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authorAnshuman Khandual <anshuman.khandual@arm.com>2022-09-07 14:49:23 +0530
committerPeter Zijlstra <peterz@infradead.org>2022-09-07 21:54:01 +0200
commit91207f62616f9f51b52436364e6d064f002e9112 (patch)
treee0645862b754f38f1fd61b84d8b9b446c56f5a9a /include/linux/perf
parentperf/core: Assert PERF_EVENT_FLAG_ARCH does not overlap with generic flags (diff)
downloadlinux-dev-91207f62616f9f51b52436364e6d064f002e9112.tar.xz
linux-dev-91207f62616f9f51b52436364e6d064f002e9112.zip
arm64/perf: Assert all platform event flags are within PERF_EVENT_FLAG_ARCH
Ensure all platform specific event flags are within PERF_EVENT_FLAG_ARCH. Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: James Clark <james.clark@arm.com> Link: https://lkml.kernel.org/r/20220907091924.439193-4-anshuman.khandual@arm.com
Diffstat (limited to 'include/linux/perf')
-rw-r--r--include/linux/perf/arm_pmu.h9
1 files changed, 5 insertions, 4 deletions
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h
index 0407a38b470a..0356cb6a215d 100644
--- a/include/linux/perf/arm_pmu.h
+++ b/include/linux/perf/arm_pmu.h
@@ -24,10 +24,11 @@
/*
* ARM PMU hw_event flags
*/
-/* Event uses a 64bit counter */
-#define ARMPMU_EVT_64BIT 1
-/* Event uses a 47bit counter */
-#define ARMPMU_EVT_47BIT 2
+#define ARMPMU_EVT_64BIT 0x00001 /* Event uses a 64bit counter */
+#define ARMPMU_EVT_47BIT 0x00002 /* Event uses a 47bit counter */
+
+static_assert((PERF_EVENT_FLAG_ARCH & ARMPMU_EVT_64BIT) == ARMPMU_EVT_64BIT);
+static_assert((PERF_EVENT_FLAG_ARCH & ARMPMU_EVT_47BIT) == ARMPMU_EVT_47BIT);
#define HW_OP_UNSUPPORTED 0xFFFF
#define C(_x) PERF_COUNT_HW_CACHE_##_x