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authorMike Leach <mike.leach@linaro.org>2017-08-02 19:22:01 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-08-28 17:05:48 +0300
commitb97971bee55dc45420e0fe352d0b4df6e74716d4 (patch)
treef6456a80d31402dafbee7905d17758f7304d805b /tools
parent89f00a1ae596876412c9b74e1c96453e9702a0cc (diff)
downloadlinux-b97971bee55dc45420e0fe352d0b4df6e74716d4.tar.xz
coresight: pmu: Adds return stack option to perf coresight pmu
Return stack is a programmable option on some ETM and PTM hardware. Adds the option flags to enable this from the perf event command line. Signed-off-by: Mike Leach <mike.leach@linaro.org> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/include/linux/coresight-pmu.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/tools/include/linux/coresight-pmu.h b/tools/include/linux/coresight-pmu.h
index 7d410260661b..45852c2cd096 100644
--- a/tools/include/linux/coresight-pmu.h
+++ b/tools/include/linux/coresight-pmu.h
@@ -24,6 +24,7 @@
/* ETMv3.5/PTM's ETMCR config bit */
#define ETM_OPT_CYCACC 12
#define ETM_OPT_TS 28
+#define ETM_OPT_RETSTK 29
static inline int coresight_get_trace_id(int cpu)
{