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_xscale.c | |
| parent | ARM: perf: add type field to struct arm_pmu (diff) | |
| download | linux-dev-e1f431b57ef9e4a68281540933fa74865cbb7a74.tar.xz linux-dev-e1f431b57ef9e4a68281540933fa74865cbb7a74.zip | |
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_xscale.c')
| -rw-r--r-- | arch/arm/kernel/perf_event_xscale.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/arch/arm/kernel/perf_event_xscale.c b/arch/arm/kernel/perf_event_xscale.c index 18e4823a0a62..d4c7610d25b9 100644 --- a/arch/arm/kernel/perf_event_xscale.c +++ b/arch/arm/kernel/perf_event_xscale.c @@ -425,6 +425,12 @@ xscale1pmu_write_counter(int counter, u32 val) } } +static int xscale_map_event(struct perf_event *event) +{ + return map_cpu_event(event, &xscale_perf_map, + &xscale_perf_cache_map, 0xFF); +} + static struct arm_pmu xscale1pmu = { .id = ARM_PERF_PMU_ID_XSCALE1, .name = "xscale1", @@ -436,9 +442,7 @@ static struct arm_pmu xscale1pmu = { .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, + .map_event = xscale_map_event, .num_events = 3, .max_period = (1LLU << 32) - 1, }; @@ -799,9 +803,7 @@ static struct arm_pmu xscale2pmu = { .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, + .map_event = xscale_map_event, .num_events = 5, .max_period = (1LLU << 32) - 1, }; |