diff options
Diffstat (limited to 'arch')
-rw-r--r-- | arch/arm64/kernel/perf_event.c | 10 |
1 files changed, 2 insertions, 8 deletions
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index ecbf2d81ec5c..c76c7241125b 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c | |||
@@ -613,17 +613,11 @@ enum armv8_pmuv3_perf_types { | |||
613 | ARMV8_PMUV3_PERFCTR_BUS_ACCESS = 0x19, | 613 | ARMV8_PMUV3_PERFCTR_BUS_ACCESS = 0x19, |
614 | ARMV8_PMUV3_PERFCTR_MEM_ERROR = 0x1A, | 614 | ARMV8_PMUV3_PERFCTR_MEM_ERROR = 0x1A, |
615 | ARMV8_PMUV3_PERFCTR_BUS_CYCLES = 0x1D, | 615 | ARMV8_PMUV3_PERFCTR_BUS_CYCLES = 0x1D, |
616 | |||
617 | /* | ||
618 | * This isn't an architected event. | ||
619 | * We detect this event number and use the cycle counter instead. | ||
620 | */ | ||
621 | ARMV8_PMUV3_PERFCTR_CPU_CYCLES = 0xFF, | ||
622 | }; | 616 | }; |
623 | 617 | ||
624 | /* PMUv3 HW events mapping. */ | 618 | /* PMUv3 HW events mapping. */ |
625 | static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = { | 619 | static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = { |
626 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CPU_CYCLES, | 620 | [PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES, |
627 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INSTR_EXECUTED, | 621 | [PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INSTR_EXECUTED, |
628 | [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_ACCESS, | 622 | [PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_ACCESS, |
629 | [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL, | 623 | [PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL, |
@@ -1106,7 +1100,7 @@ static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc, | |||
1106 | unsigned long evtype = event->config_base & ARMV8_EVTYPE_EVENT; | 1100 | unsigned long evtype = event->config_base & ARMV8_EVTYPE_EVENT; |
1107 | 1101 | ||
1108 | /* Always place a cycle counter into the cycle counter. */ | 1102 | /* Always place a cycle counter into the cycle counter. */ |
1109 | if (evtype == ARMV8_PMUV3_PERFCTR_CPU_CYCLES) { | 1103 | if (evtype == ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES) { |
1110 | if (test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask)) | 1104 | if (test_and_set_bit(ARMV8_IDX_CYCLE_COUNTER, cpuc->used_mask)) |
1111 | return -EAGAIN; | 1105 | return -EAGAIN; |
1112 | 1106 | ||