perfcounters: add PERF_COUNT_BUS_CYCLES

Generalize "bus cycles" hw events - and map them to CPU_CLK_Unhalted.Ref
on x86. (which is a good enough approximation)

Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 2 deletions

diff --git a/include/linux/perf_counter.h b/include/linux/perf_counter.h
index 1ea08e9f31ce..ec77d1643d37 100644
--- a/include/linux/perf_counter.h
+++ b/include/linux/perf_counter.h
@@ -36,14 +36,15 @@ enum hw_event_types {
         /*
          * Common hardware events, generalized by the kernel:
          */
-        PERF_COUNT_CYCLES               =  0,
+        PERF_COUNT_CPU_CYCLES           =  0,
         PERF_COUNT_INSTRUCTIONS         =  1,
         PERF_COUNT_CACHE_REFERENCES     =  2,
         PERF_COUNT_CACHE_MISSES         =  3,
         PERF_COUNT_BRANCH_INSTRUCTIONS  =  4,
         PERF_COUNT_BRANCH_MISSES        =  5,
+        PERF_COUNT_BUS_CYCLES           =  6,
 
-        PERF_HW_EVENTS_MAX              =  6,
+        PERF_HW_EVENTS_MAX              =  7,
 
         /*
          * Special "software" counters provided by the kernel, even if