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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-08 16:58:08 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-08 16:58:08 +0000 |
| commit | 1121cef62750fbc3ec1b87f4fcf2cef0f05f23a9 (patch) | |
| tree | ba8548f2df113c7da8a46563947536f455f9a1c0 /arch/arm64/kernel/perf_event.c | |
| parent | Adding debian version 6.1.76-1. (diff) | |
| download | linux-1121cef62750fbc3ec1b87f4fcf2cef0f05f23a9.tar.xz linux-1121cef62750fbc3ec1b87f4fcf2cef0f05f23a9.zip | |
Merging upstream version 6.1.82.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm64/kernel/perf_event.c')
| -rw-r--r-- | arch/arm64/kernel/perf_event.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index 7b0643fe2..214b1805e 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -168,7 +168,11 @@ armv8pmu_events_sysfs_show(struct device *dev, PMU_EVENT_ATTR_ID(name, armv8pmu_events_sysfs_show, config) static struct attribute *armv8_pmuv3_event_attrs[] = { - ARMV8_EVENT_ATTR(sw_incr, ARMV8_PMUV3_PERFCTR_SW_INCR), + /* + * Don't expose the sw_incr event in /sys. It's not usable as writes to + * PMSWINC_EL0 will trap as PMUSERENR.{SW,EN}=={0,0} and event rotation + * means we don't have a fixed event<->counter relationship regardless. + */ ARMV8_EVENT_ATTR(l1i_cache_refill, ARMV8_PMUV3_PERFCTR_L1I_CACHE_REFILL), ARMV8_EVENT_ATTR(l1i_tlb_refill, ARMV8_PMUV3_PERFCTR_L1I_TLB_REFILL), ARMV8_EVENT_ATTR(l1d_cache_refill, ARMV8_PMUV3_PERFCTR_L1D_CACHE_REFILL), |