Commit ac82d127 authored by Mark Rutland's avatar Mark Rutland Committed by Catalin Marinas

arm64: perf: add Cortex-A53 support

The Cortex-A53 PMU supports a few events outside of the required PMUv3
set that are rather useful.

This patch adds the event map data for said events.
Signed-off-by: default avatarMark Rutland <mark.rutland@arm.com>
Acked-by: default avatarWill Deacon <will.deacon@arm.com>
Signed-off-by: default avatarCatalin Marinas <catalin.marinas@arm.com>
parent 6475b2d8
...@@ -8,6 +8,7 @@ Required properties: ...@@ -8,6 +8,7 @@ Required properties:
- compatible : should be one of - compatible : should be one of
"arm,armv8-pmuv3" "arm,armv8-pmuv3"
"arm.cortex-a53-pmu"
"arm,cortex-a17-pmu" "arm,cortex-a17-pmu"
"arm,cortex-a15-pmu" "arm,cortex-a15-pmu"
"arm,cortex-a12-pmu" "arm,cortex-a12-pmu"
......
...@@ -69,6 +69,11 @@ enum armv8_pmuv3_perf_types { ...@@ -69,6 +69,11 @@ enum armv8_pmuv3_perf_types {
ARMV8_PMUV3_PERFCTR_BUS_CYCLES = 0x1D, ARMV8_PMUV3_PERFCTR_BUS_CYCLES = 0x1D,
}; };
/* ARMv8 Cortex-A53 specific event types. */
enum armv8_a53_pmu_perf_types {
ARMV8_A53_PERFCTR_PREFETCH_LINEFILL = 0xC2,
};
/* PMUv3 HW events mapping. */ /* PMUv3 HW events mapping. */
static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = { static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = {
PERF_MAP_ALL_UNSUPPORTED, PERF_MAP_ALL_UNSUPPORTED,
...@@ -79,6 +84,18 @@ static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = { ...@@ -79,6 +84,18 @@ static const unsigned armv8_pmuv3_perf_map[PERF_COUNT_HW_MAX] = {
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_MIS_PRED, [PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_MIS_PRED,
}; };
/* ARM Cortex-A53 HW events mapping. */
static const unsigned armv8_a53_perf_map[PERF_COUNT_HW_MAX] = {
PERF_MAP_ALL_UNSUPPORTED,
[PERF_COUNT_HW_CPU_CYCLES] = ARMV8_PMUV3_PERFCTR_CLOCK_CYCLES,
[PERF_COUNT_HW_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_INSTR_EXECUTED,
[PERF_COUNT_HW_CACHE_REFERENCES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_ACCESS,
[PERF_COUNT_HW_CACHE_MISSES] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL,
[PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = ARMV8_PMUV3_PERFCTR_PC_WRITE,
[PERF_COUNT_HW_BRANCH_MISSES] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_MIS_PRED,
[PERF_COUNT_HW_BUS_CYCLES] = ARMV8_PMUV3_PERFCTR_BUS_CYCLES,
};
static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_OP_MAX]
[PERF_COUNT_HW_CACHE_RESULT_MAX] = { [PERF_COUNT_HW_CACHE_RESULT_MAX] = {
...@@ -95,6 +112,28 @@ static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] ...@@ -95,6 +112,28 @@ static const unsigned armv8_pmuv3_perf_cache_map[PERF_COUNT_HW_CACHE_MAX]
[C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_MIS_PRED, [C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_MIS_PRED,
}; };
static const unsigned armv8_a53_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_PMUV3_PERFCTR_L1_DCACHE_ACCESS,
[C(L1D)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL,
[C(L1D)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_ACCESS,
[C(L1D)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1_DCACHE_REFILL,
[C(L1D)][C(OP_PREFETCH)][C(RESULT_MISS)] = ARMV8_A53_PERFCTR_PREFETCH_LINEFILL,
[C(L1I)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_L1_ICACHE_ACCESS,
[C(L1I)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_L1_ICACHE_REFILL,
[C(ITLB)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_ITLB_REFILL,
[C(BPU)][C(OP_READ)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_PRED,
[C(BPU)][C(OP_READ)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_MIS_PRED,
[C(BPU)][C(OP_WRITE)][C(RESULT_ACCESS)] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_PRED,
[C(BPU)][C(OP_WRITE)][C(RESULT_MISS)] = ARMV8_PMUV3_PERFCTR_PC_BRANCH_MIS_PRED,
};
/* /*
* Perf Events' indices * Perf Events' indices
*/ */
...@@ -502,6 +541,13 @@ static int armv8_pmuv3_map_event(struct perf_event *event) ...@@ -502,6 +541,13 @@ static int armv8_pmuv3_map_event(struct perf_event *event)
ARMV8_EVTYPE_EVENT); ARMV8_EVTYPE_EVENT);
} }
static int armv8_a53_map_event(struct perf_event *event)
{
return armpmu_map_event(event, &armv8_a53_perf_map,
&armv8_a53_perf_cache_map,
ARMV8_EVTYPE_EVENT);
}
static void armv8pmu_read_num_pmnc_events(void *info) static void armv8pmu_read_num_pmnc_events(void *info)
{ {
int *nb_cnt = info; int *nb_cnt = info;
...@@ -520,7 +566,7 @@ static int armv8pmu_probe_num_events(struct arm_pmu *arm_pmu) ...@@ -520,7 +566,7 @@ static int armv8pmu_probe_num_events(struct arm_pmu *arm_pmu)
&arm_pmu->num_events, 1); &arm_pmu->num_events, 1);
} }
static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu) static void armv8_pmu_init(struct arm_pmu *cpu_pmu)
{ {
cpu_pmu->handle_irq = armv8pmu_handle_irq, cpu_pmu->handle_irq = armv8pmu_handle_irq,
cpu_pmu->enable = armv8pmu_enable_event, cpu_pmu->enable = armv8pmu_enable_event,
...@@ -532,14 +578,28 @@ static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu) ...@@ -532,14 +578,28 @@ static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu)
cpu_pmu->stop = armv8pmu_stop, cpu_pmu->stop = armv8pmu_stop,
cpu_pmu->reset = armv8pmu_reset, cpu_pmu->reset = armv8pmu_reset,
cpu_pmu->max_period = (1LLU << 32) - 1, cpu_pmu->max_period = (1LLU << 32) - 1,
cpu_pmu->set_event_filter = armv8pmu_set_event_filter;
}
static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu)
{
armv8_pmu_init(cpu_pmu);
cpu_pmu->name = "armv8_pmuv3"; cpu_pmu->name = "armv8_pmuv3";
cpu_pmu->map_event = armv8_pmuv3_map_event; cpu_pmu->map_event = armv8_pmuv3_map_event;
cpu_pmu->set_event_filter = armv8pmu_set_event_filter; return armv8pmu_probe_num_events(cpu_pmu);
}
static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu)
{
armv8_pmu_init(cpu_pmu);
cpu_pmu->name = "armv8_cortex_a53";
cpu_pmu->map_event = armv8_a53_map_event;
return armv8pmu_probe_num_events(cpu_pmu); return armv8pmu_probe_num_events(cpu_pmu);
} }
static const struct of_device_id armv8_pmu_of_device_ids[] = { static const struct of_device_id armv8_pmu_of_device_ids[] = {
{.compatible = "arm,armv8-pmuv3", .data = armv8_pmuv3_init}, {.compatible = "arm,armv8-pmuv3", .data = armv8_pmuv3_init},
{.compatible = "arm,cortex-a53-pmu", .data = armv8_a53_pmu_init},
{}, {},
}; };
......
Markdown is supported
0%
or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment