diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2018-07-10 09:57:59 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-07-10 18:19:02 +0100 |
| commit | 3a95200d3f89afd8b67f39d88d36cc7ec96ce385 (patch) | |
| tree | ceb9428b912eedf3731f71b7a2d7014f57473e4f /include/linux/perf/arm_pmu.h | |
| parent | 8d3e994241e6bcc7ead2b918c4f15b7683afa90a (diff) | |
arm_pmu: Change API to support 64bit counter values
Convert the {read/write}_counter APIs to handle 64bit values
to enable supporting chained event counters. The backends still
use 32bit values and we pass them 32bit values only. So in effect
there are no functional changes.
Cc: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Julien Thierry <julien.thierry@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'include/linux/perf/arm_pmu.h')
| -rw-r--r-- | include/linux/perf/arm_pmu.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/include/linux/perf/arm_pmu.h b/include/linux/perf/arm_pmu.h index 12c30a22fc8d..f7126a21df30 100644 --- a/include/linux/perf/arm_pmu.h +++ b/include/linux/perf/arm_pmu.h @@ -87,8 +87,8 @@ struct arm_pmu { struct perf_event *event); int (*set_event_filter)(struct hw_perf_event *evt, struct perf_event_attr *attr); - u32 (*read_counter)(struct perf_event *event); - void (*write_counter)(struct perf_event *event, u32 val); + u64 (*read_counter)(struct perf_event *event); + void (*write_counter)(struct perf_event *event, u64 val); void (*start)(struct arm_pmu *); void (*stop)(struct arm_pmu *); void (*reset)(void *); |