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| author | Huacai Chen <chenhuacai@loongson.cn> | 2023-06-15 14:35:52 +0800 |
|---|---|---|
| committer | Huacai Chen <chenhuacai@loongson.cn> | 2023-06-15 14:35:52 +0800 |
| commit | 962369120d750cbc9c4dc492f32b4304669ff6aa (patch) | |
| tree | c8527c0d161f8a9cdb7f3a72080d6870d0301ed1 | |
| parent | 346dc929623cef70ff7832a4fa0ffd1b696e312a (diff) | |
| download | linux-962369120d750cbc9c4dc492f32b4304669ff6aa.tar.gz | |
LoongArch: Fix perf event id calculation
LoongArch PMCFG has 10bit event id rather than 8 bit, so fix it.
Cc: stable@vger.kernel.org
Signed-off-by: Jun Yi <yijun@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
| -rw-r--r-- | arch/loongarch/kernel/perf_event.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/loongarch/kernel/perf_event.c b/arch/loongarch/kernel/perf_event.c index ff28f99b47d7eb..0491bf453cd496 100644 --- a/arch/loongarch/kernel/perf_event.c +++ b/arch/loongarch/kernel/perf_event.c @@ -271,7 +271,7 @@ static void loongarch_pmu_enable_event(struct hw_perf_event *evt, int idx) WARN_ON(idx < 0 || idx >= loongarch_pmu.num_counters); /* Make sure interrupt enabled. */ - cpuc->saved_ctrl[idx] = M_PERFCTL_EVENT(evt->event_base & 0xff) | + cpuc->saved_ctrl[idx] = M_PERFCTL_EVENT(evt->event_base) | (evt->config_base & M_PERFCTL_CONFIG_MASK) | CSR_PERFCTRL_IE; cpu = (event->cpu >= 0) ? event->cpu : smp_processor_id(); @@ -594,7 +594,7 @@ static struct pmu pmu = { static unsigned int loongarch_pmu_perf_event_encode(const struct loongarch_perf_event *pev) { - return (pev->event_id & 0xff); + return M_PERFCTL_EVENT(pev->event_id); } static const struct loongarch_perf_event *loongarch_pmu_map_general_event(int idx) @@ -849,7 +849,7 @@ static void resume_local_counters(void) static const struct loongarch_perf_event *loongarch_pmu_map_raw_event(u64 config) { - raw_event.event_id = config & 0xff; + raw_event.event_id = M_PERFCTL_EVENT(config); return &raw_event; } |