diff options
Diffstat (limited to 'arch/x86/events/intel')
| -rw-r--r-- | arch/x86/events/intel/bts.c | 4 | ||||
| -rw-r--r-- | arch/x86/events/intel/core.c | 135 | ||||
| -rw-r--r-- | arch/x86/events/intel/cstate.c | 12 | ||||
| -rw-r--r-- | arch/x86/events/intel/ds.c | 2 | ||||
| -rw-r--r-- | arch/x86/events/intel/pt.c | 14 | ||||
| -rw-r--r-- | arch/x86/events/intel/rapl.c | 9 | ||||
| -rw-r--r-- | arch/x86/events/intel/uncore.c | 9 | ||||
| -rw-r--r-- | arch/x86/events/intel/uncore_snb.c | 9 |
8 files changed, 109 insertions, 85 deletions
diff --git a/arch/x86/events/intel/bts.c b/arch/x86/events/intel/bts.c index a01ef1b0f883..7cdd7b13bbda 100644 --- a/arch/x86/events/intel/bts.c +++ b/arch/x86/events/intel/bts.c @@ -77,10 +77,12 @@ static size_t buf_size(struct page *page) } static void * -bts_buffer_setup_aux(int cpu, void **pages, int nr_pages, bool overwrite) +bts_buffer_setup_aux(struct perf_event *event, void **pages, + int nr_pages, bool overwrite) { struct bts_buffer *buf; struct page *page; + int cpu = event->cpu; int node = (cpu == -1) ? cpu : cpu_to_node(cpu); unsigned long offset; size_t size = nr_pages << PAGE_SHIFT; diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index 730978dff63f..17096d3cd616 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -18,6 +18,7 @@ #include <asm/hardirq.h> #include <asm/intel-family.h> #include <asm/apic.h> +#include <asm/cpu_device_id.h> #include "../perf_event.h" @@ -3206,16 +3207,27 @@ static struct perf_guest_switch_msr *intel_guest_get_msrs(int *nr) arr[0].msr = MSR_CORE_PERF_GLOBAL_CTRL; arr[0].host = x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_guest_mask; arr[0].guest = x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_host_mask; - /* - * If PMU counter has PEBS enabled it is not enough to disable counter - * on a guest entry since PEBS memory write can overshoot guest entry - * and corrupt guest memory. Disabling PEBS solves the problem. - */ - arr[1].msr = MSR_IA32_PEBS_ENABLE; - arr[1].host = cpuc->pebs_enabled; - arr[1].guest = 0; + if (x86_pmu.flags & PMU_FL_PEBS_ALL) + arr[0].guest &= ~cpuc->pebs_enabled; + else + arr[0].guest &= ~(cpuc->pebs_enabled & PEBS_COUNTER_MASK); + *nr = 1; + + if (x86_pmu.pebs && x86_pmu.pebs_no_isolation) { + /* + * If PMU counter has PEBS enabled it is not enough to + * disable counter on a guest entry since PEBS memory + * write can overshoot guest entry and corrupt guest + * memory. Disabling PEBS solves the problem. + * + * Don't do this if the CPU already enforces it. + */ + arr[1].msr = MSR_IA32_PEBS_ENABLE; + arr[1].host = cpuc->pebs_enabled; + arr[1].guest = 0; + *nr = 2; + } - *nr = 2; return arr; } @@ -3748,36 +3760,62 @@ static __init void intel_clovertown_quirk(void) x86_pmu.pebs_constraints = NULL; } -static int intel_snb_pebs_broken(int cpu) +static const struct x86_cpu_desc isolation_ucodes[] = { + INTEL_CPU_DESC(INTEL_FAM6_HASWELL_CORE, 3, 0x0000001f), + INTEL_CPU_DESC(INTEL_FAM6_HASWELL_ULT, 1, 0x0000001e), + INTEL_CPU_DESC(INTEL_FAM6_HASWELL_GT3E, 1, 0x00000015), + INTEL_CPU_DESC(INTEL_FAM6_HASWELL_X, 2, 0x00000037), + INTEL_CPU_DESC(INTEL_FAM6_HASWELL_X, 4, 0x0000000a), + INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_CORE, 4, 0x00000023), + INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_GT3E, 1, 0x00000014), + INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_XEON_D, 2, 0x00000010), + INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_XEON_D, 3, 0x07000009), + INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_XEON_D, 4, 0x0f000009), + INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_XEON_D, 5, 0x0e000002), + INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_X, 2, 0x0b000014), + INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 3, 0x00000021), + INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 4, 0x00000000), + INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_MOBILE, 3, 0x0000007c), + INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_DESKTOP, 3, 0x0000007c), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_DESKTOP, 9, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_MOBILE, 9, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_MOBILE, 10, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_MOBILE, 11, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_MOBILE, 12, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_DESKTOP, 10, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_DESKTOP, 11, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_DESKTOP, 12, 0x0000004e), + INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_DESKTOP, 13, 0x0000004e), + {} +}; + +static void intel_check_pebs_isolation(void) { - u32 rev = UINT_MAX; /* default to broken for unknown models */ + x86_pmu.pebs_no_isolation = !x86_cpu_has_min_microcode_rev(isolation_ucodes); +} - switch (cpu_data(cpu).x86_model) { - case INTEL_FAM6_SANDYBRIDGE: - rev = 0x28; - break; +static __init void intel_pebs_isolation_quirk(void) +{ + WARN_ON_ONCE(x86_pmu.check_microcode); + x86_pmu.check_microcode = intel_check_pebs_isolation; + intel_check_pebs_isolation(); +} - case INTEL_FAM6_SANDYBRIDGE_X: - switch (cpu_data(cpu).x86_stepping) { - case 6: rev = 0x618; break; - case 7: rev = 0x70c; break; - } - } +static const struct x86_cpu_desc pebs_ucodes[] = { + INTEL_CPU_DESC(INTEL_FAM6_SANDYBRIDGE, 7, 0x00000028), + INTEL_CPU_DESC(INTEL_FAM6_SANDYBRIDGE_X, 6, 0x00000618), + INTEL_CPU_DESC(INTEL_FAM6_SANDYBRIDGE_X, 7, 0x0000070c), + {} +}; - return (cpu_data(cpu).microcode < rev); +static bool intel_snb_pebs_broken(void) +{ + return !x86_cpu_has_min_microcode_rev(pebs_ucodes); } static void intel_snb_check_microcode(void) { - int pebs_broken = 0; - int cpu; - - for_each_online_cpu(cpu) { - if ((pebs_broken = intel_snb_pebs_broken(cpu))) - break; - } - - if (pebs_broken == x86_pmu.pebs_broken) + if (intel_snb_pebs_broken() == x86_pmu.pebs_broken) return; /* @@ -3894,23 +3932,22 @@ static __init void intel_nehalem_quirk(void) } } -static bool intel_glp_counter_freezing_broken(int cpu) -{ - u32 rev = UINT_MAX; /* default to broken for unknown stepping */ - - switch (cpu_data(cpu).x86_stepping) { - case 1: - rev = 0x28; - break; - case 8: - rev = 0x6; - break; - } +static const struct x86_cpu_desc counter_freezing_ucodes[] = { + INTEL_CPU_DESC(INTEL_FAM6_ATOM_GOLDMONT, 2, 0x0000000e), + INTEL_CPU_DESC(INTEL_FAM6_ATOM_GOLDMONT, 9, 0x0000002e), + INTEL_CPU_DESC(INTEL_FAM6_ATOM_GOLDMONT, 10, 0x00000008), + INTEL_CPU_DESC(INTEL_FAM6_ATOM_GOLDMONT_X, 1, 0x00000028), + INTEL_CPU_DESC(INTEL_FAM6_ATOM_GOLDMONT_PLUS, 1, 0x00000028), + INTEL_CPU_DESC(INTEL_FAM6_ATOM_GOLDMONT_PLUS, 8, 0x00000006), + {} +}; - return (cpu_data(cpu).microcode < rev); +static bool intel_counter_freezing_broken(void) +{ + return !x86_cpu_has_min_microcode_rev(counter_freezing_ucodes); } -static __init void intel_glp_counter_freezing_quirk(void) +static __init void intel_counter_freezing_quirk(void) { /* Check if it's already disabled */ if (disable_counter_freezing) @@ -3920,7 +3957,7 @@ static __init void intel_glp_counter_freezing_quirk(void) * If the system starts with the wrong ucode, leave the * counter-freezing feature permanently disabled. */ - if (intel_glp_counter_freezing_broken(raw_smp_processor_id())) { + if (intel_counter_freezing_broken()) { pr_info("PMU counter freezing disabled due to CPU errata," "please upgrade microcode\n"); x86_pmu.counter_freezing = false; @@ -4271,6 +4308,7 @@ __init int intel_pmu_init(void) case INTEL_FAM6_ATOM_GOLDMONT: case INTEL_FAM6_ATOM_GOLDMONT_X: + x86_add_quirk(intel_counter_freezing_quirk); memcpy(hw_cache_event_ids, glm_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, glm_hw_cache_extra_regs, @@ -4297,7 +4335,7 @@ __init int intel_pmu_init(void) break; case INTEL_FAM6_ATOM_GOLDMONT_PLUS: - x86_add_quirk(intel_glp_counter_freezing_quirk); + x86_add_quirk(intel_counter_freezing_quirk); memcpy(hw_cache_event_ids, glp_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, glp_hw_cache_extra_regs, @@ -4440,6 +4478,7 @@ __init int intel_pmu_init(void) case INTEL_FAM6_HASWELL_ULT: case INTEL_FAM6_HASWELL_GT3E: x86_add_quirk(intel_ht_bug); + x86_add_quirk(intel_pebs_isolation_quirk); x86_pmu.late_ack = true; memcpy(hw_cache_event_ids, hsw_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, hsw_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); @@ -4471,6 +4510,7 @@ __init int intel_pmu_init(void) case INTEL_FAM6_BROADWELL_XEON_D: case INTEL_FAM6_BROADWELL_GT3E: case INTEL_FAM6_BROADWELL_X: + x86_add_quirk(intel_pebs_isolation_quirk); x86_pmu.late_ack = true; memcpy(hw_cache_event_ids, hsw_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, hsw_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); @@ -4533,6 +4573,7 @@ __init int intel_pmu_init(void) case INTEL_FAM6_SKYLAKE_X: case INTEL_FAM6_KABYLAKE_MOBILE: case INTEL_FAM6_KABYLAKE_DESKTOP: + x86_add_quirk(intel_pebs_isolation_quirk); x86_pmu.late_ack = true; memcpy(hw_cache_event_ids, skl_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, skl_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c index d2e780705c5a..94a4b7fc75d0 100644 --- a/arch/x86/events/intel/cstate.c +++ b/arch/x86/events/intel/cstate.c @@ -280,13 +280,7 @@ static int cstate_pmu_event_init(struct perf_event *event) return -ENOENT; /* unsupported modes and filters */ - if (event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_hv || - event->attr.exclude_idle || - event->attr.exclude_host || - event->attr.exclude_guest || - event->attr.sample_period) /* no sampling */ + if (event->attr.sample_period) /* no sampling */ return -EINVAL; if (event->cpu < 0) @@ -437,7 +431,7 @@ static struct pmu cstate_core_pmu = { .start = cstate_pmu_event_start, .stop = cstate_pmu_event_stop, .read = cstate_pmu_event_update, - .capabilities = PERF_PMU_CAP_NO_INTERRUPT, + .capabilities = PERF_PMU_CAP_NO_INTERRUPT | PERF_PMU_CAP_NO_EXCLUDE, .module = THIS_MODULE, }; @@ -451,7 +445,7 @@ static struct pmu cstate_pkg_pmu = { .start = cstate_pmu_event_start, .stop = cstate_pmu_event_stop, .read = cstate_pmu_event_update, - .capabilities = PERF_PMU_CAP_NO_INTERRUPT, + .capabilities = PERF_PMU_CAP_NO_INTERRUPT | PERF_PMU_CAP_NO_EXCLUDE, .module = THIS_MODULE, }; diff --git a/arch/x86/events/intel/ds.c b/arch/x86/events/intel/ds.c index e9acf1d2e7b2..10c99ce1fead 100644 --- a/arch/x86/events/intel/ds.c +++ b/arch/x86/events/intel/ds.c @@ -1628,6 +1628,8 @@ void __init intel_ds_init(void) x86_pmu.bts = boot_cpu_has(X86_FEATURE_BTS); x86_pmu.pebs = boot_cpu_has(X86_FEATURE_PEBS); x86_pmu.pebs_buffer_size = PEBS_BUFFER_SIZE; + if (x86_pmu.version <= 4) + x86_pmu.pebs_no_isolation = 1; if (x86_pmu.pebs) { char pebs_type = x86_pmu.intel_cap.pebs_trap ? '+' : '-'; int format = x86_pmu.intel_cap.pebs_format; diff --git a/arch/x86/events/intel/pt.c b/arch/x86/events/intel/pt.c index 9494ca68fd9d..fb3a2f13fc70 100644 --- a/arch/x86/events/intel/pt.c +++ b/arch/x86/events/intel/pt.c @@ -1114,10 +1114,11 @@ static int pt_buffer_init_topa(struct pt_buffer *buf, unsigned long nr_pages, * Return: Our private PT buffer structure. */ static void * -pt_buffer_setup_aux(int cpu, void **pages, int nr_pages, bool snapshot) +pt_buffer_setup_aux(struct perf_event *event, void **pages, + int nr_pages, bool snapshot) { struct pt_buffer *buf; - int node, ret; + int node, ret, cpu = event->cpu; if (!nr_pages) return NULL; @@ -1222,7 +1223,8 @@ static int pt_event_addr_filters_validate(struct list_head *filters) static void pt_event_addr_filters_sync(struct perf_event *event) { struct perf_addr_filters_head *head = perf_event_addr_filters(event); - unsigned long msr_a, msr_b, *offs = event->addr_filters_offs; + unsigned long msr_a, msr_b; + struct perf_addr_filter_range *fr = event->addr_filter_ranges; struct pt_filters *filters = event->hw.addr_filters; struct perf_addr_filter *filter; int range = 0; @@ -1231,12 +1233,12 @@ static void pt_event_addr_filters_sync(struct perf_event *event) return; list_for_each_entry(filter, &head->list, entry) { - if (filter->path.dentry && !offs[range]) { + if (filter->path.dentry && !fr[range].start) { msr_a = msr_b = 0; } else { /* apply the offset */ - msr_a = filter->offset + offs[range]; - msr_b = filter->size + msr_a - 1; + msr_a = fr[range].start; + msr_b = msr_a + fr[range].size - 1; } filters->filter[range].msr_a = msr_a; diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c index 91039ffed633..94dc564146ca 100644 --- a/arch/x86/events/intel/rapl.c +++ b/arch/x86/events/intel/rapl.c @@ -397,13 +397,7 @@ static int rapl_pmu_event_init(struct perf_event *event) return -EINVAL; /* unsupported modes and filters */ - if (event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_hv || - event->attr.exclude_idle || - event->attr.exclude_host || - event->attr.exclude_guest || - event->attr.sample_period) /* no sampling */ + if (event->attr.sample_period) /* no sampling */ return -EINVAL; /* must be done before validate_group */ @@ -699,6 +693,7 @@ static int __init init_rapl_pmus(void) rapl_pmus->pmu.stop = rapl_pmu_event_stop; rapl_pmus->pmu.read = rapl_pmu_event_read; rapl_pmus->pmu.module = THIS_MODULE; + rapl_pmus->pmu.capabilities = PERF_PMU_CAP_NO_EXCLUDE; return 0; } diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c index 27a461414b30..d516161c00c4 100644 --- a/arch/x86/events/intel/uncore.c +++ b/arch/x86/events/intel/uncore.c @@ -695,14 +695,6 @@ static int uncore_pmu_event_init(struct perf_event *event) if (pmu->func_id < 0) return -ENOENT; - /* - * Uncore PMU does measure at all privilege level all the time. - * So it doesn't make sense to specify any exclude bits. - */ - if (event->attr.exclude_user || event->attr.exclude_kernel || - event->attr.exclude_hv || event->attr.exclude_idle) - return -EINVAL; - /* Sampling not supported yet */ if (hwc->sample_period) return -EINVAL; @@ -800,6 +792,7 @@ static int uncore_pmu_register(struct intel_uncore_pmu *pmu) .stop = uncore_pmu_event_stop, .read = uncore_pmu_event_read, .module = THIS_MODULE, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; } else { pmu->pmu = *pmu->type->pmu; diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c index 2593b0d7aeee..b12517fae77a 100644 --- a/arch/x86/events/intel/uncore_snb.c +++ b/arch/x86/events/intel/uncore_snb.c @@ -397,13 +397,7 @@ static int snb_uncore_imc_event_init(struct perf_event *event) return -EINVAL; /* unsupported modes and filters */ - if (event->attr.exclude_user || - event->attr.exclude_kernel || - event->attr.exclude_hv || - event->attr.exclude_idle || - event->attr.exclude_host || - event->attr.exclude_guest || - event->attr.sample_period) /* no sampling */ + if (event->attr.sample_period) /* no sampling */ return -EINVAL; /* @@ -497,6 +491,7 @@ static struct pmu snb_uncore_imc_pmu = { .start = uncore_pmu_event_start, .stop = uncore_pmu_event_stop, .read = uncore_pmu_event_read, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE, }; static struct intel_uncore_ops snb_uncore_imc_ops = { |