Commit Graph

1072981 Commits

Author SHA1 Message Date
Arnd Bergmann
25b67f373b TEE shared memory cleanup for v5.18
- The TEE shared memory pool based on two pools is replaced with a single
   somewhat more capable pool.
 - Replaces tee_shm_alloc() and tee_shm_register() with new functions
   easier to use and maintain.  The TEE subsystem and the TEE drivers are
   updated to use the new functions instead.
 - The TEE based Trusted keys routines are updated to use the new
   simplified functions above.
 - The OP-TEE based rng driver is updated to use the new simplified
   functions above.
 - The TEE_SHM-flags are refactored to better match their usage
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Merge tag 'tee-shm-for-v5.18' of git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers

TEE shared memory cleanup for v5.18

- The TEE shared memory pool based on two pools is replaced with a single
  somewhat more capable pool.
- Replaces tee_shm_alloc() and tee_shm_register() with new functions
  easier to use and maintain.  The TEE subsystem and the TEE drivers are
  updated to use the new functions instead.
- The TEE based Trusted keys routines are updated to use the new
  simplified functions above.
- The OP-TEE based rng driver is updated to use the new simplified
  functions above.
- The TEE_SHM-flags are refactored to better match their usage

* tag 'tee-shm-for-v5.18' of git://git.linaro.org:/people/jens.wiklander/linux-tee:
  tee: refactor TEE_SHM_* flags
  tee: replace tee_shm_register()
  KEYS: trusted: tee: use tee_shm_register_kernel_buf()
  tee: add tee_shm_register_{user,kernel}_buf()
  optee: add optee_pool_op_free_helper()
  tee: replace tee_shm_alloc()
  tee: simplify shm pool handling
  tee: add tee_shm_alloc_user_buf()
  tee: remove unused tee_shm_pool_alloc_res_mem()
  hwrng: optee-rng: use tee_shm_alloc_kernel_buf()
  optee: use driver internal tee_context for some rpc

Link: https://lore.kernel.org/r/20220218184802.GA968155@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-25 17:05:11 +01:00
Arnd Bergmann
bc5ede20b8 Small simplification in AMDTE driver
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Merge tag 'amdtee-for-v5.18' of git://git.linaro.org:/people/jens.wiklander/linux-tee into arm/drivers

Small simplification in AMDTE driver

* tag 'amdtee-for-v5.18' of git://git.linaro.org:/people/jens.wiklander/linux-tee:
  tee: amdtee: Make use of the helper macro LIST_HEAD()

Link: https://lore.kernel.org/r/20220218175632.GA926082@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-25 17:05:01 +01:00
Arnd Bergmann
f289f1d8a4 Renesas driver updates for v5.18 (take two)
- RZ/G2L and RZ/V2L need PM and PM_GENERIC_DOMAINS,
   - Introduce ARCH_RZG2L family for RZ/G2L, RZ/G2LC, RZ/G2UL and RZ/V2L
     SoCs.
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Merge tag 'renesas-drivers-for-v5.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.18 (take two)

  - RZ/G2L and RZ/V2L need PM and PM_GENERIC_DOMAINS,
  - Introduce ARCH_RZG2L family for RZ/G2L, RZ/G2LC, RZ/G2UL and RZ/V2L
    SoCs.

* tag 'renesas-drivers-for-v5.18-tag2' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: Kconfig: Introduce ARCH_RZG2L config option
  soc: renesas: Kconfig: Explicitly select PM and PM_GENERIC_DOMAINS configs

Link: https://lore.kernel.org/r/cover.1645784470.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-25 17:04:50 +01:00
Arnd Bergmann
15cc8d030c Renesas driver updates for v5.18
- Initial support for the new RZ/V2L SoC,
   - RZ/G2L product revision support.
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Merge tag 'renesas-drivers-for-v5.18-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel into arm/drivers

Renesas driver updates for v5.18

  - Initial support for the new RZ/V2L SoC,
  - RZ/G2L product revision support.

* tag 'renesas-drivers-for-v5.18-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/renesas-devel:
  soc: renesas: Add support for reading product revision for RZ/G2L family
  soc: renesas: Identify RZ/V2L SoC

Link: https://lore.kernel.org/r/cover.1644587208.git.geert+renesas@glider.be
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-02-25 17:04:24 +01:00
Lad Prabhakar
088659ad2a soc: renesas: Kconfig: Introduce ARCH_RZG2L config option
The Renesas RZ/G2L, RZ/G2LC, RZ/G2UL and RZ/V2L SoCs have identical IP
blocks for which drivers are common.  To avoid updating the Kconfig
files for drivers in common to each SoC, introduce the ARCH_RZG2L config
option.
The ARCH_RZG2L config option will be selected by the above mentioned
SoCs, and the ARCH_RZG2L config option will be used as a dependency for
the drivers in common.

While at it, move PM and PM_GENERIC_DOMAINS under the ARCH_RZG2L config
option instead of keeping it for individual SoCs.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20220224092114.25737-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-02-24 13:53:25 +01:00
Lad Prabhakar
b89acaf8ca soc: renesas: Kconfig: Explicitly select PM and PM_GENERIC_DOMAINS configs
Explicitly select PM and PM_GENERIC_DOMAINS configs for ARCH_R9A07G044
and ARCH_R9A07G054 configs.  PM and PM_GENERIC_DOMAINS configs are
required for RZ/{G2L,V2L} SoC without these configs the SMARC EVK's
won't boot.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220221222450.5393-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-02-22 09:44:15 +01:00
Jens Wiklander
a45ea4efa3 tee: refactor TEE_SHM_* flags
Removes the redundant TEE_SHM_DMA_BUF, TEE_SHM_EXT_DMA_BUF,
TEE_SHM_MAPPED and TEE_SHM_KERNEL_MAPPED flags.

TEE_SHM_REGISTER is renamed to TEE_SHM_DYNAMIC in order to better
match its usage.

Assigns new values to the remaining flags to void gaps.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
53e16519c2 tee: replace tee_shm_register()
tee_shm_register() is replaced by the previously introduced functions
tee_shm_register_user_buf() and tee_shm_register_kernel_buf().

Since there are not external callers left we can remove tee_shm_register()
and refactor the remains.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
231b1fc5da KEYS: trusted: tee: use tee_shm_register_kernel_buf()
Uses the new simplified tee_shm_register_kernel_buf() function instead
of the old tee_shm_alloc() function which required specific
TEE_SHM-flags

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
056d3fed3d tee: add tee_shm_register_{user,kernel}_buf()
Adds the two new functions tee_shm_register_user_buf() and
tee_shm_register_kernel_buf() which should be used instead of the old
tee_shm_register().

This avoids having the caller supplying the flags parameter which
exposes a bit more than desired of the internals of the TEE subsystem.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
924e322692 optee: add optee_pool_op_free_helper()
Adds a common helper function to free a tee_shm allocated using the
helper function optee_pool_op_alloc_helper().

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
5d41f1b3e3 tee: replace tee_shm_alloc()
tee_shm_alloc() is replaced by three new functions,

tee_shm_alloc_user_buf() - for user mode allocations, replacing passing
the flags TEE_SHM_MAPPED | TEE_SHM_DMA_BUF

tee_shm_alloc_kernel_buf() - for kernel mode allocations, slightly
optimized compared to using the flags TEE_SHM_MAPPED | TEE_SHM_DMA_BUF.

tee_shm_alloc_priv_buf() - primarily for TEE driver internal use.

This also makes the interface easier to use as we can get rid of the
somewhat hard to use flags parameter.

The TEE subsystem and the TEE drivers are updated to use the new
functions instead.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
d88e0493a0 tee: simplify shm pool handling
Replaces the shared memory pool based on two pools with a single pool.
The alloc() function pointer in struct tee_shm_pool_ops gets another
parameter, align. This makes it possible to make less than page aligned
allocations from the optional reserved shared memory pool while still
making user space allocations page aligned. With in practice unchanged
behaviour using only a single pool for bookkeeping.

The allocation algorithm in the static OP-TEE shared memory pool is
changed from best-fit to first-fit since only the latter supports an
alignment parameter. The best-fit algorithm was previously the default
choice and not a conscious one.

The optee and amdtee drivers are updated as needed to work with this
changed pool handling.

This also removes OPTEE_SHM_NUM_PRIV_PAGES which becomes obsolete with
this change as the private pages can be mixed with the payload pages.

The OP-TEE driver changes minimum alignment for argument struct from 8
bytes to 512 bytes. A typical OP-TEE private shm allocation is 224 bytes
(argument struct with 6 parameters, needed for open session). So with an
alignment of 512 well waste a bit more than 50%. Before this we had a
single page reserved for this so worst case usage compared to that would
be 3 pages instead of 1 page. However, this worst case only occurs if
there is a high pressure from multiple threads on secure world. All in
all this should scale up and down better than fixed boundaries.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
71cc47d4cc tee: add tee_shm_alloc_user_buf()
Adds a new function tee_shm_alloc_user_buf() for user mode allocations,
replacing passing the flags TEE_SHM_MAPPED | TEE_SHM_DMA_BUF to
tee_shm_alloc().

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
f41b6be1eb tee: remove unused tee_shm_pool_alloc_res_mem()
None of the drivers in the TEE subsystem uses
tee_shm_pool_alloc_res_mem() so remove the function.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Jens Wiklander
e7ddab0847 hwrng: optee-rng: use tee_shm_alloc_kernel_buf()
Uses the new simplified tee_shm_alloc_kernel_buf() function instead of
the old deprecated tee_shm_alloc() function which required specific
TEE_SHM-flags.

Reviewed-by: Sumit Garg <sumit.garg@linaro.org>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-16 07:49:41 +01:00
Cai Huoqing
f7b67642dd tee: amdtee: Make use of the helper macro LIST_HEAD()
Replace "struct list_head head = LIST_HEAD_INIT(head)" with
"LIST_HEAD(head)" to simplify the code.

Signed-off-by: Cai Huoqing <cai.huoqing@linux.dev>
Reviewed-by: Rijo Thomas <Rijo-john.Thomas@amd.com>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
2022-02-14 10:57:55 +01:00
Biju Das
cb5508e47e soc: renesas: Add support for reading product revision for RZ/G2L family
As per RZ/G2L HW manual (Rev.1.00 Sep, 2021) DEV_ID [31:28] indicates
product revision. Use this information to populate the revision info
for RZ/G2L family.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Link: https://lore.kernel.org/r/20220121014117.21248-1-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2022-02-08 09:43:06 +01:00
Linus Torvalds
dfd42facf1 Linux 5.17-rc3 2022-02-06 12:20:50 -08:00
Linus Torvalds
d8ad2ce873 Various bug fixes for ext4 fast commit and inline data handling. Also
fix regression introduced as part of moving to the new mount API.
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Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Various bug fixes for ext4 fast commit and inline data handling.

  Also fix regression introduced as part of moving to the new mount API"

* tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  fs/ext4: fix comments mentioning i_mutex
  ext4: fix incorrect type issue during replay_del_range
  jbd2: fix kernel-doc descriptions for jbd2_journal_shrink_{scan,count}()
  ext4: fix potential NULL pointer dereference in ext4_fill_super()
  jbd2: refactor wait logic for transaction updates into a common function
  jbd2: cleanup unused functions declarations from jbd2.h
  ext4: fix error handling in ext4_fc_record_modified_inode()
  ext4: remove redundant max inline_size check in ext4_da_write_inline_data_begin()
  ext4: fix error handling in ext4_restore_inline_data()
  ext4: fast commit may miss file actions
  ext4: fast commit may not fallback for ineligible commit
  ext4: modify the logic of ext4_mb_new_blocks_simple
  ext4: prevent used blocks from being allocated during fast commit replay
2022-02-06 10:34:45 -08:00
Linus Torvalds
18118a4298 perf tools fixes for v5.17: 1st batch
- Fix display of grouped aliased events in 'perf stat'.
 
 - Add missing branch_sample_type to perf_event_attr__fprintf().
 
 - Apply correct label to user/kernel symbols in branch mode.
 
 - Fix 'perf ftrace' system_wide tracing, it has to be set before creating the maps.
 
 - Return error if procfs isn't mounted for PID namespaces when synthesizing records
   for pre-existing processes.
 
 - Set error stream of objdump process for 'perf annotate' TUI, to avoid garbling the
   screen.
 
 - Add missing arm64 support to perf_mmap__read_self(), the kernel part got into 5.17.
 
 - Check for NULL pointer before dereference writing debug info about a sample.
 
 - Update UAPI copies for asound, perf_event, prctl and kvm headers.
 
 - Fix a typo in bpf_counter_cgroup.c.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-fixes-for-v5.17-2022-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux

Pull perf tools fixes from Arnaldo Carvalho de Melo:

 - Fix display of grouped aliased events in 'perf stat'.

 - Add missing branch_sample_type to perf_event_attr__fprintf().

 - Apply correct label to user/kernel symbols in branch mode.

 - Fix 'perf ftrace' system_wide tracing, it has to be set before
   creating the maps.

 - Return error if procfs isn't mounted for PID namespaces when
   synthesizing records for pre-existing processes.

 - Set error stream of objdump process for 'perf annotate' TUI, to avoid
   garbling the screen.

 - Add missing arm64 support to perf_mmap__read_self(), the kernel part
   got into 5.17.

 - Check for NULL pointer before dereference writing debug info about a
   sample.

 - Update UAPI copies for asound, perf_event, prctl and kvm headers.

 - Fix a typo in bpf_counter_cgroup.c.

* tag 'perf-tools-fixes-for-v5.17-2022-02-06' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf ftrace: system_wide collection is not effective by default
  libperf: Add arm64 support to perf_mmap__read_self()
  tools include UAPI: Sync sound/asound.h copy with the kernel sources
  perf stat: Fix display of grouped aliased events
  perf tools: Apply correct label to user/kernel symbols in branch mode
  perf bpf: Fix a typo in bpf_counter_cgroup.c
  perf synthetic-events: Return error if procfs isn't mounted for PID namespaces
  perf session: Check for NULL pointer before dereference
  perf annotate: Set error stream of objdump process for TUI
  perf tools: Add missing branch_sample_type to perf_event_attr__fprintf()
  tools headers UAPI: Sync linux/kvm.h with the kernel sources
  tools headers UAPI: Sync linux/prctl.h with the kernel sources
  perf beauty: Make the prctl arg regexp more strict to cope with PR_SET_VMA
  tools headers cpufeatures: Sync with the kernel sources
  tools headers UAPI: Sync linux/perf_event.h with the kernel sources
  tools include UAPI: Sync sound/asound.h copy with the kernel sources
2022-02-06 10:18:23 -08:00
Linus Torvalds
c3bf8a1440 perf/urgent contains 3 fixups:
- Intel/PT: filters could crash the kernel
 
  - Intel: default disable the PMU for SMM, some new-ish EFI firmware has
    started using CPL3 and the PMU CPL filters don't discriminate against
    SMM, meaning that CPL3 (userspace only) events now also count EFI/SMM
    cycles.
 
  - Fixup for perf_event_attr::sig_data
 
 (Peter Zijlstra)
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Merge tag 'perf_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf fixes from Borislav Petkov:

 - Intel/PT: filters could crash the kernel

 - Intel: default disable the PMU for SMM, some new-ish EFI firmware has
   started using CPL3 and the PMU CPL filters don't discriminate against
   SMM, meaning that CPL3 (userspace only) events now also count EFI/SMM
   cycles.

 - Fixup for perf_event_attr::sig_data

* tag 'perf_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/intel/pt: Fix crash with stop filters in single-range mode
  perf: uapi: Document perf_event_attr::sig_data truncation on 32 bit architectures
  selftests/perf_events: Test modification of perf_event_attr::sig_data
  perf: Copy perf_event_attr::sig_data on modification
  x86/perf: Default set FREEZE_ON_SMI for all
2022-02-06 10:11:14 -08:00
Linus Torvalds
aeabe1e074 - Fix a potential truncated string warning triggered by gcc12
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Merge tag 'objtool_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull objtool fix from Borislav Petkov:
 "Fix a potential truncated string warning triggered by gcc12"

* tag 'objtool_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  objtool: Fix truncated string warning
2022-02-06 10:04:43 -08:00
Linus Torvalds
b72e40b192 - Remove a bogus warning introduced by the recent PCI MSI irq affinity
overhaul
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Merge tag 'irq_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fix from Borislav Petkov:
 "Remove a bogus warning introduced by the recent PCI MSI irq affinity
  overhaul"

* tag 'irq_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  PCI/MSI: Remove bogus warning in pci_irq_get_affinity()
2022-02-06 10:00:40 -08:00
Linus Torvalds
898b5841ae - Fix altera and xgene EDAC drivers to propagate the correct error code
from platform_get_irq() so that deferred probing still works
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Merge tag 'edac_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras

Pull EDAC fixes from Borislav Petkov:
 "Fix altera and xgene EDAC drivers to propagate the correct error code
  from platform_get_irq() so that deferred probing still works"

* tag 'edac_urgent_for_v5.17_rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/ras/ras:
  EDAC/xgene: Fix deferred probing
  EDAC/altera: Fix deferred probing
2022-02-06 09:57:39 -08:00
Changbin Du
fceb62124d perf ftrace: system_wide collection is not effective by default
The ftrace.target.system_wide must be set before invoking
evlist__create_maps(), otherwise it has no effect.

Fixes: 53be502822 ("perf ftrace: Add 'latency' subcommand")
Signed-off-by: Changbin Du <changbin.du@gmail.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20220127132010.4836-1-changbin.du@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:19:51 -03:00
Rob Herring
407eb43ae8 libperf: Add arm64 support to perf_mmap__read_self()
Add the arm64 variants for read_perf_counter() and read_timestamp().
Unfortunately the counter number is encoded into the instruction, so the
code is a bit verbose to enumerate all possible counters.

Tested-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: John Garry <john.garry@huawei.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Link: https://lore.kernel.org/r/20220201214056.702854-1-robh@kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Will Deacon <will@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
2022-02-06 09:14:27 -03:00
Arnaldo Carvalho de Melo
4f2492731a tools include UAPI: Sync sound/asound.h copy with the kernel sources
Picking the changes from:

  06feec6005 ("ASoC: hdmi-codec: Fix OOB memory accesses")

Which entails no changes in the tooling side as it doesn't introduce new
SNDRV_PCM_IOCTL_ 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: Dmitry Osipenko <digetx@gmail.com>
Cc: Mark Brown <broonie@kernel.org>
Cc: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/lkml/Yf+6OT+2eMrYDEeX@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:08:46 -03:00
Ian Rogers
b2b1aa73ad perf stat: Fix display of grouped aliased events
An event may have a number of uncore aliases that when added to the
evlist are consecutive.

If there are multiple uncore events in a group then
parse_events__set_leader_for_uncore_aliase will reorder the evlist so
that events on the same PMU are adjacent.

The collect_all_aliases function assumes that aliases are in blocks so
that only the first counter is printed and all others are marked merged.

The reordering for groups breaks the assumption and so all counts are
printed.

This change removes the assumption from collect_all_aliases
that the events are in blocks and instead processes the entire evlist.

Before:

  ```
  $ perf stat -e '{UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE,UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE},duration_time' -a -A -- sleep 1

   Performance counter stats for 'system wide':

  CPU0                  256,866      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 494,413      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      967      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,738      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  285,161      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 429,920      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      955      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,443      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  310,753      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 416,657      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,231      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,573      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  416,067      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 405,966      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,481      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,447      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  312,911      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 408,154      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,086      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,380      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  333,994      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 370,349      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,287      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,335      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  188,107      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 302,423      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      701      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,070      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  307,221      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 383,642      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,036      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,158      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  318,479      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 821,545      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,028      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,550      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  227,618      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 372,272      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      903      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,456      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  376,783      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 419,827      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,406      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,453      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  286,583      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 429,956      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      999      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,436      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  313,867      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 370,159      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,114      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,291      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  342,083      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 409,111      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,399      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,684      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  365,828      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 376,037      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,378      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,411      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  382,456      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 621,743      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,232      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,955      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  342,316      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 385,067      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,176      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,268      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  373,588      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 386,163      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,394      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,464      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  381,206      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 546,891      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,266      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,712      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  221,176      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 392,069      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      831      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,456      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  355,401      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 705,595      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,235      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,216      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  371,436      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 428,103      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,306      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,442      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  384,352      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 504,200      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,468      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,860      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  228,856      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 287,976      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      832      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,060      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  215,121      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 334,162      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      681      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,026      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  296,179      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 436,083      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,084      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,525      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  262,296      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 416,573      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      986      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,533      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  285,852      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 359,842      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,073      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,326      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  303,379      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 367,222      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,008      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,156      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  273,487      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 425,449      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                      932      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,367      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  297,596      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 414,793      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,140      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,601      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  342,365      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 360,422      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,291      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,342      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  327,196      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 580,858      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,122      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,014      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  296,564      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 452,817      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,087      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,694      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  375,002      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 389,393      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,478      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   1,540      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0                  365,213      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36                 594,685      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                    1,401      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                   2,222      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0            1,000,749,060 ns   duration_time

         1.000749060 seconds time elapsed
  ```

After:

  ```
   Performance counter stats for 'system wide':

  CPU0               20,547,434      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU36              45,202,862      UNC_CHA_TOR_OCCUPANCY.IA_MISS_DRD_REMOTE
  CPU0                   82,001      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU36                 159,688      UNC_CHA_TOR_INSERTS.IA_MISS_DRD_REMOTE
  CPU0            1,000,464,828 ns   duration_time

         1.000464828 seconds time elapsed
  ```

Fixes: 3cdc5c2cb9 ("perf parse-events: Handle uncore event aliases in small groups properly")
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: Asaf Yaffe <asaf.yaffe@intel.com>
Cc: Caleb Biggers <caleb.biggers@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Garry <john.garry@huawei.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Kshipra Bopardikar <kshipra.bopardikar@intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Perry Taylor <perry.taylor@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Vineet Singh <vineet.singh@intel.com>
Cc: Zhengjun Xing <zhengjun.xing@linux.intel.com>
Link: https://lore.kernel.org/r/20220205010941.1065469-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:03:06 -03:00
German Gomez
05b5a9d628 perf tools: Apply correct label to user/kernel symbols in branch mode
In branch mode, the branch symbols were being displayed with incorrect
cpumode labels. So fix this.

For example, before:
  # perf record -b -a -- sleep 1
  # perf report -b

  Overhead  Command  Source Shared Object  Source Symbol               Target Symbol
     0.08%  swapper  [kernel.kallsyms]     [k] rcu_idle_enter          [k] cpuidle_enter_state
 ==> 0.08%  cmd0     [kernel.kallsyms]     [.] psi_group_change        [.] psi_group_change
     0.08%  cmd1     [kernel.kallsyms]     [k] psi_group_change        [k] psi_group_change

After:
  # perf report -b

  Overhead  Command  Source Shared Object  Source Symbol               Target Symbol
     0.08%  swapper  [kernel.kallsyms]     [k] rcu_idle_enter          [k] cpuidle_enter_state
     0.08%  cmd0     [kernel.kallsyms]     [k] psi_group_change        [k] pei_group_change
     0.08%  cmd1     [kernel.kallsyms]     [k] psi_group_change        [k] psi_group_change

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: German Gomez <german.gomez@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20220126105927.3411216-1-german.gomez@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:03:06 -03:00
Masanari Iida
a2887b9b8d perf bpf: Fix a typo in bpf_counter_cgroup.c
This patch fixes a spelling typo in error message.

Signed-off-by: Masanari Iida <standby24x7@gmail.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20211225005558.503935-1-standby24x7@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:03:06 -03:00
Leo Yan
bc9c806e52 perf synthetic-events: Return error if procfs isn't mounted for PID namespaces
For perf recording, it retrieves process info by iterating nodes in proc
fs.  If we run perf in a non-root PID namespace with command:

  # unshare --fork --pid perf record -e cycles -a -- test_program

... in this case, unshare command creates a child PID namespace and
launches perf tool in it, but the issue is the proc fs is not mounted
for the non-root PID namespace, this leads to the perf tool gathering
process info from its parent PID namespace.

We can use below command to observe the process nodes under proc fs:

  # unshare --pid --fork ls /proc
1    137   1968  2128  3    342  48  62   78	     crypto	  kcore        net	      uptime
10   138   2	 2142  30   35	 49  63   8	     devices	  keys	       pagetypeinfo   version
11   139   20	 2143  304  36	 50  64   82	     device-tree  key-users    partitions     vmallocinfo
12   14    2011  22    305  37	 51  65   83	     diskstats	  kmsg	       self	      vmstat
128  140   2038  23    307  39	 52  656  84	     driver	  kpagecgroup  slabinfo       zoneinfo
129  15    2074  24    309  4	 53  67   9	     execdomains  kpagecount   softirqs
13   16    2094  241   31   40	 54  68   asound     fb		  kpageflags   stat
130  164   2096  242   310  41	 55  69   buddyinfo  filesystems  loadavg      swaps
131  17    2098  25    317  42	 56  70   bus	     fs		  locks        sys
132  175   21	 26    32   43	 57  71   cgroups    interrupts   meminfo      sysrq-trigger
133  179   2102  263   329  44	 58  75   cmdline    iomem	  misc	       sysvipc
134  1875  2103  27    330  45	 59  76   config.gz  ioports	  modules      thread-self
135  19    2117  29    333  46	 6   77   consoles   irq	  mounts       timer_list
136  1941  2121  298   34   47	 60  773  cpuinfo    kallsyms	  mtd	       tty

So it shows many existed tasks, since unshared command has not mounted
the proc fs for the new created PID namespace, it still accesses the
proc fs of the root PID namespace.  This leads to two prominent issues:

- Firstly, PID values are mismatched between thread info and samples.
  The gathered thread info are coming from the proc fs of the root PID
  namespace, but samples record its PID from the child PID namespace.

- The second issue is profiled program 'test_program' returns its forked
  PID number from the child PID namespace, perf tool wrongly uses this
  PID number to retrieve the process info via the proc fs of the root
  PID namespace.

To avoid issues, we need to mount proc fs for the child PID namespace
with the option '--mount-proc' when use unshare command:

  # unshare --fork --pid --mount-proc perf record -e cycles -a -- test_program

Conversely, when the proc fs of the root PID namespace is used by child
namespace, perf tool can detect the multiple PID levels and
nsinfo__is_in_root_namespace() returns false, this patch reports error
for this case:

  # unshare --fork --pid perf record -e cycles -a -- test_program
  Couldn't synthesize bpf events.
  Perf runs in non-root PID namespace but it tries to gather process info from its parent PID namespace.
  Please mount the proc file system properly, e.g. add the option '--mount-proc' for unshare command.

Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Leo Yan <leo.yan@linaro.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Starovoitov <ast@kernel.org>
Cc: Andrii Nakryiko <andrii@kernel.org>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: John Fastabend <john.fastabend@gmail.com>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Martin KaFai Lau <kafai@fb.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <songliubraving@fb.com>
Cc: Yonghong Song <yhs@fb.com>
Link: https://lore.kernel.org/r/20211224124014.2492751-1-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:03:06 -03:00
Ameer Hamza
d792a7a94c perf session: Check for NULL pointer before dereference
Move NULL pointer check before dereferencing the variable.

Addresses-Coverity: 1497622 ("Derereference before null check")
Reviewed-by: James Clark <james.clark@arm.com>
Signed-off-by: Ameer Hamza <amhamza.mgc@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Cc: German Gomez <german.gomez@arm.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Riccardo Mancini <rickyman7@gmail.com>
Link: https://lore.kernel.org/r/20220125121141.18347-1-amhamza.mgc@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:03:06 -03:00
Namhyung Kim
a663520fcc perf annotate: Set error stream of objdump process for TUI
The stderr should be set to a pipe when using TUI.  Otherwise it'd
print to stdout and break TUI windows with an error message.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20220202070828.143303-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:03:06 -03:00
Anshuman Khandual
ae65b443f0 perf tools: Add missing branch_sample_type to perf_event_attr__fprintf()
This updates branch sample type with missing PERF_SAMPLE_BRANCH_TYPE_SAVE.

Suggested-by: James Clark <james.clark@arm.com>
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: linux-arm-kernel@lists.infradead.org
Link: http://lore.kernel.org/lkml/1643799443-15109-1-git-send-email-anshuman.khandual@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:03:06 -03:00
Arnaldo Carvalho de Melo
b7b9825fbe tools headers UAPI: Sync linux/kvm.h with the kernel sources
To pick the changes in:

  f6c6804c43 ("kvm: Move KVM_GET_XSAVE2 IOCTL definition at the end of kvm.h")

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/, a simple test
build succeeded.

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: Janosch Frank <frankja@linux.ibm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Link: http://lore.kernel.org/lkml/Yf+4k5Fs5Q3HdSG9@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 09:02:25 -03:00
Arnaldo Carvalho de Melo
9334030c3b Merge remote-tracking branch 'torvalds/master' into perf/urgent
To check if more kernel API sync is needed and also to see if the perf
build tests continue to pass.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-02-06 08:28:34 -03:00
Linus Torvalds
90c9e950c0 xen: branch for v5.17-rc3
-----BEGIN PGP SIGNATURE-----
 
 iHUEABYIAB0WIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCYf5Y3AAKCRCAXGG7T9hj
 vmfRAP9dBr4LfnfLkY+If70xAVdcImOjK7NzTYCaWAFF1evmJgEAueEWUrV7hJQq
 HYiLXPWFsr5eqnzlcWwLPaBxFH+uIAY=
 =Jxjf
 -----END PGP SIGNATURE-----

Merge tag 'for-linus-5.17a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen fixes from Juergen Gross:

 - documentation fixes related to Xen

 - enable x2apic mode when available when running as hardware
   virtualized guest under Xen

 - cleanup and fix a corner case of vcpu enumeration when running a
   paravirtualized Xen guest

* tag 'for-linus-5.17a-rc3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  x86/Xen: streamline (and fix) PV CPU enumeration
  xen: update missing ioctl magic numers documentation
  Improve docs for IOCTL_GNTDEV_MAP_GRANT_REF
  xen: xenbus_dev.h: delete incorrect file name
  xen/x2apic: enable x2apic mode when supported for HVM
2022-02-05 10:40:17 -08:00
Linus Torvalds
5fdb26213f ARM:
* A couple of fixes when handling an exception while a SError has been delivered
 
 * Workaround for Cortex-A510's single-step erratum
 
 RISCV:
 
 * Make CY, TM, and IR counters accessible in VU mode
 
 * Fix SBI implementation version
 
 x86:
 
 * Report deprecation of x87 features in supported CPUID
 
 * Preparation for fixing an interrupt delivery race on AMD hardware
 
 * Sparse fix
 
 All except POWER and s390:
 
 * Rework guest entry code to correctly mark noinstr areas and fix vtime'
   accounting (for x86, this was already mostly correct but not entirely;
   for ARM, MIPS and RISC-V it wasn't)
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "ARM:

   - A couple of fixes when handling an exception while a SError has
     been delivered

   - Workaround for Cortex-A510's single-step erratum

  RISC-V:

   - Make CY, TM, and IR counters accessible in VU mode

   - Fix SBI implementation version

  x86:

   - Report deprecation of x87 features in supported CPUID

   - Preparation for fixing an interrupt delivery race on AMD hardware

   - Sparse fix

  All except POWER and s390:

   - Rework guest entry code to correctly mark noinstr areas and fix
     vtime' accounting (for x86, this was already mostly correct but not
     entirely; for ARM, MIPS and RISC-V it wasn't)"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86: Use ERR_PTR_USR() to return -EFAULT as a __user pointer
  KVM: x86: Report deprecated x87 features in supported CPUID
  KVM: arm64: Workaround Cortex-A510's single-step and PAC trap errata
  KVM: arm64: Stop handle_exit() from handling HVC twice when an SError occurs
  KVM: arm64: Avoid consuming a stale esr value when SError occur
  RISC-V: KVM: Fix SBI implementation version
  RISC-V: KVM: make CY, TM, and IR counters accessible in VU mode
  kvm/riscv: rework guest entry logic
  kvm/arm64: rework guest entry logic
  kvm/x86: rework guest entry logic
  kvm/mips: rework guest entry logic
  kvm: add guest_state_{enter,exit}_irqoff()
  KVM: x86: Move delivery of non-APICv interrupt into vendor code
  kvm: Move KVM_GET_XSAVE2 IOCTL definition at the end of kvm.h
2022-02-05 09:55:59 -08:00
Linus Torvalds
fbc04bf01a Fixes for 5.17-rc3:
- Fix fallocate so that it drops all file privileges when files are
    modified instead of open-coding that incompletely.
  - Fix fallocate to flush the log if the caller wanted synchronous file
    updates.
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Merge tag 'xfs-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Darrick Wong:
 "I was auditing operations in XFS that clear file privileges, and
  realized that XFS' fallocate implementation drops suid/sgid but
  doesn't clear file capabilities the same way that file writes and
  reflink do.

  There are VFS helpers that do it correctly, so refactor XFS to use
  them. I also noticed that we weren't flushing the log at the correct
  point in the fallocate operation, so that's fixed too.

  Summary:

   - Fix fallocate so that it drops all file privileges when files are
     modified instead of open-coding that incompletely.

   - Fix fallocate to flush the log if the caller wanted synchronous
     file updates"

* tag 'xfs-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: ensure log flush at the end of a synchronous fallocate call
  xfs: move xfs_update_prealloc_flags() to xfs_pnfs.c
  xfs: set prealloc flag in xfs_alloc_file_space()
  xfs: fallocate() should call file_modified()
  xfs: remove XFS_PREALLOC_SYNC
  xfs: reject crazy array sizes being fed to XFS_IOC_GETBMAP*
2022-02-05 09:21:55 -08:00
Linus Torvalds
ea7b3e6d42 Fixes for 5.17-rc3:
- Fix a bug where callers of ->sync_fs (e.g. sync_filesystem and
    syncfs(2)) ignore the return value.
  - Fix a bug where callers of sync_filesystem (e.g. fs freeze) ignore
    the return value.
  - Fix a bug in XFS where xfs_fs_sync_fs never passed back error
    returns.
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Merge tag 'vfs-5.17-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull vfs fixes from Darrick Wong:
 "I was auditing the sync_fs code paths recently and noticed that most
  callers of ->sync_fs ignore its return value (and many implementations
  never return nonzero even if the fs is broken!), which means that
  internal fs errors and corruption are not passed up to userspace
  callers of syncfs(2) or FIFREEZE. Hence fixing the common code and
  XFS, and I'll start working on the ext4/btrfs folks if this is merged.

  Summary:

   - Fix a bug where callers of ->sync_fs (e.g. sync_filesystem and
     syncfs(2)) ignore the return value.

   - Fix a bug where callers of sync_filesystem (e.g. fs freeze) ignore
     the return value.

   - Fix a bug in XFS where xfs_fs_sync_fs never passed back error
     returns"

* tag 'vfs-5.17-fixes-2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: return errors in xfs_fs_sync_fs
  quota: make dquot_quota_sync return errors from ->sync_fs
  vfs: make sync_filesystem return errors from ->sync_fs
  vfs: make freeze_super abort when sync_filesystem returns error
2022-02-05 09:13:51 -08:00
Linus Torvalds
524446e217 Fixes for 5.17-rc2:
- Limit the length of ioend chains in writeback so that we don't trip
    the softlockup watchdog and to limit long tail latency on clearing
    PageWriteback.
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Merge tag 'iomap-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull iomap fix from Darrick Wong:
 "A single bugfix for iomap.

  The fix should eliminate occasional complaints about stall warnings
  when a lot of writeback IO completes all at once and we have to then
  go clearing status on a large number of folios.

  Summary:

   - Limit the length of ioend chains in writeback so that we don't trip
     the softlockup watchdog and to limit long tail latency on clearing
     PageWriteback"

* tag 'iomap-5.17-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs, iomap: limit individual ioend chain lengths in writeback
2022-02-05 09:04:43 -08:00
Paolo Bonzini
7e6a6b400d KVM/arm64 fixes for 5.17, take #2
- A couple of fixes when handling an exception while a SError has been
   delivered
 
 - Workaround for Cortex-A510's single-step[ erratum
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Merge tag 'kvmarm-fixes-5.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD

KVM/arm64 fixes for 5.17, take #2

- A couple of fixes when handling an exception while a SError has been
  delivered

- Workaround for Cortex-A510's single-step[ erratum
2022-02-05 00:58:25 -05:00
Linus Torvalds
0457e5153e First v5.17 rc request
Some medium sized bugs in the various drivers. A couple are more recent
 regressions:
 
 - Fix two panics in hfi1 and two allocation problems
 
 - Send the IGMP to the correct address in cma
 
 - Squash a syzkaller bug related to races reading the multicast list
 
 - Memory leak in siw and cm
 
 - Fix a corner case spec compliance for HFI/QIB
 
 - Correct the implementation of fences in siw
 
 - Error unwind bug in mlx4
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Some medium sized bugs in the various drivers. A couple are more
  recent regressions:

   - Fix two panics in hfi1 and two allocation problems

   - Send the IGMP to the correct address in cma

   - Squash a syzkaller bug related to races reading the multicast list

   - Memory leak in siw and cm

   - Fix a corner case spec compliance for HFI/QIB

   - Correct the implementation of fences in siw

   - Error unwind bug in mlx4"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/mlx4: Don't continue event handler after memory allocation failure
  RDMA/siw: Fix broken RDMA Read Fence/Resume logic.
  IB/rdmavt: Validate remote_addr during loopback atomic tests
  IB/cm: Release previously acquired reference counter in the cm_id_priv
  RDMA/siw: Fix refcounting leak in siw_create_qp()
  RDMA/ucma: Protect mc during concurrent multicast leaves
  RDMA/cma: Use correct address when leaving multicast group
  IB/hfi1: Fix tstats alloc and dealloc
  IB/hfi1: Fix AIP early init panic
  IB/hfi1: Fix alloc failure with larger txqueuelen
  IB/hfi1: Fix panic with larger ipoib send_queue_size
2022-02-04 16:28:11 -08:00
Linus Torvalds
fc93310c67 SCSI fixes on 20220204
Seven fixes, six of which are fairly obvious driver fixes.  The one
 core change to the device budget depth is to try to ensure that if the
 default depth is large (which can produce quite a sizeable bitmap
 allocation per device), we give back the memory we don't need if
 there's a queue size reduction in slave_configure (which happens to a
 lot of devices).
 
 Signed-off-by: James E.J. Bottomley <jejb@linux.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Seven fixes, six of which are fairly obvious driver fixes.

  The one core change to the device budget depth is to try to ensure
  that if the default depth is large (which can produce quite a sizeable
  bitmap allocation per device), we give back the memory we don't need
  if there's a queue size reduction in slave_configure (which happens to
  a lot of devices)"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: hisi_sas: Fix setting of hisi_sas_slot.is_internal
  scsi: pm8001: Fix use-after-free for aborted SSP/STP sas_task
  scsi: pm8001: Fix use-after-free for aborted TMF sas_task
  scsi: pm8001: Fix warning for undescribed param in process_one_iomb()
  scsi: core: Reallocate device's budget map on queue depth change
  scsi: bnx2fc: Make bnx2fc_recv_frame() mp safe
  scsi: pm80xx: Fix double completion for SATA devices
2022-02-04 15:27:45 -08:00
Linus Torvalds
e09e1a4063 pci-v5.17-fixes-3
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Merge tag 'pci-v5.17-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci

Pull pci fixes from Bjorn Helgaas:

 - Restructure j721e_pcie_probe() so we don't dereference a NULL pointer
   (Bjorn Helgaas)

 - Add a kirin_pcie_data struct to identify different Kirin variants to
   fix probe failure for controllers with an internal PHY (Bjorn
   Helgaas)

* tag 'pci-v5.17-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci:
  PCI: kirin: Add dev struct for of_device_get_match_data()
  PCI: j721e: Initialize pcie->cdns_pcie before using it
2022-02-04 15:22:35 -08:00
Bjorn Helgaas
7dd3876205 PCI: kirin: Add dev struct for of_device_get_match_data()
Bean reported that a622435fbe ("PCI: kirin: Prefer
of_device_get_match_data()") broke kirin_pcie_probe() because it assumed
match data of 0 was a failure when in fact, it meant the match data was
"(void *)PCIE_KIRIN_INTERNAL_PHY".

Therefore, probing of "hisilicon,kirin960-pcie" devices failed with -EINVAL
and an "OF data missing" message.

Add a struct kirin_pcie_data to encode the PHY type.  Then the result of
of_device_get_match_data() should always be a non-NULL pointer to a struct
kirin_pcie_data that contains the PHY type.

Fixes: a622435fbe ("PCI: kirin: Prefer of_device_get_match_data()")
Link: https://lore.kernel.org/r/20220202162659.GA12603@bhelgaas
Link: https://lore.kernel.org/r/20220201215941.1203155-1-huobean@gmail.com
Reported-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2022-02-04 15:14:26 -06:00
Linus Torvalds
86286e486c for-5.17-rc2-tag
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Merge tag 'for-5.17-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few fixes and error handling improvements:

   - fix deadlock between quota disable and qgroup rescan worker

   - fix use-after-free after failure to create a snapshot

   - skip warning on unmount after log cleanup failure

   - don't start transaction for scrub if the fs is mounted read-only

   - tree checker verifies item sizes"

* tag 'for-5.17-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: skip reserved bytes warning on unmount after log cleanup failure
  btrfs: fix use of uninitialized variable at rm device ioctl
  btrfs: fix use-after-free after failure to create a snapshot
  btrfs: tree-checker: check item_size for dev_item
  btrfs: tree-checker: check item_size for inode_item
  btrfs: fix deadlock between quota disable and qgroup rescan worker
  btrfs: don't start transaction for scrub if the fs is mounted read-only
2022-02-04 12:14:58 -08:00
Linus Torvalds
b0bc0cb815 Changes since last update:
- fix fsdax partition offset misbehavior;
 
  - clean up z_erofs_decompressqueue_work() declaration;
 
  - fix up EOF lcluster inlining, especially for small compressed data.
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Merge tag 'erofs-for-5.17-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs fixes from Gao Xiang:
 "Two fixes related to fsdax cleanup in this cycle and ztailpacking to
  fix small compressed data inlining. There is also a trivial cleanup to
  rearrange code for better reading.

  Summary:

   - fix fsdax partition offset misbehavior

   - clean up z_erofs_decompressqueue_work() declaration

   - fix up EOF lcluster inlining, especially for small compressed data"

* tag 'erofs-for-5.17-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs:
  erofs: fix small compressed files inlining
  erofs: avoid unnecessary z_erofs_decompressqueue_work() declaration
  erofs: fix fsdax partition offset handling
2022-02-04 12:08:49 -08:00
Linus Torvalds
7c4a94590e block-5.17-2022-02-04
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Merge tag 'block-5.17-2022-02-04' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:

 - NVMe pull request
    - fix use-after-free in rdma and tcp controller reset (Sagi Grimberg)
    - fix the state check in nvmf_ctlr_matches_baseopts (Uday Shankar)

 - MD nowait null pointer fix (Song)

 - blk-integrity seed advance fix (Martin)

 - Fix a dio regression in this merge window (Ilya)

* tag 'block-5.17-2022-02-04' of git://git.kernel.dk/linux-block:
  block: bio-integrity: Advance seed correctly for larger interval sizes
  nvme-fabrics: fix state check in nvmf_ctlr_matches_baseopts()
  md: fix NULL pointer deref with nowait but no mddev->queue
  block: fix DIO handling regressions in blkdev_read_iter()
  nvme-rdma: fix possible use-after-free in transport error_recovery work
  nvme-tcp: fix possible use-after-free in transport error_recovery work
  nvme: fix a possible use-after-free in controller reset during load
2022-02-04 12:01:57 -08:00