From: Oliver Upton <oliver.upton@linux.dev>
To: kvmarm@lists.linux.dev
Cc: Marc Zyngier <maz@kernel.org>, Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Mingwei Zhang <mizhang@google.com>,
Colton Lewis <coltonlewis@google.com>,
Raghavendra Rao Ananta <rananta@google.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org,
Oliver Upton <oliver.upton@linux.dev>
Subject: [RFC PATCH 16/18] drivers/perf: apple_m1: Map a few more PMUv3 events
Date: Tue, 17 Dec 2024 13:23:17 -0800 [thread overview]
Message-ID: <20241217212317.3709478-1-oliver.upton@linux.dev> (raw)
In-Reply-To: <20241217212048.3709204-1-oliver.upton@linux.dev>
Map some more PMUv3 events onto hardware so 'perf stat' in a KVM VM can
show some useful information (e.g. IPC, branch prediction rate).
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
drivers/perf/apple_m1_cpu_pmu.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c
index b4fe247543a6..0e54d3f900a7 100644
--- a/drivers/perf/apple_m1_cpu_pmu.c
+++ b/drivers/perf/apple_m1_cpu_pmu.c
@@ -180,7 +180,10 @@ static const unsigned m1_pmu_perf_map[PERF_COUNT_HW_MAX] = {
static const unsigned int m1_pmu_pmceid_map[ARMV8_PMUV3_MAX_COMMON_EVENTS] = {
[0 ... ARMV8_PMUV3_MAX_COMMON_EVENTS - 1] = HW_OP_UNSUPPORTED,
+ M1_PMUV3_EVENT_MAP(INST_RETIRED, INST_ALL),
M1_PMUV3_EVENT_MAP(CPU_CYCLES, CORE_ACTIVE_CYCLE),
+ M1_PMUV3_EVENT_MAP(BR_RETIRED, INST_BRANCH),
+ M1_PMUV3_EVENT_MAP(BR_MIS_PRED_RETIRED, BRANCH_MISPRED_NONSPEC),
};
/* sysfs definitions */
--
2.39.5
next prev parent reply other threads:[~2024-12-17 21:41 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-17 21:20 [PATCH 00/18] KVM: arm64: Support FEAT_PMUv3 on Apple hardware Oliver Upton
2024-12-17 21:20 ` [PATCH 01/18] drivers/perf: apple_m1: Refactor event select/filter configuration Oliver Upton
2024-12-17 21:20 ` [PATCH 02/18] drivers/perf: apple_m1: Support host/guest event filtering Oliver Upton
2024-12-17 21:20 ` [PATCH 03/18] drivers/perf: apple_m1: Map generic branch events Oliver Upton
2024-12-17 21:20 ` [PATCH 04/18] drivers/perf: apple_m1: Provide helper for mapping PMUv3 events Oliver Upton
2024-12-17 21:20 ` [PATCH 05/18] KVM: arm64: Compute PMCEID from arm_pmu's event bitmaps Oliver Upton
2024-12-17 21:20 ` [PATCH 06/18] KVM: arm64: Always support SW_INCR PMU event Oliver Upton
2024-12-17 21:20 ` [PATCH 07/18] KVM: arm64: Remap PMUv3 events onto hardware Oliver Upton
2024-12-17 21:20 ` [PATCH 08/18] KVM: arm64: Use a cpucap to determine if system supports FEAT_PMUv3 Oliver Upton
2024-12-17 21:20 ` [PATCH 09/18] KVM: arm64: Drop kvm_arm_pmu_available static key Oliver Upton
2024-12-18 23:23 ` kernel test robot
2024-12-17 21:20 ` [PATCH 10/18] KVM: arm64: Use guard() to cleanup usage of arm_pmus_lock Oliver Upton
2024-12-17 21:20 ` [PATCH 11/18] KVM: arm64: Move PMUVer filtering into KVM code Oliver Upton
2024-12-17 21:20 ` [PATCH 12/18] KVM: arm64: Compute synthetic sysreg ESR for Apple PMUv3 traps Oliver Upton
2024-12-17 21:20 ` [PATCH 13/18] KVM: arm64: Advertise PMUv3 if IMPDEF traps are present Oliver Upton
2024-12-17 21:22 ` [PATCH 14/18] KVM: arm64: Advertise 0 event counters for IMPDEF PMU Oliver Upton
2024-12-17 21:22 ` [PATCH 15/18] arm64: Enable IMP DEF PMUv3 traps on Apple M2 Oliver Upton
2024-12-17 21:23 ` Oliver Upton [this message]
2024-12-17 21:23 ` [RFC PATCH 17/18] KVM: arm64: Provide 1 event counter on IMPDEF hardware Oliver Upton
2024-12-17 21:23 ` [HACK PATCH 18/18] KVM: arm64: selftests: Add test for probing PMUv3 sysregs Oliver Upton
2024-12-21 13:45 ` [PATCH 00/18] KVM: arm64: Support FEAT_PMUv3 on Apple hardware Janne Grunau
2024-12-21 22:00 ` Oliver Upton
2025-01-08 12:38 ` Will Deacon
2025-01-08 20:14 ` Oliver Upton
2025-01-08 21:26 ` Marc Zyngier
2025-01-08 23:06 ` [PATCH 00/18] KVM: arm64: Support FEAT_PMUv3 on Apple hardware\ Oliver Upton
2025-01-10 16:22 ` [PATCH 00/18] KVM: arm64: Support FEAT_PMUv3 on Apple hardware Will Deacon
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