Extend the sample-parsing test to include a branch_flag bitfield-endian
swap test.
This patch adds a include for "util/trace-event.h" in the sample-parsing
test for importing tep_is_bigendian() and extends samples_same() to
include "needs_swap" to detect/enable check for bitfield-endian swap.
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211028113714.600549-2-maddy@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The branch_stack struct has bit field definition which produces
different bit ordering for big/little endian.
Because of this, when branch_stack sample is collected in a BE system
and viewed/reported in a LE system, bit fields of the branch stack are
not presented properly.
To address this issue, a evsel__bitfield_swap_branch_stack() is defined
and introduced in evsel__parse_sample.
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Kajol Jain <kjain@linux.ibm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Michael Ellerman <michael@ellerman.id.au>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lore.kernel.org/lkml/20211028113714.600549-1-maddy@linux.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The instruction latency information can be recorded on
some platforms, e.g., the Intel Sapphire Rapids server. With both memory
latency (weight) and the new instruction latency information, users can
easily locate the expensive load instructions, and also understand the time
spent in different stages. The users can optimize their applications in
different pipeline stages.
Add a new field "ins_lat" to filter the instruction latency information,
which is available with sample type PERF_SAMPLE_WEIGHT_STRUCT.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Joe Mario <jmario@redhat.com>
Link: https://lore.kernel.org/r/1632929894-102778-2-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Show binary offsets for userspace addr with map in perf script output
with callchain.
In commit 19610184693c("perf script: Show virtual addresses instead of
offsets"), the addr shown in perf script output with callchain is changed
from binary offsets to virtual address to fix the incorrectness when
displaying symbol offset.
This is inconvenient in scenario that the binary is stripped and
symbol cannot be resolved. If someone wants to further resolve symbols for
specific binaries later, he would need an extra step to translate virtual
address to binary offset with mapping information recorded in perf.data,
which can be difficult for people not familiar with perf.
This patch modifies function sample__fprintf_callchain to print binary
offset for userspace addr with dsos, and virtual address otherwise. It
does not affect symbol offset calculation so symoff remains correct.
Before applying this patch:
test 1512 78.711307: 533129 cycles:
aaaae0da07f4 [unknown] (/tmp/test)
aaaae0da0704 [unknown] (/tmp/test)
ffffbe9f7ef4 __libc_start_main+0xe4 (/lib64/libc-2.31.so)
After this patch:
test 1519 111.330127: 406953 cycles:
7f4 [unknown] (/tmp/test)
704 [unknown] (/tmp/test)
20ef4 __libc_start_main+0xe4 (/lib64/libc-2.31.so)
Fixes: 19610184693c("perf script: Show virtual addresses instead of offsets")
Signed-off-by: Lexi Shao <shaolexi@huawei.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
Tested-by: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: QiuXi <qiuxi1@huawei.com>
Cc: Wangbing <wangbing6@huawei.com>
Cc: Xiaoming Ni <nixiaoming@huawei.com>
Link: http://lore.kernel.org/lkml/20211019072417.122576-1-shaolexi@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Some 32-bit architectures (such are 32-bit RISC-V) only have a 64-bit
time_t and as such don't have the SYS_futex syscall. This patch will
allow us to use the SYS_futex_time64 syscall on those platforms.
This also converts the futex calls to be y2038 safe (when built for a
5.1+ kernel).
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alistair Francis <alistair23@gmail.com>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-riscv@lists.infradead.org
Link: http://lore.kernel.org/lkml/20211022013343.2262938-2-alistair.francis@opensource.wdc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
In preparation for a more complex futex() function let's convert the
current macro into two functions. We need two functions to avoid
compiler failures as the macro is overloaded.
This will allow us to include pre-processor conditionals in the futex
syscall functions.
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alistair Francis <alistair23@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Atish Patra <atish.patra@wdc.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-riscv@lists.infradead.org
Link: http://lore.kernel.org/lkml/20211022013343.2262938-1-alistair.francis@opensource.wdc.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It can be useful to see debug output in between normal output.
Add support for AUXTRACE_LOG_FLG_USE_STDOUT to Intel PT.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-7-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It can be useful to see debug output in between normal output.
Add 'o' to the flags of debug option 'd', so that '--itrace=d+o' can
specify output of the debug log to stdout.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-6-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add a new dlfilter to show cycles.
Cycle counts are accumulated per CPU (or per thread if CPU is not recorded)
from IPC information, and printed together with the change since the last
print, at the start of each line. Separate counts are kept for branches,
instructions or other events.
Note also, the itrace A option can be useful to provide higher granularity
cycle information.
Example:
$ perf record -e intel_pt/cyc/u uname
Linux
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.044 MB perf.data ]
$ perf script --itrace=A --call-trace --dlfilter dlfilter-show-cycles.so --deltatime | head
0 perf-exec 8509 [001] 0.000000000: psb offs: 0
0 perf-exec 8509 [001] 0.000000000: cbr: 42 freq: 4219 MHz (156%)
833 833 uname 8509 [001] 0.000047689: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _start
833 uname 8509 [001] 0.000003261: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
2015 1182 uname 8509 [001] 0.000000282: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
2676 661 uname 8509 [001] 0.000002629: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
3612 936 uname 8509 [001] 0.000001232: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
4579 967 uname 8509 [001] 0.000002519: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_start
6145 1566 uname 8509 [001] 0.000001050: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_setup_hash
6239 94 uname 8509 [001] 0.000000023: (/usr/lib/x86_64-linux-gnu/ld-2.31.so ) _dl_sysdep_start
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-5-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Normally, for cycle-acccurate mode, IPC values are an exact number of
instructions and cycles. Due to the granularity of timestamps, that happens
only when a CYC packet correlates to the event.
Support the itrace 'A' option, to use instead, the number of cycles
associated with the current timestamp. This provides IPC information for
every change of timestamp, but at the expense of accuracy. Due to the
granularity of timestamps, the actual number of cycles increases even
though the cycles reported does not. The number of instructions is known,
but if IPC is reported, cycles can be too low and so IPC is too high. Note
that inaccuracy decreases as the period of sampling increases i.e. if the
number of cycles is too low by a small amount, that becomes less
significant if the number of cycles is large.
Furthermore, it can be used in conjunction with dlfilter-show-cycles.so
to provide higher granularity cycle information.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add an option to specify that synthesized IPC can be approximate, rather
than completely accurate.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-3-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
ITRACE_HELP is used by perf commands to display help text for the --itrace
option. Add missing Z option.
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: https://lore.kernel.org/r/20211027080334.365596-2-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit cbefd24f0a ("tools build: Add test to check if slang.h is
in /usr/include/slang/") added a proper test to check whether slang.h is
in a subdirectory, and commit 1955c8cf5e ("perf tools: Don't
hardcode host include path for libslang") removed the include path for
test-libslang.bin but missed test-all.bin.
Apply the same change to test-all.bin.
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Fixes: 1955c8cf5e ("perf tools: Don't hardcode host include path for libslang")
Signed-off-by: John Keeping <john@metanate.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>
Cc: Nick Terrell <terrelln@fb.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20211025172314.3766032-1-john@metanate.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cleanup perf.data.old files which are also dropped by perf, handle
sigint and propagate it to the parent in case the test is run in a bash
while loop and don't create the temp files if the test will be skipped.
Reviewed-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Ian Rogers <irogers@google.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/20210921131009.390810-3-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The temp file is only cleaned up if the test is not skipped, so delay
making it until after the skip so it doesn't get left behind in /tmp.
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Leo Yan <leo.yan@linaro.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/r/20210921131009.390810-2-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The temp files are only cleaned up if the test is not skipped, so delay
making them until after the skip so they don't get left behind in /tmp.
Signed-off-by: James Clark <james.clark@arm.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.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>
Link: https://lore.kernel.org/r/20210921131009.390810-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the fixes from upstream.
Fix simple conflict on session.c related to the file position fix that
went upstream and is touched by the active decomp changes in perf/core.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Commit 110860541f ("mm/secretmem: use refcount_t instead of atomic_t")
attempted to fix the problem of secretmem_users wrapping to zero and
allowing suspend once again.
But it was reverted in commit 87066fdd2e ("Revert 'mm/secretmem: use
refcount_t instead of atomic_t'") because of the problems it caused - a
refcount_t was not semantically the right type to use.
Instead prevent secretmem_users from wrapping to zero by forbidding new
users if the number of users has wrapped from positive to negative.
This stops a long way short of reaching the necessary 4 billion users
where it wraps to zero again, so there's no need to be clever with
special anti-wrap types or checking the return value from atomic_inc().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Jordy Zomer <jordy@pwning.systems>
Cc: Kees Cook <keescook@chromium.org>,
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit efafec27c5 ("spi: Fix tegra20 build with CONFIG_PM=n") already
fixed the build without PM support once. There was an alternative fix
by Guenter in commit 2bab94090b ("spi: tegra20-slink: Declare runtime
suspend and resume functions conditionally"), and Mark then merged the
two correctly in ffb1e76f4f ("Merge tag 'v5.15-rc2' into spi-5.15").
But for some inexplicable reason, Mark then merged things _again_ in
commit 59c4e190b1 ("Merge tag 'v5.15-rc3' into spi-5.15"), and screwed
things up at that point, and the __maybe_unused attribute on
tegra_slink_runtime_resume() went missing.
Reinstate it, so that alpha (and other architectures without PM support)
builds cleanly again.
Btw, this is another prime example of how random back-merges are not
good. Just don't do them. Subsystem developers should not merge my
tree in any normal circumstances. Both of those merge commits pointed
to above are bad: even the one that got the merge result right doesn't
even mention _why_ it was done, and the one that got it wrong is
obviously broken.
Reported-by: Guenter Roeck <linux@roeck-us.net>
Cc: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
- Fix clang-related relocation warning in futex code
- Fix incorrect use of get_kernel_nofault()
- Fix bad code generation in __get_user_check() when kasan is enabled
- Ensure TLB function table is correctly aligned
- Remove duplicated string function definitions in decompressor
- Fix link-time orphan section warnings
- Fix old-style function prototype for arch_init_kprobes()
- Only warn about XIP address when not compile testing
- Handle BE32 big endian for keystone2 remapping
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Merge tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
- Fix clang-related relocation warning in futex code
- Fix incorrect use of get_kernel_nofault()
- Fix bad code generation in __get_user_check() when kasan is enabled
- Ensure TLB function table is correctly aligned
- Remove duplicated string function definitions in decompressor
- Fix link-time orphan section warnings
- Fix old-style function prototype for arch_init_kprobes()
- Only warn about XIP address when not compile testing
- Handle BE32 big endian for keystone2 remapping
* tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm:
ARM: 9148/1: handle CONFIG_CPU_ENDIAN_BE32 in arch/arm/kernel/head.S
ARM: 9141/1: only warn about XIP address when not compile testing
ARM: 9139/1: kprobes: fix arch_init_kprobes() prototype
ARM: 9138/1: fix link warning with XIP + frame-pointer
ARM: 9134/1: remove duplicate memcpy() definition
ARM: 9133/1: mm: proc-macros: ensure *_tlb_fns are 4B aligned
ARM: 9132/1: Fix __get_user_check failure with ARM KASAN images
ARM: 9125/1: fix incorrect use of get_kernel_nofault()
ARM: 9122/1: select HAVE_FUTEX_CMPXCHG
A single fix in this pull request addressing an invalid error code
return in the sata_mv driver (from Zheyu).
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
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Merge tag 'libata-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull libata fix from Damien Le Moal:
"A single fix in this pull request addressing an invalid error code
return in the sata_mv driver (from Zheyu)"
* tag 'libata-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: sata_mv: Fix the error handling of mv_chip_id()
Because _LARGEFILE64_SOURCE is set in perf, file offset sizes can be
64 bits. If a workflow needs to open /proc/kcore on a 32 bit system (for
example to decode Arm ETM kernel trace) then the size value will be
wrapped to 32 bits in the function file_size() at this line:
dso->data.file_size = st.st_size;
Setting the file_size member to be u64 fixes the issue and allows
/proc/kcore to be opened.
Reported-by: Denis Nikitin <denik@chromium.org>
Signed-off-by: James Clark <james.clark@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: http://lore.kernel.org/lkml/20211021112700.112499-1-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The following build message:
rm dlfilters/dlfilter-test-api-v0.o
is unwanted.
The object file is being treated as an intermediate file and being
automatically removed. Mark the object file as .SECONDARY to prevent
removal and hence the message.
Requested-by: Arnaldo Carvalho de Melo <acme@kernel.org>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Link: http://lore.kernel.org/lkml/20210930062849.110416-1-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add a new option '--cputype' to 'perf list' to display core-only PMU
events or atom-only PMU events.
Each hybrid PMU event has been assigned with a PMU name, this patch
compares the PMU name before listing the result.
For example:
perf list --cputype atom
...
cache:
core_reject_l2q.any
[Counts the number of request that were not accepted into the L2Q because the L2Q is FULL. Unit: cpu_atom]
...
The "Unit: cpu_atom" is displayed in the brief description section
to indicate this is an atom event.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jin Yao <yao.jin@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lore.kernel.org/lkml/20210903025239.22754-1-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This patch enables presenting Sampled Instruction Address Register
(SIAR) and Sampled Data Address Register (SDAR) SPRs as part of extended
registers for the perf tool.
Add these SPR's to sample_reg_mask in the tool side (to use with -I?
option).
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20211018114948.16830-3-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
PERF_REG_PMU_MASK_300 and PERF_REG_PMU_MASK_31 defines the mask value
for extended registers. Current definition of these mask values uses hex
constant and does not use registers by name, making it less readable.
Patch refactor the macro values in perf tools side header file by or'ing
together the actual register value constants.
Suggested-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Kajol Jain <kjain@linux.ibm.com>
Signed-off-by: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Nageswara R Sastry <rnsastry@linux.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Link: https://lore.kernel.org/r/20211018114948.16830-2-atrajeev@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Separate the reading code of a single event to a new
reader__read_event() function.
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: Riccardo Mancini <rickyman7@gmail.com>
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Tested-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/ffe570d937138dd24f282978ce7ed9c46a06ff9b.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Move the unmapping code to reader__mmap(), so that the mmap code is
located together.
Move the head/file_offset computation to reader__mmap(), so all the
offset computation is located together and in one place only.
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: Riccardo Mancini <rickyman7@gmail.com>
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Tested-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/f1c5e17cfa1ecfe912d10b411be203b55d148bc7.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Separate init/release code into reader__init() and reader__release_decomp()
functions.
Remove a duplicate call to ui_progress__init_size(), the same call can
be found in __perf_session__process_events().
For multiple traces ui_progress should be initialized by total size
before reader__init() calls.
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: Riccardo Mancini <rickyman7@gmail.com>
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Tested-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/8bacf247de220be8e57af1d2b796322175f5e257.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Introduce a decompressor data structure with pointers to decomp
objects and to zstd object.
We cannot just move session->zstd_data to decomp_data as
session->zstd_data is not only used for decompression.
Adding decompressor data object to reader object and introducing
active_decomp into perf_session object to select current decompressor.
Thus decompression could be executed separately for each data file.
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: Riccardo Mancini <rickyman7@gmail.com>
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Tested-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/0eee270cb52aebcbd029c8445d9009fd17709d53.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
We need all the state info about reader in separate object to load data
from multiple files, so we can keep multiple readers at the same time.
Moving all items that need to be kept from reader__process_events to
the reader object. Introducing mmap_cur to keep current mapping.
Suggested-by: Jiri Olsa <jolsa@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@redhat.com>
Reviewed-by: Riccardo Mancini <rickyman7@gmail.com>
Signed-off-by: Alexey Bayduraev <alexey.v.bayduraev@linux.intel.com>
Tested-by: Riccardo Mancini <rickyman7@gmail.com>
Acked-by: Namhyung Kim <namhyung@gmail.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Antonov <alexander.antonov@linux.intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexei Budankov <abudankov@huawei.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/5c7bdebfaadd7fcb729bd999b181feccaa292e8e.1634113027.git.alexey.v.bayduraev@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
- Three fixes pertaining to Broadcom DT bindings. Some stuff
didn't work out as inteded, we need to back out.
- A resume bug fix in the STM32 driver.
- Disable and mask the interrupts on probe in the AMD pinctrl
driver, affecting Microsoft surface.
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Merge tag 'pinctrl-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pin control fixes from Linus Walleij:
"Some late pin control fixes, the most generally annoying will probably
be the AMD IRQ storm fix affecting the Microsoft surface.
Summary:
- Three fixes pertaining to Broadcom DT bindings. Some stuff didn't
work out as inteded, we need to back out
- A resume bug fix in the STM32 driver
- Disable and mask the interrupts on probe in the AMD pinctrl driver,
affecting Microsoft surface"
* tag 'pinctrl-v5.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
pinctrl: amd: disable and mask interrupts on probe
pinctrl: stm32: use valid pin identifier in stm32_pinctrl_resume()
Revert "pinctrl: bcm: ns: support updated DT binding as syscon subnode"
dt-bindings: pinctrl: brcm,ns-pinmux: drop unneeded CRU from example
Revert "dt-bindings: pinctrl: bcm4708-pinmux: rework binding to use syscon"
Originally, software only supported redirecting at most one PEBS event to
Intel PT (PEBS-via-PT) because it was not able to differentiate one event
from another. To overcome that, add support for the
PERF_RECORD_AUX_OUTPUT_HW_ID side-band event.
Committer notes:
Cast the pointer arg to for_each_set_bit() to (unsigned long *), to fix
the build on 32-bit systems.
Reviewed-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: x86@kernel.org
Link: http://lore.kernel.org/lkml/20210907163903.11820-4-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
My intel-ixp42x-welltech-epbx100 no longer boot since 4.14.
This is due to commit 463dbba4d1 ("ARM: 9104/2: Fix Keystone 2 kernel
mapping regression")
which forgot to handle CONFIG_CPU_ENDIAN_BE32 as possible BE config.
Suggested-by: Krzysztof Hałasa <khalasa@piap.pl>
Fixes: 463dbba4d1 ("ARM: 9104/2: Fix Keystone 2 kernel mapping regression")
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
mv_init_host() propagates the value returned by mv_chip_id() which in turn
gets propagated by mv_pci_init_one() and hits local_pci_probe().
During the process of driver probing, the probe function should return < 0
for failure, otherwise, the kernel will treat value > 0 as success.
Since this is a bug rather than a recoverable runtime error we should
use dev_alert() instead of dev_err().
Signed-off-by: Zheyu Ma <zheyuma97@gmail.com>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
This reverts commit 110860541f.
Converting the "secretmem_users" counter to a refcount is incorrect,
because a refcount is special in zero and can't just be incremented (but
a count of users is not, and "no users" is actually perfectly valid and
not a sign of a free'd resource).
Reported-by: syzbot+75639e6a0331cd61d3e2@syzkaller.appspotmail.com
Cc: Jordy Zomer <jordy@pwning.systems>
Cc: Kees Cook <keescook@chromium.org>,
Cc: Jordy Zomer <jordy@jordyzomer.github.io>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull autofs fix from Al Viro:
"Fix for a braino of mine (in getting rid of open-coded
dentry_path_raw() in autofs a couple of cycles ago).
Mea culpa... Obvious -stable fodder"
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
autofs: fix wait name hash calculation in autofs_wait()
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Merge tag 'sched_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fix from Borislav Petkov:
"Reset clang's Shadow Call Stack on hotplug to prevent it from
overflowing"
* tag 'sched_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
sched/scs: Reset the shadow stack when idle_task_exit
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Merge tag 'x86_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Borislav Petkov:
"A single change adding Dave Hansen to our maintainers team"
* tag 'x86_urgent_for_v5.15_rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add Dave Hansen to the x86 maintainer team
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Merge tag '5.15-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd
Pull ksmbd fixes from Steve French:
"Ten fixes for the ksmbd kernel server, for improved security and
additional buffer overflow checks:
- a security improvement to session establishment to reduce the
possibility of dictionary attacks
- fix to ensure that maximum i/o size negotiated in the protocol is
not less than 64K and not more than 8MB to better match expected
behavior
- fix for crediting (flow control) important to properly verify that
sufficient credits are available for the requested operation
- seven additional buffer overflow, buffer validation checks"
* tag '5.15-rc6-ksmbd-fixes' of git://git.samba.org/ksmbd:
ksmbd: add buffer validation in session setup
ksmbd: throttle session setup failures to avoid dictionary attacks
ksmbd: validate OutputBufferLength of QUERY_DIR, QUERY_INFO, IOCTL requests
ksmbd: validate credit charge after validating SMB2 PDU body size
ksmbd: add buffer validation for smb direct
ksmbd: limit read/write/trans buffer size not to exceed 8MB
ksmbd: validate compound response buffer
ksmbd: fix potencial 32bit overflow from data area check in smb2_write
ksmbd: improve credits management
ksmbd: add validation in smb2_ioctl
Ten fixes, seven of which are in drivers. The core fixes are one to
fix a potential crash on resume, one to sort out our reference count
releases to avoid releasing in-use modules and one to adjust the cmd
per lun calculation to avoid an overflow in hyper-v.
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:
"Ten fixes, seven of which are in drivers.
The core fixes are one to fix a potential crash on resume, one to sort
out our reference count releases to avoid releasing in-use modules and
one to adjust the cmd per lun calculation to avoid an overflow in
hyper-v"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: ufs: ufs-pci: Force a full restore after suspend-to-disk
scsi: qla2xxx: Fix unmap of already freed sgl
scsi: qla2xxx: Fix a memory leak in an error path of qla2x00_process_els()
scsi: qla2xxx: Return -ENOMEM if kzalloc() fails
scsi: sd: Fix crashes in sd_resume_runtime()
scsi: mpi3mr: Fix duplicate device entries when scanning through sysfs
scsi: core: Put LLD module refcnt after SCSI device is released
scsi: storvsc: Fix validation for unsolicited incoming packets
scsi: iscsi: Fix set_param() handling
scsi: core: Fix shost->cmd_per_lun calculation in scsi_add_host_with_dma()
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Merge tag 'block-5.15-2021-10-22' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"Fix for the cgroup code not ussing irq safe stats updates, and one fix
for an error handling condition in add_partition()"
* tag 'block-5.15-2021-10-22' of git://git.kernel.dk/linux-block:
block: fix incorrect references to disk objects
blk-cgroup: blk_cgroup_bio_start() should use irq-safe operations on blkg->iostat_cpu
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Merge tag 'io_uring-5.15-2021-10-22' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Two fixes for the max workers limit API that was introduced this
series: one fix for an issue with that code, and one fixing a linked
timeout regression in this series"
* tag 'io_uring-5.15-2021-10-22' of git://git.kernel.dk/linux-block:
io_uring: apply worker limits to previous users
io_uring: fix ltimeout unprep
io_uring: apply max_workers limit to all future users
io-wq: max_worker fixes
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Merge tag 'fuse-fixes-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse fixes from Miklos Szeredi:
"Syzbot discovered a race in case of reusing the fuse sb (introduced in
this cycle).
Fix it by doing the s_fs_info initialization at the proper place"
* tag 'fuse-fixes-5.15-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: clean up error exits in fuse_fill_super()
fuse: always initialize sb->s_fs_info
fuse: clean up fuse_mount destruction
fuse: get rid of fuse_put_super()
fuse: check s_root when destroying sb
