tracing
Adrian Hunter [Fri, 14 Oct 2022 17:09:01 +0000 (20:09 +0300)]
perf test: test_intel_pt.sh: Print a message when skipping kernel tracing

Messages display with the perf test -v option. Add a message to show when
skipping a test because the user cannot do kernel tracing.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: test_intel_pt.sh: Tidy some perf record options
Adrian Hunter [Fri, 14 Oct 2022 17:09:00 +0000 (20:09 +0300)]
perf test: test_intel_pt.sh: Tidy some perf record options

When not decoding, the options "-B -N --no-bpf-event" speed up perf record.
Make a common function for them.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf test: test_intel_pt.sh: Fix return checking again
Adrian Hunter [Fri, 14 Oct 2022 17:08:59 +0000 (20:08 +0300)]
perf test: test_intel_pt.sh: Fix return checking again

count_result() does not always reset ret=0 which means the value can spill
into the next test result.

Fix by explicitly setting it to zero between tests.

Committer testing:

  # perf test "Miscellaneous Intel PT testing"
  110: Miscellaneous Intel PT testing               : Ok
  #

Tested as well with:

  # perf test -v "Miscellaneous Intel PT testing"

Fixes: fd9b45e39cfaf885 ("perf test: test_intel_pt.sh: Fix return checking")
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20221014170905.64069-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoMerge tag 'libnvdimm-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm...
Linus Torvalds [Sat, 15 Oct 2022 01:41:41 +0000 (18:41 -0700)]
Merge tag 'libnvdimm-for-6.1' of git://git./linux/kernel/git/nvdimm/nvdimm

Pull nvdimm updates from Dan Williams:
 "Some small cleanups and fixes in and around the nvdimm subsystem. The
  most significant change is a regression fix for nvdimm namespace
  (volume) creation when the namespace size is smaller than 2MB/

  Summary:

   - Fix nvdimm namespace creation on platforms that do not publish
     associated 'DIMM' metadata for a persistent memory region.

   - Miscellaneous fixes and cleanups"

* tag 'libnvdimm-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
  ACPI: HMAT: Release platform device in case of platform_device_add_data() fails
  dax: Remove usage of the deprecated ida_simple_xxx API
  libnvdimm/region: Allow setting align attribute on regions without mappings
  nvdimm/namespace: Fix comment typo
  nvdimm: make __nvdimm_security_overwrite_query static
  nvdimm/region: Fix kernel-doc
  nvdimm/namespace: drop unneeded temporary variable in size_store()
  nvdimm/namespace: return uuid_null only once in nd_dev_to_uuid()

2 years agoMerge tag 'rtc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Linus Torvalds [Sat, 15 Oct 2022 01:36:42 +0000 (18:36 -0700)]
Merge tag 'rtc-6.1' of git://git./linux/kernel/git/abelloni/linux

Pull RTC updates from Alexandre Belloni:
 "A great rework of the isl12022 driver makes up the bulk of the
  changes. There is also an important fix for CMOS and then the usual
  small fixes:

   - switch to devm_clk_get_enabled() where relevant

   - cmos: event handler registration fix

   - isl12022: code improvements"

* tag 'rtc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux:
  rtc: rv3028: Fix codestyle errors
  rtc: cmos: Fix event handler registration ordering issue
  rtc: k3: Use devm_clk_get_enabled() helper
  rtc: jz4740: Use devm_clk_get_enabled() helper
  rtc: mpfs: Use devm_clk_get_enabled() helper
  rtc: ds1685: Fix spelling of function name in comment block
  rtc: isl12022: switch to using regmap API
  rtc: isl12022: drop redundant write to HR register
  rtc: isl12022: use dev_set_drvdata() instead of i2c_set_clientdata()
  rtc: isl12022: use %ptR
  rtc: isl12022: simplify some expressions
  rtc: isl12022: drop a dev_info()
  rtc: isl12022: specify range_min and range_max
  rtc: isl12022: stop using deprecated devm_rtc_device_register()
  rtc: stmp3xxx: Add failure handling for stmp3xxx_wdt_register()
  rtc: mxc: Use devm_clk_get_enabled() helper
  rtc: gamecube: Always reset HW_SRNPROT after read
  rtc: k3: detect SoC to determine erratum fix
  rtc: k3: wait until the unlock field is not zero
  rtc: mpfs: Remove printing of stray CR

2 years agoMerge tag 'i3c/for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux
Linus Torvalds [Sat, 15 Oct 2022 01:31:28 +0000 (18:31 -0700)]
Merge tag 'i3c/for-6.1' of git://git./linux/kernel/git/i3c/linux

Pull i3c updates from Alexandre Belloni:
 "Not much this cycle, only two fixes for a rare event"

   - fix device reattach issues"

* tag 'i3c/for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux:
  i3c: master: Remove the wrong place of reattach.
  i3c: master: Free the old_dyn_addr when reattach.

2 years agoMerge tag 'for-linus-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw...
Linus Torvalds [Sat, 15 Oct 2022 01:23:23 +0000 (18:23 -0700)]
Merge tag 'for-linus-6.1-rc1' of git://git./linux/kernel/git/rw/ubifs

Pull UBI and UBIFS updates from Richard Weinberger:
 "UBI:
   - Use bitmap API to allocate bitmaps
   - New attach mode, disable_fm, to attach without fastmap
   - Fixes for various typos in comments

  UBIFS:
   - Fix for a deadlock when setting xattrs for encrypted file
   - Fix for an assertion failures when truncating encrypted files
   - Fixes for various typos in comments"

* tag 'for-linus-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  ubi: fastmap: Add fastmap control support for 'UBI_IOCATT' ioctl
  ubi: fastmap: Use the bitmap API to allocate bitmaps
  ubifs: Fix AA deadlock when setting xattr for encrypted file
  ubifs: Fix UBIFS ro fail due to truncate in the encrypted directory
  mtd: ubi: drop unexpected word 'a' in comments
  ubi: block: Fix typos in comments
  ubi: fastmap: Fix typo in comments
  ubi: Fix repeated words in comments
  ubi: ubi-media.h: Fix comment typo
  ubi: block: Remove in vain semicolon
  ubifs: Fix ubifs_check_dir_empty() kernel-doc comment

2 years agoMerge tag 'for-linus-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml...
Linus Torvalds [Sat, 15 Oct 2022 01:14:48 +0000 (18:14 -0700)]
Merge tag 'for-linus-6.1-rc1' of git://git./linux/kernel/git/uml/linux

Pull UML updates from Richard Weinberger:

 - Move to strscpy()

 - Improve panic notifiers

 - Fix NR_CPUS usage

 - Fixes for various comments

 - Fixes for virtio driver

* tag 'for-linus-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux:
  uml: Remove the initialization of statics to 0
  um: Do not initialise statics to 0.
  um: Fix comment typo
  um: Improve panic notifiers consistency and ordering
  um: remove unused reactivate_chan() declaration
  um: mmaper: add __exit annotations to module exit funcs
  um: virt-pci: add __init/__exit annotations to module init/exit funcs
  hostfs: move from strlcpy with unused retval to strscpy
  um: move from strlcpy with unused retval to strscpy
  um: increase default virtual physical memory to 64 MiB
  UM: cpuinfo: Fix a warning for CONFIG_CPUMASK_OFFSTACK
  um: read multiple msg from virtio slave request fd

2 years agoMerge tag 'asm-generic-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 14 Oct 2022 20:47:42 +0000 (13:47 -0700)]
Merge tag 'asm-generic-fixes-6.1-1' of git://git./linux/kernel/git/arnd/asm-generic

Pull asm-generic fix from Arnd Bergmann:
 "A last-minute arch/alpha regression fix: the previous asm-generic
  branch contained a new regression from a typo"

* tag 'asm-generic-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  alpha: fix marvel_ioread8 build regression

2 years agoMerge tag 'arm-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Linus Torvalds [Fri, 14 Oct 2022 20:44:53 +0000 (13:44 -0700)]
Merge tag 'arm-fixes-6.1-1' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "These are three fixes for build warnings that came in during the merge
  window"

* tag 'arm-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  ARM: mmp: Make some symbols static
  ARM: spear6xx: Staticize few definitions
  clk: spear: Move prototype to accessible header

2 years agoMerge branch 'clk-rate-range' into clk-next
Stephen Boyd [Fri, 14 Oct 2022 20:44:44 +0000 (13:44 -0700)]
Merge branch 'clk-rate-range' into clk-next

 - Various clk rate range fixes
 - Drop clk rate range constraints on clk_put() (redux)

* clk-rate-range: (28 commits)
  clk: mediatek: clk-mux: Add .determine_rate() callback
  clk: tests: Add tests for notifiers
  clk: Update req_rate on __clk_recalc_rates()
  clk: tests: Add missing test case for ranges
  clk: qcom: clk-rcg2: Take clock boundaries into consideration for gfx3d
  clk: Introduce the clk_hw_get_rate_range function
  clk: Zero the clk_rate_request structure
  clk: Stop forwarding clk_rate_requests to the parent
  clk: Constify clk_has_parent()
  clk: Introduce clk_core_has_parent()
  clk: Switch from __clk_determine_rate to clk_core_round_rate_nolock
  clk: Add our request boundaries in clk_core_init_rate_req
  clk: Introduce clk_hw_init_rate_request()
  clk: Move clk_core_init_rate_req() from clk_core_round_rate_nolock() to its caller
  clk: Change clk_core_init_rate_req prototype
  clk: Set req_rate on reparenting
  clk: Take into account uncached clocks in clk_set_rate_range()
  clk: tests: Add some tests for orphan with multiple parents
  clk: tests: Add tests for mux with multiple parents
  clk: tests: Add tests for single parent mux
  ...

2 years agoclk: tegra: Fix Tegra PWM parent clock
Jon Hunter [Mon, 10 Oct 2022 10:00:46 +0000 (11:00 +0100)]
clk: tegra: Fix Tegra PWM parent clock

Commit 8c193f4714df ("pwm: tegra: Optimize period calculation") updated
the period calculation in the Tegra PWM driver and now returns an error
if the period requested is less than minimum period supported. This is
breaking PWM support on various Tegra platforms. For example, on the
Tegra210 Jetson Nano platform this is breaking the PWM fan support and
probing the PWM fan driver now fails ...

 pwm-fan pwm-fan: Failed to configure PWM: -22
 pwm-fan: probe of pwm-fan failed with error -22

The problem is that the default parent clock for the PWM on Tegra210 is
a 32kHz clock and is unable to support the requested PWM period.

Fix PWM support on Tegra20, Tegra30, Tegra114, Tegra124 and Tegra210 by
updating the parent clock for the PWM to be the PLL_P.

Fixes: 8c193f4714df ("pwm: tegra: Optimize period calculation")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Robert Eckelmann <longnoserob@gmail.com> # TF101 T20
Tested-by: Antoni Aloy Torrens <aaloytorrens@gmail.com> # TF101 T20
Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # TF201 T30
Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # TF700T T3
Link: https://lore.kernel.org/r/20221010100046.6477-1-jonathanh@nvidia.com
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2 years agoclk: at91: fix the build with binutils 2.27
Kefeng Wang [Wed, 12 Oct 2022 03:06:35 +0000 (11:06 +0800)]
clk: at91: fix the build with binutils 2.27

There is an issue when build with older versions of binutils 2.27.0,

arch/arm/mach-at91/pm_suspend.S: Assembler messages:
arch/arm/mach-at91/pm_suspend.S:1086: Error: garbage following instruction -- `ldr tmp1,=0x00020010UL'

Use UL() macro to fix the issue in assembly file.

Fixes: 4fd36e458392 ("ARM: at91: pm: add plla disable/enable support for sam9x60")
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Link: https://lore.kernel.org/r/20221012030635.13140-1-wangkefeng.wang@huawei.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2 years agoclk: qcom: gcc-msm8660: Drop hardcoded fixed board clocks
Linus Walleij [Thu, 13 Oct 2022 14:07:45 +0000 (16:07 +0200)]
clk: qcom: gcc-msm8660: Drop hardcoded fixed board clocks

These two clocks are now registered in the device tree as fixed clocks,
causing a regression in the driver as the clock already exists with
e.g. the name "pxo_board" as the MSM8660 GCC driver probes.

Fix this by just not hard-coding this anymore and everything works
like a charm.

Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: baecbda52933 ("ARM: dts: qcom: msm8660: fix node names for fixed clocks")
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20221013140745.7801-1-linus.walleij@linaro.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2 years agoclk: mediatek: clk-mux: Add .determine_rate() callback
AngeloGioacchino Del Regno [Tue, 11 Oct 2022 13:55:48 +0000 (15:55 +0200)]
clk: mediatek: clk-mux: Add .determine_rate() callback

Since commit 262ca38f4b6e ("clk: Stop forwarding clk_rate_requests
to the parent"), the clk_rate_request is .. as the title says, not
forwarded anymore to the parent: this produces an issue with the
MediaTek clock MUX driver during GPU DVFS on MT8195, but not on
MT8192 or others.

This is because, differently from others, like MT8192 where all of
the clocks in the MFG parents tree are of mtk_mux type, but in the
parent tree of MT8195's MFG clock, we have one mtk_mux clock and
one (clk framework generic) mux clock, like so:

names: mfg_bg3d -> mfg_ck_fast_ref -> top_mfg_core_tmp (or) mfgpll
types: mtk_gate ->      mux        ->     mtk_mux      (or) mtk_pll

To solve this issue and also keep the GPU DVFS clocks code working
as expected, wire up a .determine_rate() callback for the mtk_mux
ops; for that, the standard clk_mux_determine_rate_flags() was used
as it was possible to.

This commit was successfully tested on MT6795 Xperia M5, MT8173 Elm,
MT8192 Spherion and MT8195 Tomato; no regressions were seen.

For the sake of some more documentation about this issue here's the
trace of it:

[   12.211587] ------------[ cut here ]------------
[   12.211589] WARNING: CPU: 6 PID: 78 at drivers/clk/clk.c:1462 clk_core_init_rate_req+0x84/0x90
[   12.211593] Modules linked in: stp crct10dif_ce mtk_adsp_common llc rfkill snd_sof_xtensa_dsp
               panfrost(+) sbs_battery cros_ec_lid_angle cros_ec_sensors snd_sof_of
               cros_ec_sensors_core hid_multitouch cros_usbpd_logger snd_sof gpu_sched
               snd_sof_utils fuse ipv6
[   12.211614] CPU: 6 PID: 78 Comm: kworker/u16:2 Tainted: G        W          6.0.0-next-20221011+ #58
[   12.211616] Hardware name: Acer Tomato (rev2) board (DT)
[   12.211617] Workqueue: devfreq_wq devfreq_monitor
[   12.211620] pstate: 40400009 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[   12.211622] pc : clk_core_init_rate_req+0x84/0x90
[   12.211625] lr : clk_core_forward_rate_req+0xa4/0xe4
[   12.211627] sp : ffff80000893b8e0
[   12.211628] x29: ffff80000893b8e0 x28: ffffdddf92f9b000 x27: ffff46a2c0e8bc05
[   12.211632] x26: ffff46a2c1041200 x25: 0000000000000000 x24: 00000000173eed80
[   12.211636] x23: ffff80000893b9c0 x22: ffff80000893b940 x21: 0000000000000000
[   12.211641] x20: ffff46a2c1039f00 x19: ffff46a2c1039f00 x18: 0000000000000000
[   12.211645] x17: 0000000000000038 x16: 000000000000d904 x15: 0000000000000003
[   12.211649] x14: ffffdddf9357ce48 x13: ffffdddf935e71c8 x12: 000000000004803c
[   12.211653] x11: 00000000a867d7ad x10: 00000000a867d7ad x9 : ffffdddf90c28df4
[   12.211657] x8 : ffffdddf9357a980 x7 : 0000000000000000 x6 : 0000000000000004
[   12.211661] x5 : ffffffffffffffc8 x4 : 00000000173eed80 x3 : ffff80000893b940
[   12.211665] x2 : 00000000173eed80 x1 : ffff80000893b940 x0 : 0000000000000000
[   12.211669] Call trace:
[   12.211670]  clk_core_init_rate_req+0x84/0x90
[   12.211673]  clk_core_round_rate_nolock+0xe8/0x10c
[   12.211675]  clk_mux_determine_rate_flags+0x174/0x1f0
[   12.211677]  clk_mux_determine_rate+0x1c/0x30
[   12.211680]  clk_core_determine_round_nolock+0x74/0x130
[   12.211682]  clk_core_round_rate_nolock+0x58/0x10c
[   12.211684]  clk_core_round_rate_nolock+0xf4/0x10c
[   12.211686]  clk_core_set_rate_nolock+0x194/0x2ac
[   12.211688]  clk_set_rate+0x40/0x94
[   12.211691]  _opp_config_clk_single+0x38/0xa0
[   12.211693]  _set_opp+0x1b0/0x500
[   12.211695]  dev_pm_opp_set_rate+0x120/0x290
[   12.211697]  panfrost_devfreq_target+0x3c/0x50 [panfrost]
[   12.211705]  devfreq_set_target+0x8c/0x2d0
[   12.211707]  devfreq_update_target+0xcc/0xf4
[   12.211708]  devfreq_monitor+0x40/0x1d0
[   12.211710]  process_one_work+0x294/0x664
[   12.211712]  worker_thread+0x7c/0x45c
[   12.211713]  kthread+0x104/0x110
[   12.211716]  ret_from_fork+0x10/0x20
[   12.211718] irq event stamp: 7102
[   12.211719] hardirqs last  enabled at (7101): [<ffffdddf904ea5a0>] finish_task_switch.isra.0+0xec/0x2f0
[   12.211723] hardirqs last disabled at (7102): [<ffffdddf91794b74>] el1_dbg+0x24/0x90
[   12.211726] softirqs last  enabled at (6716): [<ffffdddf90410be4>] __do_softirq+0x414/0x588
[   12.211728] softirqs last disabled at (6507): [<ffffdddf904171d8>] ____do_softirq+0x18/0x24
[   12.211730] ---[ end trace 0000000000000000 ]---

Fixes: 262ca38f4b6e ("clk: Stop forwarding clk_rate_requests to the parent")
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221011135548.318323-1-angelogioacchino.delregno@collabora.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2 years agokbuild: add -fno-discard-value-names to cmd_cc_ll_c
Nick Desaulniers [Fri, 14 Oct 2022 16:53:02 +0000 (09:53 -0700)]
kbuild: add -fno-discard-value-names to cmd_cc_ll_c

When debugging LLVM IR, it can be handy for clang to not discard value
names used for local variables and parameters. Compare the generated IR.

-fdiscard-value-names:
  define i32 @core_sys_select(i32 %0, ptr %1, ptr %2, ptr %3, ptr %4) {
    %6 = alloca i64
    %7 = alloca %struct.poll_wqueues
    %8 = alloca [64 x i32]

-fno-discard-value-names:
  define i32 @core_sys_select(i32 %n, ptr %inp, ptr %outp, ptr %exp,
                              ptr %end_time) {
    %expire.i = alloca i64
    %table.i = alloca %struct.poll_wqueues
    %stack_fds = alloca [64 x i32]

The rule for generating human readable LLVM IR (.ll) is only useful as a
debugging feature:

$ make LLVM=1 fs/select.ll

As Fangrui notes:
  A LLVM_ENABLE_ASSERTIONS=off build of Clang defaults to
  -fdiscard-value-names.

  A LLVM_ENABLE_ASSERTIONS=on build of Clang defaults to
  -fno-discard-value-names.

Explicitly enable -fno-discard-value-names so that the IR always contains
value names regardless of whether assertions were enabled or not.
Assertions generally are not enabled in releases of clang packaged by
distributions.

Link: https://github.com/ClangBuiltLinux/linux/issues/1467
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Fangrui Song <maskray@google.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agoMerge tag 'sound-fix-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 14 Oct 2022 20:22:14 +0000 (13:22 -0700)]
Merge tag 'sound-fix-6.1-rc1' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are a few remaining patches for 6.1-rc1.

  The major changes are the hibernation fixes for HD-audio CS35L41 codec
  and the USB-audio small fixes against the last change. In addition, a
  couple of HD-audio regression fixes and a couple of potential
  mutex-deadlock fixes with OSS emulation in ALSA core side are seen"

* tag 'sound-fix-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda: cs35l41: Support System Suspend
  ALSA: hda: cs35l41: Remove suspend/resume hda hooks
  ALSA: hda/cs_dsp_ctl: Fix mutex inversion when creating controls
  ALSA: hda: hda_cs_dsp_ctl: Ensure pwr_lock is held before reading/writing controls
  ALSA: hda: hda_cs_dsp_ctl: Minor clean and redundant code removal
  ALSA: oss: Fix potential deadlock at unregistration
  ALSA: rawmidi: Drop register_mutex in snd_rawmidi_free()
  ALSA: hda/realtek: Add Intel Reference SSID to support headset keys
  ALSA: hda/realtek: Add quirk for ASUS GV601R laptop
  ALSA: hda/realtek: Correct pin configs for ASUS G533Z
  ALSA: usb-audio: Avoid superfluous endpoint setup
  ALSA: usb-audio: Correct the return code from snd_usb_endpoint_set_params()
  ALSA: usb-audio: Apply mutex around snd_usb_endpoint_set_params()
  ALSA: usb-audio: Avoid unnecessary interface change at EP close
  ALSA: hda: Update register polling macros
  ALSA: hda/realtek: remove ALC289_FIXUP_DUAL_SPK for Dell 5530

2 years agoMerge tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux...
Linus Torvalds [Fri, 14 Oct 2022 20:14:03 +0000 (13:14 -0700)]
Merge tag 'leds-6.1-rc1' of git://git./linux/kernel/git/pavel/linux-leds

Pull LED updates from Pavel Machek:
 "This is very quiet release for LEDs, pca963 got blinking support and
  that's pretty much it"

* tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds:
  leds: pca963: fix misleading indentation
  dt-bindings: leds: Document mmc trigger
  leds: pca963x: fix blink with hw acceleration

2 years agoMerge tag 'sched-psi-2022-10-14' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 14 Oct 2022 20:03:00 +0000 (13:03 -0700)]
Merge tag 'sched-psi-2022-10-14' of git://git./linux/kernel/git/tip/tip

Pull PSI updates from Ingo Molnar:

 - Various performance optimizations, resulting in a 4%-9% speedup in
   the mmtests/config-scheduler-perfpipe micro-benchmark.

 - New interface to turn PSI on/off on a per cgroup level.

* tag 'sched-psi-2022-10-14' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/psi: Per-cgroup PSI accounting disable/re-enable interface
  sched/psi: Cache parent psi_group to speed up group iteration
  sched/psi: Consolidate cgroup_psi()
  sched/psi: Add PSI_IRQ to track IRQ/SOFTIRQ pressure
  sched/psi: Remove NR_ONCPU task accounting
  sched/psi: Optimize task switch inside shared cgroups again
  sched/psi: Move private helpers to sched/stats.h
  sched/psi: Save percpu memory when !psi_cgroups_enabled
  sched/psi: Don't create cgroup PSI files when psi_disabled
  sched/psi: Fix periodic aggregation shut off

2 years agoMerge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Linus Torvalds [Fri, 14 Oct 2022 19:38:03 +0000 (12:38 -0700)]
Merge tag 'arm64-fixes' of git://git./linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Cortex-A55 errata workaround (repeat TLBI)

 - AMPERE1 added to the Spectre-BHB affected list

 - MTE fix to avoid setting PG_mte_tagged if no tags have been touched
   on a page

 - Fixed typo in the SCTLR_EL1.SPINTMASK bit naming (the commit log has
   other typos)

 - perf: return value check in ali_drw_pmu_probe(),
   ALIBABA_UNCORE_DRW_PMU dependency on ACPI

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Add AMPERE1 to the Spectre-BHB affected list
  arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored
  MAINTAINERS: rectify file entry in ALIBABA PMU DRIVER
  drivers/perf: ALIBABA_UNCORE_DRW_PMU should depend on ACPI
  drivers/perf: fix return value check in ali_drw_pmu_probe()
  arm64: errata: Add Cortex-A55 to the repeat tlbi list
  arm64/sysreg: Fix typo in SCTR_EL1.SPINTMASK

2 years agoMerge tag 'mm-stable-2022-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 14 Oct 2022 19:28:43 +0000 (12:28 -0700)]
Merge tag 'mm-stable-2022-10-13' of git://git./linux/kernel/git/akpm/mm

Pull more MM updates from Andrew Morton:

 - fix a race which causes page refcounting errors in ZONE_DEVICE pages
   (Alistair Popple)

 - fix userfaultfd test harness instability (Peter Xu)

 - various other patches in MM, mainly fixes

* tag 'mm-stable-2022-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (29 commits)
  highmem: fix kmap_to_page() for kmap_local_page() addresses
  mm/page_alloc: fix incorrect PGFREE and PGALLOC for high-order page
  mm/selftest: uffd: explain the write missing fault check
  mm/hugetlb: use hugetlb_pte_stable in migration race check
  mm/hugetlb: fix race condition of uffd missing/minor handling
  zram: always expose rw_page
  LoongArch: update local TLB if PTE entry exists
  mm: use update_mmu_tlb() on the second thread
  kasan: fix array-bounds warnings in tests
  hmm-tests: add test for migrate_device_range()
  nouveau/dmem: evict device private memory during release
  nouveau/dmem: refactor nouveau_dmem_fault_copy_one()
  mm/migrate_device.c: add migrate_device_range()
  mm/migrate_device.c: refactor migrate_vma and migrate_deivce_coherent_page()
  mm/memremap.c: take a pgmap reference on page allocation
  mm: free device private pages have zero refcount
  mm/memory.c: fix race when faulting a device private page
  mm/damon: use damon_sz_region() in appropriate place
  mm/damon: move sz_damon_region to damon_sz_region
  lib/test_meminit: add checks for the allocation functions
  ...

2 years agoRevert "PCI: Distribute available resources for root buses, too"
Bjorn Helgaas [Fri, 14 Oct 2022 18:45:45 +0000 (13:45 -0500)]
Revert "PCI: Distribute available resources for root buses, too"

This reverts commit e96e27fc6f7971380283768e9a734af16b1716ee.

Jonathan reported that this commit broke this topology, where all the space
available on bus 02 was assigned to the 02:00.0 bridge window, leaving none
for the e1000 device at 02:00.1:

  pci 0000:00:04.0: bridge window [mem 0x10200000-0x103fffff] to [bus 02-04]
  pci 0000:02:00.0: bridge window [mem 0x10200000-0x103fffff] to [bus 03-04]
  pci 0000:02:00.1: BAR 0: failed to assign [mem size 0x00020000]
  e1000 0000:02:00.1: can't ioremap BAR 0: [??? 0x00000000 flags 0x0]

Link: https://lore.kernel.org/r/20221014124553.0000696f@huawei.com
Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2 years agoMerge tag 'parisc-for-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller...
Linus Torvalds [Fri, 14 Oct 2022 19:10:01 +0000 (12:10 -0700)]
Merge tag 'parisc-for-6.1-1' of git://git./linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:
 "Fixes:

   - When we added basic vDSO support in kernel 5.18 we introduced a bug
     which prevented a mmap() of graphic card memory. This is because we
     used the DMB (data memory break trap bit) page flag as special-bit,
     but missed to clear that bit when loading the TLB.

   - Graphics card memory size was not correctly aligned

   - Spelling fixes (from Colin Ian King)

  Enhancements:

   - PDC console (which uses firmware calls) now rewritten as early
     console

   - Reduced size of alternative tables"

* tag 'parisc-for-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver
  parisc: Fix userspace graphics card breakage due to pgtable special bit
  parisc: fbdev/stifb: Align graphics memory size to 4MB
  parisc: Convert PDC console to an early console
  parisc: Reduce kernel size by packing alternative tables

2 years agoMerge tag 's390-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Linus Torvalds [Fri, 14 Oct 2022 18:36:05 +0000 (11:36 -0700)]
Merge tag 's390-6.1-2' of git://git./linux/kernel/git/s390/linux

Pull more s390 updates from Vasily Gorbik:

 - Generate a change uevent on unsolicited device end I/O interrupt for
   z/VM unit record devices supported by the vmur driver. This event can
   be used to automatically trigger processing of files as they arrive
   in the z/VM reader.

* tag 's390-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/vmur: generate uevent on unsolicited device end
  s390/vmur: remove unnecessary BUG statement

2 years agoMerge tag 'riscv-for-linus-6.1-mw2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 14 Oct 2022 18:21:11 +0000 (11:21 -0700)]
Merge tag 'riscv-for-linus-6.1-mw2' of git://git./linux/kernel/git/riscv/linux

Pull more RISC-V updates from Palmer Dabbelt:

 - DT updates for the PolarFire SOC

 - a fix to correct the handling of write-only mappings

 - m{vetndor,arcd,imp}id is now in /proc/cpuinfo

 - the SiFive L2 cache controller support has been refactored to also
   support L3 caches

 - misc fixes, cleanups and improvements throughout the tree

* tag 'riscv-for-linus-6.1-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (42 commits)
  MAINTAINERS: add RISC-V's patchwork
  RISC-V: Make port I/O string accessors actually work
  riscv: enable software resend of irqs
  RISC-V: Re-enable counter access from userspace
  riscv: vdso: fix NULL deference in vdso_join_timens() when vfork
  riscv: Add cache information in AUX vector
  soc: sifive: ccache: define the macro for the register shifts
  soc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes
  soc: sifive: ccache: reduce printing on init
  soc: sifive: ccache: determine the cache level from dts
  soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.
  dt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache
  riscv: check for kernel config option in t-head memory types errata
  riscv: use BIT() marco for cpufeature probing
  riscv: use BIT() macros in t-head errata init
  riscv: drop some idefs from CMO initialization
  riscv: cleanup svpbmt cpufeature probing
  riscv: Pass -mno-relax only on lld < 15.0.0
  RISC-V: Avoid dereferening NULL regs in die()
  dt-bindings: riscv: add new riscv,isa strings for emulators
  ...

2 years agoMerge tag 'powerpc-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Fri, 14 Oct 2022 18:16:18 +0000 (11:16 -0700)]
Merge tag 'powerpc-6.1-2' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix 32-bit syscall wrappers with 64-bit arguments of unaligned
   register-pairs. Notably this broke ftruncate64 & pread/write64, which
   can lead to file corruption.

 - Fix lost interrupts when returning to soft-masked context on 64-bit.

 - Fix build failure when CONFIG_DTL=n.

Thanks to Nicholas Piggin, Jason A. Donenfeld, Guenter Roeck, Arnd
Bergmann, and Sachin Sant.

* tag 'powerpc-6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries: Fix CONFIG_DTL=n build
  powerpc/64s/interrupt: Fix lost interrupts when returning to soft-masked context
  powerpc/32: fix syscall wrappers with 64-bit arguments of unaligned register-pairs

2 years agodrm/amd/display: Fix build breakage with CONFIG_DEBUG_FS=n
Nathan Chancellor [Fri, 14 Oct 2022 15:21:03 +0000 (08:21 -0700)]
drm/amd/display: Fix build breakage with CONFIG_DEBUG_FS=n

After commit 8799c0be89eb ("drm/amd/display: Fix vblank refcount in vrr
transition"), a build with CONFIG_DEBUG_FS=n is broken due to a
misplaced brace, along the lines of:

  In file included from drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_trace.h:39,
                   from drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:41:
  drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c: At top level:
  ./include/drm/drm_atomic.h:864:9: error: expected identifier or ‘(’ before ‘for’
    864 |         for ((__i) = 0;                                                 \
        |         ^~~
  drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c:8317:9: note: in expansion of macro ‘for_each_new_crtc_in_state’
   8317 |         for_each_new_crtc_in_state(state, crtc, new_crtc_state, j)
        |         ^~~~~~~~~~~~~~~~~~~~~~~~~~

Move the brace within the #ifdef so that the file can be built with or
without CONFIG_DEBUG_FS.

Fixes: 8799c0be89eb ("drm/amd/display: Fix vblank refcount in vrr transition")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2 years agoparisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver
Colin Ian King [Thu, 13 Oct 2022 22:19:15 +0000 (23:19 +0100)]
parisc: Fix spelling mistake "mis-match" -> "mismatch" in eisa driver

There are several spelling mistakes in kernel error messages. Fix them.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2 years agocifs: fix static checker warning
Paulo Alcantara [Fri, 14 Oct 2022 16:40:42 +0000 (13:40 -0300)]
cifs: fix static checker warning

Remove unnecessary NULL check of oparam->cifs_sb when parsing symlink
error response as it's already set by all smb2_open_file() callers and
deferenced earlier.

This fixes below report:

  fs/cifs/smb2file.c:126 smb2_open_file()
  warn: variable dereferenced before check 'oparms->cifs_sb' (see line 112)

Link: https://lore.kernel.org/r/Y0kt42j2tdpYakRu@kili
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2 years agoperf: Skip and warn on unknown format 'configN' attrs
Rob Herring [Tue, 4 Oct 2022 19:12:35 +0000 (14:12 -0500)]
perf: Skip and warn on unknown format 'configN' attrs

If the kernel exposes a new perf_event_attr field in a format attr, perf
will return an error stating the specified PMU can't be found. For
example, a format attr with 'config3:0-63' causes an error as config3 is
unknown to perf. This causes a compatibility issue between a newer
kernel with older perf tool.

Before this change with a kernel adding 'config3' I get:

  $ perf record -e arm_spe// -- true
  event syntax error: 'arm_spe//'
                       \___ Cannot find PMU `arm_spe'. Missing kernel support?
  Run 'perf list' for a list of valid events

   Usage: perf record [<options>] [<command>]
      or: perf record [<options>] -- <command> [<options>]

      -e, --event <event>   event selector. use 'perf list' to list
  available events

After this change, I get:

  $ perf record -e arm_spe// -- true
  WARNING: 'arm_spe_0' format 'inv_event_filter' requires 'perf_event_attr::config3' which is not supported by this version of perf!
  [ perf record: Woken up 2 times to write data ]
  [ perf record: Captured and wrote 0.091 MB perf.data ]

To support unknown configN formats, rework the YACC implementation to
pass any config[0-9]+ format to perf_pmu__new_format() to handle with a
warning.

Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Rob Herring <robh@kernel.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220914-arm-perf-tool-spe1-2-v2-v4-1-83c098e6212e@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf list: Fix metricgroups title message
Andi Kleen [Tue, 4 Oct 2022 19:26:34 +0000 (12:26 -0700)]
perf list: Fix metricgroups title message

  $ perf list metricgroups

gives

  List of pre-defined events (to be used in -e):

  Metric Groups:

  Backend
  Bad
  BadSpec

But that's incorrect of course because metric groups or metrics can only
be specified with -M. So fix the message to say -e or -M

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Link: https://lore.kernel.org/r/20221004192634.998984-1-ak@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf mem: Fix -C option behavior for perf mem record
Namhyung Kim [Tue, 4 Oct 2022 20:02:11 +0000 (13:02 -0700)]
perf mem: Fix -C option behavior for perf mem record

The -C/--cpu option was maily for report but it also affected record as
it ate the option.  So users needed to use "--" after perf mem record to
pass the info to the perf record properly.

Check if this option is set for record, and pass it to the actual perf
record.

Before)
  $ sudo perf --debug perf-event-open mem record -C 0 2>&1 | grep -a sys_perf_event_open
  ...
  sys_perf_event_open: pid -1  cpu 0  group_fd -1  flags 0x8 = 4
  sys_perf_event_open: pid -1  cpu 1  group_fd -1  flags 0x8 = 5
  sys_perf_event_open: pid -1  cpu 2  group_fd -1  flags 0x8 = 6
  sys_perf_event_open: pid -1  cpu 3  group_fd -1  flags 0x8 = 7
  sys_perf_event_open: pid -1  cpu 0  group_fd -1  flags 0x8 = 8
  sys_perf_event_open: pid -1  cpu 1  group_fd -1  flags 0x8 = 9
  sys_perf_event_open: pid -1  cpu 2  group_fd -1  flags 0x8 = 10
  sys_perf_event_open: pid -1  cpu 3  group_fd -1  flags 0x8 = 11
  ...

After)
  $ sudo perf --debug perf-event-open mem record -C 0 2>&1 | grep -a sys_perf_event_open
  ...
  sys_perf_event_open: pid -1  cpu 0  group_fd -1  flags 0x8 = 4
  sys_perf_event_open: pid -1  cpu 0  group_fd -1  flags 0x8 = 5
  sys_perf_event_open: pid -1  cpu 0  group_fd -1  flags 0x8 = 6
  sys_perf_event_open: pid -1  cpu 0  group_fd -1  flags 0x8 = 7

Reported-by: Ravi Bangoria <ravi.bangoria@amd.com>
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: Leo Yan <leo.yan@linaro.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221004200211.1444521-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf annotate: Add missing condition flags for arm64
Namhyung Kim [Thu, 6 Oct 2022 22:22:32 +0000 (15:22 -0700)]
perf annotate: Add missing condition flags for arm64

According to the document [1], it can also have 'hs', 'lo', 'vc', 'vs' as a
condition code.  Let's add them too.

[1] https://community.arm.com/arm-community-blogs/b/architectures-and-processors-blog/posts/condition-codes-1-condition-flags-and-codes

Reported-by: Kevin Nomura <nomurak@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: John Garry <john.garry@huawei.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will@kernel.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: https://lore.kernel.org/r/20221006222232.266416-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agolibperf: Do not include non-UAPI linux/compiler.h header
Arnaldo Carvalho de Melo [Fri, 14 Oct 2022 13:39:21 +0000 (10:39 -0300)]
libperf: Do not include non-UAPI linux/compiler.h header

Its just for that __packed define, so use it expanded as __attribute__((packed)),
like the other files in /usr/include do.

This was problem was preventing building the libperf examples on ALT
Linux and Fedora 35, fix it.

Reported-by: Vitaly Chikunov <vt@altlinux.org>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Dmitry Levin <ldv@altlinux.org
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/Y0lnpl2Ix7VljVDc@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoscripts/clang-tools: Convert clang-tidy args to list
Guru Das Srinagesh [Tue, 11 Oct 2022 19:06:00 +0000 (12:06 -0700)]
scripts/clang-tools: Convert clang-tidy args to list

Convert list of clang-tidy arguments to a list for ease of adding to
them and extending them as required.

Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agomodpost: put modpost options before argument
Richard Acayan [Tue, 11 Oct 2022 01:38:28 +0000 (21:38 -0400)]
modpost: put modpost options before argument

The musl implementation of getopt stops looking for options after the
first non-option argument. Put the options before the non-option
argument so environments using musl can still build the kernel and
modules.

Fixes: f73edc8951b2 ("kbuild: unify two modpost invocations")
Link: https://git.musl-libc.org/cgit/musl/tree/src/misc/getopt.c?h=dc9285ad1dc19349c407072cc48ba70dab86de45#n44
Signed-off-by: Richard Acayan <mailingradian@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2 years agoperf test: Fix test_arm_coresight.sh failures on Juno
James Clark [Wed, 5 Oct 2022 14:05:08 +0000 (15:05 +0100)]
perf test: Fix test_arm_coresight.sh failures on Juno

This test commonly fails on Arm Juno because the instruction interval
is large enough to miss generating any samples for Perf in system-wide
mode.

Fix this by lowering the interval until a comfortable number of Perf
instructions are generated. The test is still quick to run because only
a small amount of trace is gathered.

Before:

  sudo ./perf test coresight -vvv
  ...
  Recording trace with system wide mode
  Looking at perf.data file for dumping branch samples:
  Looking at perf.data file for reporting branch samples:
  Looking at perf.data file for instruction samples:
  CoreSight system wide testing: FAIL
  ...

After:

  sudo ./perf test coresight -vvv
  ...
  Recording trace with system wide mode
  Looking at perf.data file for dumping branch samples:
  Looking at perf.data file for reporting branch samples:
  Looking at perf.data file for instruction samples:
  CoreSight system wide testing: PASS
  ...

Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Suzuki Poulouse <suzuki.poulose@arm.com>
Cc: coresight@lists.linaro.org
Link: https://lore.kernel.org/r/20221005140508.1537277-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoperf stat: Support old kernels for bperf cgroup counting
Namhyung Kim [Tue, 11 Oct 2022 05:28:08 +0000 (22:28 -0700)]
perf stat: Support old kernels for bperf cgroup counting

The recent change in the cgroup will break the backward compatiblity in
the BPF program.  It should support both old and new kernels using BPF
CO-RE technique.

Like the task_struct->__state handling in the offcpu analysis, we can
check the field name in the cgroup struct.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: bpf@vger.kernel.org
Cc: cgroups@vger.kernel.org
Cc: zefan li <lizefan.x@bytedance.com>
Link: http://lore.kernel.org/lkml/20221011052808.282394-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2 years agoparisc: Fix userspace graphics card breakage due to pgtable special bit
Helge Deller [Fri, 14 Oct 2022 08:18:53 +0000 (10:18 +0200)]
parisc: Fix userspace graphics card breakage due to pgtable special bit

Commit df24e1783e6e ("parisc: Add vDSO support") introduced the vDSO
support, for which a _PAGE_SPECIAL page table flag was needed.  Since we
wanted to keep every page table entry in 32-bits, this patch re-used the
existing - but yet unused - _PAGE_DMB flag (which triggers a hardware break
if a page is accessed) to store the special bit.

But when graphics card memory is mmapped into userspace, the kernel uses
vm_iomap_memory() which sets the the special flag. So, with the DMB bit
set, every access to the graphics memory now triggered a hardware
exception and segfaulted the userspace program.

Fix this breakage by dropping the DMB bit when writing the page
protection bits to the CPU TLB.

In addition this patch adds a small optimization: if huge pages aren't
configured (which is at least the case for 32-bit kernels), then the
special bit is stored in the hpage (HUGE PAGE) bit instead. That way we
can skip to reset the DMB bit.

Fixes: df24e1783e6e ("parisc: Add vDSO support")
Cc: <stable@vger.kernel.org> # 5.18+
Signed-off-by: Helge Deller <deller@gmx.de>
2 years agoparisc: fbdev/stifb: Align graphics memory size to 4MB
Helge Deller [Fri, 14 Oct 2022 08:13:55 +0000 (10:13 +0200)]
parisc: fbdev/stifb: Align graphics memory size to 4MB

Independend of the current graphics resolution, adjust the reported
graphics card memory size to the next 4MB boundary.
This fixes the fbtest program which expects a naturally aligned size.

Signed-off-by: Helge Deller <deller@gmx.de>
Cc: <stable@vger.kernel.org>
2 years agoMerge tag 'drm-next-2022-10-14' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 14 Oct 2022 04:56:34 +0000 (21:56 -0700)]
Merge tag 'drm-next-2022-10-14' of git://anongit.freedesktop.org/drm/drm

Pull more drm updates from Dave Airlie:
 "Round of fixes for the merge window stuff, bunch of amdgpu and i915
  changes, this should have the gcc11 warning fix, amongst other
  changes.

  amdgpu:
   - DC mutex fix
   - DC SubVP fixes
   - DCN 3.2.x fixes
   - DCN 3.1.x fixes
   - SDMA 6.x fixes
   - Enable DPIA for 3.1.4
   - VRR fixes
   - VRAM BO swapping fix
   - Revert dirty fb helper change
   - SR-IOV suspend/resume fixes
   - Work around GCC array bounds check fail warning
   - UMC 8.10 fixes
   - Misc fixes and cleanups

  i915:
   - Round to closest in g4x+ HDMI clock readout
   - Update MOCS table for EHL
   - Fix PSR_IMR/IIR field handling
   - Fix watermark calculations for gen12+/DG2 modifiers
   - Reject excessive dotclocks early
   - Fix revocation of non-persistent contexts
   - Handle migration for dpt
   - Fix display problems after resume
   - Allow control over the flags when migrating
   - Consider DG2_RC_CCS_CC when migrating buffers"

* tag 'drm-next-2022-10-14' of git://anongit.freedesktop.org/drm/drm: (110 commits)
  drm/amd/display: Add HUBP surface flip interrupt handler
  drm/i915/display: consider DG2_RC_CCS_CC when migrating buffers
  drm/i915: allow control over the flags when migrating
  drm/amd/display: Simplify bool conversion
  drm/amd/display: fix transfer function passed to build_coefficients()
  drm/amd/display: add a license to cursor_reg_cache.h
  drm/amd/display: make virtual_disable_link_output static
  drm/amd/display: fix indentation in dc.c
  drm/amd/display: make dcn32_split_stream_for_mpc_or_odm static
  drm/amd/display: fix build error on arm64
  drm/amd/display: 3.2.207
  drm/amd/display: Clean some DCN32 macros
  drm/amdgpu: Add poison mode query for umc v8_10_0
  drm/amdgpu: Update umc v8_10_0 headers
  drm/amdgpu: fix coding style issue for mca notifier
  drm/amdgpu: define convert_error_address for umc v8.7
  drm/amdgpu: define RAS convert_error_address API
  drm/amdgpu: remove check for CE in RAS error address query
  drm/i915: Fix display problems after resume
  drm/amd/display: fix array-bounds error in dc_stream_remove_writeback() [take 2]
  ...

2 years agoMerge tag 'block-6.1-2022-10-13' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 14 Oct 2022 04:25:57 +0000 (21:25 -0700)]
Merge tag 'block-6.1-2022-10-13' of git://git.kernel.dk/linux

Pull more block updates from Jens Axboe:
 "Fixes that ended up landing later than the initial block pull request.
  Nothing really major in here:

   - NVMe pull request via Christoph:
        - add NVME_QUIRK_BOGUS_NID for Lexar NM760 (Abhijit)
        - add NVME_QUIRK_NO_DEEPEST_PS to avoid the deepest sleep state
          on ZHITAI TiPro5000 SSDs (Xi Ruoyao)
        - fix possible hang caused during ctrl deletion (Sagi Grimberg)
        - fix possible hang in live ns resize with ANA access (Sagi
          Grimberg)

   - Proactively avoid a sign extension issue with the queue flags
     (Brian)

   - Regression fix for hidden disks (Christoph)

   - Update OPAL maintainers entry (Jonathan)

   - blk-wbt regression initialization fix (Yu)"

* tag 'block-6.1-2022-10-13' of git://git.kernel.dk/linux:
  nvme-multipath: fix possible hang in live ns resize with ANA access
  nvme-pci: avoid the deepest sleep state on ZHITAI TiPro5000 SSDs
  nvme-pci: add NVME_QUIRK_BOGUS_NID for Lexar NM760
  nvme-tcp: fix possible hang caused during ctrl deletion
  nvme-rdma: fix possible hang caused during ctrl deletion
  block: fix leaking minors of hidden disks
  block: avoid sign extend problem with default queue flags mask
  blk-wbt: fix that 'rwb->wc' is always set to 1 in wbt_init()
  block: Remove the repeat word 'can'
  MAINTAINERS: Update SED-Opal Maintainers

2 years agoMerge tag 'io_uring-6.1-2022-10-13' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 14 Oct 2022 04:15:30 +0000 (21:15 -0700)]
Merge tag 'io_uring-6.1-2022-10-13' of git://git.kernel.dk/linux

Pull more io_uring updates from Jens Axboe:
 "A collection of fixes that ended up either being later than the
  initial pull, or dependent on multiple branches (6.0-late being one of
  them) and hence deferred purposely. This contains:

   - Cleanup fixes for the single submitter late 6.0 change, which we
     pushed to 6.1 to keep the 6.0 changes small (Dylan, Pavel)

   - Fix for IORING_OP_CONNECT not handling -EINPROGRESS correctly (me)

   - Ensure that the zc sendmsg variant gets audited correctly (me)

   - Regression fix from this merge window where kiocb_end_write()
     doesn't always gets called, which can cause issues with fs freezing
     (me)

   - Registered files SCM handling fix (Pavel)

   - Regression fix for big sqe dumping in fdinfo (Pavel)

   - Registered buffers accounting fix (Pavel)

   - Remove leftover notification structures, we killed them off late in
     6.0 (Pavel)

   - Minor optimizations (Pavel)

   - Cosmetic variable shadowing fix (Stefan)"

* tag 'io_uring-6.1-2022-10-13' of git://git.kernel.dk/linux:
  io_uring/rw: ensure kiocb_end_write() is always called
  io_uring: fix fdinfo sqe offsets calculation
  io_uring: local variable rw shadows outer variable in io_write
  io_uring/opdef: remove 'audit_skip' from SENDMSG_ZC
  io_uring: optimise locking for local tw with submit_wait
  io_uring: remove redundant memory barrier in io_req_local_work_add
  io_uring/net: handle -EINPROGRESS correct for IORING_OP_CONNECT
  io_uring: remove notif leftovers
  io_uring: correct pinned_vm accounting
  io_uring/af_unix: defer registered files gc to io_uring release
  io_uring: limit registration w/ SINGLE_ISSUER
  io_uring: remove io_register_submitter
  io_uring: simplify __io_uring_add_tctx_node

2 years agoMAINTAINERS: add RISC-V's patchwork
Conor Dooley [Tue, 11 Oct 2022 16:07:45 +0000 (17:07 +0100)]
MAINTAINERS: add RISC-V's patchwork

The RISC-V patchwork instance on kernel.org has had some necromancy
performed on it & will be used going forward. The statuses that are
intended to be used are:
- New: No action has been taken yet
- Under Review: The maintainer is waiting for review comments from others
- Changes Requested: Either the maintainer or a reviewer requested
  changes in the patch. The patch author is expected to submit a new
  version
- Superseded: There's a new version of the patch available
- Not Applicable: The patch is not intended for the RISC-V tree
- Accepted: The patch has been applied
- Rejected: The patch has been rejected, with reasons stated in an
  email

Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221011160744.2167025-1-conor@kernel.org/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoMerge tag 'amd-drm-fixes-6.1-2022-10-12' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Thu, 13 Oct 2022 21:47:25 +0000 (07:47 +1000)]
Merge tag 'amd-drm-fixes-6.1-2022-10-12' of https://gitlab.freedesktop.org/agd5f/linux into drm-next

amd-drm-fixes-6.1-2022-10-12:

amdgpu:
- DC mutex fix
- DC SubVP fixes
- DCN 3.2.x fixes
- DCN 3.1.x fixes
- SDMA 6.x fixes
- Enable DPIA for 3.1.4
- VRR fixes
- VRAM BO swapping fix
- Revert dirty fb helper change
- SR-IOV suspend/resume fixes
- Work around GCC array bounds check fail warning
- UMC 8.10 fixes
- Misc fixes and cleanups

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221012162650.8810-1-alexander.deucher@amd.com
2 years agoMerge tag 'drm-intel-next-fixes-2022-10-13' of git://anongit.freedesktop.org/drm...
Dave Airlie [Thu, 13 Oct 2022 21:46:50 +0000 (07:46 +1000)]
Merge tag 'drm-intel-next-fixes-2022-10-13' of git://anongit.freedesktop.org/drm/drm-intel into drm-next

- Fix revocation of non-persistent contexts (Tvrtko Ursulin)
- Handle migration for dpt (Matthew Auld)
- Fix display problems after resume (Thomas Hellström)
- Allow control over the flags when migrating (Matthew Auld)
- Consider DG2_RC_CCS_CC when migrating buffers (Matthew Auld)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y0gK9QmCmktLLzqp@tursulin-desk
2 years agortc: rv3028: Fix codestyle errors
Ke Sun [Sat, 8 Oct 2022 07:13:21 +0000 (15:13 +0800)]
rtc: rv3028: Fix codestyle errors

Compiler warnings:

drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_set':
drivers/rtc/rtc-rv3028.c:559:20: warning: statement will never be executed [-Wswitch-unreachable]
  559 |                 u8 mode;
      |                    ^~~~
drivers/rtc/rtc-rv3028.c: In function 'rv3028_param_get':
drivers/rtc/rtc-rv3028.c:526:21: warning: statement will never be executed [-Wswitch-unreachable]
  526 |                 u32 value;
      |                     ^~~~~

Fix it by moving the variable declaration to the beginning of the function.

Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: linux-rtc@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: Ke Sun <sunke@kylinos.cn>
Link: https://lore.kernel.org/r/20221008071321.1799971-1-sunke@kylinos.cn
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2 years agortc: cmos: Fix event handler registration ordering issue
Rafael J. Wysocki [Wed, 12 Oct 2022 18:07:01 +0000 (20:07 +0200)]
rtc: cmos: Fix event handler registration ordering issue

Because acpi_install_fixed_event_handler() enables the event
automatically on success, it is incorrect to call it before the
handler routine passed to it is ready to handle events.

Unfortunately, the rtc-cmos driver does exactly the incorrect thing
by calling cmos_wake_setup(), which passes rtc_handler() to
acpi_install_fixed_event_handler(), before cmos_do_probe(), because
rtc_handler() uses dev_get_drvdata() to get to the cmos object
pointer and the driver data pointer is only populated in
cmos_do_probe().

This leads to a NULL pointer dereference in rtc_handler() on boot
if the RTC fixed event happens to be active at the init time.

To address this issue, change the initialization ordering of the
driver so that cmos_wake_setup() is always called after a successful
cmos_do_probe() call.

While at it, change cmos_pnp_probe() to call cmos_do_probe() after
the initial if () statement used for computing the IRQ argument to
be passed to cmos_do_probe() which is cleaner than calling it in
each branch of that if () (local variable "irq" can be of type int,
because it is passed to that function as an argument of type int).

Note that commit 6492fed7d8c9 ("rtc: rtc-cmos: Do not check
ACPI_FADT_LOW_POWER_S0") caused this issue to affect a larger number
of systems, because previously it only affected systems with
ACPI_FADT_LOW_POWER_S0 set, but it is present regardless of that
commit.

Fixes: 6492fed7d8c9 ("rtc: rtc-cmos: Do not check ACPI_FADT_LOW_POWER_S0")
Fixes: a474aaedac99 ("rtc-cmos: move wake setup from ACPI glue into RTC driver")
Link: https://lore.kernel.org/linux-acpi/20221010141630.zfzi7mk7zvnmclzy@techsingularity.net/
Reported-by: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Bjorn Helgaas <bhelgaas@google.com>
Tested-by: Mel Gorman <mgorman@techsingularity.net>
Link: https://lore.kernel.org/r/5629262.DvuYhMxLoT@kreacher
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2 years agoRISC-V: Make port I/O string accessors actually work
Maciej W. Rozycki [Thu, 22 Sep 2022 21:56:06 +0000 (22:56 +0100)]
RISC-V: Make port I/O string accessors actually work

Fix port I/O string accessors such as `insb', `outsb', etc. which use
the physical PCI port I/O address rather than the corresponding memory
mapping to get at the requested location, which in turn breaks at least
accesses made by our parport driver to a PCIe parallel port such as:

PCI parallel port detected: 1415:c118, I/O at 0x1000(0x1008), IRQ 20
parport0: PC-style at 0x1000 (0x1008), irq 20, using FIFO [PCSPP,TRISTATE,COMPAT,EPP,ECP]

causing a memory access fault:

Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000001008
Oops [#1]
Modules linked in:
CPU: 1 PID: 350 Comm: cat Not tainted 6.0.0-rc2-00283-g10d4879f9ef0-dirty #23
Hardware name: SiFive HiFive Unmatched A00 (DT)
epc : parport_pc_fifo_write_block_pio+0x266/0x416
 ra : parport_pc_fifo_write_block_pio+0xb4/0x416
epc : ffffffff80542c3e ra : ffffffff80542a8c sp : ffffffd88899fc60
 gp : ffffffff80fa2700 tp : ffffffd882b1e900 t0 : ffffffd883d0b000
 t1 : ffffffffff000002 t2 : 4646393043330a38 s0 : ffffffd88899fcf0
 s1 : 0000000000001000 a0 : 0000000000000010 a1 : 0000000000000000
 a2 : ffffffd883d0a010 a3 : 0000000000000023 a4 : 00000000ffff8fbb
 a5 : ffffffd883d0a001 a6 : 0000000100000000 a7 : ffffffc800000000
 s2 : ffffffffff000002 s3 : ffffffff80d28880 s4 : ffffffff80fa1f50
 s5 : 0000000000001008 s6 : 0000000000000008 s7 : ffffffd883d0a000
 s8 : 0004000000000000 s9 : ffffffff80dc1d80 s10: ffffffd8807e4000
 s11: 0000000000000000 t3 : 00000000000000ff t4 : 393044410a303930
 t5 : 0000000000001000 t6 : 0000000000040000
status: 0000000200000120 badaddr: 0000000000001008 cause: 000000000000000f
[<ffffffff80543212>] parport_pc_compat_write_block_pio+0xfe/0x200
[<ffffffff8053bbc0>] parport_write+0x46/0xf8
[<ffffffff8050530e>] lp_write+0x158/0x2d2
[<ffffffff80185716>] vfs_write+0x8e/0x2c2
[<ffffffff80185a74>] ksys_write+0x52/0xc2
[<ffffffff80185af2>] sys_write+0xe/0x16
[<ffffffff80003770>] ret_from_syscall+0x0/0x2
---[ end trace 0000000000000000 ]---

For simplicity address the problem by adding PCI_IOBASE to the physical
address requested in the respective wrapper macros only, observing that
the raw accessors such as `__insb', `__outsb', etc. are not supposed to
be used other than by said macros.  Remove the cast to `long' that is no
longer needed on `addr' now that it is used as an offset from PCI_IOBASE
and add parentheses around `addr' needed for predictable evaluation in
macro expansion.  No need to make said adjustments in separate changes
given that current code is gravely broken and does not ever work.

Signed-off-by: Maciej W. Rozycki <macro@orcam.me.uk>
Fixes: fab957c11efe2 ("RISC-V: Atomic and Locking Code")
Cc: stable@vger.kernel.org # v4.15+
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/alpine.DEB.2.21.2209220223080.29493@angie.orcam.me.uk
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoRISC-V: Add mvendorid, marchid, and mimpid to /proc/cpuinfo output
Palmer Dabbelt [Thu, 13 Oct 2022 21:02:36 +0000 (14:02 -0700)]
RISC-V: Add mvendorid, marchid, and mimpid to /proc/cpuinfo output

I'm merging this in as a single commit as it's a dependency for some
other work.

* commit '3baca1a4d490484fcd555413f1fec85b2e071912':
  RISC-V: Add mvendorid, marchid, and mimpid to /proc/cpuinfo output

2 years agoRISC-V: Make mmap() with PROT_WRITE imply PROT_READ
Palmer Dabbelt [Thu, 13 Oct 2022 19:49:12 +0000 (12:49 -0700)]
RISC-V: Make mmap() with PROT_WRITE imply PROT_READ

Commit 2139619bcad7 ("riscv: mmap with PROT_WRITE but no PROT_READ is
invalid") made mmap() reject mappings with only PROT_WRITE set in an
attempt to fix an observed inconsistency in behavior when attempting
to read from a PROT_WRITE-only mapping. The root cause of this behavior
was actually that while RISC-V's protection_map maps VM_WRITE to
readable PTE permissions (since write-only PTEs are considered reserved
by the privileged spec), the page fault handler considered loads from
VM_WRITE-only VMAs illegal accesses. Fix the underlying cause by
handling faults in VM_WRITE-only VMAs (patch 1) and then re-enable
use of mmap(PROT_WRITE) (patch 2), making RISC-V's behavior consistent
with all other architectures that don't support write-only PTEs.

* remotes/palmer/riscv-wonly:
  riscv: Allow PROT_WRITE-only mmap()
  riscv: Make VM_WRITE imply VM_READ

Link: https://lore.kernel.org/r/20220915193702.2201018-1-abrestic@rivosinc.com/
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoMerge tag 'devicetree-fixes-for-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 13 Oct 2022 19:22:42 +0000 (12:22 -0700)]
Merge tag 'devicetree-fixes-for-6.1-1' of git://git./linux/kernel/git/robh/linux

Pull devicetree fixes from Rob Herring:

 - Fixes for Mediatek MT6370 binding

 - Merge the DT overlay maintainer entry to the main entry as Pantelis
   is not active and Frank is taking a step back

* tag 'devicetree-fixes-for-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux:
  MAINTAINERS: of: collapse overlay entry into main device tree entry
  dt-bindings: mfd: mt6370: fix the interrupt order of the charger in the example
  dt-bindings: leds: mt6370: Fix MT6370 LED indicator DT warning

2 years agoMerge tag 'mmc-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Thu, 13 Oct 2022 19:19:18 +0000 (12:19 -0700)]
Merge tag 'mmc-v6.1-2' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC fixes from Ulf Hansson:
 "MMC core:
   - Add SD card quirk for broken discard

  MMC host:
   - renesas_sdhi: Fix clock rounding errors
   - sdhci-sprd: Fix minimum clock limit to detect cards
   - sdhci-tegra: Use actual clock rate for SW tuning correction"

* tag 'mmc-v6.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-sprd: Fix minimum clock limit
  mmc: sdhci-tegra: Use actual clock rate for SW tuning correction
  mmc: renesas_sdhi: Fix rounding errors
  mmc: core: Add SD card quirk for broken discard

2 years agoriscv: enable software resend of irqs
Conor Dooley [Fri, 29 Jul 2022 11:11:17 +0000 (12:11 +0100)]
riscv: enable software resend of irqs

The PLIC specification does not describe the interrupt pendings bits as
read-write, only that they "can be read". To allow for retriggering of
interrupts (and the use of the irq debugfs interface) enable
HARDIRQS_SW_RESEND for RISC-V.

Link: https://github.com/riscv/riscv-plic-spec/blob/master/riscv-plic.adoc#interrupt-pending-bits
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Acked-by: Palmer Dabbelt <palmer@rivosinc.com>
Tested-by: Palmer Dabbelt <palmer@rivosinc.com> # on QEMU
Reviewed-by: Björn Töpel <bjorn@kernel.org>
Link: https://lore.kernel.org/r/20220729111116.259146-1-conor.dooley@microchip.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoRISC-V: Re-enable counter access from userspace
Palmer Dabbelt [Wed, 28 Sep 2022 13:18:07 +0000 (06:18 -0700)]
RISC-V: Re-enable counter access from userspace

These counters were part of the ISA when we froze the uABI, removing
them breaks userspace.

Link: https://lore.kernel.org/all/YxEhC%2FmDW1lFt36J@aurel32.net/
Fixes: e9991434596f ("RISC-V: Add perf platform driver based on SBI PMU extension")
Tested-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220928131807.30386-1-palmer@rivosinc.com
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoriscv: vdso: fix NULL deference in vdso_join_timens() when vfork
Jisheng Zhang [Sat, 24 Sep 2022 07:07:37 +0000 (15:07 +0800)]
riscv: vdso: fix NULL deference in vdso_join_timens() when vfork

Testing tools/testing/selftests/timens/vfork_exec.c got below
kernel log:

[    6.838454] Unable to handle kernel access to user memory without uaccess routines at virtual address 0000000000000020
[    6.842255] Oops [#1]
[    6.842871] Modules linked in:
[    6.844249] CPU: 1 PID: 64 Comm: vfork_exec Not tainted 6.0.0-rc3-rt15+ #8
[    6.845861] Hardware name: riscv-virtio,qemu (DT)
[    6.848009] epc : vdso_join_timens+0xd2/0x110
[    6.850097]  ra : vdso_join_timens+0xd2/0x110
[    6.851164] epc : ffffffff8000635c ra : ffffffff8000635c sp : ff6000000181fbf0
[    6.852562]  gp : ffffffff80cff648 tp : ff60000000fdb700 t0 : 3030303030303030
[    6.853852]  t1 : 0000000000000030 t2 : 3030303030303030 s0 : ff6000000181fc40
[    6.854984]  s1 : ff60000001e6c000 a0 : 0000000000000010 a1 : ffffffff8005654c
[    6.856221]  a2 : 00000000ffffefff a3 : 0000000000000000 a4 : 0000000000000000
[    6.858114]  a5 : 0000000000000000 a6 : 0000000000000008 a7 : 0000000000000038
[    6.859484]  s2 : ff60000001e6c068 s3 : ff6000000108abb0 s4 : 0000000000000000
[    6.860751]  s5 : 0000000000001000 s6 : ffffffff8089dc40 s7 : ffffffff8089dc38
[    6.862029]  s8 : ffffffff8089dc30 s9 : ff60000000fdbe38 s10: 000000000000005e
[    6.863304]  s11: ffffffff80cc3510 t3 : ffffffff80d1112f t4 : ffffffff80d1112f
[    6.864565]  t5 : ffffffff80d11130 t6 : ff6000000181fa00
[    6.865561] status: 0000000000000120 badaddr: 0000000000000020 cause: 000000000000000d
[    6.868046] [<ffffffff8008dc94>] timens_commit+0x38/0x11a
[    6.869089] [<ffffffff8008dde8>] timens_on_fork+0x72/0xb4
[    6.870055] [<ffffffff80190096>] begin_new_exec+0x3c6/0x9f0
[    6.871231] [<ffffffff801d826c>] load_elf_binary+0x628/0x1214
[    6.872304] [<ffffffff8018ee7a>] bprm_execve+0x1f2/0x4e4
[    6.873243] [<ffffffff8018f90c>] do_execveat_common+0x16e/0x1ee
[    6.874258] [<ffffffff8018f9c8>] sys_execve+0x3c/0x48
[    6.875162] [<ffffffff80003556>] ret_from_syscall+0x0/0x2
[    6.877484] ---[ end trace 0000000000000000 ]---

This is because the mm->context.vdso_info is NULL in vfork case. From
another side, mm->context.vdso_info either points to vdso info
for RV64 or vdso info for compat, there's no need to bloat riscv's
mm_context_t, we can handle the difference when setup the additional
page for vdso.

Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Suggested-by: Palmer Dabbelt <palmer@rivosinc.com>
Fixes: 3092eb456375 ("riscv: compat: vdso: Add setup additional pages implementation")
Link: https://lore.kernel.org/r/20220924070737.3048-1-jszhang@kernel.org
Cc: stable@vger.kernel.org
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoMerge patch series "Use composable cache instead of L2 cache"
Palmer Dabbelt [Thu, 13 Oct 2022 18:06:57 +0000 (11:06 -0700)]
Merge patch series "Use composable cache instead of L2 cache"

Zong Li <zong.li@sifive.com> says:

Since composable cache may be L3 cache if private L2 cache exists, we
should use its original name "composable cache" to prevent confusion.

This patchset contains the modification which is related to ccache, such
as DT binding and EDAC driver.

* b4-shazam-merge:
  riscv: Add cache information in AUX vector
  soc: sifive: ccache: define the macro for the register shifts
  soc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes
  soc: sifive: ccache: reduce printing on init
  soc: sifive: ccache: determine the cache level from dts
  soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.
  dt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache

Link: https://lore.kernel.org/r/20220913061817.22564-1-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoriscv: Add cache information in AUX vector
Greentime Hu [Tue, 13 Sep 2022 06:18:17 +0000 (06:18 +0000)]
riscv: Add cache information in AUX vector

There are no standard CSR registers to provide cache information, the
way for RISC-V is to get this information from DT. sysconf syscall
could use them to get information of cache through AUX vector.

The result of 'getconf -a|grep -i cache' as follows:
LEVEL1_ICACHE_SIZE                 32768
LEVEL1_ICACHE_ASSOC                2
LEVEL1_ICACHE_LINESIZE             64
LEVEL1_DCACHE_SIZE                 32768
LEVEL1_DCACHE_ASSOC                4
LEVEL1_DCACHE_LINESIZE             64
LEVEL2_CACHE_SIZE                  524288
LEVEL2_CACHE_ASSOC                 8
LEVEL2_CACHE_LINESIZE              64
LEVEL3_CACHE_SIZE                  4194304
LEVEL3_CACHE_ASSOC                 16
LEVEL3_CACHE_LINESIZE              64
LEVEL4_CACHE_SIZE                  0
LEVEL4_CACHE_ASSOC                 0
LEVEL4_CACHE_LINESIZE              0

Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Zong Li <zong.li@sifive.com>
Suggested-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-8-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agosoc: sifive: ccache: define the macro for the register shifts
Zong Li [Tue, 13 Sep 2022 06:18:16 +0000 (06:18 +0000)]
soc: sifive: ccache: define the macro for the register shifts

Define the macro for the register shifts, it could make the code be
more readable

Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-7-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agosoc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes
Ben Dooks [Tue, 13 Sep 2022 06:18:15 +0000 (06:18 +0000)]
soc: sifive: ccache: use pr_fmt() to remove CCACHE: prefixes

Use the pr_fmt() macro to prefix all the output with "CCACHE:"
to avoid having to write it out each time, or make a large diff
when the next change comes along.

Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-6-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agosoc: sifive: ccache: reduce printing on init
Ben Dooks [Tue, 13 Sep 2022 06:18:14 +0000 (06:18 +0000)]
soc: sifive: ccache: reduce printing on init

The driver prints out 6 lines on startup, which can easily be redcued
to two lines without losing any information.

Note, to make the types work better, uint64_t has been replaced with
ULL to make the unsigned long long match the format in the print
statement.

Signed-off-by: Ben Dooks <ben.dooks@sifive.com>
Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-5-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agosoc: sifive: ccache: determine the cache level from dts
Zong Li [Tue, 13 Sep 2022 06:18:13 +0000 (06:18 +0000)]
soc: sifive: ccache: determine the cache level from dts

Composable cache could be L2 or L3 cache, use 'cache-level' property of
device node to determine the level.

Signed-off-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-4-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agosoc: sifive: ccache: Rename SiFive L2 cache to Composable cache.
Greentime Hu [Tue, 13 Sep 2022 06:18:12 +0000 (06:18 +0000)]
soc: sifive: ccache: Rename SiFive L2 cache to Composable cache.

Since composable cache may be L3 cache if there is a L2 cache, we should
use its original name composable cache to prevent confusion.

There are some new lines were generated due to adding the compatible
"sifive,ccache0" into ID table and indent requirement.

The sifive L2 has been renamed to sifive CCACHE, EDAC driver needs to
apply the change as well.

Signed-off-by: Greentime Hu <greentime.hu@sifive.com>
Signed-off-by: Zong Li <zong.li@sifive.com>
Co-developed-by: Zong Li <zong.li@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20220913061817.22564-3-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agodt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache
Zong Li [Tue, 13 Sep 2022 06:18:11 +0000 (06:18 +0000)]
dt-bindings: sifive-ccache: change Sifive L2 cache to Composable cache

Since composable cache may be L3 cache if private L2 cache exists, we
should use its original name Composable cache to prevent confusion.

Signed-off-by: Zong Li <zong.li@sifive.com>
Suggested-by: Conor Dooley <conor.dooley@microchip.com>
Suggested-by: Ben Dooks <ben.dooks@sifive.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220913061817.22564-2-zong.li@sifive.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2 years agoMerge tag 'docs-6.1-2' of git://git.lwn.net/linux
Linus Torvalds [Thu, 13 Oct 2022 17:58:32 +0000 (10:58 -0700)]
Merge tag 'docs-6.1-2' of git://git.lwn.net/linux

Pull documentation fixes from Jonathan Corbet:
 "A handful of relatively simple documentation fixes, plus a set of
  patches catching the Chinese translation up with the front-page
  rework"

* tag 'docs-6.1-2' of git://git.lwn.net/linux:
  Documentation: rtla: Correct command line example
  docs/zh_CN: add a man-pages link to zh_CN/index.rst
  docs/zh_CN: Rewrite the Chinese translation front page
  docs/zh_CN: add zh_CN/arch.rst
  docs/zh_CN: promote the title of zh_CN/process/index.rst
  docs/zh_CN: Update the translation of page_owner to 6.0-rc7
  docs/zh_CN: Update the translation of ksm to 6.0-rc7
  docs/howto: Replace abundoned URL of gmane.org
  Documentation: ubifs: Fix compression idiom
  Documentation/mm/page_owner.rst: delete frequently changing experimental data
  docs/zh_CN: Fix build warning
  docs: ftrace: Correct access mode