diff options
| author |   Anshuman Khandual <anshuman.khandual@arm.com> | 2022-09-06 14:14:14 +0530 |
|---|---|---|
| committer |   Peter Zijlstra <peterz@infradead.org> | 2022-09-07 21:54:00 +0200 |
| commit | 03b02db93be407103c385814033633364674a6f6 (patch) | |
| tree | f2811ca21b2318a22656dd771c90a70f7336cd00 /include/linux/perf_event.h | |
| parent | perf: Use sample_flags for txn (diff) | |
| download | linux-dev-03b02db93be407103c385814033633364674a6f6.tar.xz linux-dev-03b02db93be407103c385814033633364674a6f6.zip | |
perf: Consolidate branch sample filter helpers
Besides the branch type filtering requests, 'event.attr.branch_sample_type'
also contains various flags indicating which additional information should
be captured, along with the base branch record. These flags help configure
the underlying hardware, and capture the branch records appropriately when
required e.g after PMU interrupt. But first, this moves an existing helper
perf_sample_save_hw_index() into the header before adding some more helpers
for other branch sample filter flags.
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20220906084414.396220-1-anshuman.khandual@arm.com
Diffstat (limited to 'include/linux/perf_event.h')
| -rw-r--r-- | include/linux/perf_event.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index 581880ddb9ef..a627528e5f3a 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1685,4 +1685,30 @@ static inline void perf_lopwr_cb(bool mode) } #endif +#ifdef CONFIG_PERF_EVENTS +static inline bool branch_sample_no_flags(const struct perf_event *event) +{ + return event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_NO_FLAGS; +} + +static inline bool branch_sample_no_cycles(const struct perf_event *event) +{ + return event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_NO_CYCLES; +} + +static inline bool branch_sample_type(const struct perf_event *event) +{ + return event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_TYPE_SAVE; +} + +static inline bool branch_sample_hw_index(const struct perf_event *event) +{ + return event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_HW_INDEX; +} + +static inline bool branch_sample_priv(const struct perf_event *event) +{ + return event->attr.branch_sample_type & PERF_SAMPLE_BRANCH_PRIV_SAVE; +} +#endif /* CONFIG_PERF_EVENTS */ #endif /* _LINUX_PERF_EVENT_H */ |