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author | Mark Rutland <mark.rutland@arm.com> | 2011-04-28 14:47:10 (GMT) |
---|---|---|
committer | Will Deacon <will.deacon@arm.com> | 2011-08-31 09:50:09 (GMT) |
commit | e1f431b57ef9e4a68281540933fa74865cbb7a74 (patch) | |
tree | 895e018faee0a504c82c02b69a8784433c3a057e /arch/arm/kernel/perf_event_v7.c | |
parent | 7ae18a5717cbbf1879bdd5b66d7009a9958e5aef (diff) | |
download | linux-e1f431b57ef9e4a68281540933fa74865cbb7a74.tar.xz |
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_v7.c')
-rw-r--r-- | arch/arm/kernel/perf_event_v7.c | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/arch/arm/kernel/perf_event_v7.c b/arch/arm/kernel/perf_event_v7.c index 68ac522..be7b58a 100644 --- a/arch/arm/kernel/perf_event_v7.c +++ b/arch/arm/kernel/perf_event_v7.c @@ -1140,6 +1140,30 @@ static void armv7pmu_reset(void *info) armv7_pmnc_write(ARMV7_PMNC_P | ARMV7_PMNC_C); } +static int armv7_a8_map_event(struct perf_event *event) +{ + return map_cpu_event(event, &armv7_a8_perf_map, + &armv7_a8_perf_cache_map, 0xFF); +} + +static int armv7_a9_map_event(struct perf_event *event) +{ + return map_cpu_event(event, &armv7_a9_perf_map, + &armv7_a9_perf_cache_map, 0xFF); +} + +static int armv7_a5_map_event(struct perf_event *event) +{ + return map_cpu_event(event, &armv7_a5_perf_map, + &armv7_a5_perf_cache_map, 0xFF); +} + +static int armv7_a15_map_event(struct perf_event *event) +{ + return map_cpu_event(event, &armv7_a15_perf_map, + &armv7_a15_perf_cache_map, 0xFF); +} + static struct arm_pmu armv7pmu = { .handle_irq = armv7pmu_handle_irq, .enable = armv7pmu_enable_event, @@ -1150,7 +1174,6 @@ static struct arm_pmu armv7pmu = { .start = armv7pmu_start, .stop = armv7pmu_stop, .reset = armv7pmu_reset, - .raw_event_mask = 0xFF, .max_period = (1LLU << 32) - 1, }; @@ -1169,8 +1192,7 @@ static struct arm_pmu *__init armv7_a8_pmu_init(void) { armv7pmu.id = ARM_PERF_PMU_ID_CA8; armv7pmu.name = "ARMv7 Cortex-A8"; - armv7pmu.cache_map = &armv7_a8_perf_cache_map; - armv7pmu.event_map = &armv7_a8_perf_map; + armv7pmu.map_event = armv7_a8_map_event; armv7pmu.num_events = armv7_read_num_pmnc_events(); return &armv7pmu; } @@ -1179,8 +1201,7 @@ static struct arm_pmu *__init armv7_a9_pmu_init(void) { armv7pmu.id = ARM_PERF_PMU_ID_CA9; armv7pmu.name = "ARMv7 Cortex-A9"; - armv7pmu.cache_map = &armv7_a9_perf_cache_map; - armv7pmu.event_map = &armv7_a9_perf_map; + armv7pmu.map_event = armv7_a9_map_event; armv7pmu.num_events = armv7_read_num_pmnc_events(); return &armv7pmu; } @@ -1189,8 +1210,7 @@ static struct arm_pmu *__init armv7_a5_pmu_init(void) { armv7pmu.id = ARM_PERF_PMU_ID_CA5; armv7pmu.name = "ARMv7 Cortex-A5"; - armv7pmu.cache_map = &armv7_a5_perf_cache_map; - armv7pmu.event_map = &armv7_a5_perf_map; + armv7pmu.map_event = armv7_a5_map_event; armv7pmu.num_events = armv7_read_num_pmnc_events(); return &armv7pmu; } @@ -1199,8 +1219,7 @@ static struct arm_pmu *__init armv7_a15_pmu_init(void) { armv7pmu.id = ARM_PERF_PMU_ID_CA15; armv7pmu.name = "ARMv7 Cortex-A15"; - armv7pmu.cache_map = &armv7_a15_perf_cache_map; - armv7pmu.event_map = &armv7_a15_perf_map; + armv7pmu.map_event = armv7_a15_map_event; armv7pmu.num_events = armv7_read_num_pmnc_events(); armv7pmu.set_event_filter = armv7pmu_set_event_filter; return &armv7pmu; |