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Sat, 10 May 2025 08:11:58 -0700 (PDT) Received: from [127.0.1.1] ([59.188.211.160]) by smtp.googlemail.com with ESMTPSA id 41be03b00d2f7-b2350ddca3asm2990493a12.58.2025.05.10.08.11.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 10 May 2025 08:11:58 -0700 (PDT) From: Nick Chan Date: Sat, 10 May 2025 23:10:50 +0800 Subject: [PATCH v7 09/21] drivers/perf: apple_m1: Add Apple A8/A8X support Precedence: bulk X-Mailing-List: linux-perf-users@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20250510-apple-cpmu-v7-9-bd505cb6c520@gmail.com> References: <20250510-apple-cpmu-v7-0-bd505cb6c520@gmail.com> In-Reply-To: <20250510-apple-cpmu-v7-0-bd505cb6c520@gmail.com> To: Will Deacon , Mark Rutland , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Catalin Marinas , Sven Peter , Janne Grunau , Alyssa Rosenzweig , Neal Gompa Cc: Marc Zyngier , linux-arm-kernel@lists.infradead.org, linux-perf-users@vger.kernel.org, devicetree@vger.kernel.org, asahi@lists.linux.dev, linux-kernel@vger.kernel.org, Nick Chan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; 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a=openpgp; fpr=4B5278785C97ACF79C3C688301CA08B7A6C50824 Add support for the CPU PMU found on the Apple A8, A8X SoCs. Signed-off-by: Nick Chan --- drivers/perf/apple_m1_cpu_pmu.c | 124 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 124 insertions(+) diff --git a/drivers/perf/apple_m1_cpu_pmu.c b/drivers/perf/apple_m1_cpu_pmu.c index ac9beafff3d691b226c261f222c2dfb057959a56..e56f7fa9829da9e9444c6834b03e4a79dbc02c22 100644 --- a/drivers/perf/apple_m1_cpu_pmu.c +++ b/drivers/perf/apple_m1_cpu_pmu.c @@ -28,6 +28,7 @@ #define ANY_BUT_0_1 GENMASK(9, 2) #define ONLY_2_TO_7 GENMASK(7, 2) #define ONLY_2_4_6 (BIT(2) | BIT(4) | BIT(6)) +#define ONLY_3_5_7 (BIT(3) | BIT(5) | BIT(7)) #define ONLY_5_6_7 (BIT(5) | BIT(6) | BIT(7)) /* @@ -183,6 +184,111 @@ static const u16 a7_pmu_event_affinity[A7_PMU_PERFCTR_LAST + 1] = { [A7_PMU_PERFCTR_UNKNOWN_fd] = ONLY_2_4_6, }; +enum a8_pmu_events { + A8_PMU_PERFCTR_UNKNOWN_1 = 0x1, + A8_PMU_PERFCTR_CORE_ACTIVE_CYCLE = 0x2, + A8_PMU_PERFCTR_L2_TLB_MISS_INSTRUCTION = 0xa, + A8_PMU_PERFCTR_L2_TLB_MISS_DATA = 0xb, + A8_PMU_PERFCTR_BIU_UPSTREAM_CYCLE = 0x13, + A8_PMU_PERFCTR_BIU_DOWNSTREAM_CYCLE = 0x14, + A8_PMU_PERFCTR_L2C_AGENT_LD = 0x1a, + A8_PMU_PERFCTR_L2C_AGENT_LD_MISS = 0x1b, + A8_PMU_PERFCTR_L2C_AGENT_ST = 0x1c, + A8_PMU_PERFCTR_L2C_AGENT_ST_MISS = 0x1d, + A8_PMU_PERFCTR_SCHEDULE_UOP = 0x52, + A8_PMU_PERFCTR_MAP_REWIND = 0x75, + A8_PMU_PERFCTR_MAP_STALL = 0x76, + A8_PMU_PERFCTR_MAP_INT_UOP = 0x7b, + A8_PMU_PERFCTR_MAP_LDST_UOP = 0x7c, + A8_PMU_PERFCTR_MAP_SIMD_UOP = 0x7d, + A8_PMU_PERFCTR_FLUSH_RESTART_OTHER_NONSPEC = 0x84, + A8_PMU_PERFCTR_INST_A32 = 0x8a, + A8_PMU_PERFCTR_INST_T32 = 0x8b, + A8_PMU_PERFCTR_INST_ALL = 0x8c, + A8_PMU_PERFCTR_INST_BRANCH = 0x8d, + A8_PMU_PERFCTR_INST_BRANCH_CALL = 0x8e, + A8_PMU_PERFCTR_INST_BRANCH_RET = 0x8f, + A8_PMU_PERFCTR_INST_BRANCH_TAKEN = 0x90, + A8_PMU_PERFCTR_INST_BRANCH_INDIR = 0x93, + A8_PMU_PERFCTR_INST_BRANCH_COND = 0x94, + A8_PMU_PERFCTR_INST_INT_LD = 0x95, + A8_PMU_PERFCTR_INST_INT_ST = 0x96, + A8_PMU_PERFCTR_INST_INT_ALU = 0x97, + A8_PMU_PERFCTR_INST_SIMD_LD = 0x98, + A8_PMU_PERFCTR_INST_SIMD_ST = 0x99, + A8_PMU_PERFCTR_INST_SIMD_ALU = 0x9a, + A8_PMU_PERFCTR_INST_LDST = 0x9b, + A8_PMU_PERFCTR_UNKNOWN_9c = 0x9c, + A8_PMU_PERFCTR_UNKNOWN_9f = 0x9f, + A8_PMU_PERFCTR_L1D_TLB_ACCESS = 0xa0, + A8_PMU_PERFCTR_L1D_TLB_MISS = 0xa1, + A8_PMU_PERFCTR_L1D_CACHE_MISS_ST = 0xa2, + A8_PMU_PERFCTR_L1D_CACHE_MISS_LD = 0xa3, + A8_PMU_PERFCTR_LD_UNIT_UOP = 0xa6, + A8_PMU_PERFCTR_ST_UNIT_UOP = 0xa7, + A8_PMU_PERFCTR_L1D_CACHE_WRITEBACK = 0xa8, + A8_PMU_PERFCTR_LDST_X64_UOP = 0xb1, + A8_PMU_PERFCTR_L1D_CACHE_MISS_LD_NONSPEC = 0xbf, + A8_PMU_PERFCTR_L1D_CACHE_MISS_ST_NONSPEC = 0xc0, + A8_PMU_PERFCTR_L1D_TLB_MISS_NONSPEC = 0xc1, + A8_PMU_PERFCTR_ST_MEMORY_ORDER_VIOLATION_NONSPEC = 0xc4, + A8_PMU_PERFCTR_BRANCH_COND_MISPRED_NONSPEC = 0xc5, + A8_PMU_PERFCTR_BRANCH_INDIR_MISPRED_NONSPEC = 0xc6, + A8_PMU_PERFCTR_BRANCH_RET_INDIR_MISPRED_NONSPEC = 0xc8, + A8_PMU_PERFCTR_BRANCH_CALL_INDIR_MISPRED_NONSPEC = 0xca, + A8_PMU_PERFCTR_BRANCH_MISPRED_NONSPEC = 0xcb, + A8_PMU_PERFCTR_FED_IC_MISS_DEMAND = 0xd3, + A8_PMU_PERFCTR_L1I_TLB_MISS_DEMAND = 0xd4, + A8_PMU_PERFCTR_FETCH_RESTART = 0xde, + A8_PMU_PERFCTR_UNKNOWN_f5 = 0xf5, + A8_PMU_PERFCTR_UNKNOWN_f6 = 0xf6, + A8_PMU_PERFCTR_UNKNOWN_f7 = 0xf7, + A8_PMU_PERFCTR_LAST = M1_PMU_CFG_EVENT, + + /* + * From this point onwards, these are not actual HW events, + * but attributes that get stored in hw->config_base. + */ + A8_PMU_CFG_COUNT_USER = BIT(8), + A8_PMU_CFG_COUNT_KERNEL = BIT(9), +}; + +static const u16 a8_pmu_event_affinity[A8_PMU_PERFCTR_LAST + 1] = { + [0 ... A8_PMU_PERFCTR_LAST] = ANY_BUT_0_1, + [A8_PMU_PERFCTR_UNKNOWN_1] = ONLY_5_6_7, + [A8_PMU_PERFCTR_CORE_ACTIVE_CYCLE] = ANY_BUT_0_1 | BIT(0), + [A8_PMU_PERFCTR_INST_A32] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_T32] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_ALL] = BIT(7) | BIT(1), + [A8_PMU_PERFCTR_INST_BRANCH] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_BRANCH_CALL] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_BRANCH_RET] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_BRANCH_TAKEN] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_BRANCH_INDIR] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_BRANCH_COND] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_INT_LD] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_INT_ST] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_INT_ALU] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_SIMD_LD] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_SIMD_ST] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_SIMD_ALU] = ONLY_5_6_7, + [A8_PMU_PERFCTR_INST_LDST] = ONLY_5_6_7, + [A8_PMU_PERFCTR_UNKNOWN_9c] = ONLY_5_6_7, + [A8_PMU_PERFCTR_UNKNOWN_9f] = ONLY_5_6_7, + [A8_PMU_PERFCTR_L1D_CACHE_MISS_LD_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_L1D_CACHE_MISS_ST_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_L1D_TLB_MISS_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_ST_MEMORY_ORDER_VIOLATION_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_BRANCH_COND_MISPRED_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_BRANCH_INDIR_MISPRED_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_BRANCH_RET_INDIR_MISPRED_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_BRANCH_CALL_INDIR_MISPRED_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_BRANCH_MISPRED_NONSPEC] = ONLY_5_6_7, + [A8_PMU_PERFCTR_UNKNOWN_f5] = ANY_BUT_0_1, + [A8_PMU_PERFCTR_UNKNOWN_f6] = ONLY_3_5_7, + [A8_PMU_PERFCTR_UNKNOWN_f7] = ONLY_3_5_7, +}; + enum m1_pmu_events { M1_PMU_PERFCTR_RETIRE_UOP = 0x1, M1_PMU_PERFCTR_CORE_ACTIVE_CYCLE = 0x2, @@ -685,6 +791,12 @@ static int a7_pmu_get_event_idx(struct pmu_hw_events *cpuc, return apple_pmu_get_event_idx(cpuc, event, a7_pmu_event_affinity); } +static int a8_pmu_get_event_idx(struct pmu_hw_events *cpuc, + struct perf_event *event) +{ + return apple_pmu_get_event_idx(cpuc, event, a8_pmu_event_affinity); +} + static int m1_pmu_get_event_idx(struct pmu_hw_events *cpuc, struct perf_event *event) { @@ -863,6 +975,17 @@ static int a7_pmu_cyclone_init(struct arm_pmu *cpu_pmu) return apple_pmu_init(cpu_pmu, A7_PMU_NR_COUNTERS); } +static int a8_pmu_typhoon_init(struct arm_pmu *cpu_pmu) +{ + cpu_pmu->name = "apple_typhoon_pmu"; + cpu_pmu->get_event_idx = a8_pmu_get_event_idx; + cpu_pmu->map_event = m1_pmu_map_event; + cpu_pmu->reset = a7_pmu_reset; + cpu_pmu->start = a7_pmu_start; + cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = &m1_pmu_events_attr_group; + return apple_pmu_init(cpu_pmu, A7_PMU_NR_COUNTERS); +} + static int m1_pmu_ice_init(struct arm_pmu *cpu_pmu) { cpu_pmu->name = "apple_icestorm_pmu"; @@ -912,6 +1035,7 @@ static const struct of_device_id m1_pmu_of_device_ids[] = { { .compatible = "apple,blizzard-pmu", .data = m2_pmu_blizzard_init, }, { .compatible = "apple,icestorm-pmu", .data = m1_pmu_ice_init, }, { .compatible = "apple,firestorm-pmu", .data = m1_pmu_fire_init, }, + { .compatible = "apple,typhoon-pmu", .data = a8_pmu_typhoon_init, }, { .compatible = "apple,cyclone-pmu", .data = a7_pmu_cyclone_init, }, { }, }; -- 2.49.0