From 83f83cc0c1379413fb1199a78f91ab441a7e76fd Mon Sep 17 00:00:00 2001 From: Shaokun Zhang Date: Thu, 3 Mar 2022 16:54:19 +0800 Subject: arm64: perf: Expose some Armv9 common events under sysfs Armv9[1] has introduced some common architectural events (0x400C-0x400F) and common microarchitectural events (0x4010-0x401B), which can be detected by PMCEID0_EL0 from bit44 to bit59, so expose these common events under sysfs. [1] https://developer.arm.com/documentation/ddi0608/ba Cc: Mark Rutland Cc: Will Deacon Signed-off-by: Shaokun Zhang Link: https://lore.kernel.org/r/20220303085419.64085-1-zhangshaokun@hisilicon.com Signed-off-by: Will Deacon --- arch/arm64/include/asm/perf_event.h | 14 ++++++++++++++ arch/arm64/kernel/perf_event.c | 10 ++++++++++ 2 files changed, 24 insertions(+) diff --git a/arch/arm64/include/asm/perf_event.h b/arch/arm64/include/asm/perf_event.h index 4ef6f19331f9..b93cafd8313a 100644 --- a/arch/arm64/include/asm/perf_event.h +++ b/arch/arm64/include/asm/perf_event.h @@ -96,6 +96,20 @@ #define ARMV8_PMUV3_PERFCTR_L2I_CACHE_LMISS 0x400A #define ARMV8_PMUV3_PERFCTR_L3D_CACHE_LMISS_RD 0x400B +/* Trace buffer events */ +#define ARMV8_PMUV3_PERFCTR_TRB_WRAP 0x400C +#define ARMV8_PMUV3_PERFCTR_TRB_TRIG 0x400E + +/* Trace unit events */ +#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT0 0x4010 +#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT1 0x4011 +#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT2 0x4012 +#define ARMV8_PMUV3_PERFCTR_TRCEXTOUT3 0x4013 +#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT4 0x4018 +#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT5 0x4019 +#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT6 0x401A +#define ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT7 0x401B + /* additional latency from alignment events */ #define ARMV8_PMUV3_PERFCTR_LDST_ALIGN_LAT 0x4020 #define ARMV8_PMUV3_PERFCTR_LD_ALIGN_LAT 0x4021 diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index cab678ed6618..cb69ff1e6138 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -242,6 +242,16 @@ static struct attribute *armv8_pmuv3_event_attrs[] = { ARMV8_EVENT_ATTR(l2d_cache_lmiss_rd, ARMV8_PMUV3_PERFCTR_L2D_CACHE_LMISS_RD), ARMV8_EVENT_ATTR(l2i_cache_lmiss, ARMV8_PMUV3_PERFCTR_L2I_CACHE_LMISS), ARMV8_EVENT_ATTR(l3d_cache_lmiss_rd, ARMV8_PMUV3_PERFCTR_L3D_CACHE_LMISS_RD), + ARMV8_EVENT_ATTR(trb_wrap, ARMV8_PMUV3_PERFCTR_TRB_WRAP), + ARMV8_EVENT_ATTR(trb_trig, ARMV8_PMUV3_PERFCTR_TRB_TRIG), + ARMV8_EVENT_ATTR(trcextout0, ARMV8_PMUV3_PERFCTR_TRCEXTOUT0), + ARMV8_EVENT_ATTR(trcextout1, ARMV8_PMUV3_PERFCTR_TRCEXTOUT1), + ARMV8_EVENT_ATTR(trcextout2, ARMV8_PMUV3_PERFCTR_TRCEXTOUT2), + ARMV8_EVENT_ATTR(trcextout3, ARMV8_PMUV3_PERFCTR_TRCEXTOUT3), + ARMV8_EVENT_ATTR(cti_trigout4, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT4), + ARMV8_EVENT_ATTR(cti_trigout5, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT5), + ARMV8_EVENT_ATTR(cti_trigout6, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT6), + ARMV8_EVENT_ATTR(cti_trigout7, ARMV8_PMUV3_PERFCTR_CTI_TRIGOUT7), ARMV8_EVENT_ATTR(ldst_align_lat, ARMV8_PMUV3_PERFCTR_LDST_ALIGN_LAT), ARMV8_EVENT_ATTR(ld_align_lat, ARMV8_PMUV3_PERFCTR_LD_ALIGN_LAT), ARMV8_EVENT_ATTR(st_align_lat, ARMV8_PMUV3_PERFCTR_ST_ALIGN_LAT), -- cgit