diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/perf_event.h | 4 | ||||
| -rw-r--r-- | arch/arm/kernel/perf_event.c | 4 |
2 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm/include/asm/perf_event.h b/arch/arm/include/asm/perf_event.h index 99cfe36..7523340 100644 --- a/arch/arm/include/asm/perf_event.h +++ b/arch/arm/include/asm/perf_event.h @@ -12,10 +12,6 @@ #ifndef __ARM_PERF_EVENT_H__ #define __ARM_PERF_EVENT_H__ -/* ARM performance counters start from 1 (in the cp15 accesses) so use the - * same indexes here for consistency. */ -#define PERF_EVENT_INDEX_OFFSET 1 - /* ARM perf PMU IDs for use by internal perf clients. */ enum arm_perf_pmu_ids { ARM_PERF_PMU_ID_XSCALE1 = 0, diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index b2abfa1..8a89d3b 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -539,6 +539,10 @@ static int armpmu_event_init(struct perf_event *event) int err = 0; atomic_t *active_events = &armpmu->active_events; + /* does not support taken branch sampling */ + if (has_branch_stack(event)) + return -EOPNOTSUPP; + if (armpmu->map_event(event) == -ENOENT) return -ENOENT; |