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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.

Mike Leach committed 9 years ago

Commit b97971b1 parent 89f00a13 files · +4 −0Browse files

Showing the changes to tools/include/linux (1 of 3 files). Show all

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tools/include/linux/coresight-pmu.h+1−0
@@ -24,6 +24,7 @@ · 23 unmodified lines
2424 /* ETMv3.5/PTM's ETMCR config bit */
2525 #define ETM_OPT_CYCACC 12
2626 #define ETM_OPT_TS 28
27+#define ETM_OPT_RETSTK 29
2728
2829 static inline int coresight_get_trace_id(int cpu)
2930 {

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