Add to the capabilities the ITRACE property so that ITRACE START events are generated when the PMU is switched on by the core.
Signed-off-by: Mathieu Poirier mathieu.poirier@linaro.org --- drivers/hwtracing/coresight/coresight-etm-perf.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/hwtracing/coresight/coresight-etm-perf.c b/drivers/hwtracing/coresight/coresight-etm-perf.c index 4d5a2b9f9d6a..25ae56e924bb 100644 --- a/drivers/hwtracing/coresight/coresight-etm-perf.c +++ b/drivers/hwtracing/coresight/coresight-etm-perf.c @@ -566,7 +566,8 @@ static int __init etm_perf_init(void) { int ret;
- etm_pmu.capabilities = PERF_PMU_CAP_EXCLUSIVE; + etm_pmu.capabilities = (PERF_PMU_CAP_EXCLUSIVE | + PERF_PMU_CAP_ITRACE);
etm_pmu.attr_groups = etm_pmu_attr_groups; etm_pmu.task_ctx_nr = perf_sw_context;