From: Mathieu Poirier <mathieu.poirier@linaro.org>
Date: Thu, 25 Apr 2019 19:52:51 +0000 (-0600)
Subject: coresight: pmu: Adding ITRACE property to cs_etm PMU
X-Git-Tag: for-linus-20190516~74^2~86
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=6fcdba33ab0d43e5fcb557897c1c81541927f615;p=linux-2.6-block.git

coresight: pmu: Adding ITRACE property to cs_etm PMU

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>
---

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;