Commit 36e1605d authored Apr 25, 2019 by Mathieu Poirier Committed by Yabin Cui Nov 06, 2019

UPSTREAM: coresight: pmu: Adding ITRACE property to cs_etm PMU



(Upstream commit 6fcdba33ab0d43e5fcb557897c1c81541927f615).

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>
Acked-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Tested-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Robert Walker <robert.walker@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Bug: 140266694
Change-Id: I0531b3e2843eef4f5c594a65b699ec3988b2f4bc
Signed-off-by: Yabin Cui <yabinc@google.com>

parent cb8a9fac

drivers/hwtracing/coresight/coresight-etm-perf.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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;