Commit Graph

1042675 Commits

Author SHA1 Message Date
Kefeng Wang d5935537c8
riscv: Improve stack randomisation on RV64
This enlarges the bits availiable for stack randomisation on RV64 from
the default of 8MiB to 1GiB, to match arm64 and x86.

Also, update the documentation to reflect our support for stack
randomisation.

Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
[Palmer: commit text]
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10 22:25:34 -07:00
Heinrich Schuchardt efe1e08bca
riscv: defconfig: enable NLS_CODEPAGE_437, NLS_ISO8859_1
The EFI system partition uses the FAT file system. Many distributions add
an entry in /etc/fstab for the ESP. We must ensure that mounting does not
fail.

The default code page for FAT is 437 (cf. CONFIG_FAT_DEFAULT_CODEPAGE).
The default IO character set is "iso8859-1" (cf. CONFIG_NLS_ISO8859_1).

So let's enable NLS_CODEPAGE_437 and NLS_ISO8859_1 in defconfig.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10 21:31:12 -07:00
Heinrich Schuchardt 3a87ff8912
riscv: defconfig: enable BLK_DEV_NVME
NVMe is a non-volatile storage media attached via PCIe.
As NVMe has much higher throughput than other block devices like
SATA it is a must have for RISC-V. Enable CONFIG_BLK_DEV_NVME.

The HiFive Unmatched is a board providing M.2 slots for NVMe drives.
Enable CONFIG_PCIE_FU740.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2021-09-10 21:31:05 -07:00
Thomas Gleixner c9871c800f Documentation: core-api/cpuhotplug: Rewrite the API section
Dave stumbled over the incomplete and confusing documentation of the CPU
hotplug API.

Rewrite it, add the missing function documentations and correct the
existing ones.

Reported-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210909123212.489059409@linutronix.de
2021-09-11 00:41:21 +02:00
Sebastian Andrzej Siewior 8c854303ce cpu/hotplug: Remove deprecated CPU-hotplug functions.
No users in tree use the deprecated CPU-hotplug functions anymore.

Remove them.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-39-bigeasy@linutronix.de
2021-09-11 00:41:21 +02:00
Sebastian Andrzej Siewior c122358ea1 thermal: Replace deprecated CPU-hotplug functions.
The functions get_online_cpus() and put_online_cpus() have been
deprecated during the CPU hotplug rework. They map directly to
cpus_read_lock() and cpus_read_unlock().

Replace deprecated CPU-hotplug functions with the official version.
The behavior remains unchanged.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210803141621.780504-20-bigeasy@linutronix.de
2021-09-11 00:41:21 +02:00
Thomas Gleixner c2f4954c2d Merge branch 'linus' into smp/urgent
Ensure that all usage sites of get/put_online_cpus() except for the
struggler in drivers/thermal are gone. So the last user and the deprecated
inlines can be removed.
2021-09-11 00:38:47 +02:00
Arnaldo Carvalho de Melo 218e7b775d perf bpf: Provide a weak btf__load_from_kernel_by_id() for older libbpf versions
The btf__get_from_id() function was deprecated in favour of
btf__load_from_kernel_by_id(), but it is still avaiable, so use it to
provide a weak function btf__load_from_kernel_by_id() for older libbpf
when building perf with LIBBPF_DYNAMIC=1, i.e. using the system's libbpf
package.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:32:04 -03:00
Arnaldo Carvalho de Melo 37ce9e4fc5 tools include UAPI: Update linux/mount.h copy
To pick the changes from:

  9ffb14ef61 ("move_mount: allow to add a mount into an existing group")

That ends up adding support for the new MOVE_MOUNT_SET_GROUP move_mount
flag.

  $ tools/perf/trace/beauty/move_mount_flags.sh > before
  $ cp include/uapi/linux/mount.h tools/include/uapi/linux/mount.h
  $ tools/perf/trace/beauty/move_mount_flags.sh > after
  $ diff -u before after
  --- before	2021-09-10 12:28:43.865279808 -0300
  +++ after	2021-09-10 12:28:50.183429184 -0300
  @@ -5,4 +5,5 @@
   	[ilog2(0x00000010) + 1] = "T_SYMLINKS",
   	[ilog2(0x00000020) + 1] = "T_AUTOMOUNTS",
   	[ilog2(0x00000040) + 1] = "T_EMPTY_PATH",
  +	[ilog2(0x00000100) + 1] = "SET_GROUP",
   };
  $

So now one can use it in --filter expressions for tracepoints.

This silences this perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/mount.h' differs from latest version at 'include/uapi/linux/mount.h'
  diff -u tools/include/uapi/linux/mount.h include/uapi/linux/mount.h

Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Pavel Tikhomirov <ptikhomirov@virtuozzo.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:15:22 -03:00
Arnaldo Carvalho de Melo 155ed9f1b5 perf beauty: Cover more flags in the move_mount syscall argument beautifier
Previously the regext expected MOVE_MOUNT_[FT]_*, but in the next patch
a flag that doesn't match that expression will be added, MOVE_MOUNT_SET_GROUP

To make this more future proof, take advantage of the fact that the only
one we don't need to cover is MOVE_MOUNT__MASK and use MOVE_MOUNT_[^_]+_*_.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:15:22 -03:00
Arnaldo Carvalho de Melo 2c3ef25c4a tools headers UAPI: Sync linux/prctl.h with the kernel sources
To pick the changes in:

  433c38f40f ("arm64: mte: change ASYNC and SYNC TCF settings into bitfields")
  e893bb1bb4 ("x86, prctl: Hook L1D flushing in via prctl")

That don't result in any changes in tooling:

  $ tools/perf/trace/beauty/prctl_option.sh > before
  $ cp include/uapi/linux/prctl.h tools/include/uapi/linux/prctl.h
  $ tools/perf/trace/beauty/prctl_option.sh > after
  $ diff -u before after
  $

Just silences this perf tools build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/prctl.h' differs from latest version at 'include/uapi/linux/prctl.h'
  diff -u tools/include/uapi/linux/prctl.h include/uapi/linux/prctl.h

Cc: Balbir Singh <sblbir@amazon.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Peter Collingbourne <pcc@google.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:15:22 -03:00
Arnaldo Carvalho de Melo f9f018e4d9 tools include UAPI: Sync sound/asound.h copy with the kernel sources
Picking the changes from:

  81be109349 ("ALSA: pcm: Add SNDRV_PCM_INFO_EXPLICIT_SYNC flag")

Which entails no changes in the tooling side as it doesn't introduce new
ioctls.

To silence this perf tools build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/sound/asound.h' differs from latest version at 'include/uapi/sound/asound.h'
  diff -u tools/include/uapi/sound/asound.h include/uapi/sound/asound.h

Cc: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:15:22 -03:00
Arnaldo Carvalho de Melo dfa00459c6 tools headers UAPI: Sync linux/kvm.h with the kernel sources
To pick the changes in:

  f95937ccf5 ("KVM: stats: Support linear and logarithmic histogram statistics")
  f0376edb1d ("KVM: arm64: Add ioctl to fetch/store tags in a guest")
  ea7fc1bb1c ("KVM: arm64: Introduce MTE VM feature")

That just rebuilds perf, as these patches don't add any new KVM ioctl to
be harvested for the the 'perf trace' ioctl syscall argument
beautifiers.

This is also by now used by tools/testing/selftests/kvm/, so that will
pick the new KVM_STATS_TYPE_LINEAR_HIST and KVM_STATS_TYPE_LOG_HIST
defines.

This silences this perf build warning:

  Warning: Kernel ABI header at 'tools/include/uapi/linux/kvm.h' differs from latest version at 'include/uapi/linux/kvm.h'
  diff -u tools/include/uapi/linux/kvm.h include/uapi/linux/kvm.h

Cc: Jing Zhang <jingzhangos@google.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Steven Price <steven.price@arm.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:15:22 -03:00
Arnaldo Carvalho de Melo 03d6f3fe54 tools headers UAPI: Sync x86's asm/kvm.h with the kernel sources
To pick the changes in:

  61e5f69ef0 ("KVM: x86: implement KVM_GUESTDBG_BLOCKIRQ")

That just rebuilds kvm-stat.c on x86, no change in functionality.

This silences these perf build warning:

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

Cc: Maxim Levitsky <mlevitsk@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:15:22 -03:00
Kim Phillips 291dcb98d7 perf report: Add support to print a textual representation of IBS raw sample data
Perf records IBS (Instruction Based Sampling) extra sample data when
'perf record --raw-samples' is used with an IBS-compatible event, on a
machine that supports IBS.  IBS support is indicated in
CPUID_Fn80000001_ECX bit #10.

Up until now, users have been able to see the extra sample data solely
in raw hex format using 'perf report --dump-raw-trace'.  From there,
users could decode the data either manually, or by using an external
script.

Enable the built-in 'perf report --dump-raw-trace' to do the decoding of
the extra sample data bits, so manual or external script decoding isn't
necessary.

Example usage:

  $ sudo perf record -c 10000001 -a --raw-samples -e ibs_fetch/rand_en=1/,ibs_op/cnt_ctl=1/ -C 0,1 taskset -c 0,1 7za b -mmt2 | perf report --dump-raw-trace

Stdout contains IBS Fetch samples, e.g.:

  ibs_fetch_ctl:	02170007ffffffff MaxCnt 1048560 Cnt 1048560 Lat     7 En 1 Val 1 Comp 1 IcMiss 0 PhyAddrValid 1 L1TlbPgSz 4KB L1TlbMiss 0 L2TlbMiss 0 RandEn 1 L2Miss 0
  IbsFetchLinAd:	000056016b2ead40
  IbsFetchPhysAd:	000000115cedfd40
  c_ibs_ext_ctl:	0000000000000000 IbsItlbRefillLat   0

..and IBS Op samples, e.g.:

  ibs_op_ctl:	0000009e009e8968 MaxCnt  10000000 En 1 Val 1 CntCtl 1=uOps CurCnt       158
  IbsOpRip:	000056016b2ea73d
  ibs_op_data:	00000000000b0002 CompToRetCtr     2 TagToRetCtr    11 BrnRet 0  RipInvalid 0 BrnFuse 0 Microcode 0
  ibs_op_data2:	0000000000000002 CacheHitSt 0=M-state RmtNode 0 DataSrc 2=Local node cache
  ibs_op_data3:	0000000000c60002 LdOp 0 StOp 1 DcL1TlbMiss 0 DcL2TlbMiss 0 DcL1TlbHit2M 0 DcL1TlbHit1G 0 DcL2TlbHit2M 0 DcMiss 0 DcMisAcc 0 DcWcMemAcc 0 DcUcMemAcc 0 DcLockedOp 0 DcMissNoMabAlloc 0 DcLinAddrValid 1 DcPhyAddrValid 1 DcL2TlbHit1G 0 L2Miss 0 SwPf 0 OpMemWidth  4 bytes OpDcMissOpenMemReqs  0 DcMissLat     0 TlbRefillLat     0
  IbsDCLinAd:	00007f133c319ce0
  IbsDCPhysAd:	0000000270485ce0

Committer notes:

Fixed up this:

  util/amd-sample-raw.c: In function ‘evlist__amd_sample_raw’:
  util/amd-sample-raw.c:125:42: error: ‘ bytes’ directive output may be truncated writing 6 bytes into a region of size between 4 and 7 [-Werror=format-truncation=]
    125 |                          " OpMemWidth %2d bytes", 1 << (reg.op_mem_width - 1));
        |                                          ^~~~~~
  In file included from /usr/include/stdio.h:866,
                   from util/amd-sample-raw.c:7:
  /usr/include/bits/stdio2.h:71:10: note: ‘__builtin___snprintf_chk’ output between 21 and 24 bytes into a destination of size 21
     71 |   return __builtin___snprintf_chk (__s, __n, __USE_FORTIFY_LEVEL - 1,
        |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     72 |                                    __glibc_objsize (__s), __fmt,
        |                                    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
     73 |                                    __va_arg_pack ());
        |                                    ~~~~~~~~~~~~~~~~~
  cc1: all warnings being treated as errors

As that %2d won't limit the number of chars to 2, just state that 2 is
the minimal width:

  $ cat printf.c
  #include <stdio.h>
  #include <stdlib.h>

  int main(int argc, char *argv[])
  {
  	char bf[64];
  	int len = snprintf(bf, sizeof(bf), "%2d", atoi(argv[1]));

  	printf("strlen(%s): %u\n", bf, len);

  	return 0;
  }
  $ ./printf 1
  strlen( 1): 2
  $ ./printf 12
  strlen(12): 2
  $ ./printf 123
  strlen(123): 3
  $ ./printf 1234
  strlen(1234): 4
  $ ./printf 12345
  strlen(12345): 5
  $ ./printf 123456
  strlen(123456): 6
  $

And since we probably don't want that output to be truncated, just
assume the worst case, as the compiler did, and add a few more chars to
that buffer.

Also use sizeof(var) instead of sizeof(dup-of-wanted-format-string) to
avoid bugs when changing one but not the other.

I also had to change this:

  -#include <asm/amd-ibs.h>
  +#include "../../arch/x86/include/asm/amd-ibs.h"

To make it build on other architectures, just like intel-pt does.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Link: https //lore.kernel.org/r/20210817221509.88391-4-kim.phillips@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:15:21 -03:00
Kim Phillips dde994dd54 perf report: Add tools/arch/x86/include/asm/amd-ibs.h
This is a tools/-side patch for the patch that adds the original copy
of the IBS header file, in arch/x86/include/asm/.

We also add an entry to check-headers.sh, so future changes continue
to be copied.

Committer notes:

Had to add this

  -#include <asm/msr-index.h>
  +#include "msr-index.h"

And change the check-headers.sh entry to ignore this line when diffing
with the original kernel header.

This is needed so that we can use 'perf report' on a perf.data with IBS
data on a !x86 system, i.e. building on ARM fails without this as there
is no asm/msr-index.h there.

This was done on the next patch in this series and is done for things
like Intel PT and ARM CoreSight.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Link: https //lore.kernel.org/r/20210817221509.88391-3-kim.phillips@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 18:13:20 -03:00
Linus Torvalds 926de8c432 Additional ACPI updates for 5.15-rc1
- Prevent a message about missing PRMT from being printed on systems
    that do not support PRM, which are the majority now (Aubrey Li).
 
  - Drop unnecessary header include from scan.c (Kari Argillander).
 
  - Update the list of ACPICA maintainers after recent departure of
    one of them (Rafael Wysocki).
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Merge tag 'acpi-5.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more ACPI updates from Rafael Wysocki:
 "These prevent a confusing PRMT-related message from being printed,
  drop an unnecessary header file include and update the list of ACPICA
  maintainers.

  Specifics:

   - Prevent a message about missing PRMT from being printed on systems
     that do not support PRM, which are the majority now (Aubrey Li).

   - Drop unnecessary header include from scan.c (Kari Argillander).

   - Update the list of ACPICA maintainers after recent departure of one
     of them (Rafael Wysocki)"

* tag 'acpi-5.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPICA: Update the list of maintainers
  ACPI: PRM: Find PRMT table before parsing it
  ACPI: scan: Remove unneeded header linux/nls.h
2021-09-10 13:29:04 -07:00
Linus Torvalds d6498af58f Additional power management updates for 5.15-rc1
- Make the HWP performance levels calibration on hybrid processors
    in intel_pstate more straightforward (Rafael Wysocki).
 
  - Prevent the PM core from leaving devices in suspend after a
    failing system-wide suspend transition in some cases when driver
    PM flags are used (Prasad Sodagudi).
 
  - Drop unused function argument from the dedicated wake IRQs
    handling code (Sergey Shtylyov).
 
  - Fix up Energy Model kerneldoc comments and include them in the
    Energy Model documentation (Lukasz Luba).
 
  - Use my kernel.org address in MAINTAINERS insead of the personal
    one (Rafael Wysocki).
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Merge tag 'pm-5.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull more power management updates from Rafael Wysocki:
 "These improve hybrid processors support in intel_pstate, fix an issue
  in the core devices PM code, clean up the handling of dedicated wake
  IRQs, update the Energy Model documentation and update MAINTAINERS.

  Specifics:

   - Make the HWP performance levels calibration on hybrid processors in
     intel_pstate more straightforward (Rafael Wysocki).

   - Prevent the PM core from leaving devices in suspend after a failing
     system-wide suspend transition in some cases when driver PM flags
     are used (Prasad Sodagudi).

   - Drop unused function argument from the dedicated wake IRQs handling
     code (Sergey Shtylyov).

   - Fix up Energy Model kerneldoc comments and include them in the
     Energy Model documentation (Lukasz Luba).

   - Use my kernel.org address in MAINTAINERS insead of the personal one
     (Rafael Wysocki)"

* tag 'pm-5.15-rc1-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  MAINTAINERS: Change Rafael's e-mail address
  PM: sleep: core: Avoid setting power.must_resume to false
  Documentation: power: include kernel-doc in Energy Model doc
  PM: EM: fix kernel-doc comments
  cpufreq: intel_pstate: hybrid: Rework HWP calibration
  ACPI: CPPC: Introduce cppc_get_nominal_perf()
  PM: sleep: wakeirq: drop useless parameter from dev_pm_attach_wake_irq()
2021-09-10 13:20:47 -07:00
Rob Herring 094b147c76 spi: dt-bindings: xilinx: Drop type reference on *-bits properties
Properties with standard unit suffixes such as '-bits' don't need a
type.

Cc: Mark Brown <broonie@kernel.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: linux-spi@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210910165945.2852999-1-robh@kernel.org
2021-09-10 14:54:27 -05:00
Rob Herring 9756712418 dt-bindings: More use 'enum' instead of 'oneOf' plus 'const' entries
'enum' is equivalent to 'oneOf' with a list of 'const' entries, but 'enum'
is more concise and yields better error messages.

Fix a couple more cases which have appeared.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Sean Paul <sean@poorly.run>
Cc: Mark Brown <broonie@kernel.org>
Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jonathan Marek <jonathan@marek.ca>
Cc: Aswath Govindraju <a-govindraju@ti.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: dri-devel@lists.freedesktop.org
Cc: freedreno@lists.freedesktop.org
Cc: linux-spi@vger.kernel.org
Cc: linux-watchdog@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Guenter Roeck <linux@roeck-us.net>
Acked-by: Mark Brown <broonie@kernel.org>
Link: https://lore.kernel.org/r/20210910165153.2843871-1-robh@kernel.org
2021-09-10 14:54:21 -05:00
Linus Torvalds e99f23c5bf arm64 fixes:
- Limit the linear region to 51-bit when KVM is running in nVHE mode
   otherwise, depending on the placement of the ID map, kernel-VA to
   hyp-VA translations may produce addresses that either conflict with
   other HYP mappings or generate addresses outside of the 52-bit
   addressable range.
 
 - Instruct kmemleak not to scan the memory reserved for kdump as this
   range is removed from the kernel linear map and therefore not
   accessible.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Limit the linear region to 51-bit when KVM is running in nVHE mode.

   Otherwise, depending on the placement of the ID map, kernel-VA to
   hyp-VA translations may produce addresses that either conflict with
   other HYP mappings or generate addresses outside of the 52-bit
   addressable range.

 - Instruct kmemleak not to scan the memory reserved for kdump as this
   range is removed from the kernel linear map and therefore not
   accessible.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: kdump: Skip kmemleak scan reserved memory for kdump
  arm64: mm: limit linear region to 51 bits for KVM in nVHE mode
2021-09-10 11:58:20 -07:00
Linus Torvalds 23ef827c1b parisc architecture fixes for kernel 5.15-rc1:
* Build warning fixes in Makefile and Dino PCI driver
 * Fix when sched_clock is marked unstable
 * Drop strnlen_user() in favour of generic version
 * Prevent kernel to write outside userspace signal stack
 * Remove CONFIG_SET_FS incl. KERNEL_DS and USER_DS from parisc and switch to
   __get/put_kernel_nofault()
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Merge tag 'for-5.15/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc fixes from Helge Deller:

 - Build warning fixes in Makefile and Dino PCI driver

 - Fix when sched_clock is marked unstable

 - Drop strnlen_user() in favour of generic version

 - Prevent kernel to write outside userspace signal stack

 - Remove CONFIG_SET_FS including KERNEL_DS and USER_DS from parisc and
   switch to __get/put_kernel_nofault()

* tag 'for-5.15/parisc-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Implement __get/put_kernel_nofault()
  parisc: Mark sched_clock unstable only if clocks are not syncronized
  parisc: Move pci_dev_is_behind_card_dino to where it is used
  parisc: Reduce sigreturn trampoline to 3 instructions
  parisc: Check user signal stack trampoline is inside TASK_SIZE
  parisc: Drop useless debug info and comments from signal.c
  parisc: Drop strnlen_user() in favour of generic version
  parisc: Add missing FORCE prerequisite in Makefile
2021-09-10 11:52:01 -07:00
Linus Torvalds 589e5cab17 IOMMU Fixes for v5.15-rc1
Including:
 
 	- Intel VT-d:
 	  - PASID leakage in intel_svm_unbind_mm();
 	  - Deadlock in intel_svm_drain_prq().
 
 	- AMD IOMMU: Fixes for an unhandled page-fault bug when AVIC is used
 	  for a KVM guest.
 
 	- Make CONFIG_IOMMU_DEFAULT_DMA_LAZY architecture instead of IOMMU
 	  driver dependent
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Merge tag 'iommu-fixes-v5.15-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Intel VT-d:
     - PASID leakage in intel_svm_unbind_mm()
     - Deadlock in intel_svm_drain_prq()

 - AMD IOMMU: Fixes for an unhandled page-fault bug when AVIC is used
   for a KVM guest.

 - Make CONFIG_IOMMU_DEFAULT_DMA_LAZY architecture instead of IOMMU
   driver dependent

* tag 'iommu-fixes-v5.15-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu: Clarify default domain Kconfig
  iommu/vt-d: Fix a deadlock in intel_svm_drain_prq()
  iommu/vt-d: Fix PASID leak in intel_svm_unbind_mm()
  iommu/amd: Remove iommu_init_ga()
  iommu/amd: Relocate GAMSup check to early_enable_iommus
2021-09-10 11:42:03 -07:00
Linus Torvalds 5ffc06ebea Misc driver patches for 5.15-rc1, second round
Here is a second round of misc driver patches for 5.15-rc1.
 
 In here is only updates for the Habanalabs driver.  This request is late
 because the previously-objected-to dma-buf patches are all removed and
 some fixes that you and others found are now included in here as well.
 
 All of these have been in linux-next for well over a week with no
 reports of problems, and they are all self-contained to only this one
 driver.  Full details are in the shortlog.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull habanalabs updates from Greg KH:
 "Here is another round of misc driver patches for 5.15-rc1.

  In here is only updates for the Habanalabs driver. This request is
  late because the previously-objected-to dma-buf patches are all
  removed and some fixes that you and others found are now included in
  here as well.

  All of these have been in linux-next for well over a week with no
  reports of problems, and they are all self-contained to only this one
  driver. Full details are in the shortlog"

* tag 'char-misc-5.15-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (61 commits)
  habanalabs/gaudi: hwmon default card name
  habanalabs: add support for f/w reset
  habanalabs/gaudi: block ICACHE_BASE_ADDERESS_HIGH in TPC
  habanalabs: cannot sleep while holding spinlock
  habanalabs: never copy_from_user inside spinlock
  habanalabs: remove unnecessary device status check
  habanalabs: disable IRQ in user interrupts spinlock
  habanalabs: add "in device creation" status
  habanalabs/gaudi: invalidate PMMU mem cache on init
  habanalabs/gaudi: size should be printed in decimal
  habanalabs/gaudi: define DC POWER for secured PMC
  habanalabs/gaudi: unmask out of bounds SLM access interrupt
  habanalabs: add userptr_lookup node in debugfs
  habanalabs/gaudi: fetch TPC/MME ECC errors from F/W
  habanalabs: modify multi-CS to wait on stream masters
  habanalabs/gaudi: add monitored SOBs to state dump
  habanalabs/gaudi: restore user registers when context opens
  habanalabs/gaudi: increase boot fit timeout
  habanalabs: update to latest firmware headers
  habanalabs/gaudi: minimize number of register reads
  ...
2021-09-10 11:31:47 -07:00
Rafael J. Wysocki 8fbc1c5b91 Merge branches 'acpi-scan' and 'acpi-prm'
* acpi-scan:
  ACPI: scan: Remove unneeded header linux/nls.h

* acpi-prm:
  ACPI: PRM: Find PRMT table before parsing it
2021-09-10 20:27:07 +02:00
Rafael J. Wysocki be2d24336f Merge branches 'pm-cpufreq', 'pm-sleep' and 'pm-em'
* pm-cpufreq:
  cpufreq: intel_pstate: hybrid: Rework HWP calibration
  ACPI: CPPC: Introduce cppc_get_nominal_perf()

* pm-sleep:
  PM: sleep: core: Avoid setting power.must_resume to false
  PM: sleep: wakeirq: drop useless parameter from dev_pm_attach_wake_irq()

* pm-em:
  Documentation: power: include kernel-doc in Energy Model doc
  PM: EM: fix kernel-doc comments
2021-09-10 20:26:08 +02:00
Linus Torvalds a668acb8f0 drm fixes for 5.15-rc1
ttm:
 - Fix ttm_bo_move_memcpy() when ttm_resource is subclassed.
 - Fix ttm deadlock if target BO isn't idle
 - ttm build fix
 - ttm docs fix
 
 dma-buf:
 - config option fixes
 
 fbdev:
 - limit resolutions to avoid int overflow
 
 i915:
 - stddef change.
 
 amdgpu:
 - Misc cleanups, typo fixes
 - EEPROM fix
 - Add some new PCI IDs
 - Scatter/Gather display support for Yellow Carp
 - PCIe DPM fix for RKL platforms
 - RAS fix
 
 amdkfd:
 - SVM fix
 
 vc4:
 - static function fix
 
 mgag200:
 - fix uninit var
 
 panfrost:
 - lock_region fixes
 
  - Make some dma-buf config options depend on DMA_SHARED_BUFFER.
     - Handle multiplication overflow of fbdev xres/yres in the core.
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Merge tag 'drm-next-2021-09-10' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Just an initial bunch of fixes for the merge window, amdgpu is most of
  them with a few ttm fixes and an fbdev avoid multiply overflow fix.

  core:
   - Make some dma-buf config options depend on DMA_SHARED_BUFFER
   - Handle multiplication overflow of fbdev xres/yres in the core

  ttm:
   - Fix ttm_bo_move_memcpy() when ttm_resource is subclassed
   - Fix ttm deadlock if target BO isn't idle
   - ttm build fix
   - ttm docs fix

  dma-buf:
   - config option fixes

  fbdev:
   - limit resolutions to avoid int overflow

  i915:
   - stddef change.

  amdgpu:
   - Misc cleanups, typo fixes
   - EEPROM fix
   - Add some new PCI IDs
   - Scatter/Gather display support for Yellow Carp
   - PCIe DPM fix for RKL platforms
   - RAS fix

  amdkfd:
   - SVM fix

  vc4:
   - static function fix

  mgag200:
   - fix uninit var

  panfrost:
   - lock_region fixes"

* tag 'drm-next-2021-09-10' of git://anongit.freedesktop.org/drm/drm: (36 commits)
  drm/ttm: Fix a deadlock if the target BO is not idle during swap
  fbmem: don't allow too huge resolutions
  dma-buf: DMABUF_SYSFS_STATS should depend on DMA_SHARED_BUFFER
  dma-buf: DMABUF_DEBUG should depend on DMA_SHARED_BUFFER
  drm/i915: use linux/stddef.h due to "isystem: trim/fixup stdarg.h and other headers"
  dma-buf: DMABUF_MOVE_NOTIFY should depend on DMA_SHARED_BUFFER
  drm/amdkfd: drop process ref count when xnack disable
  drm/amdgpu: enable more pm sysfs under SRIOV 1-VF mode
  drm/amdgpu: fix fdinfo race with process exit
  drm/amdgpu: Fix a deadlock if previous GEM object allocation fails
  drm/amdgpu: stop scheduler when calling hw_fini (v2)
  drm/amdgpu: Clear RAS interrupt status on aldebaran
  drm/amd/display: Initialize lt_settings on instantiation
  drm/amd/display: cleanup idents after a revert
  drm/amd/display: Fix memory leak reported by coverity
  drm/ttm: Fix ttm_bo_move_memcpy() for subclassed struct ttm_resource
  drm/amdgpu/swsmu: fix spelling mistake "minimun" -> "minimum"
  drm/amdgpu: Disable PCIE_DPM on Intel RKL Platform
  drm/amdgpu: show both cmd id and name when psp cmd failed
  drm/amd/display: setup system context for APUs
  ...
2021-09-10 11:22:23 -07:00
Amir Goldstein 4396a73115 fsnotify: fix sb_connectors leak
Fix a leak in s_fsnotify_connectors counter in case of a race between
concurrent add of new fsnotify mark to an object.

The task that lost the race fails to drop the counter before freeing
the unused connector.

Following umount() hangs in fsnotify_sb_delete()/wait_var_event(),
because s_fsnotify_connectors never drops to zero.

Fixes: ec44610fe2 ("fsnotify: count all objects with attached connectors")
Reported-by: Murphy Zhou <jencce.kernel@gmail.com>
Link: https://lore.kernel.org/linux-fsdevel/20210907063338.ycaw6wvhzrfsfdlp@xzhoux.usersys.redhat.com/
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-09-10 09:46:48 -07:00
Saravana Kannan 4a48b66b3f of: property: Disable fw_devlink DT support for X86
Andre reported fw_devlink=on breaking OLPC XO-1.5 [1].

OLPC XO-1.5 is an X86 system that uses a mix of ACPI and OF to populate
devices. The root cause seems to be ISA devices not setting their fwnode
field. But trying to figure out how to fix that doesn't seem worth the
trouble because the OLPC devicetree is very sparse/limited and fw_devlink
only adds the links causing this issue. Considering that there aren't many
users of OF in an X86 system, simply fw_devlink DT support for X86.

[1] - https://lore.kernel.org/lkml/3c1f2473-92ad-bfc4-258e-a5a08ad73dd0@web.de/

Fixes: ea718c6990 ("Revert "Revert "driver core: Set fw_devlink=on by default""")
Signed-off-by: Saravana Kannan <saravanak@google.com>
Cc: Andre Muller <andre.muller@web.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Tested-by: Andre Müller <andre.muller@web.de>
Link: https://lore.kernel.org/r/20210910011446.3208894-1-saravanak@google.com
Signed-off-by: Rob Herring <robh@kernel.org>
2021-09-10 11:21:49 -05:00
Kees Cook 3a3a11e6e5 lkdtm: Use init_uts_ns.name instead of macros
Using generated/compile.h triggered a full LKDTM rebuild with every
build. Avoid this by using the exported strings instead.

Fixes: b8661450bc ("lkdtm: Add kernel version to failure hints")
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20210901233406.2571643-1-keescook@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2021-09-10 17:09:40 +02:00
Kim Phillips 9fe8895a27 perf env: Add perf_env__cpuid, perf_env__{nr_}pmu_mappings
To be used by IBS raw data display: It needs the recorder's cpuid in
order to determine which errata workarounds to apply to the data, and
the pmu_mappings are needed in order to figure out which PMU sample
type is IBS Fetch vs. IBS Op.

When not available from perf.data, we assume local operation, and
retrieve cpuid and pmu mappings directly from the running system.

Signed-off-by: Kim Phillips <kim.phillips@amd.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Petlan <mpetlan@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Robert Richter <robert.richter@amd.com>
Cc: Stephane Eranian <eranian@google.com>
Link: https //lore.kernel.org/r/20210817221509.88391-2-kim.phillips@amd.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 11:45:19 -03:00
Remi Bernon d2930ede52 perf symbol: Look for ImageBase in PE file to compute .text offset
Instead of using the file offset in the debug file.

This fixes a regression from 00a3423492 ("perf symbols: Make
dso__load_bfd_symbols() load PE files from debug cache only"), causing
incorrect symbol resolution when debug file have been stripped from
non-debug sections (in which case its .text section is empty and doesn't
have any file position).

The debug files could also be created with a different file alignment,
and have different file positions from the mmap-ed binary, or have the
section reordered.

This instead looks for the file image base, using the corresponding bfd
*ABS* symbols. As PE symbols only have 4 bytes, it also needs to keep
.text section vma high bits.

Signed-off-by: Remi Bernon <rbernon@codeweavers.com>
Fixes: 00a3423492 ("perf symbols: Make dso__load_bfd_symbols() load PE files from debug cache only")
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Nicholas Fraser <nfraser@codeweavers.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210909192637.4139125-1-rbernon@codeweavers.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 11:45:19 -03:00
Michael Petlan 51ae7fa62d perf scripts python: Fix passing arguments to stackcollapse report
The '--' prevented arguments from being passed to the script, such as:

  $ perf script report stackcollapse -i my_perf.data

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
LPU-Reference: 20200427142327.21172-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 11:45:19 -03:00
Michael Petlan 3e11300cdf perf test: Fix bpf test sample mismatch reporting
When the expected sample count in the condition changed, the message
needs to be changed too, otherwise we'll get:

  0x1001f2091d8: mmap mask[0]:
  BPF filter result incorrect, expected 56, got 56 samples

Fixes: 4b04e0decd ("perf test: Fix basic bpf filtering test")
Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Sumanth Korikkar <sumanthk@linux.ibm.com>
Link: https //lore.kernel.org/r/20210805160611.5542-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 11:45:19 -03:00
Arnaldo Carvalho de Melo 64f4535166 tools headers UAPI: Sync files changed by new process_mrelease syscall and the removal of some compat entry points
To pick the changes in these csets:

  59ab844eed ("compat: remove some compat entry points")
  dce4910396 ("mm: wire up syscall process_mrelease")
  b48c7236b1 ("exit/bdflush: Remove the deprecated bdflush system call")

That add support for this new syscall in tools such as 'perf trace'.

For instance, this is now possible:

  # perf trace -v -e process_mrelease
  event qualifier tracepoint filter: (common_pid != 19351 && common_pid != 9112) && (id == 448)
  ^C#

That is the filter expression attached to the raw_syscalls:sys_{enter,exit}
tracepoints.

  $ grep process_mrelease tools/perf/arch/x86/entry/syscalls/syscall_64.tbl
  448    common  process_mrelease            sys_process_mrelease
  $

This addresses these perf build warnings:

  Warning: Kernel ABI header at 'tools/include/uapi/asm-generic/unistd.h' differs from latest version at 'include/uapi/asm-generic/unistd.h'
  diff -u tools/include/uapi/asm-generic/unistd.h include/uapi/asm-generic/unistd.h
  Warning: Kernel ABI header at 'tools/perf/arch/x86/entry/syscalls/syscall_64.tbl' differs from latest version at 'arch/x86/entry/syscalls/syscall_64.tbl'
  diff -u tools/perf/arch/x86/entry/syscalls/syscall_64.tbl arch/x86/entry/syscalls/syscall_64.tbl
  Warning: Kernel ABI header at 'tools/perf/arch/powerpc/entry/syscalls/syscall.tbl' differs from latest version at 'arch/powerpc/kernel/syscalls/syscall.tbl'
  diff -u tools/perf/arch/powerpc/entry/syscalls/syscall.tbl arch/powerpc/kernel/syscalls/syscall.tbl
  Warning: Kernel ABI header at 'tools/perf/arch/s390/entry/syscalls/syscall.tbl' differs from latest version at 'arch/s390/kernel/syscalls/syscall.tbl'
  diff -u tools/perf/arch/s390/entry/syscalls/syscall.tbl arch/s390/kernel/syscalls/syscall.tbl
  Warning: Kernel ABI header at 'tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl' differs from latest version at 'arch/mips/kernel/syscalls/syscall_n64.tbl'
  diff -u tools/perf/arch/mips/entry/syscalls/syscall_n64.tbl arch/mips/kernel/syscalls/syscall_n64.tbl

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 11:45:07 -03:00
Arnaldo Carvalho de Melo bb91de4469 perf beauty: Update copy of linux/socket.h with the kernel sources
To pick the changes in:

Fixes: d32f89da7f ("net: add accept helper not installing fd")
Fixes: bc49d8169a ("mctp: Add MCTP base")

This automagically adds support for the AF_MCTP protocol domain:

  $ tools/perf/trace/beauty/socket.sh > before
  $ cp include/linux/socket.h tools/perf/trace/beauty/include/linux/socket.h
  $ tools/perf/trace/beauty/socket.sh > after
  $ diff -u before after
  --- before	2021-09-06 11:57:14.972747200 -0300
  +++ after	2021-09-06 11:57:30.541920222 -0300
  @@ -44,4 +44,5 @@
   	[42] = "QIPCRTR",
   	[43] = "SMC",
   	[44] = "XDP",
  +	[45] = "MCTP",
   };
  $

This will allow 'perf trace' to translate 45 into "MCTP" as is done with
the other domains:

  # perf trace -e socket*
     0.000 chronyd/1029 socket(family: INET, type: DGRAM|CLOEXEC|NONBLOCK, protocol: IP) = 4
  ^C#

This addresses this perf build warning:

  Warning: Kernel ABI header at 'tools/perf/trace/beauty/include/linux/socket.h' differs from latest version at 'include/linux/socket.h'
  diff -u tools/perf/trace/beauty/include/linux/socket.h include/linux/socket.h

Cc: David S. Miller <davem@davemloft.net>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Jeremy Kerr <jk@codeconstruct.com.au>
Cc: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2021-09-10 10:42:49 -03:00
Rafael J. Wysocki 3d53afea52 MAINTAINERS: Change Rafael's e-mail address
I have been slow to respond to messages going to rjw@rjwysocki.net
recently, so change it to rafael@kernel.org (which works better for
me) in MAINTAINERS.

Signed-off-by: Rafael J. Wysocki <rafael@kernel.org>
2021-09-10 14:45:57 +02:00
Rafael J. Wysocki 22d692baba ACPICA: Update the list of maintainers
Erik Kaneda will not be maintaining ACPICA any more, so drop his
address (which doesn't work any more anyway) from the maintainer
list.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2021-09-10 14:42:51 +02:00
Hao Xu 32c2d33e0b io_uring: fix off-by-one in BUILD_BUG_ON check of __REQ_F_LAST_BIT
Build check of __REQ_F_LAST_BIT should be larger than, not equal or larger
than. It's perfectly valid to have __REQ_F_LAST_BIT be 32, as that means
that the last valid bit is 31 which does fit in the type.

Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Link: https://lore.kernel.org/r/20210907032243.114190-1-haoxu@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2021-09-10 06:24:51 -06:00
Chen Wandun 85f58eb188 arm64: kdump: Skip kmemleak scan reserved memory for kdump
Trying to boot with kdump + kmemleak, command will result in a crash:
"echo scan > /sys/kernel/debug/kmemleak"

crashkernel reserved: 0x0000000007c00000 - 0x0000000027c00000 (512 MB)
Kernel command line: BOOT_IMAGE=(hd1,gpt2)/vmlinuz-5.14.0-rc5-next-20210809+ root=/dev/mapper/ao-root ro rd.lvm.lv=ao/root rd.lvm.lv=ao/swap crashkernel=512M
Unable to handle kernel paging request at virtual address ffff000007c00000
Mem abort info:
  ESR = 0x96000007
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
  FSC = 0x07: level 3 translation fault
Data abort info:
  ISV = 0, ISS = 0x00000007
  CM = 0, WnR = 0
swapper pgtable: 64k pages, 48-bit VAs, pgdp=00002024f0d80000
[ffff000007c00000] pgd=1800205ffffd0003, p4d=1800205ffffd0003, pud=1800205ffffd0003, pmd=1800205ffffc0003, pte=0068000007c00f06
Internal error: Oops: 96000007 [#1] SMP
pstate: 804000c9 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : scan_block+0x98/0x230
lr : scan_block+0x94/0x230
sp : ffff80008d6cfb70
x29: ffff80008d6cfb70 x28: 0000000000000000 x27: 0000000000000000
x26: 00000000000000c0 x25: 0000000000000001 x24: 0000000000000000
x23: ffffa88a6b18b398 x22: ffff000007c00ff9 x21: ffffa88a6ac7fc40
x20: ffffa88a6af6a830 x19: ffff000007c00000 x18: 0000000000000000
x17: 0000000000000000 x16: 0000000000000000 x15: ffffffffffffffff
x14: ffffffff00000000 x13: ffffffffffffffff x12: 0000000000000020
x11: 0000000000000000 x10: 0000000001080000 x9 : ffffa88a6951c77c
x8 : ffffa88a6a893988 x7 : ffff203ff6cfb3c0 x6 : ffffa88a6a52b3c0
x5 : ffff203ff6cfb3c0 x4 : 0000000000000000 x3 : 0000000000000000
x2 : 0000000000000001 x1 : ffff20226cb56a40 x0 : 0000000000000000
Call trace:
 scan_block+0x98/0x230
 scan_gray_list+0x120/0x270
 kmemleak_scan+0x3a0/0x648
 kmemleak_write+0x3ac/0x4c8
 full_proxy_write+0x6c/0xa0
 vfs_write+0xc8/0x2b8
 ksys_write+0x70/0xf8
 __arm64_sys_write+0x24/0x30
 invoke_syscall+0x4c/0x110
 el0_svc_common+0x9c/0x190
 do_el0_svc+0x30/0x98
 el0_svc+0x28/0xd8
 el0t_64_sync_handler+0x90/0xb8
 el0t_64_sync+0x180/0x184

The reserved memory for kdump will be looked up by kmemleak, this area
will be set invalid when kdump service is bring up. That will result in
crash when kmemleak scan this area.

Fixes: a7259df767 ("memblock: make memblock_find_in_range method private")
Signed-off-by: Chen Wandun <chenwandun@huawei.com>
Reviewed-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Reviewed-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20210910064844.3827813-1-chenwandun@huawei.com
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-09-10 11:58:59 +01:00
xinhui pan 70982eef4d drm/ttm: Fix a deadlock if the target BO is not idle during swap
The ret value might be -EBUSY, caller will think lru lock is still
locked but actually NOT. So return -ENOSPC instead. Otherwise we hit
list corruption.

ttm_bo_cleanup_refs might fail too if BO is not idle. If we return 0,
caller(ttm_tt_populate -> ttm_global_swapout ->ttm_device_swapout) will
be stuck as we actually did not free any BO memory. This usually happens
when the fence is not signaled for a long time.

Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Fixes: ebd59851c7 ("drm/ttm: move swapout logic around v3")
Link: https://patchwork.freedesktop.org/patch/msgid/20210907040832.1107747-1-xinhui.pan@amd.com
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2021-09-10 16:18:53 +10:00
Dave Airlie b011522c8a drm-misc-next-fixes for v5.15:
- Make some dma-buf config options depend on DMA_SHARED_BUFFER.
 - Handle multiplication overflow of fbdev xres/yres in the core.
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Merge tag 'drm-misc-next-fixes-2021-09-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next-fixes for v5.15:
- Make some dma-buf config options depend on DMA_SHARED_BUFFER.
- Handle multiplication overflow of fbdev xres/yres in the core.

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

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/37c5fe2e-5be8-45c3-286b-d8d536a5cef2@linux.intel.com
2021-09-10 14:18:49 +10:00
Linus Torvalds bf9f243f23 19 ksmbd fixes, including various fixes pointed out by coverity, id mapping fixes, and some SMB direct fixes
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Merge tag '5.15-rc-ksmbd-part2' of git://git.samba.org/ksmbd

Pull ksmbd fixes from Steve French:

 - various fixes pointed out by coverity, and a minor cleanup patch

 - id mapping and ownership fixes

 - an smbdirect fix

* tag '5.15-rc-ksmbd-part2' of git://git.samba.org/ksmbd:
  ksmbd: fix control flow issues in sid_to_id()
  ksmbd: fix read of uninitialized variable ret in set_file_basic_info
  ksmbd: add missing assignments to ret on ndr_read_int64 read calls
  ksmbd: add validation for ndr read/write functions
  ksmbd: remove unused ksmbd_file_table_flush function
  ksmbd: smbd: fix dma mapping error in smb_direct_post_send_data
  ksmbd: Reduce error log 'speed is unknown' to debug
  ksmbd: defer notify_change() call
  ksmbd: remove setattr preparations in set_file_basic_info()
  ksmbd: ensure error is surfaced in set_file_basic_info()
  ndr: fix translation in ndr_encode_posix_acl()
  ksmbd: fix translation in sid_to_id()
  ksmbd: fix subauth 0 handling in sid_to_id()
  ksmbd: fix translation in acl entries
  ksmbd: fix translation in ksmbd_acls_fattr()
  ksmbd: fix translation in create_posix_rsp_buf()
  ksmbd: fix translation in smb2_populate_readdir_entry()
  ksmbd: fix lookup on idmapped mounts
2021-09-09 16:17:14 -07:00
Masami Hiramatsu 5dfe50b055 bootconfig: Rename xbc_node_find_child() to xbc_node_find_subkey()
Rename xbc_node_find_child() to xbc_node_find_subkey() for
clarifying that function returns a key node (no value node).
Since there are xbc_node_for_each_child() (loop on all child
nodes) and xbc_node_for_each_subkey() (loop on only subkey
nodes), this name distinction is necessary to avoid confusing
users.

Link: https://lkml.kernel.org/r/163119459826.161018.11200274779483115300.stgit@devnote2

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2021-09-09 19:14:33 -04:00
Masami Hiramatsu 5f8895b27d tracing/boot: Fix to check the histogram control param is a leaf node
Since xbc_node_find_child() doesn't ensure the returned node
is a leaf node (key-value pair or do not have subkeys),
use xbc_node_find_value to ensure the histogram control
parameter is a leaf node in trace_boot_compose_hist_cmd().

Link: https://lkml.kernel.org/r/163119459059.161018.18341288218424528962.stgit@devnote2

Fixes: e66ed86ca6 ("tracing/boot: Add per-event histogram action options")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2021-09-09 19:14:33 -04:00
Masami Hiramatsu a3928f877e tracing/boot: Fix trace_boot_hist_add_array() to check array is value
trace_boot_hist_add_array() uses the combination of
xbc_node_find_child() and xbc_node_get_child() to get the
child node of the key node. But since it missed to check
the child node is data node or not, user can pass the
subkey node for the array node (anode).
To avoid this issue, check the array node is a data node.
Actually, there is xbc_node_find_value(node, key, vnode),
which ensures the @vnode is a value node, so use it in
trace_boot_hist_add_array() to fix this issue.

Link: https://lkml.kernel.org/r/163119458308.161018.1516455973625940212.stgit@devnote2

Fixes: e66ed86ca6 ("tracing/boot: Add per-event histogram action options")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2021-09-09 19:14:33 -04:00
Linus Torvalds 8dde20867c for-5.15-tag
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Merge tag 'for-5.15-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - fix max_inline mount option limit on 64k page system

 - lockdep fixes:
     - update bdev time in a safer way
     - move bdev put outside of sb write section when removing device
     - fix possible deadlock when mounting seed/sprout filesystem

 - zoned mode: fix split extent accounting

 - minor include fixup

* tag 'for-5.15-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: zoned: fix double counting of split ordered extent
  btrfs: fix lockdep warning while mounting sprout fs
  btrfs: delay blkdev_put until after the device remove
  btrfs: update the bdev time directly when closing
  btrfs: use correct header for div_u64 in misc.h
  btrfs: fix upper limit for max_inline for page size 64K
2021-09-09 16:09:56 -07:00
Linus Torvalds ae79394a62 sound fixes for 5.15-rc1
A collection of small fixes that have been gathered before rc1,
 including a few regression fixes for the problem in the previous
 pull request.
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Merge tag 'sound-fix-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes that have been gathered before rc1,
  including a few regression fixes for the problem in the previous pull
  request"

* tag 'sound-fix-5.15-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: gus: Fix repeated probe for ISA interwave card
  ALSA: gus: Fix repeated probes of snd_gus_create()
  ALSA: vx222: fix null-ptr-deref
  ASoC: rockchip: i2s: Fix concurrency between tx/rx
  ASoC: mt8195: correct the dts parsing logic about DPTX and HDMITX
  ASoC: Intel: boards: Fix CONFIG_SND_SOC_SDW_MOCKUP select
  ASoC: dt-bindings: fsl_rpmsg: Add compatible string for i.MX8ULP
  ALSA: usb-audio: Add registration quirk for JBL Quantum 800
  ASoC: rt5682: fix headset background noise when S3 state
  ASoC: dt-bindings: mt8195: remove dependent headers in the example
  ASoC: mediatek: SND_SOC_MT8195 should depend on ARCH_MEDIATEK
  ASoC: samsung: s3c24xx_simtec: fix spelling mistake "devicec" -> "device"
  ASoC: audio-graph: respawn Platform Support
  ASoC: mediatek: mt8195: add MTK_PMIC_WRAP dependency
2021-09-09 16:05:10 -07:00
Enzo Matsumiya 9351590f51 cifs: properly invalidate cached root handle when closing it
Cached root file was not being completely invalidated sometimes.

Reproducing:
- With a DFS share with 2 targets, one disabled and one enabled
- start some I/O on the mount
  # while true; do ls /mnt/dfs; done
- at the same time, disable the enabled target and enable the disabled
  one
- wait for DFS cache to expire
- on reconnect, the previous cached root handle should be invalid, but
  open_cached_dir_by_dentry() will still try to use it, but throws a
  use-after-free warning (kref_get())

Make smb2_close_cached_fid() invalidate all fields every time, but only
send an SMB2_close() when the entry is still valid.

Signed-off-by: Enzo Matsumiya <ematsumiya@suse.de>
Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
2021-09-09 17:34:38 -05:00
Helge Deller 6710287280 parisc: Implement __get/put_kernel_nofault()
Remove CONFIG_SET_FS from parisc, so we need to add
__get_kernel_nofault() and __put_kernel_nofault(), define
HAVE_GET_KERNEL_NOFAULT and remove set_fs(), get_fs(), load_sr2(),
thread_info->addr_limit, KERNEL_DS and USER_DS.

The nice side-effect of this patch is that we now can directly access
userspace via sr3 without the need to use a temporary sr2 which is
either copied from sr3 or set to zero (for kernel space).

Signed-off-by: Helge Deller <deller@gmx.de>
Suggested-by: Arnd Bergmann <arnd@kernel.org>
2021-09-09 22:53:09 +02:00