diff options
| author | Mark Rutland <mark.rutland@arm.com> | 2011-04-28 15:47:10 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2011-08-31 10:50:09 +0100 |
| commit | e1f431b57ef9e4a68281540933fa74865cbb7a74 (patch) | |
| tree | 895e018faee0a504c82c02b69a8784433c3a057e /arch/arm/kernel/perf_event_v6.c | |
| parent | 7ae18a5717cbbf1879bdd5b66d7009a9958e5aef (diff) | |
ARM: perf: refactor event mapping
Currently mapping an event type to a hardware configuration value
depends on the data being pointed to from struct arm_pmu. These fields
(cache_map, event_map, raw_event_mask) are currently specific to CPU
PMUs, and do not serve the general case well.
This patch replaces the event map pointers on struct arm_pmu with a new
'map_event' function pointer. Small shim functions are used to reuse
the existing common code.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Reviewed-by: Jamie Iles <jamie@jamieiles.com>
Reviewed-by: Ashwin Chaugule <ashwinc@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm/kernel/perf_event_v6.c')
| -rw-r--r-- | arch/arm/kernel/perf_event_v6.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/arch/arm/kernel/perf_event_v6.c b/arch/arm/kernel/perf_event_v6.c index 68cf70425f2..a4c5aa9baa4 100644 --- a/arch/arm/kernel/perf_event_v6.c +++ b/arch/arm/kernel/perf_event_v6.c @@ -657,6 +657,12 @@ armv6mpcore_pmu_disable_event(struct hw_perf_event *hwc, raw_spin_unlock_irqrestore(&events->pmu_lock, flags); } +static int armv6_map_event(struct perf_event *event) +{ + return map_cpu_event(event, &armv6_perf_map, + &armv6_perf_cache_map, 0xFF); +} + static struct arm_pmu armv6pmu = { .id = ARM_PERF_PMU_ID_V6, .name = "v6", @@ -668,9 +674,7 @@ static struct arm_pmu armv6pmu = { .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, + .map_event = armv6_map_event, .num_events = 3, .max_period = (1LLU << 32) - 1, }; @@ -687,6 +691,13 @@ static struct arm_pmu *__init armv6pmu_init(void) * disable the interrupt reporting and update the event. When unthrottling we * reset the period and enable the interrupt reporting. */ + +static int armv6mpcore_map_event(struct perf_event *event) +{ + return map_cpu_event(event, &armv6mpcore_perf_map, + &armv6mpcore_perf_cache_map, 0xFF); +} + static struct arm_pmu armv6mpcore_pmu = { .id = ARM_PERF_PMU_ID_V6MP, .name = "v6mpcore", @@ -698,9 +709,7 @@ static struct arm_pmu armv6mpcore_pmu = { .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, + .map_event = armv6mpcore_map_event, .num_events = 3, .max_period = (1LLU << 32) - 1, }; |