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| author | Kan Liang <kan.liang@linux.intel.com> | 2021-02-05 08:01:52 -0800 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2021-02-18 16:07:06 -0300 |
| commit | fbefe9c2f87fd392f809f7b78e6d54944800a148 (patch) | |
| tree | 160f6ad3e67c431b429ed9180308e8d0d1a86762 /tools/perf/util/event.h | |
| parent | c840cbfeffcbf2a0fa3856e2ed5ea5c622b9e6b2 (diff) | |
| download | linux-fbefe9c2f87fd392f809f7b78e6d54944800a148.tar.bz2 | |
perf tools: Support arch specific PERF_SAMPLE_WEIGHT_STRUCT processing
For X86, the var2_w field of PERF_SAMPLE_WEIGHT_STRUCT stands for the
instruction latency. Current perf forces the var2_w to the data->ins_lat
in the generic code. It works well for now because X86 is the only
architecture that supports the PERF_SAMPLE_WEIGHT_STRUCT, but it may
bring problems once other architectures support the sample type. For
example, the var2_w may be used to capture something else on PowerPC.
Create two architecture specific functions to parse and synthesize the
weight related samples. Move the X86 specific codes to the X86 version
functions. Other architectures can implement their own functions later
separately.
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Jajeev <atrajeev@linux.vnet.ibm.com>
Cc: Jin Yao <yao.jin@linux.intel.com>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: http://lore.kernel.org/lkml/1612540912-6562-1-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/event.h')
| -rw-r--r-- | tools/perf/util/event.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/tools/perf/util/event.h b/tools/perf/util/event.h index 4a3b5b6478d8..e3150a628782 100644 --- a/tools/perf/util/event.h +++ b/tools/perf/util/event.h @@ -421,4 +421,7 @@ extern unsigned int proc_map_timeout; #define PAGE_SIZE_NAME_LEN 32 char *get_page_size_name(u64 size, char *str); +void arch_perf_parse_sample_weight(struct perf_sample *data, const __u64 *array, u64 type); +void arch_perf_synthesize_sample_weight(const struct perf_sample *data, __u64 *array, u64 type); + #endif /* __PERF_RECORD_H */ |