From 98d0cb818ba4695b9a41ab83b7c00ec1cbdf1b35 Mon Sep 17 00:00:00 2001 From: Dhananjay Ugwekar Date: Fri, 15 Nov 2024 06:08:03 +0000 Subject: perf/x86/rapl: Modify the generic variable names to *_pkg* Prepare for the addition of RAPL core energy counter support. Replace the generic names with *_pkg*, to later on differentiate between the scopes of the two different PMUs and their variables. No functional change. Signed-off-by: Dhananjay Ugwekar Reviewed-by: Gautham R. Shenoy Reviewed-by: Zhang Rui Tested-by: Zhang Rui --- arch/x86/events/rapl.c | 120 ++++++++++++++++++++--------------------- 1 file changed, 60 insertions(+), 60 deletions(-) --- a/arch/x86/events/rapl.c +++ b/arch/x86/events/rapl.c @@ -70,18 +70,18 @@ MODULE_LICENSE("GPL"); /* * RAPL energy status counters */ -enum perf_rapl_events { +enum perf_rapl_pkg_events { PERF_RAPL_PP0 = 0, /* all cores */ PERF_RAPL_PKG, /* entire package */ PERF_RAPL_RAM, /* DRAM */ PERF_RAPL_PP1, /* gpu */ PERF_RAPL_PSYS, /* psys */ - PERF_RAPL_MAX, - NR_RAPL_DOMAINS = PERF_RAPL_MAX, + PERF_RAPL_PKG_EVENTS_MAX, + NR_RAPL_PKG_DOMAINS = PERF_RAPL_PKG_EVENTS_MAX, }; -static const char *const rapl_domain_names[NR_RAPL_DOMAINS] __initconst = { +static const char *const rapl_pkg_domain_names[NR_RAPL_PKG_DOMAINS] __initconst = { "pp0-core", "package", "dram", @@ -112,7 +112,7 @@ static struct perf_pmu_events_attr event * considered as either pkg-scope or die-scope, and we are considering * them as die-scope. */ -#define rapl_pmu_is_pkg_scope() \ +#define rapl_pkg_pmu_is_pkg_scope() \ (boot_cpu_data.x86_vendor == X86_VENDOR_AMD || \ boot_cpu_data.x86_vendor == X86_VENDOR_HYGON) @@ -139,16 +139,16 @@ enum rapl_unit_quirk { }; struct rapl_model { - struct perf_msr *rapl_msrs; - unsigned long events; + struct perf_msr *rapl_pkg_msrs; + unsigned long pkg_events; unsigned int msr_power_unit; enum rapl_unit_quirk unit_quirk; }; /* 1/2^hw_unit Joule */ -static int rapl_hw_unit[NR_RAPL_DOMAINS] __read_mostly; -static struct rapl_pmus *rapl_pmus; -static unsigned int rapl_cntr_mask; +static int rapl_pkg_hw_unit[NR_RAPL_PKG_DOMAINS] __read_mostly; +static struct rapl_pmus *rapl_pmus_pkg; +static unsigned int rapl_pkg_cntr_mask; static u64 rapl_timer_ms; static struct perf_msr *rapl_msrs; static struct rapl_model *rapl_model; @@ -163,8 +163,8 @@ static inline unsigned int get_rapl_pmu_ * (for non-existent mappings in topology map) to UINT_MAX, so * the error check in the caller is simplified. */ - return rapl_pmu_is_pkg_scope() ? topology_logical_package_id(cpu) : - topology_logical_die_id(cpu); + return rapl_pkg_pmu_is_pkg_scope() ? topology_logical_package_id(cpu) : + topology_logical_die_id(cpu); } static inline u64 rapl_read_counter(struct perf_event *event) @@ -176,7 +176,7 @@ static inline u64 rapl_read_counter(stru static inline u64 rapl_scale(u64 v, int cfg) { - if (cfg > NR_RAPL_DOMAINS) { + if (cfg > NR_RAPL_PKG_DOMAINS) { pr_warn("Invalid domain %d, failed to scale data\n", cfg); return v; } @@ -186,7 +186,7 @@ static inline u64 rapl_scale(u64 v, int * or use ldexp(count, -32). * Watts = Joules/Time delta */ - return v << (32 - rapl_hw_unit[cfg - 1]); + return v << (32 - rapl_pkg_hw_unit[cfg - 1]); } static u64 rapl_event_update(struct perf_event *event) @@ -347,7 +347,7 @@ static int rapl_pmu_event_init(struct pe unsigned int rapl_pmu_idx; /* only look at RAPL events */ - if (event->attr.type != rapl_pmus->pmu.type) + if (event->attr.type != rapl_pmus_pkg->pmu.type) return -ENOENT; /* check only supported bits are set */ @@ -357,14 +357,14 @@ static int rapl_pmu_event_init(struct pe if (event->cpu < 0) return -EINVAL; - if (!cfg || cfg >= NR_RAPL_DOMAINS + 1) + if (!cfg || cfg >= NR_RAPL_PKG_DOMAINS + 1) return -EINVAL; - cfg = array_index_nospec((long)cfg, NR_RAPL_DOMAINS + 1); + cfg = array_index_nospec((long)cfg, NR_RAPL_PKG_DOMAINS + 1); bit = cfg - 1; /* check event supported */ - if (!(rapl_cntr_mask & (1 << bit))) + if (!(rapl_pkg_cntr_mask & (1 << bit))) return -EINVAL; /* unsupported modes and filters */ @@ -372,11 +372,11 @@ static int rapl_pmu_event_init(struct pe return -EINVAL; rapl_pmu_idx = get_rapl_pmu_idx(event->cpu); - if (rapl_pmu_idx >= rapl_pmus->nr_rapl_pmu) + if (rapl_pmu_idx >= rapl_pmus_pkg->nr_rapl_pmu) return -EINVAL; /* must be done before validate_group */ - rapl_pmu = rapl_pmus->rapl_pmu[rapl_pmu_idx]; + rapl_pmu = rapl_pmus_pkg->rapl_pmu[rapl_pmu_idx]; if (!rapl_pmu) return -EINVAL; @@ -530,11 +530,11 @@ static struct perf_msr intel_rapl_spr_ms }; /* - * Force to PERF_RAPL_MAX size due to: - * - perf_msr_probe(PERF_RAPL_MAX) + * Force to PERF_RAPL_PKG_EVENTS_MAX size due to: + * - perf_msr_probe(PERF_RAPL_PKG_EVENTS_MAX) * - want to use same event codes across both architectures */ -static struct perf_msr amd_rapl_msrs[] = { +static struct perf_msr amd_rapl_pkg_msrs[] = { [PERF_RAPL_PP0] = { 0, &rapl_events_cores_group, NULL, false, 0 }, [PERF_RAPL_PKG] = { MSR_AMD_PKG_ENERGY_STATUS, &rapl_events_pkg_group, test_msr, false, RAPL_MSR_MASK }, [PERF_RAPL_RAM] = { 0, &rapl_events_ram_group, NULL, false, 0 }, @@ -550,8 +550,8 @@ static int rapl_check_hw_unit(void) /* protect rdmsrl() to handle virtualization */ if (rdmsrl_safe(rapl_model->msr_power_unit, &msr_rapl_power_unit_bits)) return -1; - for (i = 0; i < NR_RAPL_DOMAINS; i++) - rapl_hw_unit[i] = (msr_rapl_power_unit_bits >> 8) & 0x1FULL; + for (i = 0; i < NR_RAPL_PKG_DOMAINS; i++) + rapl_pkg_hw_unit[i] = (msr_rapl_power_unit_bits >> 8) & 0x1FULL; switch (rapl_model->unit_quirk) { /* @@ -561,11 +561,11 @@ static int rapl_check_hw_unit(void) * of 2. Datasheet, September 2014, Reference Number: 330784-001 " */ case RAPL_UNIT_QUIRK_INTEL_HSW: - rapl_hw_unit[PERF_RAPL_RAM] = 16; + rapl_pkg_hw_unit[PERF_RAPL_RAM] = 16; break; /* SPR uses a fixed energy unit for Psys domain. */ case RAPL_UNIT_QUIRK_INTEL_SPR: - rapl_hw_unit[PERF_RAPL_PSYS] = 0; + rapl_pkg_hw_unit[PERF_RAPL_PSYS] = 0; break; default: break; @@ -580,9 +580,9 @@ static int rapl_check_hw_unit(void) * if hw unit is 32, then we use 2 ms 1/200/2 */ rapl_timer_ms = 2; - if (rapl_hw_unit[0] < 32) { + if (rapl_pkg_hw_unit[0] < 32) { rapl_timer_ms = (1000 / (2 * 100)); - rapl_timer_ms *= (1ULL << (32 - rapl_hw_unit[0] - 1)); + rapl_timer_ms *= (1ULL << (32 - rapl_pkg_hw_unit[0] - 1)); } return 0; } @@ -592,12 +592,12 @@ static void __init rapl_advertise(void) int i; pr_info("API unit is 2^-32 Joules, %d fixed counters, %llu ms ovfl timer\n", - hweight32(rapl_cntr_mask), rapl_timer_ms); + hweight32(rapl_pkg_cntr_mask), rapl_timer_ms); - for (i = 0; i < NR_RAPL_DOMAINS; i++) { - if (rapl_cntr_mask & (1 << i)) { + for (i = 0; i < NR_RAPL_PKG_DOMAINS; i++) { + if (rapl_pkg_cntr_mask & (1 << i)) { pr_info("hw unit of domain %s 2^-%d Joules\n", - rapl_domain_names[i], rapl_hw_unit[i]); + rapl_pkg_domain_names[i], rapl_pkg_hw_unit[i]); } } } @@ -678,71 +678,71 @@ static int __init init_rapl_pmus(struct } static struct rapl_model model_snb = { - .events = BIT(PERF_RAPL_PP0) | + .pkg_events = BIT(PERF_RAPL_PP0) | BIT(PERF_RAPL_PKG) | BIT(PERF_RAPL_PP1), .msr_power_unit = MSR_RAPL_POWER_UNIT, - .rapl_msrs = intel_rapl_msrs, + .rapl_pkg_msrs = intel_rapl_msrs, }; static struct rapl_model model_snbep = { - .events = BIT(PERF_RAPL_PP0) | + .pkg_events = BIT(PERF_RAPL_PP0) | BIT(PERF_RAPL_PKG) | BIT(PERF_RAPL_RAM), .msr_power_unit = MSR_RAPL_POWER_UNIT, - .rapl_msrs = intel_rapl_msrs, + .rapl_pkg_msrs = intel_rapl_msrs, }; static struct rapl_model model_hsw = { - .events = BIT(PERF_RAPL_PP0) | + .pkg_events = BIT(PERF_RAPL_PP0) | BIT(PERF_RAPL_PKG) | BIT(PERF_RAPL_RAM) | BIT(PERF_RAPL_PP1), .msr_power_unit = MSR_RAPL_POWER_UNIT, - .rapl_msrs = intel_rapl_msrs, + .rapl_pkg_msrs = intel_rapl_msrs, }; static struct rapl_model model_hsx = { - .events = BIT(PERF_RAPL_PP0) | + .pkg_events = BIT(PERF_RAPL_PP0) | BIT(PERF_RAPL_PKG) | BIT(PERF_RAPL_RAM), .unit_quirk = RAPL_UNIT_QUIRK_INTEL_HSW, .msr_power_unit = MSR_RAPL_POWER_UNIT, - .rapl_msrs = intel_rapl_msrs, + .rapl_pkg_msrs = intel_rapl_msrs, }; static struct rapl_model model_knl = { - .events = BIT(PERF_RAPL_PKG) | + .pkg_events = BIT(PERF_RAPL_PKG) | BIT(PERF_RAPL_RAM), .unit_quirk = RAPL_UNIT_QUIRK_INTEL_HSW, .msr_power_unit = MSR_RAPL_POWER_UNIT, - .rapl_msrs = intel_rapl_msrs, + .rapl_pkg_msrs = intel_rapl_msrs, }; static struct rapl_model model_skl = { - .events = BIT(PERF_RAPL_PP0) | + .pkg_events = BIT(PERF_RAPL_PP0) | BIT(PERF_RAPL_PKG) | BIT(PERF_RAPL_RAM) | BIT(PERF_RAPL_PP1) | BIT(PERF_RAPL_PSYS), .msr_power_unit = MSR_RAPL_POWER_UNIT, - .rapl_msrs = intel_rapl_msrs, + .rapl_pkg_msrs = intel_rapl_msrs, }; static struct rapl_model model_spr = { - .events = BIT(PERF_RAPL_PP0) | + .pkg_events = BIT(PERF_RAPL_PP0) | BIT(PERF_RAPL_PKG) | BIT(PERF_RAPL_RAM) | BIT(PERF_RAPL_PSYS), .unit_quirk = RAPL_UNIT_QUIRK_INTEL_SPR, .msr_power_unit = MSR_RAPL_POWER_UNIT, - .rapl_msrs = intel_rapl_spr_msrs, + .rapl_pkg_msrs = intel_rapl_spr_msrs, }; static struct rapl_model model_amd_hygon = { - .events = BIT(PERF_RAPL_PKG), + .pkg_events = BIT(PERF_RAPL_PKG), .msr_power_unit = MSR_AMD_RAPL_POWER_UNIT, - .rapl_msrs = amd_rapl_msrs, + .rapl_pkg_msrs = amd_rapl_pkg_msrs, }; static const struct x86_cpu_id rapl_model_match[] __initconst = { @@ -798,11 +798,11 @@ MODULE_DEVICE_TABLE(x86cpu, rapl_model_m static int __init rapl_pmu_init(void) { const struct x86_cpu_id *id; - int rapl_pmu_scope = PERF_PMU_SCOPE_DIE; + int rapl_pkg_pmu_scope = PERF_PMU_SCOPE_DIE; int ret; - if (rapl_pmu_is_pkg_scope()) - rapl_pmu_scope = PERF_PMU_SCOPE_PKG; + if (rapl_pkg_pmu_is_pkg_scope()) + rapl_pkg_pmu_scope = PERF_PMU_SCOPE_PKG; id = x86_match_cpu(rapl_model_match); if (!id) @@ -810,20 +810,20 @@ static int __init rapl_pmu_init(void) rapl_model = (struct rapl_model *) id->driver_data; - rapl_msrs = rapl_model->rapl_msrs; + rapl_msrs = rapl_model->rapl_pkg_msrs; - rapl_cntr_mask = perf_msr_probe(rapl_msrs, PERF_RAPL_MAX, - false, (void *) &rapl_model->events); + rapl_pkg_cntr_mask = perf_msr_probe(rapl_msrs, PERF_RAPL_PKG_EVENTS_MAX, + false, (void *) &rapl_model->pkg_events); ret = rapl_check_hw_unit(); if (ret) return ret; - ret = init_rapl_pmus(&rapl_pmus, rapl_pmu_scope); + ret = init_rapl_pmus(&rapl_pmus_pkg, rapl_pkg_pmu_scope); if (ret) return ret; - ret = perf_pmu_register(&rapl_pmus->pmu, "power", -1); + ret = perf_pmu_register(&rapl_pmus_pkg->pmu, "power", -1); if (ret) goto out; @@ -832,14 +832,14 @@ static int __init rapl_pmu_init(void) out: pr_warn("Initialization failed (%d), disabled\n", ret); - cleanup_rapl_pmus(rapl_pmus); + cleanup_rapl_pmus(rapl_pmus_pkg); return ret; } module_init(rapl_pmu_init); static void __exit intel_rapl_exit(void) { - perf_pmu_unregister(&rapl_pmus->pmu); - cleanup_rapl_pmus(rapl_pmus); + perf_pmu_unregister(&rapl_pmus_pkg->pmu); + cleanup_rapl_pmus(rapl_pmus_pkg); } module_exit(intel_rapl_exit);