Patch add "mem_access" event to sysfs. This as-is not a raw event supported by Power8 pmu. Instead, it is formed based on raw event encoding specificed in Power8-pmu.c.
Primary PMU event used here is PM_MRK_INST_CMPL. This event tracks only the completed marked instructions. Random sampling mode (MMCRA[SM]) with Random Load/Store Facility Sampling (RLS) is enabled to mark type of instructions. With Random sampling in RLS mode with PM_MRK_INST_CMPL event on Power8, the LDST field in SIER identifies the memory hierarchy level (eg: L1, L2 etc), from which a data-cache miss for a marked instruction are satisfied. Reviewed-by: Sukadev Bhattiprolu <suka...@linux.vnet.ibm.com> Signed-off-by: Madhavan Srinivasan <ma...@linux.vnet.ibm.com> --- arch/powerpc/perf/power8-events-list.h | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/powerpc/perf/power8-events-list.h b/arch/powerpc/perf/power8-events-list.h index 1368547..fdb8ce2 100644 --- a/arch/powerpc/perf/power8-events-list.h +++ b/arch/powerpc/perf/power8-events-list.h @@ -18,3 +18,4 @@ EVENT(PM_CMPLU_STALL, 0x4000a) EVENT(PM_INST_CMPL, 0x00002) EVENT(PM_BRU_FIN, 0x10068) EVENT(PM_BR_MPRED_CMPL, 0x400f6) +EVENT(mem_access, 0x100010401e0) -- 1.9.1 _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
