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perf: Add EVENT_ATTR_ID to simplify event attributes

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Similar EVENT_ATTR macros are defined in many PMU drivers,
like Arm PMU driver, Arm SMMU PMU driver. So add a generic
macro to simplify code.

Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Link: https://lore.kernel.org/r/1623220863-58233-2-git-send-email-liuqi115@huawei.com
Signed-off-by: Will Deacon <will@kernel.org>
This commit is contained in:
Qi Liu
2021-06-09 14:40:57 +08:00
committed by Will Deacon
parent 4c1daba15c
commit f8e6d24144
1 changed files with 6 additions and 0 deletions
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6
include/linux/perf_event.h
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@ -1576,6 +1576,12 @@ static struct perf_pmu_events_attr _var = { \
.event_str = _str, \
};
#define PMU_EVENT_ATTR_ID(_name, _show, _id) \
(&((struct perf_pmu_events_attr[]) { \
{ .attr = __ATTR(_name, 0444, _show, NULL), \
.id = _id, } \
})[0].attr.attr)
#define PMU_FORMAT_ATTR(_name, _format) \
static ssize_t \
_name##_show(struct device *dev, \