diff options
| author | Vinayak Kale <vkale@apm.com> | 2013-10-18 12:59:06 (GMT) |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2013-10-25 15:23:52 (GMT) |
| commit | c019de3de61387d224ba4738e3d196aa24c88844 (patch) | |
| tree | a689e027f22cbae45101c15a69622fa431fe2313 /arch | |
| parent | a872013d6d03ab63736a01dcd9747580be3a6b70 (diff) | |
| download | linux-c019de3de61387d224ba4738e3d196aa24c88844.tar.xz | |
arm64: perf: fix event number mask
This patch fixes ARMV8_EVTYPE_* macros since evtCount (event number)
field width is 10bits in event selection register.
Signed-off-by: Vinayak Kale <vkale@apm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm64/kernel/perf_event.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index cea1594..5d14470 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -784,8 +784,8 @@ static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] /* * PMXEVTYPER: Event selection reg */ -#define ARMV8_EVTYPE_MASK 0xc80000ff /* Mask for writable bits */ -#define ARMV8_EVTYPE_EVENT 0xff /* Mask for EVENT bits */ +#define ARMV8_EVTYPE_MASK 0xc80003ff /* Mask for writable bits */ +#define ARMV8_EVTYPE_EVENT 0x3ff /* Mask for EVENT bits */ /* * Event filters for PMUv3 @@ -1175,7 +1175,8 @@ static void armv8pmu_reset(void *info) static int armv8_pmuv3_map_event(struct perf_event *event) { return map_cpu_event(event, &armv8_pmuv3_perf_map, - &armv8_pmuv3_perf_cache_map, 0xFF); + &armv8_pmuv3_perf_cache_map, + ARMV8_EVTYPE_EVENT); } static struct arm_pmu armv8pmu = { |