I found it missed to copy the immediate constant when it moves the
register value. This could result in a wrong type inference since the
address for the per-cpu variable would be 0 always.
Fixes: eb9190afae ("perf annotate-data: Handle ADD instructions")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240821065408.285548-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Remove dependence on libcap. libcap is only used to query whether a
capability is supported, which is just 1 capget system call.
If the capget system call fails, fall back on root permission
checking. Previously if libcap fails then the permission is assumed
not present which may be pessimistic/wrong.
Add a used_root out argument to perf_cap__capable to say whether the
fall back root check was used. This allows the correct error message,
"root" vs "users with the CAP_PERFMON or CAP_SYS_ADMIN capability", to
be selected.
Tidy uses of perf_cap__capable so that tests aren't repeated if capget
isn't supported.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Changbin Du <changbin.du@huawei.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@arm.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linux.dev>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Oliver Upton <oliver.upton@linux.dev>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240806220614.831914-1-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The previous attempt fixed the build on debian:experimental-x-mipsel,
but when building on a larger set of containers I noticed it broke the
build on some other 32-bit architectures such as:
42 7.87 ubuntu:18.04-x-arm : FAIL gcc version 7.5.0 (Ubuntu/Linaro 7.5.0-3ubuntu1~18.04)
builtin-daemon.c: In function 'cmd_session_list':
builtin-daemon.c:692:16: error: format '%llu' expects argument of type 'long long unsigned int', but argument 4 has type 'long int' [-Werror=format=]
fprintf(out, "%c%" PRIu64,
^~~~~
builtin-daemon.c:694:13:
csv_sep, (curr - daemon->start) / 60);
~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from builtin-daemon.c:3:0:
/usr/arm-linux-gnueabihf/include/inttypes.h:105:34: note: format string is defined here
# define PRIu64 __PRI64_PREFIX "u"
So lets cast that time_t (32-bit/64-bit) to uint64_t to make sure it
builds everywhere.
Fixes: 4bbe600293 ("perf daemon: Fix the build on 32-bit architectures")
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lore.kernel.org/lkml/ZsPmldtJ0D9Cua9_@x1
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Add it to the record.sh shell test to verify if it tracks cgroup
information correctly. It records with --all-cgroups option can check
if it has PERF_RECORD_CGROUP and the names are not "unknown".
$ sudo ./perf test -vv 95
95: perf record tests:
--- start ---
test child forked, pid 2871922
169c90-169cd0 g test_loop
perf does have symbol 'test_loop'
Basic --per-thread mode test
Basic --per-thread mode test [Success]
Register capture test
Register capture test [Success]
Basic --system-wide mode test
Basic --system-wide mode test [Success]
Basic target workload test
Basic target workload test [Success]
Branch counter test
branch counter feature not supported on all core PMUs (/sys/bus/event_source/devices/cpu) [Skipped]
Cgroup sampling test
Cgroup sampling test [Success]
---- end(0) ----
95: perf record tests : Ok
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240818212948.2873156-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The recent change in 'struct perf_tool' constification broke the cgroup
and/or namespace tracking by resetting tool fields. It should set the
values after perf_tool__init().
Fixes: cecb1cf154 ("perf record: Use perf_tool__init()")
Reviewed-by: Ian Rogers <irogers@google.com>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240818212948.2873156-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The handling of mmap and mmap2 events is near identical. Add a common
helper function and call that by the two event handling functions.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-10-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
There are repipe, build ID and JIT dump variants of the mmap and mmap2
repipe functions. The organization doesn't allow JIT dump to work with
build ID injection and the structure is less than clear. Combine the
function and enable the different behaviors based on ifs.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-9-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It is clearer to have a single enum that determines how build ids are
injected, it also allows for future extension.
Set the header build ID feature whether lazy or all are generated,
previously only the lazy case would set it.
Allow parsing of known build IDs for either the lazy or all cases.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-8-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Test recording of call-graphs and injecting --build-all. Add/expand
trap handler.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-7-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Allows evsel__id_hdr_size() to be used when the evsel is const.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-6-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The passed dso_id is copied and so is never an out argument. Remove
its mutability.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Make it clearer the argument is just being used as a string.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-4-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
map__init() is only used internally so make it static. Assume memory is
zero initialized, which will better support adding fields to struct
map in the future and was already the case for map__new2.
To reduce complexity, change set_priv and set_erange_warned to not take
a value to assign as they always assign true.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-3-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Make sure the memset of a synthesized event only zeros the necessary
tracing data part of the event, as a full event can be over 4kb in
size.
Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Anne Macedo <retpolanne@posteo.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Casey Chen <cachen@purestorage.com>
Cc: Chaitanya S Prakash <chaitanyas.prakash@arm.com>
Cc: Colin Ian King <colin.i.king@gmail.com>
Cc: Dominique Martinet <asmadeus@codewreck.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jann Horn <jannh@google.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Sun Haiyong <sunhaiyong@loongson.cn>
Cc: Weilin Wang <weilin.wang@intel.com>
Cc: Yang Jihong <yangjihong1@huawei.com>
Cc: Yunseong Kim <yskelg@gmail.com>
Cc: Ze Gao <zegao2021@gmail.com>
Link: https://lore.kernel.org/r/20240817064442.2152089-2-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The 32-bit arm build system will complain:
tools/perf/util/python.c:75:28: error: field ‘sample’ has incomplete type
75 | struct perf_sample sample;
However, arm64 build system doesn't complain this.
The root cause is arm64 define "HAVE_KVM_STAT_SUPPORT := 1" in
tools/perf/arch/arm64/Makefile, but arm arch doesn't define this. This
will lead to kvm-stat.h include other header files on arm64 build
system, especially "util/sample.h" for util/python.c.
This will try to directly include "util/sample.h" for "util/python.c" to
avoid such build issue on arm platform.
Signed-off-by: Xu Yang <xu.yang_2@nxp.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: imx@lists.linux.dev
Link: https://lore.kernel.org/r/20240819023403.201324-1-xu.yang_2@nxp.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
After trying all possibilities with DWARF and instruction tracking.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-10-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sometimes it matches a variable in the inner scope but it fails because
the actual access can be on a different type. Let's try variables in
every scope and choose the best one using is_better_type().
I have an example with update_blocked_averages(), at first it found a
variable (__mptr) but it's a void pointer. So it moved on to the upper
scope and found another variable (cfs_rq).
$ perf --debug type-profile annotate --data-type --stdio
...
-----------------------------------------------------------
find data type for 0x140(reg14) at update_blocked_averages+0x2db
CU for kernel/sched/fair.c (die:0x12dd892)
frame base: cfa=1 fbreg=7
found "__mptr" (die: 0x13022f1) in scope=4/4 (die: 0x13022e8) failed: no/void pointer
variable location: base=reg14, offset=0x140
type='void*' size=0x8 (die:0x12dd8f9)
found "cfs_rq" (die: 0x1301721) in scope=3/4 (die: 0x130171c) type_offset=0x140
variable location: reg14
type='struct cfs_rq' size=0x1c0 (die:0x12e37e5)
final type: type='struct cfs_rq' size=0x1c0 (die:0x12e37e5)
IIUC the scope is like below:
1: update_blocked_averages
2: __update_blocked_fair
3: for_each_leaf_cfs_rq_safe
4: list_entry -> (container_of)
The container_of is implemented like:
#define container_of(ptr, type, member) ({ \
void *__mptr = (void *)(ptr); \
static_assert(__same_type(*(ptr), ((type *)0)->member) || \
__same_type(*(ptr), void), \
"pointer type mismatch in container_of()"); \
((type *)(__mptr - offsetof(type, member))); })
That's why we see the __mptr variable first but it failed since it has
no type information.
Then for_each_leaf_cfs_rq_safe() is defined as
#define for_each_leaf_cfs_rq_safe(rq, cfs_rq, pos) \
list_for_each_entry_safe(cfs_rq, pos, &rq->leaf_cfs_rq_list, \
leaf_cfs_rq_list)
Note that the access was 0x140(r14). And the cfs_rq has
leaf_cfs_rq_list at the 0x140. So it converts the list_head pointer to
a pointer to struct cfs_rq here.
$ pahole --hex -C cfs_rq vmlinux | grep 140
struct cfs_rq struct list_head leaf_cfs_rq_list; /* 0x140 0x10 */
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-9-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Sometimes more than one variables are located in the same register or a
stack slot. Or it can overwrite existing information with others. I
found this is not helpful in some cases so it needs to update the type
information from the variable only if it's better.
But it's hard to know which one is better, so we needs heuristics. :)
As it deals with memory accesses, the location should have a pointer or
something similar (like array or reference). So if it had an integer
type and a variable is a pointer, we can take the variable's type to
resolve the target of the access.
If it has a pointer type and a variable with the same location has a
different pointer type, it'll take one with bigger target type. This
can be useful when the target type embeds a smaller type (like list
header or RB-tree node) at the beginning so their location is same.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-8-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It treats pointers and arrays in the same way. Let's add the helper and
use it when it checks if it needs a pointer.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-7-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
So that it can return enum variable_match_type to be propagated to the
find_data_type_die(). Also update the debug message to show the result
of the check_matching_type().
chk [dd] reg0 offset=0 ok=1 kind=1 : Good!
or
chk [177] reg4 offset=0x138 ok=0 kind=0 cfa : no type information
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-6-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
So that it can show a proper debug message in the right place. The
check_variable() is used in other places which don't want to print the
message.
$ perf --debug type-profile annotate --data-type
Before:
-----------------------------------------------------------
find data type for 0x140(reg14) at update_blocked_averages+0x2db
CU for kernel/sched/fair.c (die:0x12dd892)
frame base: cfa=1 fbreg=7
no pointer or no type <<<--- removed
check variable "__mptr" failed (die: 0x13022f1)
variable location: base=reg14, offset=0x140
type='void*' size=0x8 (die:0x12dd8f9)
After:
-----------------------------------------------------------
find data type for 0x140(reg14) at update_blocked_averages+0x2db
CU for kernel/sched/fair.c (die:0x12dd892)
frame base: cfa=1 fbreg=7
found "__mptr" (die: 0x13022f1) in scope=4/4 (die: 0x13022e8) failed: no/void pointer <<<--- here
variable location: base=reg14, offset=0x140
type='void*' size=0x8 (die:0x12dd8f9)
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-5-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
And let check_variable() return the enum value so that callers can know
what was the problem. This will be used by the later patch to update
the statistics correctly and print the error message in a right place.
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-4-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
The location list will have entries with half-open addressing like
[start, end) which means it doesn't include the end address. So it
should skip entries at the end address and match to the next entry.
An example location list looks like this (from readelf -wo):
00237876 ffffffff8110d32b (base address)
0023787f v000000000000000 v000000000000002 views at 00237868 for:
ffffffff8110d32b ffffffff8110d4eb (DW_OP_reg3 (rbx)) <<<--- 1
00237885 v000000000000002 v000000000000000 views at 0023786a for:
ffffffff8110d4eb ffffffff8110d50b (DW_OP_reg14 (r14)) <<<--- 2
0023788c v000000000000000 v000000000000001 views at 0023786c for:
ffffffff8110d50b ffffffff8110d7c4 (DW_OP_reg3 (rbx))
00237893 v000000000000000 v000000000000000 views at 0023786e for:
ffffffff8110d806 ffffffff8110d854 (DW_OP_reg3 (rbx))
0023789a v000000000000000 v000000000000000 views at 00237870 for:
ffffffff8110d876 ffffffff8110d88e (DW_OP_reg3 (rbx))
The first entry at 0023787f has [8110d32b, 8110d4eb) (omitting the
ffffffff at the beginning), and the second one has [8110d4eb, 8110d50b).
Fixes: 2bc3cf575a ("perf annotate-data: Improve debug message with location info")
Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-3-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
It missed to call check_allowed_ops() in __die_collect_vars_cb() so it
can take variables with complex location expression incorrectly.
For example, I found some variable has this expression.
015d8df8 ffffffff81aacfb3 (base address)
015d8e01 v000000000000004 v000000000000000 views at 015d8df2 for:
ffffffff81aacfb3 ffffffff81aacfd2 (DW_OP_fbreg: -176; DW_OP_deref;
DW_OP_plus_uconst: 332; DW_OP_deref_size: 4;
DW_OP_lit1; DW_OP_shra; DW_OP_const1u: 64;
DW_OP_minus; DW_OP_stack_value)
015d8e14 v000000000000000 v000000000000000 views at 015d8df4 for:
ffffffff81aacfd2 ffffffff81aacfd7 (DW_OP_reg3 (rbx))
015d8e19 v000000000000000 v000000000000000 views at 015d8df6 for:
ffffffff81aacfd7 ffffffff81aad020 (DW_OP_fbreg: -176; DW_OP_deref;
DW_OP_plus_uconst: 332; DW_OP_deref_size: 4;
DW_OP_lit1; DW_OP_shra; DW_OP_const1u: 64;
DW_OP_minus; DW_OP_stack_value)
015d8e2c <End of list>
It looks like '((int *)(-176(%rbp) + 332) >> 1) - 64' but the current
code thought it's just -176(%rbp) and processed the variable incorrectly.
It should reject such a complex expression if check_allowed_ops()
doesn't like it. :)
Fixes: 932dcc2c39 ("perf dwarf-aux: Add die_collect_vars()")
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240816235840.2754937-2-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
To pick up the latest perf-tools merge for 6.11, i.e. to have the
current perf tools branch that is getting into 6.11 with the
perf-tools-next that is geared towards 6.12.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Currently we'll only print metric headers for metric leader in
aggregration mode. This will make `perf iostat` header not shown
since it'll aggregrated globally but don't have metric events:
root@ubuntu204:/home/yang/linux/tools/perf# ./perf stat --iostat --timeout 1000
Performance counter stats for 'system wide':
port
0000:00 0 0 0 0
0000:80 0 0 0 0
[...]
Fix this by excluding the iostat in the check of printing metric
headers. Then we can see the headers:
root@ubuntu204:/home/yang/linux/tools/perf# ./perf stat --iostat --timeout 1000
Performance counter stats for 'system wide':
port Inbound Read(MB) Inbound Write(MB) Outbound Read(MB) Outbound Write(MB)
0000:00 0 0 0 0
0000:80 0 0 0 0
[...]
Fixes: 193a9e3020 ("perf stat: Don't display metric header for non-leader uncore events")
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jonathan Cameron <jonathan.cameron@huawei.com>
Cc: Junhao He <hejunhao3@huawei.com>
Cc: linuxarm@huawei.com
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shameerali Kolothum Thodi <shameerali.kolothum.thodi@huawei.com>
Cc: Zeng Tao <prime.zeng@hisilicon.com>
Link: https://lore.kernel.org/r/20240802065800.48774-1-yangyicong@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
When perf_time__parse_str() fails in perf_sched__timehist(),
need to free session that was previously created, fix it.
Fixes: 853b740711 ("perf sched timehist: Add option to specify time window of interest")
Signed-off-by: Yang Jihong <yangjihong@bytedance.com>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: David Ahern <dsa@cumulusnetworks.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20240806023533.1316348-1-yangjihong@bytedance.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'block-6.11-20240824' of git://git.kernel.dk/linux
Pull block fixes from Jens Axboe:
- Fix corruption issues with s390/dasd (Eric, Stefan)
- Fix a misuse of non irq locking grab of a lock (Li)
- MD pull request with a single data corruption fix for raid1 (Yu)
* tag 'block-6.11-20240824' of git://git.kernel.dk/linux:
block: Fix lockdep warning in blk_mq_mark_tag_wait
md/raid1: Fix data corruption for degraded array with slow disk
s390/dasd: fix error recovery leading to data corruption on ESE devices
s390/dasd: Remove DMA alignment
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Merge tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux
Pull io_uring fixes from Jens Axboe:
- Fix a comment in the uapi header using the wrong member name (Caleb)
- Fix KCSAN warning for a debug check in sqpoll (me)
- Two more NAPI tweaks (Olivier)
* tag 'io_uring-6.11-20240824' of git://git.kernel.dk/linux:
io_uring: fix user_data field name in comment
io_uring/sqpoll: annotate debug task == current with data_race()
io_uring/napi: remove duplicate io_napi_entry timeout assignation
io_uring/napi: check napi_enabled in io_napi_add() before proceeding
Fix a Bang-bang thermal governor issue causing it to fail to reset the
state of cooling devices if they are "on" to start with, but the thermal
zone temperature is always below the corresponding trip point (Rafael
Wysocki).
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Merge tag 'thermal-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control fix from Rafael Wysocki:
"Fix a Bang-bang thermal governor issue causing it to fail to reset the
state of cooling devices if they are 'on' to start with, but the
thermal zone temperature is always below the corresponding trip point
(Rafael Wysocki)"
* tag 'thermal-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
thermal: gov_bang_bang: Use governor_data to reduce overhead
thermal: gov_bang_bang: Add .manage() callback
thermal: gov_bang_bang: Split bang_bang_control()
thermal: gov_bang_bang: Call __thermal_cdev_update() directly
Fix an issue related to the ACPI EC device handling that causes the
_REG control method to be evaluated for EC operation regions that are
not expected to be used which confuses the platform firmware and
provokes various types of misbehavior on some systems (Rafael Wysocki).
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Merge tag 'acpi-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fix from Rafael Wysocki:
"Fix an issue related to the ACPI EC device handling that causes the
_REG control method to be evaluated for EC operation regions that are
not expected to be used.
This confuses the platform firmware and provokes various types of
misbehavior on some systems (Rafael Wysocki)"
* tag 'acpi-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: EC: Evaluate _REG outside the EC scope more carefully
ACPICA: Add a depth argument to acpi_execute_reg_methods()
Revert "ACPI: EC: Evaluate orphan _REG under EC device"
Commit f467fee48d ("block: move the dax flag to queue_limits") broke
the DAX tests by skipping over the legacy pmem mapping pages case.
- Set the DAX flag in this case as well.
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Merge tag 'libnvdimm-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fix from Ira Weiny:
"Commit f467fee48d ("block: move the dax flag to queue_limits") broke
the DAX tests by skipping over the legacy pmem mapping pages case.
Set the DAX flag in this case as well"
* tag 'libnvdimm-fixes-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm/pmem: Set dax flag for all 'PFN_MAP' cases
- Fix '-Os' Rust 1.80.0+ builds adding more intrinsics (also tweaked
in upstream Rust for the upcoming 1.82.0).
- Fix support for the latest version of rust-analyzer due to a change
on rust-analyzer config file semantics (considered a fix since most
developers use the latest version of the tool, which is the only one
actually supported by upstream). I am discussing stability of the
config file with upstream -- they may be able to start versioning it.
- Fix GCC 14 builds due to '-fmin-function-alignment' not skipped for
libclang (bindgen).
- A couple Kconfig fixes around '{RUSTC,BINDGEN}_VERSION_TEXT' to
suppress error messages in a foreign architecture chroot and to use a
proper default format.
- Clean 'rust-analyzer' target warning due to missing recursive make
invocation mark.
- Clean Clippy warning due to missing indentation in docs.
- Clean LLVM 19 build warning due to removed 3dnow feature upstream.
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Merge tag 'rust-fixes-6.11' of https://github.com/Rust-for-Linux/linux
Pull rust fixes from Miguel Ojeda:
- Fix '-Os' Rust 1.80.0+ builds adding more intrinsics (also tweaked in
upstream Rust for the upcoming 1.82.0).
- Fix support for the latest version of rust-analyzer due to a change
on rust-analyzer config file semantics (considered a fix since most
developers use the latest version of the tool, which is the only one
actually supported by upstream). I am discussing stability of the
config file with upstream -- they may be able to start versioning it.
- Fix GCC 14 builds due to '-fmin-function-alignment' not skipped for
libclang (bindgen).
- A couple Kconfig fixes around '{RUSTC,BINDGEN}_VERSION_TEXT' to
suppress error messages in a foreign architecture chroot and to use a
proper default format.
- Clean 'rust-analyzer' target warning due to missing recursive make
invocation mark.
- Clean Clippy warning due to missing indentation in docs.
- Clean LLVM 19 build warning due to removed 3dnow feature upstream.
* tag 'rust-fixes-6.11' of https://github.com/Rust-for-Linux/linux:
rust: x86: remove `-3dnow{,a}` from target features
kbuild: rust-analyzer: mark `rust_is_available.sh` invocation as recursive
rust: add intrinsics to fix `-Os` builds
kbuild: rust: skip -fmin-function-alignment in bindgen flags
rust: Support latest version of `rust-analyzer`
rust: macros: indent list item in `module!`'s docs
rust: fix the default format for CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT
rust: suppress error messages from CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT
* The text patching global icache flush has been reintroduced.
* A fix for the syscall entry code to correctly initialize a0, which
manifests as a bug in strace.
* XIP kernels now map the entire kernel, which fixes boot under at least
DEBUG_VIRTUAL=y.
* The acpi_early_node_map initializer now initializes all nodes.
* A fix for a OOB access in the Andes vendor extension probing code.
* A new key for scalar misaligned access performance in hwprobe, which
correctly treat the values as an enum (as opposed to a bitmap).
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Merge tag 'riscv-for-linus-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull RISC-V fixes from Palmer Dabbelt:
- reintroduce the text patching global icache flush
- fix syscall entry code to correctly initialize a0, which manifested
as a strace bug
- XIP kernels now map the entire kernel, which fixes boot under at
least DEBUG_VIRTUAL=y
- initialize all nodes in the acpi_early_node_map initializer
- fix OOB access in the Andes vendor extension probing code
- A new key for scalar misaligned access performance in hwprobe, which
correctly treat the values as an enum (as opposed to a bitmap)
* tag 'riscv-for-linus-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
riscv: Fix out-of-bounds when accessing Andes per hart vendor extension array
RISC-V: hwprobe: Add SCALAR to misaligned perf defines
RISC-V: hwprobe: Add MISALIGNED_PERF key
RISC-V: ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE
riscv: change XIP's kernel_map.size to be size of the entire kernel
riscv: entry: always initialize regs->a0 to -ENOSYS
riscv: Re-introduce global icache flush in patch_text_XXX()
- Prevent a NULL pointer dereference in the error path of RTLA tool
- Fix an infinite loop bug when reading from the ring buffer when closed.
If there's a thread trying to read the ring buffer and it gets closed
by another thread, the one reading will go into an infinite loop
when the buffer is empty instead of exiting back to user space.
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Merge tag 'trace-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull tracing fixes from Steven Rostedt:
"A couple of fixes for tracing:
- Prevent a NULL pointer dereference in the error path of RTLA tool
- Fix an infinite loop bug when reading from the ring buffer when
closed. If there's a thread trying to read the ring buffer and it
gets closed by another thread, the one reading will go into an
infinite loop when the buffer is empty instead of exiting back to
user space"
* tag 'trace-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
rtla/osnoise: Prevent NULL dereference in error handling
tracing: Return from tracing_buffers_read() if the file has been closed
Contains two bug fixes for a memory corruption bug and a memory leak bug
in the DCP trusted keys type. Just as a remainder DCP was a crypto
coprocessor in i.MX SoC's.
BR, Jarkko
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Merge tag 'keys-trusted-next-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd
Pull key fixes from Jarkko Sakkinen:
"Two bug fixes for a memory corruption bug and a memory leak bug in the
DCP trusted keys type.
Just as a reminder DCP was a crypto coprocessor in i.MX SoCs"
* tag 'keys-trusted-next-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
KEYS: trusted: dcp: fix leak of blob encryption key
KEYS: trusted: fix DCP blob payload length assignment
Including:
- Bring back a lost return statement in io-page-fault code
- Remove an unused function declaration
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Merge tag 'iommu-fixes-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu fixes from Joerg Roedel:
- Bring back a lost return statement in io-page-fault code
- Remove an unused function declaration
* tag 'iommu-fixes-v6.11-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
iommu: Remove unused declaration iommu_sva_unbind_gpasid()
iommu: Restore lost return in iommu_report_device_fault()
- add the shutdown() callback to gpio-mlxbf3 in order to disable
interrupts during graceful reboot
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Merge tag 'gpio-fixes-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fix from Bartosz Golaszewski:
- add the shutdown() callback to gpio-mlxbf3 in order to disable
interrupts during graceful reboot
* tag 'gpio-fixes-for-v6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: mlxbf3: Support shutdown() function
All small fixes, mostly for usual suspects, HD-audio and USB-audio
device-specific fixes / quirks. The Cirrus codec support took the
update of SPI header as well. Other than that, there is a regression
fix in the sanity check of ALSA timer code.
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Merge tag 'sound-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"All small fixes, mostly for usual suspects, HD-audio and USB-audio
device-specific fixes / quirks. The Cirrus codec support took the
update of SPI header as well. Other than that, there is a regression
fix in the sanity check of ALSA timer code"
* tag 'sound-6.11-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: hda/tas2781: Use correct endian conversion
ALSA: usb-audio: Support Yamaha P-125 quirk entry
ALSA: hda: cs35l41: Remove redundant call to hda_cs_dsp_control_remove()
ALSA: hda: cs35l56: Remove redundant call to hda_cs_dsp_control_remove()
ALSA: hda/tas2781: fix wrong calibrated data order
ALSA: usb-audio: Add delay quirk for VIVO USB-C-XE710 HEADSET
ALSA: hda/realtek: Add support for new HP G12 laptops
ALSA: hda/realtek: Fix noise from speakers on Lenovo IdeaPad 3 15IAU7
ALSA: timer: Relax start tick time check for slave timer elements
spi: Add empty versions of ACPI functions
mediatek:
- fix cursor crash
amdgpu:
- Fix MES ring buffer overflow
- DCN 3.5 fix
- DCN 3.2.1 fix
- DP MST fix
- Cursor fixes
- JPEG fixes
- Context ops validation
- MES 12 fixes
- VCN 5.0 fix
- HDP fix
panel:
- dt bindings style fix
- orientation quirks
rockchip:
- inno-hdmi: fix infoframe upload
v3d:
- fix OOB access in v3d_csd_job_run()
xe:
- Validate user fence during creation
- Fix use after free when client stats are captured
- SRIOV fixes
- Runtime PM fixes
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Merge tag 'drm-fixes-2024-08-16' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
"Weekly drm fixes, mostly amdgpu and xe. The larger amdgpu fix is for a
new IP block introduced in rc1, so should be fine. The xe fixes
contain some missed fixes from the end of the previous round along
with some fixes which required precursor changes, but otherwise
everything seems fine,
mediatek:
- fix cursor crash
amdgpu:
- Fix MES ring buffer overflow
- DCN 3.5 fix
- DCN 3.2.1 fix
- DP MST fix
- Cursor fixes
- JPEG fixes
- Context ops validation
- MES 12 fixes
- VCN 5.0 fix
- HDP fix
panel:
- dt bindings style fix
- orientation quirks
rockchip:
- inno-hdmi: fix infoframe upload
v3d:
- fix OOB access in v3d_csd_job_run()
xe:
- Validate user fence during creation
- Fix use after free when client stats are captured
- SRIOV fixes
- Runtime PM fixes"
* tag 'drm-fixes-2024-08-16' of https://gitlab.freedesktop.org/drm/kernel: (37 commits)
drm/xe: Hold a PM ref when GT TLB invalidations are inflight
drm/xe: Drop xe_gt_tlb_invalidation_wait
drm/xe: Add xe_gt_tlb_invalidation_fence_init helper
drm/xe/pf: Fix VF config validation on multi-GT platforms
drm/xe: Build PM into GuC CT layer
drm/xe/vf: Fix register value lookup
drm/xe: Fix use after free when client stats are captured
drm/xe: Take a ref to xe file when user creates a VM
drm/xe: Add ref counting for xe_file
drm/xe: Move part of xe_file cleanup to a helper
drm/xe: Validate user fence during creation
drm/rockchip: inno-hdmi: Fix infoframe upload
drm/amd/amdgpu: add HDP_SD support on gc 12.0.0/1
drm/amdgpu: Update kmd_fw_shared for VCN5
drm/amd/amdgpu: command submission parser for JPEG
drm/amdgpu/mes12: fix suspend issue
drm/amdgpu/mes12: sw/hw fini for unified mes
drm/amdgpu/mes12: configure two pipes hardware resources
drm/amdgpu/mes12: adjust mes12 sw/hw init for multiple pipes
drm/amdgpu/mes12: add mes pipe switch support
...
After running once, the for_each_trip_desc() loop in
bang_bang_manage() is pure needless overhead because it is not going to
make any changes unless a new cooling device has been bound to one of
the trips in the thermal zone or the system is resuming from sleep.
For this reason, make bang_bang_manage() set governor_data for the
thermal zone and check it upfront to decide whether or not it needs to
do anything.
However, governor_data needs to be reset in some cases to let
bang_bang_manage() know that it should walk the trips again, so add an
.update_tz() callback to the governor and make the core additionally
invoke it during system resume.
To avoid affecting the other users of that callback unnecessarily, add
a special notification reason for system resume, THERMAL_TZ_RESUME, and
also pass it to __thermal_zone_device_update() called during system
resume for consistency.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/2285575.iZASKD2KPV@rjwysocki.net
After recent changes, the Bang-bang governor may not adjust the
initial configuration of cooling devices to the actual situation.
Namely, if a cooling device bound to a certain trip point starts in
the "on" state and the thermal zone temperature is below the threshold
of that trip point, the trip point may never be crossed on the way up
in which case the state of the cooling device will never be adjusted
because the thermal core will never invoke the governor's
.trip_crossed() callback. [Note that there is no issue if the zone
temperature is at the trip threshold or above it to start with because
.trip_crossed() will be invoked then to indicate the start of thermal
mitigation for the given trip.]
To address this, add a .manage() callback to the Bang-bang governor
and use it to ensure that all of the thermal instances managed by the
governor have been initialized properly and the states of all of the
cooling devices involved have been adjusted to the current zone
temperature as appropriate.
Fixes: 530c932bdf ("thermal: gov_bang_bang: Use .trip_crossed() instead of .throttle()")
Link: https://lore.kernel.org/linux-pm/1bfbbae5-42b0-4c7d-9544-e98855715294@piie.net/
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Link: https://patch.msgid.link/8419356.T7Z3S40VBb@rjwysocki.net
Move the setting of the thermal instance target state from
bang_bang_control() into a separate function that will be also called
in a different place going forward.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/3313587.aeNJFYEL58@rjwysocki.net
Instead of clearing the "updated" flag for each cooling device
affected by the trip point crossing in bang_bang_control() and
walking all thermal instances to run thermal_cdev_update() for all
of the affected cooling devices, call __thermal_cdev_update()
directly for each of them.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Kästle <peter@piie.net>
Reviewed-by: Zhang Rui <rui.zhang@intel.com>
Cc: 6.10+ <stable@vger.kernel.org> # 6.10+
Link: https://patch.msgid.link/13583081.uLZWGnKmhe@rjwysocki.net
