diff options
| -rw-r--r-- | arch/arm/kernel/perf_event.c | 131 |
1 files changed, 38 insertions, 93 deletions
diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 07a50357492a..c49e1701a2f6 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -84,14 +84,17 @@ struct arm_pmu { irqreturn_t (*handle_irq)(int irq_num, void *dev); void (*enable)(struct hw_perf_event *evt, int idx); void (*disable)(struct hw_perf_event *evt, int idx); - int (*event_map)(int evt); - u64 (*raw_event)(u64); int (*get_event_idx)(struct cpu_hw_events *cpuc, struct hw_perf_event *hwc); u32 (*read_counter)(int idx); void (*write_counter)(int idx, u32 val); void (*start)(void); void (*stop)(void); + const unsigned (*cache_map)[PERF_COUNT_HW_CACHE_MAX] + [PERF_COUNT_HW_CACHE_OP_MAX] + [PERF_COUNT_HW_CACHE_RESULT_MAX]; + const unsigned (*event_map)[PERF_COUNT_HW_MAX]; + u32 raw_event_mask; int num_events; u64 max_period; }; @@ -136,10 +139,6 @@ EXPORT_SYMBOL_GPL(perf_num_counters); #define CACHE_OP_UNSUPPORTED 0xFFFF -static unsigned armpmu_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] - [PERF_COUNT_HW_CACHE_OP_MAX] - [PERF_COUNT_HW_CACHE_RESULT_MAX]; - static int armpmu_map_cache_event(u64 config) { @@ -157,7 +156,7 @@ armpmu_map_cache_event(u64 config) if (cache_result >= PERF_COUNT_HW_CACHE_RESULT_MAX) return -EINVAL; - ret = (int)armpmu_perf_cache_map[cache_type][cache_op][cache_result]; + ret = (int)(*armpmu->cache_map)[cache_type][cache_op][cache_result]; if (ret == CACHE_OP_UNSUPPORTED) return -ENOENT; @@ -166,6 +165,19 @@ armpmu_map_cache_event(u64 config) } static int +armpmu_map_event(u64 config) +{ + int mapping = (*armpmu->event_map)[config]; + return mapping == HW_OP_UNSUPPORTED ? -EOPNOTSUPP : mapping; +} + +static int +armpmu_map_raw_event(u64 config) +{ + return (int)(config & armpmu->raw_event_mask); +} + +static int armpmu_event_set_period(struct perf_event *event, struct hw_perf_event *hwc, int idx) @@ -458,11 +470,11 @@ __hw_perf_event_init(struct perf_event *event) /* Decode the generic type into an ARM event identifier. */ if (PERF_TYPE_HARDWARE == event->attr.type) { - mapping = armpmu->event_map(event->attr.config); + mapping = armpmu_map_event(event->attr.config); } else if (PERF_TYPE_HW_CACHE == event->attr.type) { mapping = armpmu_map_cache_event(event->attr.config); } else if (PERF_TYPE_RAW == event->attr.type) { - mapping = armpmu->raw_event(event->attr.config); + mapping = armpmu_map_raw_event(event->attr.config); } else { pr_debug("event type %x not supported\n", event->attr.type); return -EOPNOTSUPP; @@ -1121,30 +1133,6 @@ armv6pmu_stop(void) spin_unlock_irqrestore(&pmu_lock, flags); } -static inline int -armv6pmu_event_map(int config) -{ - int mapping = armv6_perf_map[config]; - if (HW_OP_UNSUPPORTED == mapping) - mapping = -EOPNOTSUPP; - return mapping; -} - -static inline int -armv6mpcore_pmu_event_map(int config) -{ - int mapping = armv6mpcore_perf_map[config]; - if (HW_OP_UNSUPPORTED == mapping) - mapping = -EOPNOTSUPP; - return mapping; -} - -static u64 -armv6pmu_raw_event(u64 config) -{ - return config & 0xff; -} - static int armv6pmu_get_event_idx(struct cpu_hw_events *cpuc, struct hw_perf_event *event) @@ -1240,13 +1228,14 @@ static const struct arm_pmu armv6pmu = { .handle_irq = armv6pmu_handle_irq, .enable = armv6pmu_enable_event, .disable = armv6pmu_disable_event, - .event_map = armv6pmu_event_map, - .raw_event = armv6pmu_raw_event, .read_counter = armv6pmu_read_counter, .write_counter = armv6pmu_write_counter, .get_event_idx = armv6pmu_get_event_idx, .start = armv6pmu_start, .stop = armv6pmu_stop, + .cache_map = &armv6_perf_cache_map, + .event_map = &armv6_perf_map, + .raw_event_mask = 0xFF, .num_events = 3, .max_period = (1LLU << 32) - 1, }; @@ -1263,13 +1252,14 @@ static const struct arm_pmu armv6mpcore_pmu = { .handle_irq = armv6pmu_handle_irq, .enable = armv6pmu_enable_event, .disable = armv6mpcore_pmu_disable_event, - .event_map = armv6mpcore_pmu_event_map, - .raw_event = armv6pmu_raw_event, .read_counter = armv6pmu_read_counter, .write_counter = armv6pmu_write_counter, .get_event_idx = armv6pmu_get_event_idx, .start = armv6pmu_start, .stop = armv6pmu_stop, + .cache_map = &armv6mpcore_perf_cache_map, + .event_map = &armv6mpcore_perf_map, + .raw_event_mask = 0xFF, .num_events = 3, .max_period = (1LLU << 32) - 1, }; @@ -2093,27 +2083,6 @@ static void armv7pmu_stop(void) spin_unlock_irqrestore(&pmu_lock, flags); } -static inline int armv7_a8_pmu_event_map(int config) -{ - int mapping = armv7_a8_perf_map[config]; - if (HW_OP_UNSUPPORTED == mapping) - mapping = -EOPNOTSUPP; - return mapping; -} - -static inline int armv7_a9_pmu_event_map(int config) -{ - int mapping = armv7_a9_perf_map[config]; - if (HW_OP_UNSUPPORTED == mapping) - mapping = -EOPNOTSUPP; - return mapping; -} - -static u64 armv7pmu_raw_event(u64 config) -{ - return config & 0xff; -} - static int armv7pmu_get_event_idx(struct cpu_hw_events *cpuc, struct hw_perf_event *event) { @@ -2144,12 +2113,12 @@ static struct arm_pmu armv7pmu = { .handle_irq = armv7pmu_handle_irq, .enable = armv7pmu_enable_event, .disable = armv7pmu_disable_event, - .raw_event = armv7pmu_raw_event, .read_counter = armv7pmu_read_counter, .write_counter = armv7pmu_write_counter, .get_event_idx = armv7pmu_get_event_idx, .start = armv7pmu_start, .stop = armv7pmu_stop, + .raw_event_mask = 0xFF, .max_period = (1LLU << 32) - 1, }; @@ -2318,21 +2287,6 @@ static const unsigned xscale_perf_cache_map[PERF_COUNT_HW_CACHE_MAX] #define XSCALE_PMU_RESET (CCNT_RESET | PMN_RESET) #define XSCALE_PMU_CNT64 0x008 -static inline int -xscalepmu_event_map(int config) -{ - int mapping = xscale_perf_map[config]; - if (HW_OP_UNSUPPORTED == mapping) - mapping = -EOPNOTSUPP; - return mapping; -} - -static u64 -xscalepmu_raw_event(u64 config) -{ - return config & 0xff; -} - #define XSCALE1_OVERFLOWED_MASK 0x700 #define XSCALE1_CCOUNT_OVERFLOW 0x400 #define XSCALE1_COUNT0_OVERFLOW 0x100 @@ -2598,13 +2552,14 @@ static const struct arm_pmu xscale1pmu = { .handle_irq = xscale1pmu_handle_irq, .enable = xscale1pmu_enable_event, .disable = xscale1pmu_disable_event, - .event_map = xscalepmu_event_map, - .raw_event = xscalepmu_raw_event, .read_counter = xscale1pmu_read_counter, .write_counter = xscale1pmu_write_counter, .get_event_idx = xscale1pmu_get_event_idx, .start = xscale1pmu_start, .stop = xscale1pmu_stop, + .cache_map = &xscale_perf_cache_map, + .event_map = &xscale_perf_map, + .raw_event_mask = 0xFF, .num_events = 3, .max_period = (1LLU << 32) - 1, }; @@ -2953,13 +2908,14 @@ static const struct arm_pmu xscale2pmu = { .handle_irq = xscale2pmu_handle_irq, .enable = xscale2pmu_enable_event, .disable = xscale2pmu_disable_event, - .event_map = xscalepmu_event_map, - .raw_event = xscalepmu_raw_event, .read_counter = xscale2pmu_read_counter, .write_counter = xscale2pmu_write_counter, .get_event_idx = xscale2pmu_get_event_idx, .start = xscale2pmu_start, .stop = xscale2pmu_stop, + .cache_map = &xscale_perf_cache_map, + .event_map = &xscale_perf_map, + .raw_event_mask = 0xFF, .num_events = 5, .max_period = (1LLU << 32) - 1, }; @@ -2978,20 +2934,14 @@ init_hw_perf_events(void) case 0xB560: /* ARM1156 */ case 0xB760: /* ARM1176 */ armpmu = &armv6pmu; - memcpy(armpmu_perf_cache_map, armv6_perf_cache_map, - sizeof(armv6_perf_cache_map)); break; case 0xB020: /* ARM11mpcore */ armpmu = &armv6mpcore_pmu; - memcpy(armpmu_perf_cache_map, - armv6mpcore_perf_cache_map, - sizeof(armv6mpcore_perf_cache_map)); break; case 0xC080: /* Cortex-A8 */ armv7pmu.id = ARM_PERF_PMU_ID_CA8; - memcpy(armpmu_perf_cache_map, armv7_a8_perf_cache_map, - sizeof(armv7_a8_perf_cache_map)); - armv7pmu.event_map = armv7_a8_pmu_event_map; + armv7pmu.cache_map = &armv7_a8_perf_cache_map; + armv7pmu.event_map = &armv7_a8_perf_map; armpmu = &armv7pmu; /* Reset PMNC and read the nb of CNTx counters @@ -3000,9 +2950,8 @@ init_hw_perf_events(void) break; case 0xC090: /* Cortex-A9 */ armv7pmu.id = ARM_PERF_PMU_ID_CA9; - memcpy(armpmu_perf_cache_map, armv7_a9_perf_cache_map, - sizeof(armv7_a9_perf_cache_map)); - armv7pmu.event_map = armv7_a9_pmu_event_map; + armv7pmu.cache_map = &armv7_a9_perf_cache_map; + armv7pmu.event_map = &armv7_a9_perf_map; armpmu = &armv7pmu; /* Reset PMNC and read the nb of CNTx counters @@ -3016,13 +2965,9 @@ init_hw_perf_events(void) switch (part_number) { case 1: armpmu = &xscale1pmu; - memcpy(armpmu_perf_cache_map, xscale_perf_cache_map, - sizeof(xscale_perf_cache_map)); break; case 2: armpmu = &xscale2pmu; - memcpy(armpmu_perf_cache_map, xscale_perf_cache_map, - sizeof(xscale_perf_cache_map)); break; } } |