[PATCH 2/3] powerpc/perf: Add blacklisted events for power9 dd2.1
From: Madhavan Srinivasan <hidden>
Date: 2018-03-04 11:56:48
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
Signed-off-by: Madhavan Srinivasan <redacted> --- arch/powerpc/perf/power9-events-list.h | 13 +++++++++++++ arch/powerpc/perf/power9-pmu.c | 26 ++++++++++++++++++++++++++ 2 files changed, 39 insertions(+)
diff --git a/arch/powerpc/perf/power9-events-list.h b/arch/powerpc/perf/power9-events-list.h
index e99c6bf4d391..9d7a16a943a8 100644
--- a/arch/powerpc/perf/power9-events-list.h
+++ b/arch/powerpc/perf/power9-events-list.h@@ -69,3 +69,16 @@ EVENT(PM_BR_CMPL_ALT, 0x10012) EVENT(PM_BR_2PATH, 0x20036) /* ALternate branch event that are not strongly biased */ EVENT(PM_BR_2PATH_ALT, 0x40036) + +/* Blacklisted events */ +EVENT(PM_MRK_ST_DONE_L2, 0x10134) +EVENT(PM_RADIX_PWC_L1_HIT, 0x1f056) +EVENT(PM_FLOP_CMPL, 0x100f4) +EVENT(PM_MRK_NTF_FIN, 0x20112) +EVENT(PM_RADIX_PWC_L2_HIT, 0x2d024) +EVENT(PM_IFETCH_THROTTLE, 0x3405e) +EVENT(PM_MRK_L2_TM_ST_ABORT_SISTER, 0x3e15c) +EVENT(PM_RADIX_PWC_L3_HIT, 0x3f056) +EVENT(PM_RUN_CYC_SMT2_MODE, 0x3006c) +EVENT(PM_TM_TX_PASS_RUN_INST, 0x4e014) +EVENT(PM_DISP_HELD_SYNC_HOLD, 0x4003c)
diff --git a/arch/powerpc/perf/power9-pmu.c b/arch/powerpc/perf/power9-pmu.c
index 24b5b5b7a206..3847607c16f0 100644
--- a/arch/powerpc/perf/power9-pmu.c
+++ b/arch/powerpc/perf/power9-pmu.c@@ -101,9 +101,26 @@ enum { #define POWER9_MMCRA_IFM2 0x0000000080000000UL #define POWER9_MMCRA_IFM3 0x00000000C0000000UL +/* Nasty Power9 specific hack */ +#define PVR_POWER9_CUMULUS 0x00002000 + /* PowerISA v2.07 format attribute structure*/ extern struct attribute_group isa207_pmu_format_group; +int p9_dd21_bl_ev[] = { + PM_MRK_ST_DONE_L2, + PM_RADIX_PWC_L1_HIT, + PM_FLOP_CMPL, + PM_MRK_NTF_FIN, + PM_RADIX_PWC_L2_HIT, + PM_IFETCH_THROTTLE, + PM_MRK_L2_TM_ST_ABORT_SISTER, + PM_RADIX_PWC_L3_HIT, + PM_RUN_CYC_SMT2_MODE, + PM_TM_TX_PASS_RUN_INST, + PM_DISP_HELD_SYNC_HOLD, +}; + /* Table of alternatives, sorted by column 0 */ static const unsigned int power9_event_alternatives[][MAX_ALT] = { { PM_INST_DISP, PM_INST_DISP_ALT },
@@ -446,12 +463,21 @@ static struct power_pmu power9_pmu = { static int __init init_power9_pmu(void) { int rc = 0; + unsigned int pvr = mfspr(SPRN_PVR); /* Comes from cpu_specs[] */ if (!cur_cpu_spec->oprofile_cpu_type || strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc64/power9")) return -ENODEV; + /* Blacklist events */ + if (!(pvr & PVR_POWER9_CUMULUS)) { + if ((PVR_CFG(pvr) == 2) && (PVR_MIN(pvr) == 1)) { + power9_pmu.blacklist_ev = p9_dd21_bl_ev; + power9_pmu.n_blacklist_ev = ARRAY_SIZE(p9_dd21_bl_ev); + } + } + if (cpu_has_feature(CPU_FTR_POWER9_DD1)) { /* * Since PM_INST_CMPL may not provide right counts in all
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2.7.4