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| author | Julien Thierry <julien.thierry@arm.com> | 2017-08-09 17:46:38 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2017-08-10 17:46:44 +0100 |
| commit | 5561b6c5e9813df16d7453f6ce1a0546221fca97 (patch) | |
| tree | 4a68228b72cdf10d923b71f57497eedb6484c342 /arch/arm64/kernel/perf_event.c | |
| parent | d0d09d4d99e08767050bc30f2b19d6146abe01e2 (diff) | |
| download | talos-obmc-linux-5561b6c5e9813df16d7453f6ce1a0546221fca97.tar.gz talos-obmc-linux-5561b6c5e9813df16d7453f6ce1a0546221fca97.zip | |
arm64: perf: add support for Cortex-A73
The Cortex-A73 uses some implementation defined perf events.
This patch sets up the necessary mapping for Cortex-A73.
Mappings are based on Cortex-A73 TRM r0p2, section 11.9 Events
(pages 11-457 to 11-460).
Signed-off-by: Julien Thierry <julien.thierry@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/kernel/perf_event.c')
| -rw-r--r-- | arch/arm64/kernel/perf_event.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index f7737f6dcc36..3fc00f61f729 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -255,6 +255,21 @@ static const unsigned armv8_a57_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR, }; +static const unsigned armv8_a73_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX] = { + PERF_CACHE_MAP_ALL_UNSUPPORTED, + + [C(L1D)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_RD, + [C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_L1D_CACHE_WR, + + [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD, + [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR, + + [C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_RD, + [C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_IMPDEF_PERFCTR_BUS_ACCESS_WR, +}; + static const unsigned armv8_thunder_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { @@ -868,6 +883,11 @@ static int armv8_a57_map_event(struct perf_event *event) return __armv8_pmuv3_map_event(event, NULL, &armv8_a57_perf_cache_map); } +static int armv8_a73_map_event(struct perf_event *event) +{ + return __armv8_pmuv3_map_event(event, NULL, &armv8_a73_perf_cache_map); +} + static int armv8_thunder_map_event(struct perf_event *event) { return __armv8_pmuv3_map_event(event, NULL, @@ -1018,6 +1038,22 @@ static int armv8_a72_pmu_init(struct arm_pmu *cpu_pmu) return 0; } +static int armv8_a73_pmu_init(struct arm_pmu *cpu_pmu) +{ + int ret = armv8_pmu_init(cpu_pmu); + if (ret) + return ret; + + cpu_pmu->name = "armv8_cortex_a73"; + cpu_pmu->map_event = armv8_a73_map_event; + cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = + &armv8_pmuv3_events_attr_group; + cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = + &armv8_pmuv3_format_attr_group; + + return 0; +} + static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu) { int ret = armv8_pmu_init(cpu_pmu); @@ -1055,6 +1091,7 @@ static const struct of_device_id armv8_pmu_of_device_ids[] = { {.compatible = "arm,cortex-a53-pmu", .data = armv8_a53_pmu_init}, {.compatible = "arm,cortex-a57-pmu", .data = armv8_a57_pmu_init}, {.compatible = "arm,cortex-a72-pmu", .data = armv8_a72_pmu_init}, + {.compatible = "arm,cortex-a73-pmu", .data = armv8_a73_pmu_init}, {.compatible = "cavium,thunder-pmu", .data = armv8_thunder_pmu_init}, {.compatible = "brcm,vulcan-pmu", .data = armv8_vulcan_pmu_init}, {}, |
