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6622 6623 6624 6625 6626 6627 6628 6629 6630 6631 6632 6633 6634 6635 6636 6637 6638 6639 6640 6641 6642 6643 6644 6645 6646 6647 6648 6649 6650 6651 6652 6653 6654 6655 6656 | // SPDX-License-Identifier: GPL-2.0-only /* * Per core/cpu state * * Used to coordinate shared registers between HT threads or * among events on a single PMU. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/stddef.h> #include <linux/types.h> #include <linux/init.h> #include <linux/slab.h> #include <linux/export.h> #include <linux/nmi.h> #include <linux/kvm_host.h> #include <asm/cpufeature.h> #include <asm/hardirq.h> #include <asm/intel-family.h> #include <asm/intel_pt.h> #include <asm/apic.h> #include <asm/cpu_device_id.h> #include "../perf_event.h" /* * Intel PerfMon, used on Core and later. */ static u64 intel_perfmon_event_map[PERF_COUNT_HW_MAX] __read_mostly = { [PERF_COUNT_HW_CPU_CYCLES] = 0x003c, [PERF_COUNT_HW_INSTRUCTIONS] = 0x00c0, [PERF_COUNT_HW_CACHE_REFERENCES] = 0x4f2e, [PERF_COUNT_HW_CACHE_MISSES] = 0x412e, [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 0x00c4, [PERF_COUNT_HW_BRANCH_MISSES] = 0x00c5, [PERF_COUNT_HW_BUS_CYCLES] = 0x013c, [PERF_COUNT_HW_REF_CPU_CYCLES] = 0x0300, /* pseudo-encoding */ }; static struct event_constraint intel_core_event_constraints[] __read_mostly = { INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */ INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */ INTEL_EVENT_CONSTRAINT(0xc1, 0x1), /* FP_COMP_INSTR_RET */ EVENT_CONSTRAINT_END }; static struct event_constraint intel_core2_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_EVENT_CONSTRAINT(0x10, 0x1), /* FP_COMP_OPS_EXE */ INTEL_EVENT_CONSTRAINT(0x11, 0x2), /* FP_ASSIST */ INTEL_EVENT_CONSTRAINT(0x12, 0x2), /* MUL */ INTEL_EVENT_CONSTRAINT(0x13, 0x2), /* DIV */ INTEL_EVENT_CONSTRAINT(0x14, 0x1), /* CYCLES_DIV_BUSY */ INTEL_EVENT_CONSTRAINT(0x18, 0x1), /* IDLE_DURING_DIV */ INTEL_EVENT_CONSTRAINT(0x19, 0x2), /* DELAYED_BYPASS */ INTEL_EVENT_CONSTRAINT(0xa1, 0x1), /* RS_UOPS_DISPATCH_CYCLES */ INTEL_EVENT_CONSTRAINT(0xc9, 0x1), /* ITLB_MISS_RETIRED (T30-9) */ INTEL_EVENT_CONSTRAINT(0xcb, 0x1), /* MEM_LOAD_RETIRED */ EVENT_CONSTRAINT_END }; static struct event_constraint intel_nehalem_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_EVENT_CONSTRAINT(0x40, 0x3), /* L1D_CACHE_LD */ INTEL_EVENT_CONSTRAINT(0x41, 0x3), /* L1D_CACHE_ST */ INTEL_EVENT_CONSTRAINT(0x42, 0x3), /* L1D_CACHE_LOCK */ INTEL_EVENT_CONSTRAINT(0x43, 0x3), /* L1D_ALL_REF */ INTEL_EVENT_CONSTRAINT(0x48, 0x3), /* L1D_PEND_MISS */ INTEL_EVENT_CONSTRAINT(0x4e, 0x3), /* L1D_PREFETCH */ INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */ INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */ EVENT_CONSTRAINT_END }; static struct extra_reg intel_nehalem_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x100b), EVENT_EXTRA_END }; static struct event_constraint intel_westmere_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_EVENT_CONSTRAINT(0x51, 0x3), /* L1D */ INTEL_EVENT_CONSTRAINT(0x60, 0x1), /* OFFCORE_REQUESTS_OUTSTANDING */ INTEL_EVENT_CONSTRAINT(0x63, 0x3), /* CACHE_LOCK_CYCLES */ INTEL_EVENT_CONSTRAINT(0xb3, 0x1), /* SNOOPQ_REQUEST_OUTSTANDING */ EVENT_CONSTRAINT_END }; static struct event_constraint intel_snb_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_NO_DISPATCH */ INTEL_UEVENT_CONSTRAINT(0x05a3, 0xf), /* CYCLE_ACTIVITY.STALLS_L2_PENDING */ INTEL_UEVENT_CONSTRAINT(0x02a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */ INTEL_UEVENT_CONSTRAINT(0x06a3, 0x4), /* CYCLE_ACTIVITY.STALLS_L1D_PENDING */ INTEL_EVENT_CONSTRAINT(0x48, 0x4), /* L1D_PEND_MISS.PENDING */ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_NO_DISPATCH */ INTEL_UEVENT_CONSTRAINT(0x02a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */ /* * When HT is off these events can only run on the bottom 4 counters * When HT is on, they are impacted by the HT bug and require EXCL access */ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOPS_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */ EVENT_CONSTRAINT_END }; static struct event_constraint intel_ivb_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_UEVENT_CONSTRAINT(0x0148, 0x4), /* L1D_PEND_MISS.PENDING */ INTEL_UEVENT_CONSTRAINT(0x0279, 0xf), /* IDQ.EMPTY */ INTEL_UEVENT_CONSTRAINT(0x019c, 0xf), /* IDQ_UOPS_NOT_DELIVERED.CORE */ INTEL_UEVENT_CONSTRAINT(0x02a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_LDM_PENDING */ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* CYCLE_ACTIVITY.CYCLES_NO_EXECUTE */ INTEL_UEVENT_CONSTRAINT(0x05a3, 0xf), /* CYCLE_ACTIVITY.STALLS_L2_PENDING */ INTEL_UEVENT_CONSTRAINT(0x06a3, 0xf), /* CYCLE_ACTIVITY.STALLS_LDM_PENDING */ INTEL_UEVENT_CONSTRAINT(0x08a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */ INTEL_UEVENT_CONSTRAINT(0x0ca3, 0x4), /* CYCLE_ACTIVITY.STALLS_L1D_PENDING */ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */ /* * When HT is off these events can only run on the bottom 4 counters * When HT is on, they are impacted by the HT bug and require EXCL access */ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOPS_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */ EVENT_CONSTRAINT_END }; static struct extra_reg intel_westmere_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0xffff, RSP_0), INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0xffff, RSP_1), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x100b), EVENT_EXTRA_END }; static struct event_constraint intel_v1_event_constraints[] __read_mostly = { EVENT_CONSTRAINT_END }; static struct event_constraint intel_gen_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ EVENT_CONSTRAINT_END }; static struct event_constraint intel_v5_gen_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ FIXED_EVENT_CONSTRAINT(0x0400, 3), /* SLOTS */ FIXED_EVENT_CONSTRAINT(0x0500, 4), FIXED_EVENT_CONSTRAINT(0x0600, 5), FIXED_EVENT_CONSTRAINT(0x0700, 6), FIXED_EVENT_CONSTRAINT(0x0800, 7), FIXED_EVENT_CONSTRAINT(0x0900, 8), FIXED_EVENT_CONSTRAINT(0x0a00, 9), FIXED_EVENT_CONSTRAINT(0x0b00, 10), FIXED_EVENT_CONSTRAINT(0x0c00, 11), FIXED_EVENT_CONSTRAINT(0x0d00, 12), FIXED_EVENT_CONSTRAINT(0x0e00, 13), FIXED_EVENT_CONSTRAINT(0x0f00, 14), FIXED_EVENT_CONSTRAINT(0x1000, 15), EVENT_CONSTRAINT_END }; static struct event_constraint intel_slm_event_constraints[] __read_mostly = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* pseudo CPU_CLK_UNHALTED.REF */ EVENT_CONSTRAINT_END }; static struct event_constraint intel_skl_event_constraints[] = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_UEVENT_CONSTRAINT(0x1c0, 0x2), /* INST_RETIRED.PREC_DIST */ /* * when HT is off, these can only run on the bottom 4 counters */ INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_INST_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_L3_HIT_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xcd, 0xf), /* MEM_TRANS_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xc6, 0xf), /* FRONTEND_RETIRED.* */ EVENT_CONSTRAINT_END }; static struct extra_reg intel_knl_extra_regs[] __read_mostly = { INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x799ffbb6e7ull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x399ffbffe7ull, RSP_1), EVENT_EXTRA_END }; static struct extra_reg intel_snb_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3f807f8fffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3f807f8fffull, RSP_1), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), EVENT_EXTRA_END }; static struct extra_reg intel_snbep_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffff8fffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3fffff8fffull, RSP_1), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), EVENT_EXTRA_END }; static struct extra_reg intel_skl_extra_regs[] __read_mostly = { INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffff8fffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3fffff8fffull, RSP_1), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), /* * Note the low 8 bits eventsel code is not a continuous field, containing * some #GPing bits. These are masked out. */ INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff17, FE), EVENT_EXTRA_END }; static struct event_constraint intel_icl_event_constraints[] = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x01c0, 0), /* old INST_RETIRED.PREC_DIST */ FIXED_EVENT_CONSTRAINT(0x0100, 0), /* INST_RETIRED.PREC_DIST */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ FIXED_EVENT_CONSTRAINT(0x0400, 3), /* SLOTS */ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_RETIRING, 0), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BAD_SPEC, 1), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_FE_BOUND, 2), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BE_BOUND, 3), INTEL_EVENT_CONSTRAINT_RANGE(0x03, 0x0a, 0xf), INTEL_EVENT_CONSTRAINT_RANGE(0x1f, 0x28, 0xf), INTEL_EVENT_CONSTRAINT(0x32, 0xf), /* SW_PREFETCH_ACCESS.* */ INTEL_EVENT_CONSTRAINT_RANGE(0x48, 0x56, 0xf), INTEL_EVENT_CONSTRAINT_RANGE(0x60, 0x8b, 0xf), INTEL_UEVENT_CONSTRAINT(0x04a3, 0xff), /* CYCLE_ACTIVITY.STALLS_TOTAL */ INTEL_UEVENT_CONSTRAINT(0x10a3, 0xff), /* CYCLE_ACTIVITY.CYCLES_MEM_ANY */ INTEL_UEVENT_CONSTRAINT(0x14a3, 0xff), /* CYCLE_ACTIVITY.STALLS_MEM_ANY */ INTEL_EVENT_CONSTRAINT(0xa3, 0xf), /* CYCLE_ACTIVITY.* */ INTEL_EVENT_CONSTRAINT_RANGE(0xa8, 0xb0, 0xf), INTEL_EVENT_CONSTRAINT_RANGE(0xb7, 0xbd, 0xf), INTEL_EVENT_CONSTRAINT_RANGE(0xd0, 0xe6, 0xf), INTEL_EVENT_CONSTRAINT(0xef, 0xf), INTEL_EVENT_CONSTRAINT_RANGE(0xf0, 0xf4, 0xf), EVENT_CONSTRAINT_END }; static struct extra_reg intel_icl_extra_regs[] __read_mostly = { INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffffbfffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x01bb, MSR_OFFCORE_RSP_1, 0x3fffffbfffull, RSP_1), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff17, FE), EVENT_EXTRA_END }; static struct extra_reg intel_spr_extra_regs[] __read_mostly = { INTEL_UEVENT_EXTRA_REG(0x012a, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x012b, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x01cd), INTEL_UEVENT_EXTRA_REG(0x01c6, MSR_PEBS_FRONTEND, 0x7fff1f, FE), INTEL_UEVENT_EXTRA_REG(0x40ad, MSR_PEBS_FRONTEND, 0x7, FE), INTEL_UEVENT_EXTRA_REG(0x04c2, MSR_PEBS_FRONTEND, 0x8, FE), EVENT_EXTRA_END }; static struct event_constraint intel_spr_event_constraints[] = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x0100, 0), /* INST_RETIRED.PREC_DIST */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ FIXED_EVENT_CONSTRAINT(0x0400, 3), /* SLOTS */ METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_RETIRING, 0), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BAD_SPEC, 1), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_FE_BOUND, 2), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BE_BOUND, 3), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_HEAVY_OPS, 4), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_BR_MISPREDICT, 5), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_FETCH_LAT, 6), METRIC_EVENT_CONSTRAINT(INTEL_TD_METRIC_MEM_BOUND, 7), INTEL_EVENT_CONSTRAINT(0x2e, 0xff), INTEL_EVENT_CONSTRAINT(0x3c, 0xff), /* * Generally event codes < 0x90 are restricted to counters 0-3. * The 0x2E and 0x3C are exception, which has no restriction. */ INTEL_EVENT_CONSTRAINT_RANGE(0x01, 0x8f, 0xf), INTEL_UEVENT_CONSTRAINT(0x01a3, 0xf), INTEL_UEVENT_CONSTRAINT(0x02a3, 0xf), INTEL_UEVENT_CONSTRAINT(0x08a3, 0xf), INTEL_UEVENT_CONSTRAINT(0x04a4, 0x1), INTEL_UEVENT_CONSTRAINT(0x08a4, 0x1), INTEL_UEVENT_CONSTRAINT(0x02cd, 0x1), INTEL_EVENT_CONSTRAINT(0xce, 0x1), INTEL_EVENT_CONSTRAINT_RANGE(0xd0, 0xdf, 0xf), /* * Generally event codes >= 0x90 are likely to have no restrictions. * The exception are defined as above. */ INTEL_EVENT_CONSTRAINT_RANGE(0x90, 0xfe, 0xff), EVENT_CONSTRAINT_END }; EVENT_ATTR_STR(mem-loads, mem_ld_nhm, "event=0x0b,umask=0x10,ldlat=3"); EVENT_ATTR_STR(mem-loads, mem_ld_snb, "event=0xcd,umask=0x1,ldlat=3"); EVENT_ATTR_STR(mem-stores, mem_st_snb, "event=0xcd,umask=0x2"); static struct attribute *nhm_mem_events_attrs[] = { EVENT_PTR(mem_ld_nhm), NULL, }; /* * topdown events for Intel Core CPUs. * * The events are all in slots, which is a free slot in a 4 wide * pipeline. Some events are already reported in slots, for cycle * events we multiply by the pipeline width (4). * * With Hyper Threading on, topdown metrics are either summed or averaged * between the threads of a core: (count_t0 + count_t1). * * For the average case the metric is always scaled to pipeline width, * so we use factor 2 ((count_t0 + count_t1) / 2 * 4) */ EVENT_ATTR_STR_HT(topdown-total-slots, td_total_slots, "event=0x3c,umask=0x0", /* cpu_clk_unhalted.thread */ "event=0x3c,umask=0x0,any=1"); /* cpu_clk_unhalted.thread_any */ EVENT_ATTR_STR_HT(topdown-total-slots.scale, td_total_slots_scale, "4", "2"); EVENT_ATTR_STR(topdown-slots-issued, td_slots_issued, "event=0xe,umask=0x1"); /* uops_issued.any */ EVENT_ATTR_STR(topdown-slots-retired, td_slots_retired, "event=0xc2,umask=0x2"); /* uops_retired.retire_slots */ EVENT_ATTR_STR(topdown-fetch-bubbles, td_fetch_bubbles, "event=0x9c,umask=0x1"); /* idq_uops_not_delivered_core */ EVENT_ATTR_STR_HT(topdown-recovery-bubbles, td_recovery_bubbles, "event=0xd,umask=0x3,cmask=1", /* int_misc.recovery_cycles */ "event=0xd,umask=0x3,cmask=1,any=1"); /* int_misc.recovery_cycles_any */ EVENT_ATTR_STR_HT(topdown-recovery-bubbles.scale, td_recovery_bubbles_scale, "4", "2"); EVENT_ATTR_STR(slots, slots, "event=0x00,umask=0x4"); EVENT_ATTR_STR(topdown-retiring, td_retiring, "event=0x00,umask=0x80"); EVENT_ATTR_STR(topdown-bad-spec, td_bad_spec, "event=0x00,umask=0x81"); EVENT_ATTR_STR(topdown-fe-bound, td_fe_bound, "event=0x00,umask=0x82"); EVENT_ATTR_STR(topdown-be-bound, td_be_bound, "event=0x00,umask=0x83"); EVENT_ATTR_STR(topdown-heavy-ops, td_heavy_ops, "event=0x00,umask=0x84"); EVENT_ATTR_STR(topdown-br-mispredict, td_br_mispredict, "event=0x00,umask=0x85"); EVENT_ATTR_STR(topdown-fetch-lat, td_fetch_lat, "event=0x00,umask=0x86"); EVENT_ATTR_STR(topdown-mem-bound, td_mem_bound, "event=0x00,umask=0x87"); static struct attribute *snb_events_attrs[] = { EVENT_PTR(td_slots_issued), EVENT_PTR(td_slots_retired), EVENT_PTR(td_fetch_bubbles), EVENT_PTR(td_total_slots), EVENT_PTR(td_total_slots_scale), EVENT_PTR(td_recovery_bubbles), EVENT_PTR(td_recovery_bubbles_scale), NULL, }; static struct attribute *snb_mem_events_attrs[] = { EVENT_PTR(mem_ld_snb), EVENT_PTR(mem_st_snb), NULL, }; static struct event_constraint intel_hsw_event_constraints[] = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_UEVENT_CONSTRAINT(0x148, 0x4), /* L1D_PEND_MISS.PENDING */ INTEL_UEVENT_CONSTRAINT(0x01c0, 0x2), /* INST_RETIRED.PREC_DIST */ INTEL_EVENT_CONSTRAINT(0xcd, 0x8), /* MEM_TRANS_RETIRED.LOAD_LATENCY */ /* CYCLE_ACTIVITY.CYCLES_L1D_PENDING */ INTEL_UEVENT_CONSTRAINT(0x08a3, 0x4), /* CYCLE_ACTIVITY.STALLS_L1D_PENDING */ INTEL_UEVENT_CONSTRAINT(0x0ca3, 0x4), /* CYCLE_ACTIVITY.CYCLES_NO_EXECUTE */ INTEL_UEVENT_CONSTRAINT(0x04a3, 0xf), /* * When HT is off these events can only run on the bottom 4 counters * When HT is on, they are impacted by the HT bug and require EXCL access */ INTEL_EXCLEVT_CONSTRAINT(0xd0, 0xf), /* MEM_UOPS_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_UOPS_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_UOPS_LLC_HIT_RETIRED.* */ INTEL_EXCLEVT_CONSTRAINT(0xd3, 0xf), /* MEM_LOAD_UOPS_LLC_MISS_RETIRED.* */ EVENT_CONSTRAINT_END }; static struct event_constraint intel_bdw_event_constraints[] = { FIXED_EVENT_CONSTRAINT(0x00c0, 0), /* INST_RETIRED.ANY */ FIXED_EVENT_CONSTRAINT(0x003c, 1), /* CPU_CLK_UNHALTED.CORE */ FIXED_EVENT_CONSTRAINT(0x0300, 2), /* CPU_CLK_UNHALTED.REF */ INTEL_UEVENT_CONSTRAINT(0x148, 0x4), /* L1D_PEND_MISS.PENDING */ INTEL_UBIT_EVENT_CONSTRAINT(0x8a3, 0x4), /* CYCLE_ACTIVITY.CYCLES_L1D_MISS */ /* * when HT is off, these can only run on the bottom 4 counters */ INTEL_EVENT_CONSTRAINT(0xd0, 0xf), /* MEM_INST_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd1, 0xf), /* MEM_LOAD_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xd2, 0xf), /* MEM_LOAD_L3_HIT_RETIRED.* */ INTEL_EVENT_CONSTRAINT(0xcd, 0xf), /* MEM_TRANS_RETIRED.* */ EVENT_CONSTRAINT_END }; static u64 intel_pmu_event_map(int hw_event) { return intel_perfmon_event_map[hw_event]; } static __initconst const u64 spr_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x81d0, [ C(RESULT_MISS) ] = 0xe124, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x82d0, }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_MISS) ] = 0xe424, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x12a, [ C(RESULT_MISS) ] = 0x12a, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x12a, [ C(RESULT_MISS) ] = 0x12a, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x81d0, [ C(RESULT_MISS) ] = 0xe12, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x82d0, [ C(RESULT_MISS) ] = 0xe13, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = 0xe11, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x4c4, [ C(RESULT_MISS) ] = 0x4c5, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x12a, [ C(RESULT_MISS) ] = 0x12a, }, }, }; static __initconst const u64 spr_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x10001, [ C(RESULT_MISS) ] = 0x3fbfc00001, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x3f3ffc0002, [ C(RESULT_MISS) ] = 0x3f3fc00002, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x10c000001, [ C(RESULT_MISS) ] = 0x3fb3000001, }, }, }; /* * Notes on the events: * - data reads do not include code reads (comparable to earlier tables) * - data counts include speculative execution (except L1 write, dtlb, bpu) * - remote node access includes remote memory, remote cache, remote mmio. * - prefetches are not included in the counts. * - icache miss does not include decoded icache */ #define SKL_DEMAND_DATA_RD BIT_ULL(0) #define SKL_DEMAND_RFO BIT_ULL(1) #define SKL_ANY_RESPONSE BIT_ULL(16) #define SKL_SUPPLIER_NONE BIT_ULL(17) #define SKL_L3_MISS_LOCAL_DRAM BIT_ULL(26) #define SKL_L3_MISS_REMOTE_HOP0_DRAM BIT_ULL(27) #define SKL_L3_MISS_REMOTE_HOP1_DRAM BIT_ULL(28) #define SKL_L3_MISS_REMOTE_HOP2P_DRAM BIT_ULL(29) #define SKL_L3_MISS (SKL_L3_MISS_LOCAL_DRAM| \ SKL_L3_MISS_REMOTE_HOP0_DRAM| \ SKL_L3_MISS_REMOTE_HOP1_DRAM| \ SKL_L3_MISS_REMOTE_HOP2P_DRAM) #define SKL_SPL_HIT BIT_ULL(30) #define SKL_SNOOP_NONE BIT_ULL(31) #define SKL_SNOOP_NOT_NEEDED BIT_ULL(32) #define SKL_SNOOP_MISS BIT_ULL(33) #define SKL_SNOOP_HIT_NO_FWD BIT_ULL(34) #define SKL_SNOOP_HIT_WITH_FWD BIT_ULL(35) #define SKL_SNOOP_HITM BIT_ULL(36) #define SKL_SNOOP_NON_DRAM BIT_ULL(37) #define SKL_ANY_SNOOP (SKL_SPL_HIT|SKL_SNOOP_NONE| \ SKL_SNOOP_NOT_NEEDED|SKL_SNOOP_MISS| \ SKL_SNOOP_HIT_NO_FWD|SKL_SNOOP_HIT_WITH_FWD| \ SKL_SNOOP_HITM|SKL_SNOOP_NON_DRAM) #define SKL_DEMAND_READ SKL_DEMAND_DATA_RD #define SKL_SNOOP_DRAM (SKL_SNOOP_NONE| \ SKL_SNOOP_NOT_NEEDED|SKL_SNOOP_MISS| \ SKL_SNOOP_HIT_NO_FWD|SKL_SNOOP_HIT_WITH_FWD| \ SKL_SNOOP_HITM|SKL_SPL_HIT) #define SKL_DEMAND_WRITE SKL_DEMAND_RFO #define SKL_LLC_ACCESS SKL_ANY_RESPONSE #define SKL_L3_MISS_REMOTE (SKL_L3_MISS_REMOTE_HOP0_DRAM| \ SKL_L3_MISS_REMOTE_HOP1_DRAM| \ SKL_L3_MISS_REMOTE_HOP2P_DRAM) static __initconst const u64 skl_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_INST_RETIRED.ALL_LOADS */ [ C(RESULT_MISS) ] = 0x151, /* L1D.REPLACEMENT */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_INST_RETIRED.ALL_STORES */ [ C(RESULT_MISS) ] = 0x0, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x283, /* ICACHE_64B.MISS */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_INST_RETIRED.ALL_LOADS */ [ C(RESULT_MISS) ] = 0xe08, /* DTLB_LOAD_MISSES.WALK_COMPLETED */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_INST_RETIRED.ALL_STORES */ [ C(RESULT_MISS) ] = 0xe49, /* DTLB_STORE_MISSES.WALK_COMPLETED */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x2085, /* ITLB_MISSES.STLB_HIT */ [ C(RESULT_MISS) ] = 0xe85, /* ITLB_MISSES.WALK_COMPLETED */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0xc4, /* BR_INST_RETIRED.ALL_BRANCHES */ [ C(RESULT_MISS) ] = 0xc5, /* BR_MISP_RETIRED.ALL_BRANCHES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, }; static __initconst const u64 skl_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = SKL_DEMAND_READ| SKL_LLC_ACCESS|SKL_ANY_SNOOP, [ C(RESULT_MISS) ] = SKL_DEMAND_READ| SKL_L3_MISS|SKL_ANY_SNOOP| SKL_SUPPLIER_NONE, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = SKL_DEMAND_WRITE| SKL_LLC_ACCESS|SKL_ANY_SNOOP, [ C(RESULT_MISS) ] = SKL_DEMAND_WRITE| SKL_L3_MISS|SKL_ANY_SNOOP| SKL_SUPPLIER_NONE, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = SKL_DEMAND_READ| SKL_L3_MISS_LOCAL_DRAM|SKL_SNOOP_DRAM, [ C(RESULT_MISS) ] = SKL_DEMAND_READ| SKL_L3_MISS_REMOTE|SKL_SNOOP_DRAM, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = SKL_DEMAND_WRITE| SKL_L3_MISS_LOCAL_DRAM|SKL_SNOOP_DRAM, [ C(RESULT_MISS) ] = SKL_DEMAND_WRITE| SKL_L3_MISS_REMOTE|SKL_SNOOP_DRAM, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, }; #define SNB_DMND_DATA_RD (1ULL << 0) #define SNB_DMND_RFO (1ULL << 1) #define SNB_DMND_IFETCH (1ULL << 2) #define SNB_DMND_WB (1ULL << 3) #define SNB_PF_DATA_RD (1ULL << 4) #define SNB_PF_RFO (1ULL << 5) #define SNB_PF_IFETCH (1ULL << 6) #define SNB_LLC_DATA_RD (1ULL << 7) #define SNB_LLC_RFO (1ULL << 8) #define SNB_LLC_IFETCH (1ULL << 9) #define SNB_BUS_LOCKS (1ULL << 10) #define SNB_STRM_ST (1ULL << 11) #define SNB_OTHER (1ULL << 15) #define SNB_RESP_ANY (1ULL << 16) #define SNB_NO_SUPP (1ULL << 17) #define SNB_LLC_HITM (1ULL << 18) #define SNB_LLC_HITE (1ULL << 19) #define SNB_LLC_HITS (1ULL << 20) #define SNB_LLC_HITF (1ULL << 21) #define SNB_LOCAL (1ULL << 22) #define SNB_REMOTE (0xffULL << 23) #define SNB_SNP_NONE (1ULL << 31) #define SNB_SNP_NOT_NEEDED (1ULL << 32) #define SNB_SNP_MISS (1ULL << 33) #define SNB_NO_FWD (1ULL << 34) #define SNB_SNP_FWD (1ULL << 35) #define SNB_HITM (1ULL << 36) #define SNB_NON_DRAM (1ULL << 37) #define SNB_DMND_READ (SNB_DMND_DATA_RD|SNB_LLC_DATA_RD) #define SNB_DMND_WRITE (SNB_DMND_RFO|SNB_LLC_RFO) #define SNB_DMND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_RFO) #define SNB_SNP_ANY (SNB_SNP_NONE|SNB_SNP_NOT_NEEDED| \ SNB_SNP_MISS|SNB_NO_FWD|SNB_SNP_FWD| \ SNB_HITM) #define SNB_DRAM_ANY (SNB_LOCAL|SNB_REMOTE|SNB_SNP_ANY) #define SNB_DRAM_REMOTE (SNB_REMOTE|SNB_SNP_ANY) #define SNB_L3_ACCESS SNB_RESP_ANY #define SNB_L3_MISS (SNB_DRAM_ANY|SNB_NON_DRAM) static __initconst const u64 snb_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = SNB_DMND_READ|SNB_L3_ACCESS, [ C(RESULT_MISS) ] = SNB_DMND_READ|SNB_L3_MISS, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = SNB_DMND_WRITE|SNB_L3_ACCESS, [ C(RESULT_MISS) ] = SNB_DMND_WRITE|SNB_L3_MISS, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = SNB_DMND_PREFETCH|SNB_L3_ACCESS, [ C(RESULT_MISS) ] = SNB_DMND_PREFETCH|SNB_L3_MISS, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = SNB_DMND_READ|SNB_DRAM_ANY, [ C(RESULT_MISS) ] = SNB_DMND_READ|SNB_DRAM_REMOTE, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = SNB_DMND_WRITE|SNB_DRAM_ANY, [ C(RESULT_MISS) ] = SNB_DMND_WRITE|SNB_DRAM_REMOTE, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = SNB_DMND_PREFETCH|SNB_DRAM_ANY, [ C(RESULT_MISS) ] = SNB_DMND_PREFETCH|SNB_DRAM_REMOTE, }, }, }; static __initconst const u64 snb_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0xf1d0, /* MEM_UOP_RETIRED.LOADS */ [ C(RESULT_MISS) ] = 0x0151, /* L1D.REPLACEMENT */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0xf2d0, /* MEM_UOP_RETIRED.STORES */ [ C(RESULT_MISS) ] = 0x0851, /* L1D.ALL_M_REPLACEMENT */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x024e, /* HW_PRE_REQ.DL1_MISS */ }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0280, /* ICACHE.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_WRITE) ] = { /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOP_RETIRED.ALL_LOADS */ [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.CAUSES_A_WALK */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_UOP_RETIRED.ALL_STORES */ [ C(RESULT_MISS) ] = 0x0149, /* DTLB_STORE_MISSES.MISS_CAUSES_A_WALK */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x1085, /* ITLB_MISSES.STLB_HIT */ [ C(RESULT_MISS) ] = 0x0185, /* ITLB_MISSES.CAUSES_A_WALK */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ [ C(RESULT_MISS) ] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, }, }; /* * Notes on the events: * - data reads do not include code reads (comparable to earlier tables) * - data counts include speculative execution (except L1 write, dtlb, bpu) * - remote node access includes remote memory, remote cache, remote mmio. * - prefetches are not included in the counts because they are not * reliably counted. */ #define HSW_DEMAND_DATA_RD BIT_ULL(0) #define HSW_DEMAND_RFO BIT_ULL(1) #define HSW_ANY_RESPONSE BIT_ULL(16) #define HSW_SUPPLIER_NONE BIT_ULL(17) #define HSW_L3_MISS_LOCAL_DRAM BIT_ULL(22) #define HSW_L3_MISS_REMOTE_HOP0 BIT_ULL(27) #define HSW_L3_MISS_REMOTE_HOP1 BIT_ULL(28) #define HSW_L3_MISS_REMOTE_HOP2P BIT_ULL(29) #define HSW_L3_MISS (HSW_L3_MISS_LOCAL_DRAM| \ HSW_L3_MISS_REMOTE_HOP0|HSW_L3_MISS_REMOTE_HOP1| \ HSW_L3_MISS_REMOTE_HOP2P) #define HSW_SNOOP_NONE BIT_ULL(31) #define HSW_SNOOP_NOT_NEEDED BIT_ULL(32) #define HSW_SNOOP_MISS BIT_ULL(33) #define HSW_SNOOP_HIT_NO_FWD BIT_ULL(34) #define HSW_SNOOP_HIT_WITH_FWD BIT_ULL(35) #define HSW_SNOOP_HITM BIT_ULL(36) #define HSW_SNOOP_NON_DRAM BIT_ULL(37) #define HSW_ANY_SNOOP (HSW_SNOOP_NONE| \ HSW_SNOOP_NOT_NEEDED|HSW_SNOOP_MISS| \ HSW_SNOOP_HIT_NO_FWD|HSW_SNOOP_HIT_WITH_FWD| \ HSW_SNOOP_HITM|HSW_SNOOP_NON_DRAM) #define HSW_SNOOP_DRAM (HSW_ANY_SNOOP & ~HSW_SNOOP_NON_DRAM) #define HSW_DEMAND_READ HSW_DEMAND_DATA_RD #define HSW_DEMAND_WRITE HSW_DEMAND_RFO #define HSW_L3_MISS_REMOTE (HSW_L3_MISS_REMOTE_HOP0|\ HSW_L3_MISS_REMOTE_HOP1|HSW_L3_MISS_REMOTE_HOP2P) #define HSW_LLC_ACCESS HSW_ANY_RESPONSE #define BDW_L3_MISS_LOCAL BIT(26) #define BDW_L3_MISS (BDW_L3_MISS_LOCAL| \ HSW_L3_MISS_REMOTE_HOP0|HSW_L3_MISS_REMOTE_HOP1| \ HSW_L3_MISS_REMOTE_HOP2P) static __initconst const u64 hsw_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */ [ C(RESULT_MISS) ] = 0x151, /* L1D.REPLACEMENT */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */ [ C(RESULT_MISS) ] = 0x0, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x280, /* ICACHE.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */ [ C(RESULT_MISS) ] = 0x108, /* DTLB_LOAD_MISSES.MISS_CAUSES_A_WALK */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */ [ C(RESULT_MISS) ] = 0x149, /* DTLB_STORE_MISSES.MISS_CAUSES_A_WALK */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x6085, /* ITLB_MISSES.STLB_HIT */ [ C(RESULT_MISS) ] = 0x185, /* ITLB_MISSES.MISS_CAUSES_A_WALK */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0xc4, /* BR_INST_RETIRED.ALL_BRANCHES */ [ C(RESULT_MISS) ] = 0xc5, /* BR_MISP_RETIRED.ALL_BRANCHES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x1b7, /* OFFCORE_RESPONSE */ [ C(RESULT_MISS) ] = 0x1b7, /* OFFCORE_RESPONSE */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, }; static __initconst const u64 hsw_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = HSW_DEMAND_READ| HSW_LLC_ACCESS, [ C(RESULT_MISS) ] = HSW_DEMAND_READ| HSW_L3_MISS|HSW_ANY_SNOOP, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = HSW_DEMAND_WRITE| HSW_LLC_ACCESS, [ C(RESULT_MISS) ] = HSW_DEMAND_WRITE| HSW_L3_MISS|HSW_ANY_SNOOP, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = HSW_DEMAND_READ| HSW_L3_MISS_LOCAL_DRAM| HSW_SNOOP_DRAM, [ C(RESULT_MISS) ] = HSW_DEMAND_READ| HSW_L3_MISS_REMOTE| HSW_SNOOP_DRAM, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = HSW_DEMAND_WRITE| HSW_L3_MISS_LOCAL_DRAM| HSW_SNOOP_DRAM, [ C(RESULT_MISS) ] = HSW_DEMAND_WRITE| HSW_L3_MISS_REMOTE| HSW_SNOOP_DRAM, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, }; static __initconst const u64 westmere_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x010b, /* MEM_INST_RETIRED.LOADS */ [ C(RESULT_MISS) ] = 0x0151, /* L1D.REPL */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES */ [ C(RESULT_MISS) ] = 0x0251, /* L1D.M_REPL */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x014e, /* L1D_PREFETCH.REQUESTS */ [ C(RESULT_MISS) ] = 0x024e, /* L1D_PREFETCH.MISS */ }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0380, /* L1I.READS */ [ C(RESULT_MISS) ] = 0x0280, /* L1I.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, /* * Use RFO, not WRITEBACK, because a write miss would typically occur * on RFO. */ [ C(OP_WRITE) ] = { /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x010b, /* MEM_INST_RETIRED.LOADS */ [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.ANY */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES */ [ C(RESULT_MISS) ] = 0x010c, /* MEM_STORE_RETIRED.DTLB_MISS */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x01c0, /* INST_RETIRED.ANY_P */ [ C(RESULT_MISS) ] = 0x0185, /* ITLB_MISSES.ANY */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ [ C(RESULT_MISS) ] = 0x03e8, /* BPU_CLEARS.ANY */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, }, }; /* * Nehalem/Westmere MSR_OFFCORE_RESPONSE bits; * See IA32 SDM Vol 3B 30.6.1.3 */ #define NHM_DMND_DATA_RD (1 << 0) #define NHM_DMND_RFO (1 << 1) #define NHM_DMND_IFETCH (1 << 2) #define NHM_DMND_WB (1 << 3) #define NHM_PF_DATA_RD (1 << 4) #define NHM_PF_DATA_RFO (1 << 5) #define NHM_PF_IFETCH (1 << 6) #define NHM_OFFCORE_OTHER (1 << 7) #define NHM_UNCORE_HIT (1 << 8) #define NHM_OTHER_CORE_HIT_SNP (1 << 9) #define NHM_OTHER_CORE_HITM (1 << 10) /* reserved */ #define NHM_REMOTE_CACHE_FWD (1 << 12) #define NHM_REMOTE_DRAM (1 << 13) #define NHM_LOCAL_DRAM (1 << 14) #define NHM_NON_DRAM (1 << 15) #define NHM_LOCAL (NHM_LOCAL_DRAM|NHM_REMOTE_CACHE_FWD) #define NHM_REMOTE (NHM_REMOTE_DRAM) #define NHM_DMND_READ (NHM_DMND_DATA_RD) #define NHM_DMND_WRITE (NHM_DMND_RFO|NHM_DMND_WB) #define NHM_DMND_PREFETCH (NHM_PF_DATA_RD|NHM_PF_DATA_RFO) #define NHM_L3_HIT (NHM_UNCORE_HIT|NHM_OTHER_CORE_HIT_SNP|NHM_OTHER_CORE_HITM) #define NHM_L3_MISS (NHM_NON_DRAM|NHM_LOCAL_DRAM|NHM_REMOTE_DRAM|NHM_REMOTE_CACHE_FWD) #define NHM_L3_ACCESS (NHM_L3_HIT|NHM_L3_MISS) static __initconst const u64 nehalem_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = NHM_DMND_READ|NHM_L3_ACCESS, [ C(RESULT_MISS) ] = NHM_DMND_READ|NHM_L3_MISS, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = NHM_DMND_WRITE|NHM_L3_ACCESS, [ C(RESULT_MISS) ] = NHM_DMND_WRITE|NHM_L3_MISS, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = NHM_DMND_PREFETCH|NHM_L3_ACCESS, [ C(RESULT_MISS) ] = NHM_DMND_PREFETCH|NHM_L3_MISS, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = NHM_DMND_READ|NHM_LOCAL|NHM_REMOTE, [ C(RESULT_MISS) ] = NHM_DMND_READ|NHM_REMOTE, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = NHM_DMND_WRITE|NHM_LOCAL|NHM_REMOTE, [ C(RESULT_MISS) ] = NHM_DMND_WRITE|NHM_REMOTE, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = NHM_DMND_PREFETCH|NHM_LOCAL|NHM_REMOTE, [ C(RESULT_MISS) ] = NHM_DMND_PREFETCH|NHM_REMOTE, }, }, }; static __initconst const u64 nehalem_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x010b, /* MEM_INST_RETIRED.LOADS */ [ C(RESULT_MISS) ] = 0x0151, /* L1D.REPL */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x020b, /* MEM_INST_RETURED.STORES */ [ C(RESULT_MISS) ] = 0x0251, /* L1D.M_REPL */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x014e, /* L1D_PREFETCH.REQUESTS */ [ C(RESULT_MISS) ] = 0x024e, /* L1D_PREFETCH.MISS */ }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0380, /* L1I.READS */ [ C(RESULT_MISS) ] = 0x0280, /* L1I.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.ANY_DATA.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, /* * Use RFO, not WRITEBACK, because a write miss would typically occur * on RFO. */ [ C(OP_WRITE) ] = { /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI (alias) */ [ C(RESULT_MISS) ] = 0x0108, /* DTLB_LOAD_MISSES.ANY */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI (alias) */ [ C(RESULT_MISS) ] = 0x010c, /* MEM_STORE_RETIRED.DTLB_MISS */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0x0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x01c0, /* INST_RETIRED.ANY_P */ [ C(RESULT_MISS) ] = 0x20c8, /* ITLB_MISS_RETIRED */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ [ C(RESULT_MISS) ] = 0x03e8, /* BPU_CLEARS.ANY */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(NODE) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0x01b7, }, }, }; static __initconst const u64 core2_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI */ [ C(RESULT_MISS) ] = 0x0140, /* L1D_CACHE_LD.I_STATE */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI */ [ C(RESULT_MISS) ] = 0x0141, /* L1D_CACHE_ST.I_STATE */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x104e, /* L1D_PREFETCH.REQUESTS */ [ C(RESULT_MISS) ] = 0, }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0080, /* L1I.READS */ [ C(RESULT_MISS) ] = 0x0081, /* L1I.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x4f29, /* L2_LD.MESI */ [ C(RESULT_MISS) ] = 0x4129, /* L2_LD.ISTATE */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x4f2A, /* L2_ST.MESI */ [ C(RESULT_MISS) ] = 0x412A, /* L2_ST.ISTATE */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0f40, /* L1D_CACHE_LD.MESI (alias) */ [ C(RESULT_MISS) ] = 0x0208, /* DTLB_MISSES.MISS_LD */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x0f41, /* L1D_CACHE_ST.MESI (alias) */ [ C(RESULT_MISS) ] = 0x0808, /* DTLB_MISSES.MISS_ST */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */ [ C(RESULT_MISS) ] = 0x1282, /* ITLBMISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */ [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, }; static __initconst const u64 atom_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x2140, /* L1D_CACHE.LD */ [ C(RESULT_MISS) ] = 0, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x2240, /* L1D_CACHE.ST */ [ C(RESULT_MISS) ] = 0, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0x0, [ C(RESULT_MISS) ] = 0, }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0380, /* L1I.READS */ [ C(RESULT_MISS) ] = 0x0280, /* L1I.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x4f29, /* L2_LD.MESI */ [ C(RESULT_MISS) ] = 0x4129, /* L2_LD.ISTATE */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x4f2A, /* L2_ST.MESI */ [ C(RESULT_MISS) ] = 0x412A, /* L2_ST.ISTATE */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x2140, /* L1D_CACHE_LD.MESI (alias) */ [ C(RESULT_MISS) ] = 0x0508, /* DTLB_MISSES.MISS_LD */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0x2240, /* L1D_CACHE_ST.MESI (alias) */ [ C(RESULT_MISS) ] = 0x0608, /* DTLB_MISSES.MISS_ST */ }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */ [ C(RESULT_MISS) ] = 0x0282, /* ITLB.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */ [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, }; EVENT_ATTR_STR(topdown-total-slots, td_total_slots_slm, "event=0x3c"); EVENT_ATTR_STR(topdown-total-slots.scale, td_total_slots_scale_slm, "2"); /* no_alloc_cycles.not_delivered */ EVENT_ATTR_STR(topdown-fetch-bubbles, td_fetch_bubbles_slm, "event=0xca,umask=0x50"); EVENT_ATTR_STR(topdown-fetch-bubbles.scale, td_fetch_bubbles_scale_slm, "2"); /* uops_retired.all */ EVENT_ATTR_STR(topdown-slots-issued, td_slots_issued_slm, "event=0xc2,umask=0x10"); /* uops_retired.all */ EVENT_ATTR_STR(topdown-slots-retired, td_slots_retired_slm, "event=0xc2,umask=0x10"); static struct attribute *slm_events_attrs[] = { EVENT_PTR(td_total_slots_slm), EVENT_PTR(td_total_slots_scale_slm), EVENT_PTR(td_fetch_bubbles_slm), EVENT_PTR(td_fetch_bubbles_scale_slm), EVENT_PTR(td_slots_issued_slm), EVENT_PTR(td_slots_retired_slm), NULL }; static struct extra_reg intel_slm_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x768005ffffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x368005ffffull, RSP_1), EVENT_EXTRA_END }; #define SLM_DMND_READ SNB_DMND_DATA_RD #define SLM_DMND_WRITE SNB_DMND_RFO #define SLM_DMND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_RFO) #define SLM_SNP_ANY (SNB_SNP_NONE|SNB_SNP_MISS|SNB_NO_FWD|SNB_HITM) #define SLM_LLC_ACCESS SNB_RESP_ANY #define SLM_LLC_MISS (SLM_SNP_ANY|SNB_NON_DRAM) static __initconst const u64 slm_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(LL ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = SLM_DMND_READ|SLM_LLC_ACCESS, [ C(RESULT_MISS) ] = 0, }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = SLM_DMND_WRITE|SLM_LLC_ACCESS, [ C(RESULT_MISS) ] = SLM_DMND_WRITE|SLM_LLC_MISS, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = SLM_DMND_PREFETCH|SLM_LLC_ACCESS, [ C(RESULT_MISS) ] = SLM_DMND_PREFETCH|SLM_LLC_MISS, }, }, }; static __initconst const u64 slm_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [ C(L1D) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0x0104, /* LD_DCU_MISS */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(L1I ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x0380, /* ICACHE.ACCESSES */ [ C(RESULT_MISS) ] = 0x0280, /* ICACGE.MISSES */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(LL ) ] = { [ C(OP_READ) ] = { /* OFFCORE_RESPONSE.ANY_DATA.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, [ C(RESULT_MISS) ] = 0, }, [ C(OP_WRITE) ] = { /* OFFCORE_RESPONSE.ANY_RFO.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.ANY_RFO.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, [ C(OP_PREFETCH) ] = { /* OFFCORE_RESPONSE.PREFETCH.LOCAL_CACHE */ [ C(RESULT_ACCESS) ] = 0x01b7, /* OFFCORE_RESPONSE.PREFETCH.ANY_LLC_MISS */ [ C(RESULT_MISS) ] = 0x01b7, }, }, [ C(DTLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0x0804, /* LD_DTLB_MISS */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = 0, [ C(RESULT_MISS) ] = 0, }, }, [ C(ITLB) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c0, /* INST_RETIRED.ANY_P */ [ C(RESULT_MISS) ] = 0x40205, /* PAGE_WALKS.I_SIDE_WALKS */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, [ C(BPU ) ] = { [ C(OP_READ) ] = { [ C(RESULT_ACCESS) ] = 0x00c4, /* BR_INST_RETIRED.ANY */ [ C(RESULT_MISS) ] = 0x00c5, /* BP_INST_RETIRED.MISPRED */ }, [ C(OP_WRITE) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, [ C(OP_PREFETCH) ] = { [ C(RESULT_ACCESS) ] = -1, [ C(RESULT_MISS) ] = -1, }, }, }; EVENT_ATTR_STR(topdown-total-slots, td_total_slots_glm, "event=0x3c"); EVENT_ATTR_STR(topdown-total-slots.scale, td_total_slots_scale_glm, "3"); /* UOPS_NOT_DELIVERED.ANY */ EVENT_ATTR_STR(topdown-fetch-bubbles, td_fetch_bubbles_glm, "event=0x9c"); /* ISSUE_SLOTS_NOT_CONSUMED.RECOVERY */ EVENT_ATTR_STR(topdown-recovery-bubbles, td_recovery_bubbles_glm, "event=0xca,umask=0x02"); /* UOPS_RETIRED.ANY */ EVENT_ATTR_STR(topdown-slots-retired, td_slots_retired_glm, "event=0xc2"); /* UOPS_ISSUED.ANY */ EVENT_ATTR_STR(topdown-slots-issued, td_slots_issued_glm, "event=0x0e"); static struct attribute *glm_events_attrs[] = { EVENT_PTR(td_total_slots_glm), EVENT_PTR(td_total_slots_scale_glm), EVENT_PTR(td_fetch_bubbles_glm), EVENT_PTR(td_recovery_bubbles_glm), EVENT_PTR(td_slots_issued_glm), EVENT_PTR(td_slots_retired_glm), NULL }; static struct extra_reg intel_glm_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x760005ffbfull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x360005ffbfull, RSP_1), EVENT_EXTRA_END }; #define GLM_DEMAND_DATA_RD BIT_ULL(0) #define GLM_DEMAND_RFO BIT_ULL(1) #define GLM_ANY_RESPONSE BIT_ULL(16) #define GLM_SNP_NONE_OR_MISS BIT_ULL(33) #define GLM_DEMAND_READ GLM_DEMAND_DATA_RD #define GLM_DEMAND_WRITE GLM_DEMAND_RFO #define GLM_DEMAND_PREFETCH (SNB_PF_DATA_RD|SNB_PF_RFO) #define GLM_LLC_ACCESS GLM_ANY_RESPONSE #define GLM_SNP_ANY (GLM_SNP_NONE_OR_MISS|SNB_NO_FWD|SNB_HITM) #define GLM_LLC_MISS (GLM_SNP_ANY|SNB_NON_DRAM) static __initconst const u64 glm_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [C(L1D)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */ [C(RESULT_MISS)] = 0x0, }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */ [C(RESULT_MISS)] = 0x0, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, [C(L1I)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x0380, /* ICACHE.ACCESSES */ [C(RESULT_MISS)] = 0x0280, /* ICACHE.MISSES */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, [C(LL)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */ }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */ }, }, [C(DTLB)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */ [C(RESULT_MISS)] = 0x0, }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */ [C(RESULT_MISS)] = 0x0, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, [C(ITLB)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x00c0, /* INST_RETIRED.ANY_P */ [C(RESULT_MISS)] = 0x0481, /* ITLB.MISS */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, }, [C(BPU)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ [C(RESULT_MISS)] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, }, }; static __initconst const u64 glm_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [C(LL)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = GLM_DEMAND_READ| GLM_LLC_ACCESS, [C(RESULT_MISS)] = GLM_DEMAND_READ| GLM_LLC_MISS, }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = GLM_DEMAND_WRITE| GLM_LLC_ACCESS, [C(RESULT_MISS)] = GLM_DEMAND_WRITE| GLM_LLC_MISS, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = GLM_DEMAND_PREFETCH| GLM_LLC_ACCESS, [C(RESULT_MISS)] = GLM_DEMAND_PREFETCH| GLM_LLC_MISS, }, }, }; static __initconst const u64 glp_hw_cache_event_ids [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [C(L1D)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */ [C(RESULT_MISS)] = 0x0, }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */ [C(RESULT_MISS)] = 0x0, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, [C(L1I)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x0380, /* ICACHE.ACCESSES */ [C(RESULT_MISS)] = 0x0280, /* ICACHE.MISSES */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, [C(LL)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = 0x1b7, /* OFFCORE_RESPONSE */ [C(RESULT_MISS)] = 0x1b7, /* OFFCORE_RESPONSE */ }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, [C(DTLB)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x81d0, /* MEM_UOPS_RETIRED.ALL_LOADS */ [C(RESULT_MISS)] = 0xe08, /* DTLB_LOAD_MISSES.WALK_COMPLETED */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = 0x82d0, /* MEM_UOPS_RETIRED.ALL_STORES */ [C(RESULT_MISS)] = 0xe49, /* DTLB_STORE_MISSES.WALK_COMPLETED */ }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, [C(ITLB)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x00c0, /* INST_RETIRED.ANY_P */ [C(RESULT_MISS)] = 0x0481, /* ITLB.MISS */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, }, [C(BPU)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = 0x00c4, /* BR_INST_RETIRED.ALL_BRANCHES */ [C(RESULT_MISS)] = 0x00c5, /* BR_MISP_RETIRED.ALL_BRANCHES */ }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = -1, [C(RESULT_MISS)] = -1, }, }, }; static __initconst const u64 glp_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [C(LL)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = GLM_DEMAND_READ| GLM_LLC_ACCESS, [C(RESULT_MISS)] = GLM_DEMAND_READ| GLM_LLC_MISS, }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = GLM_DEMAND_WRITE| GLM_LLC_ACCESS, [C(RESULT_MISS)] = GLM_DEMAND_WRITE| GLM_LLC_MISS, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, }; #define TNT_LOCAL_DRAM BIT_ULL(26) #define TNT_DEMAND_READ GLM_DEMAND_DATA_RD #define TNT_DEMAND_WRITE GLM_DEMAND_RFO #define TNT_LLC_ACCESS GLM_ANY_RESPONSE #define TNT_SNP_ANY (SNB_SNP_NOT_NEEDED|SNB_SNP_MISS| \ SNB_NO_FWD|SNB_SNP_FWD|SNB_HITM) #define TNT_LLC_MISS (TNT_SNP_ANY|SNB_NON_DRAM|TNT_LOCAL_DRAM) static __initconst const u64 tnt_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [C(LL)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = TNT_DEMAND_READ| TNT_LLC_ACCESS, [C(RESULT_MISS)] = TNT_DEMAND_READ| TNT_LLC_MISS, }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = TNT_DEMAND_WRITE| TNT_LLC_ACCESS, [C(RESULT_MISS)] = TNT_DEMAND_WRITE| TNT_LLC_MISS, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = 0x0, [C(RESULT_MISS)] = 0x0, }, }, }; EVENT_ATTR_STR(topdown-fe-bound, td_fe_bound_tnt, "event=0x71,umask=0x0"); EVENT_ATTR_STR(topdown-retiring, td_retiring_tnt, "event=0xc2,umask=0x0"); EVENT_ATTR_STR(topdown-bad-spec, td_bad_spec_tnt, "event=0x73,umask=0x6"); EVENT_ATTR_STR(topdown-be-bound, td_be_bound_tnt, "event=0x74,umask=0x0"); static struct attribute *tnt_events_attrs[] = { EVENT_PTR(td_fe_bound_tnt), EVENT_PTR(td_retiring_tnt), EVENT_PTR(td_bad_spec_tnt), EVENT_PTR(td_be_bound_tnt), NULL, }; static struct extra_reg intel_tnt_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x800ff0ffffff9fffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0xff0ffffff9fffull, RSP_1), EVENT_EXTRA_END }; EVENT_ATTR_STR(mem-loads, mem_ld_grt, "event=0xd0,umask=0x5,ldlat=3"); EVENT_ATTR_STR(mem-stores, mem_st_grt, "event=0xd0,umask=0x6"); static struct attribute *grt_mem_attrs[] = { EVENT_PTR(mem_ld_grt), EVENT_PTR(mem_st_grt), NULL }; static struct extra_reg intel_grt_extra_regs[] __read_mostly = { /* must define OFFCORE_RSP_X first, see intel_fixup_er() */ INTEL_UEVENT_EXTRA_REG(0x01b7, MSR_OFFCORE_RSP_0, 0x3fffffffffull, RSP_0), INTEL_UEVENT_EXTRA_REG(0x02b7, MSR_OFFCORE_RSP_1, 0x3fffffffffull, RSP_1), INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(0x5d0), EVENT_EXTRA_END }; #define KNL_OT_L2_HITE BIT_ULL(19) /* Other Tile L2 Hit */ #define KNL_OT_L2_HITF BIT_ULL(20) /* Other Tile L2 Hit */ #define KNL_MCDRAM_LOCAL BIT_ULL(21) #define KNL_MCDRAM_FAR BIT_ULL(22) #define KNL_DDR_LOCAL BIT_ULL(23) #define KNL_DDR_FAR BIT_ULL(24) #define KNL_DRAM_ANY (KNL_MCDRAM_LOCAL | KNL_MCDRAM_FAR | \ KNL_DDR_LOCAL | KNL_DDR_FAR) #define KNL_L2_READ SLM_DMND_READ #define KNL_L2_WRITE SLM_DMND_WRITE #define KNL_L2_PREFETCH SLM_DMND_PREFETCH #define KNL_L2_ACCESS SLM_LLC_ACCESS #define KNL_L2_MISS (KNL_OT_L2_HITE | KNL_OT_L2_HITF | \ KNL_DRAM_ANY | SNB_SNP_ANY | \ SNB_NON_DRAM) static __initconst const u64 knl_hw_cache_extra_regs [PERF_COUNT_HW_CACHE_MAX] [PERF_COUNT_HW_CACHE_OP_MAX] [PERF_COUNT_HW_CACHE_RESULT_MAX] = { [C(LL)] = { [C(OP_READ)] = { [C(RESULT_ACCESS)] = KNL_L2_READ | KNL_L2_ACCESS, [C(RESULT_MISS)] = 0, }, [C(OP_WRITE)] = { [C(RESULT_ACCESS)] = KNL_L2_WRITE | KNL_L2_ACCESS, [C(RESULT_MISS)] = KNL_L2_WRITE | KNL_L2_MISS, }, [C(OP_PREFETCH)] = { [C(RESULT_ACCESS)] = KNL_L2_PREFETCH | KNL_L2_ACCESS, [C(RESULT_MISS)] = KNL_L2_PREFETCH | KNL_L2_MISS, }, }, }; /* * Used from PMIs where the LBRs are already disabled. * * This function could be called consecutively. It is required to remain in * disabled state if called consecutively. * * During consecutive calls, the same disable value will be written to related * registers, so the PMU state remains unchanged. * * intel_bts events don't coexist with intel PMU's BTS events because of * x86_add_exclusive(x86_lbr_exclusive_lbr); there's no need to keep them * disabled around intel PMU's event batching etc, only inside the PMI handler. * * Avoid PEBS_ENABLE MSR access in PMIs. * The GLOBAL_CTRL has been disabled. All the counters do not count anymore. * It doesn't matter if the PEBS is enabled or not. * Usually, the PEBS status are not changed in PMIs. It's unnecessary to * access PEBS_ENABLE MSR in disable_all()/enable_all(). * However, there are some cases which may change PEBS status, e.g. PMI * throttle. The PEBS_ENABLE should be updated where the status changes. */ static __always_inline void __intel_pmu_disable_all(bool bts) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0); if (bts && test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask)) intel_pmu_disable_bts(); } static __always_inline void intel_pmu_disable_all(void) { __intel_pmu_disable_all(true); intel_pmu_pebs_disable_all(); intel_pmu_lbr_disable_all(); } static void __intel_pmu_enable_all(int added, bool pmi) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); u64 intel_ctrl = hybrid(cpuc->pmu, intel_ctrl); intel_pmu_lbr_enable_all(pmi); if (cpuc->fixed_ctrl_val != cpuc->active_fixed_ctrl_val) { wrmsrl(MSR_ARCH_PERFMON_FIXED_CTR_CTRL, cpuc->fixed_ctrl_val); cpuc->active_fixed_ctrl_val = cpuc->fixed_ctrl_val; } wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, intel_ctrl & ~cpuc->intel_ctrl_guest_mask); if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask)) { struct perf_event *event = cpuc->events[INTEL_PMC_IDX_FIXED_BTS]; if (WARN_ON_ONCE(!event)) return; intel_pmu_enable_bts(event->hw.config); } } static void intel_pmu_enable_all(int added) { intel_pmu_pebs_enable_all(); __intel_pmu_enable_all(added, false); } static noinline int __intel_pmu_snapshot_branch_stack(struct perf_branch_entry *entries, unsigned int cnt, unsigned long flags) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); intel_pmu_lbr_read(); cnt = min_t(unsigned int, cnt, x86_pmu.lbr_nr); memcpy(entries, cpuc->lbr_entries, sizeof(struct perf_branch_entry) * cnt); intel_pmu_enable_all(0); local_irq_restore(flags); return cnt; } static int intel_pmu_snapshot_branch_stack(struct perf_branch_entry *entries, unsigned int cnt) { unsigned long flags; /* must not have branches... */ local_irq_save(flags); __intel_pmu_disable_all(false); /* we don't care about BTS */ __intel_pmu_lbr_disable(); /* ... until here */ return __intel_pmu_snapshot_branch_stack(entries, cnt, flags); } static int intel_pmu_snapshot_arch_branch_stack(struct perf_branch_entry *entries, unsigned int cnt) { unsigned long flags; /* must not have branches... */ local_irq_save(flags); __intel_pmu_disable_all(false); /* we don't care about BTS */ __intel_pmu_arch_lbr_disable(); /* ... until here */ return __intel_pmu_snapshot_branch_stack(entries, cnt, flags); } /* * Workaround for: * Intel Errata AAK100 (model 26) * Intel Errata AAP53 (model 30) * Intel Errata BD53 (model 44) * * The official story: * These chips need to be 'reset' when adding counters by programming the * magic three (non-counting) events 0x4300B5, 0x4300D2, and 0x4300B1 either * in sequence on the same PMC or on different PMCs. * * In practice it appears some of these events do in fact count, and * we need to program all 4 events. */ static void intel_pmu_nhm_workaround(void) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); static const unsigned long nhm_magic[4] = { 0x4300B5, 0x4300D2, 0x4300B1, 0x4300B1 }; struct perf_event *event; int i; /* * The Errata requires below steps: * 1) Clear MSR_IA32_PEBS_ENABLE and MSR_CORE_PERF_GLOBAL_CTRL; * 2) Configure 4 PERFEVTSELx with the magic events and clear * the corresponding PMCx; * 3) set bit0~bit3 of MSR_CORE_PERF_GLOBAL_CTRL; * 4) Clear MSR_CORE_PERF_GLOBAL_CTRL; * 5) Clear 4 pairs of ERFEVTSELx and PMCx; */ /* * The real steps we choose are a little different from above. * A) To reduce MSR operations, we don't run step 1) as they * are already cleared before this function is called; * B) Call x86_perf_event_update to save PMCx before configuring * PERFEVTSELx with magic number; * C) With step 5), we do clear only when the PERFEVTSELx is * not used currently. * D) Call x86_perf_event_set_period to restore PMCx; */ /* We always operate 4 pairs of PERF Counters */ for (i = 0; i < 4; i++) { event = cpuc->events[i]; if (event) static_call(x86_pmu_update)(event); } for (i = 0; i < 4; i++) { wrmsrl(MSR_ARCH_PERFMON_EVENTSEL0 + i, nhm_magic[i]); wrmsrl(MSR_ARCH_PERFMON_PERFCTR0 + i, 0x0); } wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0xf); wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0x0); for (i = 0; i < 4; i++) { event = cpuc->events[i]; if (event) { static_call(x86_pmu_set_period)(event); __x86_pmu_enable_event(&event->hw, ARCH_PERFMON_EVENTSEL_ENABLE); } else wrmsrl(MSR_ARCH_PERFMON_EVENTSEL0 + i, 0x0); } } static void intel_pmu_nhm_enable_all(int added) { if (added) intel_pmu_nhm_workaround(); intel_pmu_enable_all(added); } static void intel_set_tfa(struct cpu_hw_events *cpuc, bool on) { u64 val = on ? MSR_TFA_RTM_FORCE_ABORT : 0; if (cpuc->tfa_shadow != val) { cpuc->tfa_shadow = val; wrmsrl(MSR_TSX_FORCE_ABORT, val); } } static void intel_tfa_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int cntr) { /* * We're going to use PMC3, make sure TFA is set before we touch it. */ if (cntr == 3) intel_set_tfa(cpuc, true); } static void intel_tfa_pmu_enable_all(int added) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); /* * If we find PMC3 is no longer used when we enable the PMU, we can * clear TFA. */ if (!test_bit(3, cpuc->active_mask)) intel_set_tfa(cpuc, false); intel_pmu_enable_all(added); } static inline u64 intel_pmu_get_status(void) { u64 status; rdmsrl(MSR_CORE_PERF_GLOBAL_STATUS, status); return status; } static inline void intel_pmu_ack_status(u64 ack) { wrmsrl(MSR_CORE_PERF_GLOBAL_OVF_CTRL, ack); } static inline bool event_is_checkpointed(struct perf_event *event) { return unlikely(event->hw.config & HSW_IN_TX_CHECKPOINTED) != 0; } static inline void intel_set_masks(struct perf_event *event, int idx) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); if (event->attr.exclude_host) __set_bit(idx, (unsigned long *)&cpuc->intel_ctrl_guest_mask); if (event->attr.exclude_guest) __set_bit(idx, (unsigned long *)&cpuc->intel_ctrl_host_mask); if (event_is_checkpointed(event)) __set_bit(idx, (unsigned long *)&cpuc->intel_cp_status); } static inline void intel_clear_masks(struct perf_event *event, int idx) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); __clear_bit(idx, (unsigned long *)&cpuc->intel_ctrl_guest_mask); __clear_bit(idx, (unsigned long *)&cpuc->intel_ctrl_host_mask); __clear_bit(idx, (unsigned long *)&cpuc->intel_cp_status); } static void intel_pmu_disable_fixed(struct perf_event *event) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct hw_perf_event *hwc = &event->hw; int idx = hwc->idx; u64 mask; if (is_topdown_idx(idx)) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); /* * When there are other active TopDown events, * don't disable the fixed counter 3. */ if (*(u64 *)cpuc->active_mask & INTEL_PMC_OTHER_TOPDOWN_BITS(idx)) return; idx = INTEL_PMC_IDX_FIXED_SLOTS; } intel_clear_masks(event, idx); mask = 0xfULL << ((idx - INTEL_PMC_IDX_FIXED) * 4); cpuc->fixed_ctrl_val &= ~mask; } static void intel_pmu_disable_event(struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; int idx = hwc->idx; switch (idx) { case 0 ... INTEL_PMC_IDX_FIXED - 1: intel_clear_masks(event, idx); x86_pmu_disable_event(event); break; case INTEL_PMC_IDX_FIXED ... INTEL_PMC_IDX_FIXED_BTS - 1: case INTEL_PMC_IDX_METRIC_BASE ... INTEL_PMC_IDX_METRIC_END: intel_pmu_disable_fixed(event); break; case INTEL_PMC_IDX_FIXED_BTS: intel_pmu_disable_bts(); intel_pmu_drain_bts_buffer(); return; case INTEL_PMC_IDX_FIXED_VLBR: intel_clear_masks(event, idx); break; default: intel_clear_masks(event, idx); pr_warn("Failed to disable the event with invalid index %d\n", idx); return; } /* * Needs to be called after x86_pmu_disable_event, * so we don't trigger the event without PEBS bit set. */ if (unlikely(event->attr.precise_ip)) intel_pmu_pebs_disable(event); } static void intel_pmu_assign_event(struct perf_event *event, int idx) { if (is_pebs_pt(event)) perf_report_aux_output_id(event, idx); } static void intel_pmu_del_event(struct perf_event *event) { if (needs_branch_stack(event)) intel_pmu_lbr_del(event); if (event->attr.precise_ip) intel_pmu_pebs_del(event); } static int icl_set_topdown_event_period(struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; s64 left = local64_read(&hwc->period_left); /* * The values in PERF_METRICS MSR are derived from fixed counter 3. * Software should start both registers, PERF_METRICS and fixed * counter 3, from zero. * Clear PERF_METRICS and Fixed counter 3 in initialization. * After that, both MSRs will be cleared for each read. * Don't need to clear them again. */ if (left == x86_pmu.max_period) { wrmsrl(MSR_CORE_PERF_FIXED_CTR3, 0); wrmsrl(MSR_PERF_METRICS, 0); hwc->saved_slots = 0; hwc->saved_metric = 0; } if ((hwc->saved_slots) && is_slots_event(event)) { wrmsrl(MSR_CORE_PERF_FIXED_CTR3, hwc->saved_slots); wrmsrl(MSR_PERF_METRICS, hwc->saved_metric); } perf_event_update_userpage(event); return 0; } static int adl_set_topdown_event_period(struct perf_event *event) { struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu); if (pmu->cpu_type != hybrid_big) return 0; return icl_set_topdown_event_period(event); } DEFINE_STATIC_CALL(intel_pmu_set_topdown_event_period, x86_perf_event_set_period); static inline u64 icl_get_metrics_event_value(u64 metric, u64 slots, int idx) { u32 val; /* * The metric is reported as an 8bit integer fraction * summing up to 0xff. * slots-in-metric = (Metric / 0xff) * slots */ val = (metric >> ((idx - INTEL_PMC_IDX_METRIC_BASE) * 8)) & 0xff; return mul_u64_u32_div(slots, val, 0xff); } static u64 icl_get_topdown_value(struct perf_event *event, u64 slots, u64 metrics) { int idx = event->hw.idx; u64 delta; if (is_metric_idx(idx)) delta = icl_get_metrics_event_value(metrics, slots, idx); else delta = slots; return delta; } static void __icl_update_topdown_event(struct perf_event *event, u64 slots, u64 metrics, u64 last_slots, u64 last_metrics) { u64 delta, last = 0; delta = icl_get_topdown_value(event, slots, metrics); if (last_slots) last = icl_get_topdown_value(event, last_slots, last_metrics); /* * The 8bit integer fraction of metric may be not accurate, * especially when the changes is very small. * For example, if only a few bad_spec happens, the fraction * may be reduced from 1 to 0. If so, the bad_spec event value * will be 0 which is definitely less than the last value. * Avoid update event->count for this case. */ if (delta > last) { delta -= last; local64_add(delta, &event->count); } } static void update_saved_topdown_regs(struct perf_event *event, u64 slots, u64 metrics, int metric_end) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct perf_event *other; int idx; event->hw.saved_slots = slots; event->hw.saved_metric = metrics; for_each_set_bit(idx, cpuc->active_mask, metric_end + 1) { if (!is_topdown_idx(idx)) continue; other = cpuc->events[idx]; other->hw.saved_slots = slots; other->hw.saved_metric = metrics; } } /* * Update all active Topdown events. * * The PERF_METRICS and Fixed counter 3 are read separately. The values may be * modify by a NMI. PMU has to be disabled before calling this function. */ static u64 intel_update_topdown_event(struct perf_event *event, int metric_end) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct perf_event *other; u64 slots, metrics; bool reset = true; int idx; /* read Fixed counter 3 */ rdpmcl((3 | INTEL_PMC_FIXED_RDPMC_BASE), slots); if (!slots) return 0; /* read PERF_METRICS */ rdpmcl(INTEL_PMC_FIXED_RDPMC_METRICS, metrics); for_each_set_bit(idx, cpuc->active_mask, metric_end + 1) { if (!is_topdown_idx(idx)) continue; other = cpuc->events[idx]; __icl_update_topdown_event(other, slots, metrics, event ? event->hw.saved_slots : 0, event ? event->hw.saved_metric : 0); } /* * Check and update this event, which may have been cleared * in active_mask e.g. x86_pmu_stop() */ if (event && !test_bit(event->hw.idx, cpuc->active_mask)) { __icl_update_topdown_event(event, slots, metrics, event->hw.saved_slots, event->hw.saved_metric); /* * In x86_pmu_stop(), the event is cleared in active_mask first, * then drain the delta, which indicates context switch for * counting. * Save metric and slots for context switch. * Don't need to reset the PERF_METRICS and Fixed counter 3. * Because the values will be restored in next schedule in. */ update_saved_topdown_regs(event, slots, metrics, metric_end); reset = false; } if (reset) { /* The fixed counter 3 has to be written before the PERF_METRICS. */ wrmsrl(MSR_CORE_PERF_FIXED_CTR3, 0); wrmsrl(MSR_PERF_METRICS, 0); if (event) update_saved_topdown_regs(event, 0, 0, metric_end); } return slots; } static u64 icl_update_topdown_event(struct perf_event *event) { return intel_update_topdown_event(event, INTEL_PMC_IDX_METRIC_BASE + x86_pmu.num_topdown_events - 1); } static u64 adl_update_topdown_event(struct perf_event *event) { struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu); if (pmu->cpu_type != hybrid_big) return 0; return icl_update_topdown_event(event); } DEFINE_STATIC_CALL(intel_pmu_update_topdown_event, x86_perf_event_update); static void intel_pmu_read_topdown_event(struct perf_event *event) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); /* Only need to call update_topdown_event() once for group read. */ if ((cpuc->txn_flags & PERF_PMU_TXN_READ) && !is_slots_event(event)) return; perf_pmu_disable(event->pmu); static_call(intel_pmu_update_topdown_event)(event); perf_pmu_enable(event->pmu); } static void intel_pmu_read_event(struct perf_event *event) { if (event->hw.flags & PERF_X86_EVENT_AUTO_RELOAD) intel_pmu_auto_reload_read(event); else if (is_topdown_count(event)) intel_pmu_read_topdown_event(event); else x86_perf_event_update(event); } static void intel_pmu_enable_fixed(struct perf_event *event) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct hw_perf_event *hwc = &event->hw; u64 mask, bits = 0; int idx = hwc->idx; if (is_topdown_idx(idx)) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); /* * When there are other active TopDown events, * don't enable the fixed counter 3 again. */ if (*(u64 *)cpuc->active_mask & INTEL_PMC_OTHER_TOPDOWN_BITS(idx)) return; idx = INTEL_PMC_IDX_FIXED_SLOTS; } intel_set_masks(event, idx); /* * Enable IRQ generation (0x8), if not PEBS, * and enable ring-3 counting (0x2) and ring-0 counting (0x1) * if requested: */ if (!event->attr.precise_ip) bits |= 0x8; if (hwc->config & ARCH_PERFMON_EVENTSEL_USR) bits |= 0x2; if (hwc->config & ARCH_PERFMON_EVENTSEL_OS) bits |= 0x1; /* * ANY bit is supported in v3 and up */ if (x86_pmu.version > 2 && hwc->config & ARCH_PERFMON_EVENTSEL_ANY) bits |= 0x4; idx -= INTEL_PMC_IDX_FIXED; bits <<= (idx * 4); mask = 0xfULL << (idx * 4); if (x86_pmu.intel_cap.pebs_baseline && event->attr.precise_ip) { bits |= ICL_FIXED_0_ADAPTIVE << (idx * 4); mask |= ICL_FIXED_0_ADAPTIVE << (idx * 4); } cpuc->fixed_ctrl_val &= ~mask; cpuc->fixed_ctrl_val |= bits; } static void intel_pmu_enable_event(struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; int idx = hwc->idx; if (unlikely(event->attr.precise_ip)) intel_pmu_pebs_enable(event); switch (idx) { case 0 ... INTEL_PMC_IDX_FIXED - 1: intel_set_masks(event, idx); __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE); break; case INTEL_PMC_IDX_FIXED ... INTEL_PMC_IDX_FIXED_BTS - 1: case INTEL_PMC_IDX_METRIC_BASE ... INTEL_PMC_IDX_METRIC_END: intel_pmu_enable_fixed(event); break; case INTEL_PMC_IDX_FIXED_BTS: if (!__this_cpu_read(cpu_hw_events.enabled)) return; intel_pmu_enable_bts(hwc->config); break; case INTEL_PMC_IDX_FIXED_VLBR: intel_set_masks(event, idx); break; default: pr_warn("Failed to enable the event with invalid index %d\n", idx); } } static void intel_pmu_add_event(struct perf_event *event) { if (event->attr.precise_ip) intel_pmu_pebs_add(event); if (needs_branch_stack(event)) intel_pmu_lbr_add(event); } /* * Save and restart an expired event. Called by NMI contexts, * so it has to be careful about preempting normal event ops: */ int intel_pmu_save_and_restart(struct perf_event *event) { static_call(x86_pmu_update)(event); /* * For a checkpointed counter always reset back to 0. This * avoids a situation where the counter overflows, aborts the * transaction and is then set back to shortly before the * overflow, and overflows and aborts again. */ if (unlikely(event_is_checkpointed(event))) { /* No race with NMIs because the counter should not be armed */ wrmsrl(event->hw.event_base, 0); local64_set(&event->hw.prev_count, 0); } return static_call(x86_pmu_set_period)(event); } static int intel_pmu_set_period(struct perf_event *event) { if (unlikely(is_topdown_count(event))) return static_call(intel_pmu_set_topdown_event_period)(event); return x86_perf_event_set_period(event); } static u64 intel_pmu_update(struct perf_event *event) { if (unlikely(is_topdown_count(event))) return static_call(intel_pmu_update_topdown_event)(event); return x86_perf_event_update(event); } static void intel_pmu_reset(void) { struct debug_store *ds = __this_cpu_read(cpu_hw_events.ds); struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); int num_counters_fixed = hybrid(cpuc->pmu, num_counters_fixed); int num_counters = hybrid(cpuc->pmu, num_counters); unsigned long flags; int idx; if (!num_counters) return; local_irq_save(flags); pr_info("clearing PMU state on CPU#%d\n", smp_processor_id()); for (idx = 0; idx < num_counters; idx++) { wrmsrl_safe(x86_pmu_config_addr(idx), 0ull); wrmsrl_safe(x86_pmu_event_addr(idx), 0ull); } for (idx = 0; idx < num_counters_fixed; idx++) { if (fixed_counter_disabled(idx, cpuc->pmu)) continue; wrmsrl_safe(MSR_ARCH_PERFMON_FIXED_CTR0 + idx, 0ull); } if (ds) ds->bts_index = ds->bts_buffer_base; /* Ack all overflows and disable fixed counters */ if (x86_pmu.version >= 2) { intel_pmu_ack_status(intel_pmu_get_status()); wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, 0); } /* Reset LBRs and LBR freezing */ if (x86_pmu.lbr_nr) { update_debugctlmsr(get_debugctlmsr() & ~(DEBUGCTLMSR_FREEZE_LBRS_ON_PMI|DEBUGCTLMSR_LBR)); } local_irq_restore(flags); } /* * We may be running with guest PEBS events created by KVM, and the * PEBS records are logged into the guest's DS and invisible to host. * * In the case of guest PEBS overflow, we only trigger a fake event * to emulate the PEBS overflow PMI for guest PEBS counters in KVM. * The guest will then vm-entry and check the guest DS area to read * the guest PEBS records. * * The contents and other behavior of the guest event do not matter. */ static void x86_pmu_handle_guest_pebs(struct pt_regs *regs, struct perf_sample_data *data) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); u64 guest_pebs_idxs = cpuc->pebs_enabled & ~cpuc->intel_ctrl_host_mask; struct perf_event *event = NULL; int bit; if (!unlikely(perf_guest_state())) return; if (!x86_pmu.pebs_ept || !x86_pmu.pebs_active || !guest_pebs_idxs) return; for_each_set_bit(bit, (unsigned long *)&guest_pebs_idxs, INTEL_PMC_IDX_FIXED + x86_pmu.num_counters_fixed) { event = cpuc->events[bit]; if (!event->attr.precise_ip) continue; perf_sample_data_init(data, 0, event->hw.last_period); if (perf_event_overflow(event, data, regs)) x86_pmu_stop(event, 0); /* Inject one fake event is enough. */ break; } } static int handle_pmi_common(struct pt_regs *regs, u64 status) { struct perf_sample_data data; struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); int bit; int handled = 0; u64 intel_ctrl = hybrid(cpuc->pmu, intel_ctrl); inc_irq_stat(apic_perf_irqs); /* * Ignore a range of extra bits in status that do not indicate * overflow by themselves. */ status &= ~(GLOBAL_STATUS_COND_CHG | GLOBAL_STATUS_ASIF | GLOBAL_STATUS_LBRS_FROZEN); if (!status) return 0; /* * In case multiple PEBS events are sampled at the same time, * it is possible to have GLOBAL_STATUS bit 62 set indicating * PEBS buffer overflow and also seeing at most 3 PEBS counters * having their bits set in the status register. This is a sign * that there was at least one PEBS record pending at the time * of the PMU interrupt. PEBS counters must only be processed * via the drain_pebs() calls and not via the regular sample * processing loop coming after that the function, otherwise * phony regular samples may be generated in the sampling buffer * not marked with the EXACT tag. Another possibility is to have * one PEBS event and at least one non-PEBS event which overflows * while PEBS has armed. In this case, bit 62 of GLOBAL_STATUS will * not be set, yet the overflow status bit for the PEBS counter will * be on Skylake. * * To avoid this problem, we systematically ignore the PEBS-enabled * counters from the GLOBAL_STATUS mask and we always process PEBS * events via drain_pebs(). */ status &= ~(cpuc->pebs_enabled & x86_pmu.pebs_capable); /* * PEBS overflow sets bit 62 in the global status register */ if (__test_and_clear_bit(GLOBAL_STATUS_BUFFER_OVF_BIT, (unsigned long *)&status)) { u64 pebs_enabled = cpuc->pebs_enabled; handled++; x86_pmu_handle_guest_pebs(regs, &data); x86_pmu.drain_pebs(regs, &data); status &= intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI; /* * PMI throttle may be triggered, which stops the PEBS event. * Although cpuc->pebs_enabled is updated accordingly, the * MSR_IA32_PEBS_ENABLE is not updated. Because the * cpuc->enabled has been forced to 0 in PMI. * Update the MSR if pebs_enabled is changed. */ if (pebs_enabled != cpuc->pebs_enabled) wrmsrl(MSR_IA32_PEBS_ENABLE, cpuc->pebs_enabled); } /* * Intel PT */ if (__test_and_clear_bit(GLOBAL_STATUS_TRACE_TOPAPMI_BIT, (unsigned long *)&status)) { handled++; if (!perf_guest_handle_intel_pt_intr()) intel_pt_interrupt(); } /* * Intel Perf metrics */ if (__test_and_clear_bit(GLOBAL_STATUS_PERF_METRICS_OVF_BIT, (unsigned long *)&status)) { handled++; static_call(intel_pmu_update_topdown_event)(NULL); } /* * Checkpointed counters can lead to 'spurious' PMIs because the * rollback caused by the PMI will have cleared the overflow status * bit. Therefore always force probe these counters. */ status |= cpuc->intel_cp_status; for_each_set_bit(bit, (unsigned long *)&status, X86_PMC_IDX_MAX) { struct perf_event *event = cpuc->events[bit]; handled++; if (!test_bit(bit, cpuc->active_mask)) continue; if (!intel_pmu_save_and_restart(event)) continue; perf_sample_data_init(&data, 0, event->hw.last_period); if (has_branch_stack(event)) { data.br_stack = &cpuc->lbr_stack; data.sample_flags |= PERF_SAMPLE_BRANCH_STACK; } if (perf_event_overflow(event, &data, regs)) x86_pmu_stop(event, 0); } return handled; } /* * This handler is triggered by the local APIC, so the APIC IRQ handling * rules apply: */ static int intel_pmu_handle_irq(struct pt_regs *regs) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); bool late_ack = hybrid_bit(cpuc->pmu, late_ack); bool mid_ack = hybrid_bit(cpuc->pmu, mid_ack); int loops; u64 status; int handled; int pmu_enabled; /* * Save the PMU state. * It needs to be restored when leaving the handler. */ pmu_enabled = cpuc->enabled; /* * In general, the early ACK is only applied for old platforms. * For the big core starts from Haswell, the late ACK should be * applied. * For the small core after Tremont, we have to do the ACK right * before re-enabling counters, which is in the middle of the * NMI handler. */ if (!late_ack && !mid_ack) apic_write(APIC_LVTPC, APIC_DM_NMI); intel_bts_disable_local(); cpuc->enabled = 0; __intel_pmu_disable_all(true); handled = intel_pmu_drain_bts_buffer(); handled += intel_bts_interrupt(); status = intel_pmu_get_status(); if (!status) goto done; loops = 0; again: intel_pmu_lbr_read(); intel_pmu_ack_status(status); if (++loops > 100) { static bool warned; if (!warned) { WARN(1, "perfevents: irq loop stuck!\n"); perf_event_print_debug(); warned = true; } intel_pmu_reset(); goto done; } handled += handle_pmi_common(regs, status); /* * Repeat if there is more work to be done: */ status = intel_pmu_get_status(); if (status) goto again; done: if (mid_ack) apic_write(APIC_LVTPC, APIC_DM_NMI); /* Only restore PMU state when it's active. See x86_pmu_disable(). */ cpuc->enabled = pmu_enabled; if (pmu_enabled) __intel_pmu_enable_all(0, true); intel_bts_enable_local(); /* * Only unmask the NMI after the overflow counters * have been reset. This avoids spurious NMIs on * Haswell CPUs. */ if (late_ack) apic_write(APIC_LVTPC, APIC_DM_NMI); return handled; } static struct event_constraint * intel_bts_constraints(struct perf_event *event) { if (unlikely(intel_pmu_has_bts(event))) return &bts_constraint; return NULL; } /* * Note: matches a fake event, like Fixed2. */ static struct event_constraint * intel_vlbr_constraints(struct perf_event *event) { struct event_constraint *c = &vlbr_constraint; if (unlikely(constraint_match(c, event->hw.config))) { event->hw.flags |= c->flags; return c; } return NULL; } static int intel_alt_er(struct cpu_hw_events *cpuc, int idx, u64 config) { struct extra_reg *extra_regs = hybrid(cpuc->pmu, extra_regs); int alt_idx = idx; if (!(x86_pmu.flags & PMU_FL_HAS_RSP_1)) return idx; if (idx == EXTRA_REG_RSP_0) alt_idx = EXTRA_REG_RSP_1; if (idx == EXTRA_REG_RSP_1) alt_idx = EXTRA_REG_RSP_0; if (config & ~extra_regs[alt_idx].valid_mask) return idx; return alt_idx; } static void intel_fixup_er(struct perf_event *event, int idx) { struct extra_reg *extra_regs = hybrid(event->pmu, extra_regs); event->hw.extra_reg.idx = idx; if (idx == EXTRA_REG_RSP_0) { event->hw.config &= ~INTEL_ARCH_EVENT_MASK; event->hw.config |= extra_regs[EXTRA_REG_RSP_0].event; event->hw.extra_reg.reg = MSR_OFFCORE_RSP_0; } else if (idx == EXTRA_REG_RSP_1) { event->hw.config &= ~INTEL_ARCH_EVENT_MASK; event->hw.config |= extra_regs[EXTRA_REG_RSP_1].event; event->hw.extra_reg.reg = MSR_OFFCORE_RSP_1; } } /* * manage allocation of shared extra msr for certain events * * sharing can be: * per-cpu: to be shared between the various events on a single PMU * per-core: per-cpu + shared by HT threads */ static struct event_constraint * __intel_shared_reg_get_constraints(struct cpu_hw_events *cpuc, struct perf_event *event, struct hw_perf_event_extra *reg) { struct event_constraint *c = &emptyconstraint; struct er_account *era; unsigned long flags; int idx = reg->idx; /* * reg->alloc can be set due to existing state, so for fake cpuc we * need to ignore this, otherwise we might fail to allocate proper fake * state for this extra reg constraint. Also see the comment below. */ if (reg->alloc && !cpuc->is_fake) return NULL; /* call x86_get_event_constraint() */ again: era = &cpuc->shared_regs->regs[idx]; /* * we use spin_lock_irqsave() to avoid lockdep issues when * passing a fake cpuc */ raw_spin_lock_irqsave(&era->lock, flags); if (!atomic_read(&era->ref) || era->config == reg->config) { /* * If its a fake cpuc -- as per validate_{group,event}() we * shouldn't touch event state and we can avoid doing so * since both will only call get_event_constraints() once * on each event, this avoids the need for reg->alloc. * * Not doing the ER fixup will only result in era->reg being * wrong, but since we won't actually try and program hardware * this isn't a problem either. */ if (!cpuc->is_fake) { if (idx != reg->idx) intel_fixup_er(event, idx); /* * x86_schedule_events() can call get_event_constraints() * multiple times on events in the case of incremental * scheduling(). reg->alloc ensures we only do the ER * allocation once. */ reg->alloc = 1; } /* lock in msr value */ era->config = reg->config; era->reg = reg->reg; /* one more user */ atomic_inc(&era->ref); /* * need to call x86_get_event_constraint() * to check if associated event has constraints */ c = NULL; } else { idx = intel_alt_er(cpuc, idx, reg->config); if (idx != reg->idx) { raw_spin_unlock_irqrestore(&era->lock, flags); goto again; } } raw_spin_unlock_irqrestore(&era->lock, flags); return c; } static void __intel_shared_reg_put_constraints(struct cpu_hw_events *cpuc, struct hw_perf_event_extra *reg) { struct er_account *era; /* * Only put constraint if extra reg was actually allocated. Also takes * care of event which do not use an extra shared reg. * * Also, if this is a fake cpuc we shouldn't touch any event state * (reg->alloc) and we don't care about leaving inconsistent cpuc state * either since it'll be thrown out. */ if (!reg->alloc || cpuc->is_fake) return; era = &cpuc->shared_regs->regs[reg->idx]; /* one fewer user */ atomic_dec(&era->ref); /* allocate again next time */ reg->alloc = 0; } static struct event_constraint * intel_shared_regs_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) { struct event_constraint *c = NULL, *d; struct hw_perf_event_extra *xreg, *breg; xreg = &event->hw.extra_reg; if (xreg->idx != EXTRA_REG_NONE) { c = __intel_shared_reg_get_constraints(cpuc, event, xreg); if (c == &emptyconstraint) return c; } breg = &event->hw.branch_reg; if (breg->idx != EXTRA_REG_NONE) { d = __intel_shared_reg_get_constraints(cpuc, event, breg); if (d == &emptyconstraint) { __intel_shared_reg_put_constraints(cpuc, xreg); c = d; } } return c; } struct event_constraint * x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *event_constraints = hybrid(cpuc->pmu, event_constraints); struct event_constraint *c; if (event_constraints) { for_each_event_constraint(c, event_constraints) { if (constraint_match(c, event->hw.config)) { event->hw.flags |= c->flags; return c; } } } return &hybrid_var(cpuc->pmu, unconstrained); } static struct event_constraint * __intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *c; c = intel_vlbr_constraints(event); if (c) return c; c = intel_bts_constraints(event); if (c) return c; c = intel_shared_regs_constraints(cpuc, event); if (c) return c; c = intel_pebs_constraints(event); if (c) return c; return x86_get_event_constraints(cpuc, idx, event); } static void intel_start_scheduling(struct cpu_hw_events *cpuc) { struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs; struct intel_excl_states *xl; int tid = cpuc->excl_thread_id; /* * nothing needed if in group validation mode */ if (cpuc->is_fake || !is_ht_workaround_enabled()) return; /* * no exclusion needed */ if (WARN_ON_ONCE(!excl_cntrs)) return; xl = &excl_cntrs->states[tid]; xl->sched_started = true; /* * lock shared state until we are done scheduling * in stop_event_scheduling() * makes scheduling appear as a transaction */ raw_spin_lock(&excl_cntrs->lock); } static void intel_commit_scheduling(struct cpu_hw_events *cpuc, int idx, int cntr) { struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs; struct event_constraint *c = cpuc->event_constraint[idx]; struct intel_excl_states *xl; int tid = cpuc->excl_thread_id; if (cpuc->is_fake || !is_ht_workaround_enabled()) return; if (WARN_ON_ONCE(!excl_cntrs)) return; if (!(c->flags & PERF_X86_EVENT_DYNAMIC)) return; xl = &excl_cntrs->states[tid]; lockdep_assert_held(&excl_cntrs->lock); if (c->flags & PERF_X86_EVENT_EXCL) xl->state[cntr] = INTEL_EXCL_EXCLUSIVE; else xl->state[cntr] = INTEL_EXCL_SHARED; } static void intel_stop_scheduling(struct cpu_hw_events *cpuc) { struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs; struct intel_excl_states *xl; int tid = cpuc->excl_thread_id; /* * nothing needed if in group validation mode */ if (cpuc->is_fake || !is_ht_workaround_enabled()) return; /* * no exclusion needed */ if (WARN_ON_ONCE(!excl_cntrs)) return; xl = &excl_cntrs->states[tid]; xl->sched_started = false; /* * release shared state lock (acquired in intel_start_scheduling()) */ raw_spin_unlock(&excl_cntrs->lock); } static struct event_constraint * dyn_constraint(struct cpu_hw_events *cpuc, struct event_constraint *c, int idx) { WARN_ON_ONCE(!cpuc->constraint_list); if (!(c->flags & PERF_X86_EVENT_DYNAMIC)) { struct event_constraint *cx; /* * grab pre-allocated constraint entry */ cx = &cpuc->constraint_list[idx]; /* * initialize dynamic constraint * with static constraint */ *cx = *c; /* * mark constraint as dynamic */ cx->flags |= PERF_X86_EVENT_DYNAMIC; c = cx; } return c; } static struct event_constraint * intel_get_excl_constraints(struct cpu_hw_events *cpuc, struct perf_event *event, int idx, struct event_constraint *c) { struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs; struct intel_excl_states *xlo; int tid = cpuc->excl_thread_id; int is_excl, i, w; /* * validating a group does not require * enforcing cross-thread exclusion */ if (cpuc->is_fake || !is_ht_workaround_enabled()) return c; /* * no exclusion needed */ if (WARN_ON_ONCE(!excl_cntrs)) return c; /* * because we modify the constraint, we need * to make a copy. Static constraints come * from static const tables. * * only needed when constraint has not yet * been cloned (marked dynamic) */ c = dyn_constraint(cpuc, c, idx); /* * From here on, the constraint is dynamic. * Either it was just allocated above, or it * was allocated during a earlier invocation * of this function */ /* * state of sibling HT */ xlo = &excl_cntrs->states[tid ^ 1]; /* * event requires exclusive counter access * across HT threads */ is_excl = c->flags & PERF_X86_EVENT_EXCL; if (is_excl && !(event->hw.flags & PERF_X86_EVENT_EXCL_ACCT)) { event->hw.flags |= PERF_X86_EVENT_EXCL_ACCT; if (!cpuc->n_excl++) WRITE_ONCE(excl_cntrs->has_exclusive[tid], 1); } /* * Modify static constraint with current dynamic * state of thread * * EXCLUSIVE: sibling counter measuring exclusive event * SHARED : sibling counter measuring non-exclusive event * UNUSED : sibling counter unused */ w = c->weight; for_each_set_bit(i, c->idxmsk, X86_PMC_IDX_MAX) { /* * exclusive event in sibling counter * our corresponding counter cannot be used * regardless of our event */ if (xlo->state[i] == INTEL_EXCL_EXCLUSIVE) { __clear_bit(i, c->idxmsk); w--; continue; } /* * if measuring an exclusive event, sibling * measuring non-exclusive, then counter cannot * be used */ if (is_excl && xlo->state[i] == INTEL_EXCL_SHARED) { __clear_bit(i, c->idxmsk); w--; continue; } } /* * if we return an empty mask, then switch * back to static empty constraint to avoid * the cost of freeing later on */ if (!w) c = &emptyconstraint; c->weight = w; return c; } static struct event_constraint * intel_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *c1, *c2; c1 = cpuc->event_constraint[idx]; /* * first time only * - static constraint: no change across incremental scheduling calls * - dynamic constraint: handled by intel_get_excl_constraints() */ c2 = __intel_get_event_constraints(cpuc, idx, event); if (c1) { WARN_ON_ONCE(!(c1->flags & PERF_X86_EVENT_DYNAMIC)); bitmap_copy(c1->idxmsk, c2->idxmsk, X86_PMC_IDX_MAX); c1->weight = c2->weight; c2 = c1; } if (cpuc->excl_cntrs) return intel_get_excl_constraints(cpuc, event, idx, c2); return c2; } static void intel_put_excl_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) { struct hw_perf_event *hwc = &event->hw; struct intel_excl_cntrs *excl_cntrs = cpuc->excl_cntrs; int tid = cpuc->excl_thread_id; struct intel_excl_states *xl; /* * nothing needed if in group validation mode */ if (cpuc->is_fake) return; if (WARN_ON_ONCE(!excl_cntrs)) return; if (hwc->flags & PERF_X86_EVENT_EXCL_ACCT) { hwc->flags &= ~PERF_X86_EVENT_EXCL_ACCT; if (!--cpuc->n_excl) WRITE_ONCE(excl_cntrs->has_exclusive[tid], 0); } /* * If event was actually assigned, then mark the counter state as * unused now. */ if (hwc->idx >= 0) { xl = &excl_cntrs->states[tid]; /* * put_constraint may be called from x86_schedule_events() * which already has the lock held so here make locking * conditional. */ if (!xl->sched_started) raw_spin_lock(&excl_cntrs->lock); xl->state[hwc->idx] = INTEL_EXCL_UNUSED; if (!xl->sched_started) raw_spin_unlock(&excl_cntrs->lock); } } static void intel_put_shared_regs_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) { struct hw_perf_event_extra *reg; reg = &event->hw.extra_reg; if (reg->idx != EXTRA_REG_NONE) __intel_shared_reg_put_constraints(cpuc, reg); reg = &event->hw.branch_reg; if (reg->idx != EXTRA_REG_NONE) __intel_shared_reg_put_constraints(cpuc, reg); } static void intel_put_event_constraints(struct cpu_hw_events *cpuc, struct perf_event *event) { intel_put_shared_regs_event_constraints(cpuc, event); /* * is PMU has exclusive counter restrictions, then * all events are subject to and must call the * put_excl_constraints() routine */ if (cpuc->excl_cntrs) intel_put_excl_constraints(cpuc, event); } static void intel_pebs_aliases_core2(struct perf_event *event) { if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) { /* * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P * (0x003c) so that we can use it with PEBS. * * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't * PEBS capable. However we can use INST_RETIRED.ANY_P * (0x00c0), which is a PEBS capable event, to get the same * count. * * INST_RETIRED.ANY_P counts the number of cycles that retires * CNTMASK instructions. By setting CNTMASK to a value (16) * larger than the maximum number of instructions that can be * retired per cycle (4) and then inverting the condition, we * count all cycles that retire 16 or less instructions, which * is every cycle. * * Thereby we gain a PEBS capable cycle counter. */ u64 alt_config = X86_CONFIG(.event=0xc0, .inv=1, .cmask=16); alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK); event->hw.config = alt_config; } } static void intel_pebs_aliases_snb(struct perf_event *event) { if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) { /* * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P * (0x003c) so that we can use it with PEBS. * * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't * PEBS capable. However we can use UOPS_RETIRED.ALL * (0x01c2), which is a PEBS capable event, to get the same * count. * * UOPS_RETIRED.ALL counts the number of cycles that retires * CNTMASK micro-ops. By setting CNTMASK to a value (16) * larger than the maximum number of micro-ops that can be * retired per cycle (4) and then inverting the condition, we * count all cycles that retire 16 or less micro-ops, which * is every cycle. * * Thereby we gain a PEBS capable cycle counter. */ u64 alt_config = X86_CONFIG(.event=0xc2, .umask=0x01, .inv=1, .cmask=16); alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK); event->hw.config = alt_config; } } static void intel_pebs_aliases_precdist(struct perf_event *event) { if ((event->hw.config & X86_RAW_EVENT_MASK) == 0x003c) { /* * Use an alternative encoding for CPU_CLK_UNHALTED.THREAD_P * (0x003c) so that we can use it with PEBS. * * The regular CPU_CLK_UNHALTED.THREAD_P event (0x003c) isn't * PEBS capable. However we can use INST_RETIRED.PREC_DIST * (0x01c0), which is a PEBS capable event, to get the same * count. * * The PREC_DIST event has special support to minimize sample * shadowing effects. One drawback is that it can be * only programmed on counter 1, but that seems like an * acceptable trade off. */ u64 alt_config = X86_CONFIG(.event=0xc0, .umask=0x01, .inv=1, .cmask=16); alt_config |= (event->hw.config & ~X86_RAW_EVENT_MASK); event->hw.config = alt_config; } } static void intel_pebs_aliases_ivb(struct perf_event *event) { if (event->attr.precise_ip < 3) return intel_pebs_aliases_snb(event); return intel_pebs_aliases_precdist(event); } static void intel_pebs_aliases_skl(struct perf_event *event) { if (event->attr.precise_ip < 3) return intel_pebs_aliases_core2(event); return intel_pebs_aliases_precdist(event); } static unsigned long intel_pmu_large_pebs_flags(struct perf_event *event) { unsigned long flags = x86_pmu.large_pebs_flags; if (event->attr.use_clockid) flags &= ~PERF_SAMPLE_TIME; if (!event->attr.exclude_kernel) flags &= ~PERF_SAMPLE_REGS_USER; if (event->attr.sample_regs_user & ~PEBS_GP_REGS) flags &= ~(PERF_SAMPLE_REGS_USER | PERF_SAMPLE_REGS_INTR); return flags; } static int intel_pmu_bts_config(struct perf_event *event) { struct perf_event_attr *attr = &event->attr; if (unlikely(intel_pmu_has_bts(event))) { /* BTS is not supported by this architecture. */ if (!x86_pmu.bts_active) return -EOPNOTSUPP; /* BTS is currently only allowed for user-mode. */ if (!attr->exclude_kernel) return -EOPNOTSUPP; /* BTS is not allowed for precise events. */ if (attr->precise_ip) return -EOPNOTSUPP; /* disallow bts if conflicting events are present */ if (x86_add_exclusive(x86_lbr_exclusive_lbr)) return -EBUSY; event->destroy = hw_perf_lbr_event_destroy; } return 0; } static int core_pmu_hw_config(struct perf_event *event) { int ret = x86_pmu_hw_config(event); if (ret) return ret; return intel_pmu_bts_config(event); } #define INTEL_TD_METRIC_AVAILABLE_MAX (INTEL_TD_METRIC_RETIRING + \ ((x86_pmu.num_topdown_events - 1) << 8)) static bool is_available_metric_event(struct perf_event *event) { return is_metric_event(event) && event->attr.config <= INTEL_TD_METRIC_AVAILABLE_MAX; } static inline bool is_mem_loads_event(struct perf_event *event) { return (event->attr.config & INTEL_ARCH_EVENT_MASK) == X86_CONFIG(.event=0xcd, .umask=0x01); } static inline bool is_mem_loads_aux_event(struct perf_event *event) { return (event->attr.config & INTEL_ARCH_EVENT_MASK) == X86_CONFIG(.event=0x03, .umask=0x82); } static inline bool require_mem_loads_aux_event(struct perf_event *event) { if (!(x86_pmu.flags & PMU_FL_MEM_LOADS_AUX)) return false; if (is_hybrid()) return hybrid_pmu(event->pmu)->cpu_type == hybrid_big; return true; } static inline bool intel_pmu_has_cap(struct perf_event *event, int idx) { union perf_capabilities *intel_cap = &hybrid(event->pmu, intel_cap); return test_bit(idx, (unsigned long *)&intel_cap->capabilities); } static int intel_pmu_hw_config(struct perf_event *event) { int ret = x86_pmu_hw_config(event); if (ret) return ret; ret = intel_pmu_bts_config(event); if (ret) return ret; if (event->attr.precise_ip) { if ((event->attr.config & INTEL_ARCH_EVENT_MASK) == INTEL_FIXED_VLBR_EVENT) return -EINVAL; if (!(event->attr.freq || (event->attr.wakeup_events && !event->attr.watermark))) { event->hw.flags |= PERF_X86_EVENT_AUTO_RELOAD; if (!(event->attr.sample_type & ~intel_pmu_large_pebs_flags(event))) { event->hw.flags |= PERF_X86_EVENT_LARGE_PEBS; event->attach_state |= PERF_ATTACH_SCHED_CB; } } if (x86_pmu.pebs_aliases) x86_pmu.pebs_aliases(event); } if (needs_branch_stack(event)) { ret = intel_pmu_setup_lbr_filter(event); if (ret) return ret; event->attach_state |= PERF_ATTACH_SCHED_CB; /* * BTS is set up earlier in this path, so don't account twice */ if (!unlikely(intel_pmu_has_bts(event))) { /* disallow lbr if conflicting events are present */ if (x86_add_exclusive(x86_lbr_exclusive_lbr)) return -EBUSY; event->destroy = hw_perf_lbr_event_destroy; } } if (event->attr.aux_output) { if (!event->attr.precise_ip) return -EINVAL; event->hw.flags |= PERF_X86_EVENT_PEBS_VIA_PT; } if ((event->attr.type == PERF_TYPE_HARDWARE) || (event->attr.type == PERF_TYPE_HW_CACHE)) return 0; /* * Config Topdown slots and metric events * * The slots event on Fixed Counter 3 can support sampling, * which will be handled normally in x86_perf_event_update(). * * Metric events don't support sampling and require being paired * with a slots event as group leader. When the slots event * is used in a metrics group, it too cannot support sampling. */ if (intel_pmu_has_cap(event, PERF_CAP_METRICS_IDX) && is_topdown_event(event)) { if (event->attr.config1 || event->attr.config2) return -EINVAL; /* * The TopDown metrics events and slots event don't * support any filters. */ if (event->attr.config & X86_ALL_EVENT_FLAGS) return -EINVAL; if (is_available_metric_event(event)) { struct perf_event *leader = event->group_leader; /* The metric events don't support sampling. */ if (is_sampling_event(event)) return -EINVAL; /* The metric events require a slots group leader. */ if (!is_slots_event(leader)) return -EINVAL; /* * The leader/SLOTS must not be a sampling event for * metric use; hardware requires it starts at 0 when used * in conjunction with MSR_PERF_METRICS. */ if (is_sampling_event(leader)) return -EINVAL; event->event_caps |= PERF_EV_CAP_SIBLING; /* * Only once we have a METRICs sibling do we * need TopDown magic. */ leader->hw.flags |= PERF_X86_EVENT_TOPDOWN; event->hw.flags |= PERF_X86_EVENT_TOPDOWN; } } /* * The load latency event X86_CONFIG(.event=0xcd, .umask=0x01) on SPR * doesn't function quite right. As a work-around it needs to always be * co-scheduled with a auxiliary event X86_CONFIG(.event=0x03, .umask=0x82). * The actual count of this second event is irrelevant it just needs * to be active to make the first event function correctly. * * In a group, the auxiliary event must be in front of the load latency * event. The rule is to simplify the implementation of the check. * That's because perf cannot have a complete group at the moment. */ if (require_mem_loads_aux_event(event) && (event->attr.sample_type & PERF_SAMPLE_DATA_SRC) && is_mem_loads_event(event)) { struct perf_event *leader = event->group_leader; struct perf_event *sibling = NULL; if (!is_mem_loads_aux_event(leader)) { for_each_sibling_event(sibling, leader) { if (is_mem_loads_aux_event(sibling)) break; } if (list_entry_is_head(sibling, &leader->sibling_list, sibling_list)) return -ENODATA; } } if (!(event->attr.config & ARCH_PERFMON_EVENTSEL_ANY)) return 0; if (x86_pmu.version < 3) return -EINVAL; ret = perf_allow_cpu(&event->attr); if (ret) return ret; event->hw.config |= ARCH_PERFMON_EVENTSEL_ANY; return 0; } /* * Currently, the only caller of this function is the atomic_switch_perf_msrs(). * The host perf conext helps to prepare the values of the real hardware for * a set of msrs that need to be switched atomically in a vmx transaction. * * For example, the pseudocode needed to add a new msr should look like: * * arr[(*nr)++] = (struct perf_guest_switch_msr){ * .msr = the hardware msr address, * .host = the value the hardware has when it doesn't run a guest, * .guest = the value the hardware has when it runs a guest, * }; * * These values have nothing to do with the emulated values the guest sees * when it uses {RD,WR}MSR, which should be handled by the KVM context, * specifically in the intel_pmu_{get,set}_msr(). */ static struct perf_guest_switch_msr *intel_guest_get_msrs(int *nr, void *data) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct perf_guest_switch_msr *arr = cpuc->guest_switch_msrs; struct kvm_pmu *kvm_pmu = (struct kvm_pmu *)data; u64 intel_ctrl = hybrid(cpuc->pmu, intel_ctrl); u64 pebs_mask = cpuc->pebs_enabled & x86_pmu.pebs_capable; int global_ctrl, pebs_enable; *nr = 0; global_ctrl = (*nr)++; arr[global_ctrl] = (struct perf_guest_switch_msr){ .msr = MSR_CORE_PERF_GLOBAL_CTRL, .host = intel_ctrl & ~cpuc->intel_ctrl_guest_mask, .guest = intel_ctrl & (~cpuc->intel_ctrl_host_mask | ~pebs_mask), }; if (!x86_pmu.pebs) return arr; /* * 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. */ if (x86_pmu.pebs_no_isolation) { arr[(*nr)++] = (struct perf_guest_switch_msr){ .msr = MSR_IA32_PEBS_ENABLE, .host = cpuc->pebs_enabled, .guest = 0, }; return arr; } if (!kvm_pmu || !x86_pmu.pebs_ept) return arr; arr[(*nr)++] = (struct perf_guest_switch_msr){ .msr = MSR_IA32_DS_AREA, .host = (unsigned long)cpuc->ds, .guest = kvm_pmu->ds_area, }; if (x86_pmu.intel_cap.pebs_baseline) { arr[(*nr)++] = (struct perf_guest_switch_msr){ .msr = MSR_PEBS_DATA_CFG, .host = cpuc->pebs_data_cfg, .guest = kvm_pmu->pebs_data_cfg, }; } pebs_enable = (*nr)++; arr[pebs_enable] = (struct perf_guest_switch_msr){ .msr = MSR_IA32_PEBS_ENABLE, .host = cpuc->pebs_enabled & ~cpuc->intel_ctrl_guest_mask, .guest = pebs_mask & ~cpuc->intel_ctrl_host_mask, }; if (arr[pebs_enable].host) { /* Disable guest PEBS if host PEBS is enabled. */ arr[pebs_enable].guest = 0; } else { /* Disable guest PEBS thoroughly for cross-mapped PEBS counters. */ arr[pebs_enable].guest &= ~kvm_pmu->host_cross_mapped_mask; arr[global_ctrl].guest &= ~kvm_pmu->host_cross_mapped_mask; /* Set hw GLOBAL_CTRL bits for PEBS counter when it runs for guest */ arr[global_ctrl].guest |= arr[pebs_enable].guest; } return arr; } static struct perf_guest_switch_msr *core_guest_get_msrs(int *nr, void *data) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); struct perf_guest_switch_msr *arr = cpuc->guest_switch_msrs; int idx; for (idx = 0; idx < x86_pmu.num_counters; idx++) { struct perf_event *event = cpuc->events[idx]; arr[idx].msr = x86_pmu_config_addr(idx); arr[idx].host = arr[idx].guest = 0; if (!test_bit(idx, cpuc->active_mask)) continue; arr[idx].host = arr[idx].guest = event->hw.config | ARCH_PERFMON_EVENTSEL_ENABLE; if (event->attr.exclude_host) arr[idx].host &= ~ARCH_PERFMON_EVENTSEL_ENABLE; else if (event->attr.exclude_guest) arr[idx].guest &= ~ARCH_PERFMON_EVENTSEL_ENABLE; } *nr = x86_pmu.num_counters; return arr; } static void core_pmu_enable_event(struct perf_event *event) { if (!event->attr.exclude_host) x86_pmu_enable_event(event); } static void core_pmu_enable_all(int added) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); int idx; for (idx = 0; idx < x86_pmu.num_counters; idx++) { struct hw_perf_event *hwc = &cpuc->events[idx]->hw; if (!test_bit(idx, cpuc->active_mask) || cpuc->events[idx]->attr.exclude_host) continue; __x86_pmu_enable_event(hwc, ARCH_PERFMON_EVENTSEL_ENABLE); } } static int hsw_hw_config(struct perf_event *event) { int ret = intel_pmu_hw_config(event); if (ret) return ret; if (!boot_cpu_has(X86_FEATURE_RTM) && !boot_cpu_has(X86_FEATURE_HLE)) return 0; event->hw.config |= event->attr.config & (HSW_IN_TX|HSW_IN_TX_CHECKPOINTED); /* * IN_TX/IN_TX-CP filters are not supported by the Haswell PMU with * PEBS or in ANY thread mode. Since the results are non-sensical forbid * this combination. */ if ((event->hw.config & (HSW_IN_TX|HSW_IN_TX_CHECKPOINTED)) && ((event->hw.config & ARCH_PERFMON_EVENTSEL_ANY) || event->attr.precise_ip > 0)) return -EOPNOTSUPP; if (event_is_checkpointed(event)) { /* * Sampling of checkpointed events can cause situations where * the CPU constantly aborts because of a overflow, which is * then checkpointed back and ignored. Forbid checkpointing * for sampling. * * But still allow a long sampling period, so that perf stat * from KVM works. */ if (event->attr.sample_period > 0 && event->attr.sample_period < 0x7fffffff) return -EOPNOTSUPP; } return 0; } static struct event_constraint counter0_constraint = INTEL_ALL_EVENT_CONSTRAINT(0, 0x1); static struct event_constraint counter2_constraint = EVENT_CONSTRAINT(0, 0x4, 0); static struct event_constraint fixed0_constraint = FIXED_EVENT_CONSTRAINT(0x00c0, 0); static struct event_constraint fixed0_counter0_constraint = INTEL_ALL_EVENT_CONSTRAINT(0, 0x100000001ULL); static struct event_constraint * hsw_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *c; c = intel_get_event_constraints(cpuc, idx, event); /* Handle special quirk on in_tx_checkpointed only in counter 2 */ if (event->hw.config & HSW_IN_TX_CHECKPOINTED) { if (c->idxmsk64 & (1U << 2)) return &counter2_constraint; return &emptyconstraint; } return c; } static struct event_constraint * icl_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { /* * Fixed counter 0 has less skid. * Force instruction:ppp in Fixed counter 0 */ if ((event->attr.precise_ip == 3) && constraint_match(&fixed0_constraint, event->hw.config)) return &fixed0_constraint; return hsw_get_event_constraints(cpuc, idx, event); } static struct event_constraint * spr_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *c; c = icl_get_event_constraints(cpuc, idx, event); /* * The :ppp indicates the Precise Distribution (PDist) facility, which * is only supported on the GP counter 0. If a :ppp event which is not * available on the GP counter 0, error out. * Exception: Instruction PDIR is only available on the fixed counter 0. */ if ((event->attr.precise_ip == 3) && !constraint_match(&fixed0_constraint, event->hw.config)) { if (c->idxmsk64 & BIT_ULL(0)) return &counter0_constraint; return &emptyconstraint; } return c; } static struct event_constraint * glp_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *c; /* :ppp means to do reduced skid PEBS which is PMC0 only. */ if (event->attr.precise_ip == 3) return &counter0_constraint; c = intel_get_event_constraints(cpuc, idx, event); return c; } static struct event_constraint * tnt_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *c; c = intel_get_event_constraints(cpuc, idx, event); /* * :ppp means to do reduced skid PEBS, * which is available on PMC0 and fixed counter 0. */ if (event->attr.precise_ip == 3) { /* Force instruction:ppp on PMC0 and Fixed counter 0 */ if (constraint_match(&fixed0_constraint, event->hw.config)) return &fixed0_counter0_constraint; return &counter0_constraint; } return c; } static bool allow_tsx_force_abort = true; static struct event_constraint * tfa_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct event_constraint *c = hsw_get_event_constraints(cpuc, idx, event); /* * Without TFA we must not use PMC3. */ if (!allow_tsx_force_abort && test_bit(3, c->idxmsk)) { c = dyn_constraint(cpuc, c, idx); c->idxmsk64 &= ~(1ULL << 3); c->weight--; } return c; } static struct event_constraint * adl_get_event_constraints(struct cpu_hw_events *cpuc, int idx, struct perf_event *event) { struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu); if (pmu->cpu_type == hybrid_big) return spr_get_event_constraints(cpuc, idx, event); else if (pmu->cpu_type == hybrid_small) return tnt_get_event_constraints(cpuc, idx, event); WARN_ON(1); return &emptyconstraint; } static int adl_hw_config(struct perf_event *event) { struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu); if (pmu->cpu_type == hybrid_big) return hsw_hw_config(event); else if (pmu->cpu_type == hybrid_small) return intel_pmu_hw_config(event); WARN_ON(1); return -EOPNOTSUPP; } static u8 adl_get_hybrid_cpu_type(void) { return hybrid_big; } /* * Broadwell: * * The INST_RETIRED.ALL period always needs to have lowest 6 bits cleared * (BDM55) and it must not use a period smaller than 100 (BDM11). We combine * the two to enforce a minimum period of 128 (the smallest value that has bits * 0-5 cleared and >= 100). * * Because of how the code in x86_perf_event_set_period() works, the truncation * of the lower 6 bits is 'harmless' as we'll occasionally add a longer period * to make up for the 'lost' events due to carrying the 'error' in period_left. * * Therefore the effective (average) period matches the requested period, * despite coarser hardware granularity. */ static void bdw_limit_period(struct perf_event *event, s64 *left) { if ((event->hw.config & INTEL_ARCH_EVENT_MASK) == X86_CONFIG(.event=0xc0, .umask=0x01)) { if (*left < 128) *left = 128; *left &= ~0x3fULL; } } static void nhm_limit_period(struct perf_event *event, s64 *left) { *left = max(*left, 32LL); } static void spr_limit_period(struct perf_event *event, s64 *left) { if (event->attr.precise_ip == 3) *left = max(*left, 128LL); } PMU_FORMAT_ATTR(event, "config:0-7" ); PMU_FORMAT_ATTR(umask, "config:8-15" ); PMU_FORMAT_ATTR(edge, "config:18" ); PMU_FORMAT_ATTR(pc, "config:19" ); PMU_FORMAT_ATTR(any, "config:21" ); /* v3 + */ PMU_FORMAT_ATTR(inv, "config:23" ); PMU_FORMAT_ATTR(cmask, "config:24-31" ); PMU_FORMAT_ATTR(in_tx, "config:32"); PMU_FORMAT_ATTR(in_tx_cp, "config:33"); static struct attribute *intel_arch_formats_attr[] = { &format_attr_event.attr, &format_attr_umask.attr, &format_attr_edge.attr, &format_attr_pc.attr, &format_attr_inv.attr, &format_attr_cmask.attr, NULL, }; ssize_t intel_event_sysfs_show(char *page, u64 config) { u64 event = (config & ARCH_PERFMON_EVENTSEL_EVENT); return x86_event_sysfs_show(page, config, event); } static struct intel_shared_regs *allocate_shared_regs(int cpu) { struct intel_shared_regs *regs; int i; regs = kzalloc_node(sizeof(struct intel_shared_regs), GFP_KERNEL, cpu_to_node(cpu)); if (regs) { /* * initialize the locks to keep lockdep happy */ for (i = 0; i < EXTRA_REG_MAX; i++) raw_spin_lock_init(®s->regs[i].lock); regs->core_id = -1; } return regs; } static struct intel_excl_cntrs *allocate_excl_cntrs(int cpu) { struct intel_excl_cntrs *c; c = kzalloc_node(sizeof(struct intel_excl_cntrs), GFP_KERNEL, cpu_to_node(cpu)); if (c) { raw_spin_lock_init(&c->lock); c->core_id = -1; } return c; } int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu) { cpuc->pebs_record_size = x86_pmu.pebs_record_size; if (is_hybrid() || x86_pmu.extra_regs || x86_pmu.lbr_sel_map) { cpuc->shared_regs = allocate_shared_regs(cpu); if (!cpuc->shared_regs) goto err; } if (x86_pmu.flags & (PMU_FL_EXCL_CNTRS | PMU_FL_TFA)) { size_t sz = X86_PMC_IDX_MAX * sizeof(struct event_constraint); cpuc->constraint_list = kzalloc_node(sz, GFP_KERNEL, cpu_to_node(cpu)); if (!cpuc->constraint_list) goto err_shared_regs; } if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) { cpuc->excl_cntrs = allocate_excl_cntrs(cpu); if (!cpuc->excl_cntrs) goto err_constraint_list; cpuc->excl_thread_id = 0; } return 0; err_constraint_list: kfree(cpuc->constraint_list); cpuc->constraint_list = NULL; err_shared_regs: kfree(cpuc->shared_regs); cpuc->shared_regs = NULL; err: return -ENOMEM; } static int intel_pmu_cpu_prepare(int cpu) { return intel_cpuc_prepare(&per_cpu(cpu_hw_events, cpu), cpu); } static void flip_smm_bit(void *data) { unsigned long set = *(unsigned long *)data; if (set > 0) { msr_set_bit(MSR_IA32_DEBUGCTLMSR, DEBUGCTLMSR_FREEZE_IN_SMM_BIT); } else { msr_clear_bit(MSR_IA32_DEBUGCTLMSR, DEBUGCTLMSR_FREEZE_IN_SMM_BIT); } } static bool init_hybrid_pmu(int cpu) { struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); u8 cpu_type = get_this_hybrid_cpu_type(); struct x86_hybrid_pmu *pmu = NULL; int i; if (!cpu_type && x86_pmu.get_hybrid_cpu_type) cpu_type = x86_pmu.get_hybrid_cpu_type(); for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) { if (x86_pmu.hybrid_pmu[i].cpu_type == cpu_type) { pmu = &x86_pmu.hybrid_pmu[i]; break; } } if (WARN_ON_ONCE(!pmu || (pmu->pmu.type == -1))) { cpuc->pmu = NULL; return false; } /* Only check and dump the PMU information for the first CPU */ if (!cpumask_empty(&pmu->supported_cpus)) goto end; if (!check_hw_exists(&pmu->pmu, pmu->num_counters, pmu->num_counters_fixed)) return false; pr_info("%s PMU driver: ", pmu->name); if (pmu->intel_cap.pebs_output_pt_available) pr_cont("PEBS-via-PT "); pr_cont("\n"); x86_pmu_show_pmu_cap(pmu->num_counters, pmu->num_counters_fixed, pmu->intel_ctrl); end: cpumask_set_cpu(cpu, &pmu->supported_cpus); cpuc->pmu = &pmu->pmu; x86_pmu_update_cpu_context(&pmu->pmu, cpu); return true; } static void intel_pmu_cpu_starting(int cpu) { struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); int core_id = topology_core_id(cpu); int i; if (is_hybrid() && !init_hybrid_pmu(cpu)) return; init_debug_store_on_cpu(cpu); /* * Deal with CPUs that don't clear their LBRs on power-up. */ intel_pmu_lbr_reset(); cpuc->lbr_sel = NULL; if (x86_pmu.flags & PMU_FL_TFA) { WARN_ON_ONCE(cpuc->tfa_shadow); cpuc->tfa_shadow = ~0ULL; intel_set_tfa(cpuc, false); } if (x86_pmu.version > 1) flip_smm_bit(&x86_pmu.attr_freeze_on_smi); /* * Disable perf metrics if any added CPU doesn't support it. * * Turn off the check for a hybrid architecture, because the * architecture MSR, MSR_IA32_PERF_CAPABILITIES, only indicate * the architecture features. The perf metrics is a model-specific * feature for now. The corresponding bit should always be 0 on * a hybrid platform, e.g., Alder Lake. */ if (!is_hybrid() && x86_pmu.intel_cap.perf_metrics) { union perf_capabilities perf_cap; rdmsrl(MSR_IA32_PERF_CAPABILITIES, perf_cap.capabilities); if (!perf_cap.perf_metrics) { x86_pmu.intel_cap.perf_metrics = 0; x86_pmu.intel_ctrl &= ~(1ULL << GLOBAL_CTRL_EN_PERF_METRICS); } } if (!cpuc->shared_regs) return; if (!(x86_pmu.flags & PMU_FL_NO_HT_SHARING)) { for_each_cpu(i, topology_sibling_cpumask(cpu)) { struct intel_shared_regs *pc; pc = per_cpu(cpu_hw_events, i).shared_regs; if (pc && pc->core_id == core_id) { cpuc->kfree_on_online[0] = cpuc->shared_regs; cpuc->shared_regs = pc; break; } } cpuc->shared_regs->core_id = core_id; cpuc->shared_regs->refcnt++; } if (x86_pmu.lbr_sel_map) cpuc->lbr_sel = &cpuc->shared_regs->regs[EXTRA_REG_LBR]; if (x86_pmu.flags & PMU_FL_EXCL_CNTRS) { for_each_cpu(i, topology_sibling_cpumask(cpu)) { struct cpu_hw_events *sibling; struct intel_excl_cntrs *c; sibling = &per_cpu(cpu_hw_events, i); c = sibling->excl_cntrs; if (c && c->core_id == core_id) { cpuc->kfree_on_online[1] = cpuc->excl_cntrs; cpuc->excl_cntrs = c; if (!sibling->excl_thread_id) cpuc->excl_thread_id = 1; break; } } cpuc->excl_cntrs->core_id = core_id; cpuc->excl_cntrs->refcnt++; } } static void free_excl_cntrs(struct cpu_hw_events *cpuc) { struct intel_excl_cntrs *c; c = cpuc->excl_cntrs; if (c) { if (c->core_id == -1 || --c->refcnt == 0) kfree(c); cpuc->excl_cntrs = NULL; } kfree(cpuc->constraint_list); cpuc->constraint_list = NULL; } static void intel_pmu_cpu_dying(int cpu) { fini_debug_store_on_cpu(cpu); } void intel_cpuc_finish(struct cpu_hw_events *cpuc) { struct intel_shared_regs *pc; pc = cpuc->shared_regs; if (pc) { if (pc->core_id == -1 || --pc->refcnt == 0) kfree(pc); cpuc->shared_regs = NULL; } free_excl_cntrs(cpuc); } static void intel_pmu_cpu_dead(int cpu) { struct cpu_hw_events *cpuc = &per_cpu(cpu_hw_events, cpu); intel_cpuc_finish(cpuc); if (is_hybrid() && cpuc->pmu) cpumask_clear_cpu(cpu, &hybrid_pmu(cpuc->pmu)->supported_cpus); } static void intel_pmu_sched_task(struct perf_event_context *ctx, bool sched_in) { intel_pmu_pebs_sched_task(ctx, sched_in); intel_pmu_lbr_sched_task(ctx, sched_in); } static void intel_pmu_swap_task_ctx(struct perf_event_context *prev, struct perf_event_context *next) { intel_pmu_lbr_swap_task_ctx(prev, next); } static int intel_pmu_check_period(struct perf_event *event, u64 value) { return intel_pmu_has_bts_period(event, value) ? -EINVAL : 0; } static void intel_aux_output_init(void) { /* Refer also intel_pmu_aux_output_match() */ if (x86_pmu.intel_cap.pebs_output_pt_available) x86_pmu.assign = intel_pmu_assign_event; } static int intel_pmu_aux_output_match(struct perf_event *event) { /* intel_pmu_assign_event() is needed, refer intel_aux_output_init() */ if (!x86_pmu.intel_cap.pebs_output_pt_available) return 0; return is_intel_pt_event(event); } static int intel_pmu_filter_match(struct perf_event *event) { struct x86_hybrid_pmu *pmu = hybrid_pmu(event->pmu); unsigned int cpu = smp_processor_id(); return cpumask_test_cpu(cpu, &pmu->supported_cpus); } PMU_FORMAT_ATTR(offcore_rsp, "config1:0-63"); PMU_FORMAT_ATTR(ldlat, "config1:0-15"); PMU_FORMAT_ATTR(frontend, "config1:0-23"); static struct attribute *intel_arch3_formats_attr[] = { &format_attr_event.attr, &format_attr_umask.attr, &format_attr_edge.attr, &format_attr_pc.attr, &format_attr_any.attr, &format_attr_inv.attr, &format_attr_cmask.attr, NULL, }; static struct attribute *hsw_format_attr[] = { &format_attr_in_tx.attr, &format_attr_in_tx_cp.attr, &format_attr_offcore_rsp.attr, &format_attr_ldlat.attr, NULL }; static struct attribute *nhm_format_attr[] = { &format_attr_offcore_rsp.attr, &format_attr_ldlat.attr, NULL }; static struct attribute *slm_format_attr[] = { &format_attr_offcore_rsp.attr, NULL }; static struct attribute *skl_format_attr[] = { &format_attr_frontend.attr, NULL, }; static __initconst const struct x86_pmu core_pmu = { .name = "core", .handle_irq = x86_pmu_handle_irq, .disable_all = x86_pmu_disable_all, .enable_all = core_pmu_enable_all, .enable = core_pmu_enable_event, .disable = x86_pmu_disable_event, .hw_config = core_pmu_hw_config, .schedule_events = x86_schedule_events, .eventsel = MSR_ARCH_PERFMON_EVENTSEL0, .perfctr = MSR_ARCH_PERFMON_PERFCTR0, .event_map = intel_pmu_event_map, .max_events = ARRAY_SIZE(intel_perfmon_event_map), .apic = 1, .large_pebs_flags = LARGE_PEBS_FLAGS, /* * Intel PMCs cannot be accessed sanely above 32-bit width, * so we install an artificial 1<<31 period regardless of * the generic event period: */ .max_period = (1ULL<<31) - 1, .get_event_constraints = intel_get_event_constraints, .put_event_constraints = intel_put_event_constraints, .event_constraints = intel_core_event_constraints, .guest_get_msrs = core_guest_get_msrs, .format_attrs = intel_arch_formats_attr, .events_sysfs_show = intel_event_sysfs_show, /* * Virtual (or funny metal) CPU can define x86_pmu.extra_regs * together with PMU version 1 and thus be using core_pmu with * shared_regs. We need following callbacks here to allocate * it properly. */ .cpu_prepare = intel_pmu_cpu_prepare, .cpu_starting = intel_pmu_cpu_starting, .cpu_dying = intel_pmu_cpu_dying, .cpu_dead = intel_pmu_cpu_dead, .check_period = intel_pmu_check_period, .lbr_reset = intel_pmu_lbr_reset_64, .lbr_read = intel_pmu_lbr_read_64, .lbr_save = intel_pmu_lbr_save, .lbr_restore = intel_pmu_lbr_restore, }; static __initconst const struct x86_pmu intel_pmu = { .name = "Intel", .handle_irq = intel_pmu_handle_irq, .disable_all = intel_pmu_disable_all, .enable_all = intel_pmu_enable_all, .enable = intel_pmu_enable_event, .disable = intel_pmu_disable_event, .add = intel_pmu_add_event, .del = intel_pmu_del_event, .read = intel_pmu_read_event, .set_period = intel_pmu_set_period, .update = intel_pmu_update, .hw_config = intel_pmu_hw_config, .schedule_events = x86_schedule_events, .eventsel = MSR_ARCH_PERFMON_EVENTSEL0, .perfctr = MSR_ARCH_PERFMON_PERFCTR0, .event_map = intel_pmu_event_map, .max_events = ARRAY_SIZE(intel_perfmon_event_map), .apic = 1, .large_pebs_flags = LARGE_PEBS_FLAGS, /* * Intel PMCs cannot be accessed sanely above 32 bit width, * so we install an artificial 1<<31 period regardless of * the generic event period: */ .max_period = (1ULL << 31) - 1, .get_event_constraints = intel_get_event_constraints, .put_event_constraints = intel_put_event_constraints, .pebs_aliases = intel_pebs_aliases_core2, .format_attrs = intel_arch3_formats_attr, .events_sysfs_show = intel_event_sysfs_show, .cpu_prepare = intel_pmu_cpu_prepare, .cpu_starting = intel_pmu_cpu_starting, .cpu_dying = intel_pmu_cpu_dying, .cpu_dead = intel_pmu_cpu_dead, .guest_get_msrs = intel_guest_get_msrs, .sched_task = intel_pmu_sched_task, .swap_task_ctx = intel_pmu_swap_task_ctx, .check_period = intel_pmu_check_period, .aux_output_match = intel_pmu_aux_output_match, .lbr_reset = intel_pmu_lbr_reset_64, .lbr_read = intel_pmu_lbr_read_64, .lbr_save = intel_pmu_lbr_save, .lbr_restore = intel_pmu_lbr_restore, /* * SMM has access to all 4 rings and while traditionally SMM code only * ran in CPL0, 2021-era firmware is starting to make use of CPL3 in SMM. * * Since the EVENTSEL.{USR,OS} CPL filtering makes no distinction * between SMM or not, this results in what should be pure userspace * counters including SMM data. * * This is a clear privilege issue, therefore globally disable * counting SMM by default. */ .attr_freeze_on_smi = 1, }; static __init void intel_clovertown_quirk(void) { /* * PEBS is unreliable due to: * * AJ67 - PEBS may experience CPL leaks * AJ68 - PEBS PMI may be delayed by one event * AJ69 - GLOBAL_STATUS[62] will only be set when DEBUGCTL[12] * AJ106 - FREEZE_LBRS_ON_PMI doesn't work in combination with PEBS * * AJ67 could be worked around by restricting the OS/USR flags. * AJ69 could be worked around by setting PMU_FREEZE_ON_PMI. * * AJ106 could possibly be worked around by not allowing LBR * usage from PEBS, including the fixup. * AJ68 could possibly be worked around by always programming * a pebs_event_reset[0] value and coping with the lost events. * * But taken together it might just make sense to not enable PEBS on * these chips. */ pr_warn("PEBS disabled due to CPU errata\n"); x86_pmu.pebs = 0; x86_pmu.pebs_constraints = NULL; } static const struct x86_cpu_desc isolation_ucodes[] = { INTEL_CPU_DESC(INTEL_FAM6_HASWELL, 3, 0x0000001f), INTEL_CPU_DESC(INTEL_FAM6_HASWELL_L, 1, 0x0000001e), INTEL_CPU_DESC(INTEL_FAM6_HASWELL_G, 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, 4, 0x00000023), INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_G, 1, 0x00000014), INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 2, 0x00000010), INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 3, 0x07000009), INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 4, 0x0f000009), INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_D, 5, 0x0e000002), INTEL_CPU_DESC(INTEL_FAM6_BROADWELL_X, 1, 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_X, 5, 0x00000000), INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 6, 0x00000000), INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 7, 0x00000000), INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_X, 11, 0x00000000), INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE_L, 3, 0x0000007c), INTEL_CPU_DESC(INTEL_FAM6_SKYLAKE, 3, 0x0000007c), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 9, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 9, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 10, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 11, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE_L, 12, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 10, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 11, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 12, 0x0000004e), INTEL_CPU_DESC(INTEL_FAM6_KABYLAKE, 13, 0x0000004e), {} }; static void intel_check_pebs_isolation(void) { x86_pmu.pebs_no_isolation = !x86_cpu_has_min_microcode_rev(isolation_ucodes); } 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(); } 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), {} }; static bool intel_snb_pebs_broken(void) { return !x86_cpu_has_min_microcode_rev(pebs_ucodes); } static void intel_snb_check_microcode(void) { if (intel_snb_pebs_broken() == x86_pmu.pebs_broken) return; /* * Serialized by the microcode lock.. */ if (x86_pmu.pebs_broken) { pr_info("PEBS enabled due to microcode update\n"); x86_pmu.pebs_broken = 0; } else { pr_info("PEBS disabled due to CPU errata, please upgrade microcode\n"); x86_pmu.pebs_broken = 1; } } static bool is_lbr_from(unsigned long msr) { unsigned long lbr_from_nr = x86_pmu.lbr_from + x86_pmu.lbr_nr; return x86_pmu.lbr_from <= msr && msr < lbr_from_nr; } /* * Under certain circumstances, access certain MSR may cause #GP. * The function tests if the input MSR can be safely accessed. */ static bool check_msr(unsigned long msr, u64 mask) { u64 val_old, val_new, val_tmp; /* * Disable the check for real HW, so we don't * mess with potentially enabled registers: */ if (!boot_cpu_has(X86_FEATURE_HYPERVISOR)) return true; /* * Read the current value, change it and read it back to see if it * matches, this is needed to detect certain hardware emulators * (qemu/kvm) that don't trap on the MSR access and always return 0s. */ if (rdmsrl_safe(msr, &val_old)) return false; /* * Only change the bits which can be updated by wrmsrl. */ val_tmp = val_old ^ mask; if (is_lbr_from(msr)) val_tmp = lbr_from_signext_quirk_wr(val_tmp); if (wrmsrl_safe(msr, val_tmp) || rdmsrl_safe(msr, &val_new)) return false; /* * Quirk only affects validation in wrmsr(), so wrmsrl()'s value * should equal rdmsrl()'s even with the quirk. */ if (val_new != val_tmp) return false; if (is_lbr_from(msr)) val_old = lbr_from_signext_quirk_wr(val_old); /* Here it's sure that the MSR can be safely accessed. * Restore the old value and return. */ wrmsrl(msr, val_old); return true; } static __init void intel_sandybridge_quirk(void) { x86_pmu.check_microcode = intel_snb_check_microcode; cpus_read_lock(); intel_snb_check_microcode(); cpus_read_unlock(); } static const struct { int id; char *name; } intel_arch_events_map[] __initconst = { { PERF_COUNT_HW_CPU_CYCLES, "cpu cycles" }, { PERF_COUNT_HW_INSTRUCTIONS, "instructions" }, { PERF_COUNT_HW_BUS_CYCLES, "bus cycles" }, { PERF_COUNT_HW_CACHE_REFERENCES, "cache references" }, { PERF_COUNT_HW_CACHE_MISSES, "cache misses" }, { PERF_COUNT_HW_BRANCH_INSTRUCTIONS, "branch instructions" }, { PERF_COUNT_HW_BRANCH_MISSES, "branch misses" }, }; static __init void intel_arch_events_quirk(void) { int bit; /* disable event that reported as not present by cpuid */ for_each_set_bit(bit, x86_pmu.events_mask, ARRAY_SIZE(intel_arch_events_map)) { intel_perfmon_event_map[intel_arch_events_map[bit].id] = 0; pr_warn("CPUID marked event: \'%s\' unavailable\n", intel_arch_events_map[bit].name); } } static __init void intel_nehalem_quirk(void) { union cpuid10_ebx ebx; ebx.full = x86_pmu.events_maskl; if (ebx.split.no_branch_misses_retired) { /* * Erratum AAJ80 detected, we work it around by using * the BR_MISP_EXEC.ANY event. This will over-count * branch-misses, but it's still much better than the * architectural event which is often completely bogus: */ intel_perfmon_event_map[PERF_COUNT_HW_BRANCH_MISSES] = 0x7f89; ebx.split.no_branch_misses_retired = 0; x86_pmu.events_maskl = ebx.full; pr_info("CPU erratum AAJ80 worked around\n"); } } /* * enable software workaround for errata: * SNB: BJ122 * IVB: BV98 * HSW: HSD29 * * Only needed when HT is enabled. However detecting * if HT is enabled is difficult (model specific). So instead, * we enable the workaround in the early boot, and verify if * it is needed in a later initcall phase once we have valid * topology information to check if HT is actually enabled */ static __init void intel_ht_bug(void) { x86_pmu.flags |= PMU_FL_EXCL_CNTRS | PMU_FL_EXCL_ENABLED; x86_pmu.start_scheduling = intel_start_scheduling; x86_pmu.commit_scheduling = intel_commit_scheduling; x86_pmu.stop_scheduling = intel_stop_scheduling; } EVENT_ATTR_STR(mem-loads, mem_ld_hsw, "event=0xcd,umask=0x1,ldlat=3"); EVENT_ATTR_STR(mem-stores, mem_st_hsw, "event=0xd0,umask=0x82") /* Haswell special events */ EVENT_ATTR_STR(tx-start, tx_start, "event=0xc9,umask=0x1"); EVENT_ATTR_STR(tx-commit, tx_commit, "event=0xc9,umask=0x2"); EVENT_ATTR_STR(tx-abort, tx_abort, "event=0xc9,umask=0x4"); EVENT_ATTR_STR(tx-capacity, tx_capacity, "event=0x54,umask=0x2"); EVENT_ATTR_STR(tx-conflict, tx_conflict, "event=0x54,umask=0x1"); EVENT_ATTR_STR(el-start, el_start, "event=0xc8,umask=0x1"); EVENT_ATTR_STR(el-commit, el_commit, "event=0xc8,umask=0x2"); EVENT_ATTR_STR(el-abort, el_abort, "event=0xc8,umask=0x4"); EVENT_ATTR_STR(el-capacity, el_capacity, "event=0x54,umask=0x2"); EVENT_ATTR_STR(el-conflict, el_conflict, "event=0x54,umask=0x1"); EVENT_ATTR_STR(cycles-t, cycles_t, "event=0x3c,in_tx=1"); EVENT_ATTR_STR(cycles-ct, cycles_ct, "event=0x3c,in_tx=1,in_tx_cp=1"); static struct attribute *hsw_events_attrs[] = { EVENT_PTR(td_slots_issued), EVENT_PTR(td_slots_retired), EVENT_PTR(td_fetch_bubbles), EVENT_PTR(td_total_slots), EVENT_PTR(td_total_slots_scale), EVENT_PTR(td_recovery_bubbles), EVENT_PTR(td_recovery_bubbles_scale), NULL }; static struct attribute *hsw_mem_events_attrs[] = { EVENT_PTR(mem_ld_hsw), EVENT_PTR(mem_st_hsw), NULL, }; static struct attribute *hsw_tsx_events_attrs[] = { EVENT_PTR(tx_start), EVENT_PTR(tx_commit), EVENT_PTR(tx_abort), EVENT_PTR(tx_capacity), EVENT_PTR(tx_conflict), EVENT_PTR(el_start), EVENT_PTR(el_commit), EVENT_PTR(el_abort), EVENT_PTR(el_capacity), EVENT_PTR(el_conflict), EVENT_PTR(cycles_t), EVENT_PTR(cycles_ct), NULL }; EVENT_ATTR_STR(tx-capacity-read, tx_capacity_read, "event=0x54,umask=0x80"); EVENT_ATTR_STR(tx-capacity-write, tx_capacity_write, "event=0x54,umask=0x2"); EVENT_ATTR_STR(el-capacity-read, el_capacity_read, "event=0x54,umask=0x80"); EVENT_ATTR_STR(el-capacity-write, el_capacity_write, "event=0x54,umask=0x2"); static struct attribute *icl_events_attrs[] = { EVENT_PTR(mem_ld_hsw), EVENT_PTR(mem_st_hsw), NULL, }; static struct attribute *icl_td_events_attrs[] = { EVENT_PTR(slots), EVENT_PTR(td_retiring), EVENT_PTR(td_bad_spec), EVENT_PTR(td_fe_bound), EVENT_PTR(td_be_bound), NULL, }; static struct attribute *icl_tsx_events_attrs[] = { EVENT_PTR(tx_start), EVENT_PTR(tx_abort), EVENT_PTR(tx_commit), EVENT_PTR(tx_capacity_read), EVENT_PTR(tx_capacity_write), EVENT_PTR(tx_conflict), EVENT_PTR(el_start), EVENT_PTR(el_abort), EVENT_PTR(el_commit), EVENT_PTR(el_capacity_read), EVENT_PTR(el_capacity_write), EVENT_PTR(el_conflict), EVENT_PTR(cycles_t), EVENT_PTR(cycles_ct), NULL, }; EVENT_ATTR_STR(mem-stores, mem_st_spr, "event=0xcd,umask=0x2"); EVENT_ATTR_STR(mem-loads-aux, mem_ld_aux, "event=0x03,umask=0x82"); static struct attribute *spr_events_attrs[] = { EVENT_PTR(mem_ld_hsw), EVENT_PTR(mem_st_spr), EVENT_PTR(mem_ld_aux), NULL, }; static struct attribute *spr_td_events_attrs[] = { EVENT_PTR(slots), EVENT_PTR(td_retiring), EVENT_PTR(td_bad_spec), EVENT_PTR(td_fe_bound), EVENT_PTR(td_be_bound), EVENT_PTR(td_heavy_ops), EVENT_PTR(td_br_mispredict), EVENT_PTR(td_fetch_lat), EVENT_PTR(td_mem_bound), NULL, }; static struct attribute *spr_tsx_events_attrs[] = { EVENT_PTR(tx_start), EVENT_PTR(tx_abort), EVENT_PTR(tx_commit), EVENT_PTR(tx_capacity_read), EVENT_PTR(tx_capacity_write), EVENT_PTR(tx_conflict), EVENT_PTR(cycles_t), EVENT_PTR(cycles_ct), NULL, }; static ssize_t freeze_on_smi_show(struct device *cdev, struct device_attribute *attr, char *buf) { return sprintf(buf, "%lu\n", x86_pmu.attr_freeze_on_smi); } static DEFINE_MUTEX(freeze_on_smi_mutex); static ssize_t freeze_on_smi_store(struct device *cdev, struct device_attribute *attr, const char *buf, size_t count) { unsigned long val; ssize_t ret; ret = kstrtoul(buf, 0, &val); if (ret) return ret; if (val > 1) return -EINVAL; mutex_lock(&freeze_on_smi_mutex); if (x86_pmu.attr_freeze_on_smi == val) goto done; x86_pmu.attr_freeze_on_smi = val; cpus_read_lock(); on_each_cpu(flip_smm_bit, &val, 1); cpus_read_unlock(); done: mutex_unlock(&freeze_on_smi_mutex); return count; } static void update_tfa_sched(void *ignored) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); /* * check if PMC3 is used * and if so force schedule out for all event types all contexts */ if (test_bit(3, cpuc->active_mask)) perf_pmu_resched(x86_get_pmu(smp_processor_id())); } static ssize_t show_sysctl_tfa(struct device *cdev, struct device_attribute *attr, char *buf) { return snprintf(buf, 40, "%d\n", allow_tsx_force_abort); } static ssize_t set_sysctl_tfa(struct device *cdev, struct device_attribute *attr, const char *buf, size_t count) { bool val; ssize_t ret; ret = kstrtobool(buf, &val); if (ret) return ret; /* no change */ if (val == allow_tsx_force_abort) return count; allow_tsx_force_abort = val; cpus_read_lock(); on_each_cpu(update_tfa_sched, NULL, 1); cpus_read_unlock(); return count; } static DEVICE_ATTR_RW(freeze_on_smi); static ssize_t branches_show(struct device *cdev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%d\n", x86_pmu.lbr_nr); } static DEVICE_ATTR_RO(branches); static struct attribute *lbr_attrs[] = { &dev_attr_branches.attr, NULL }; static char pmu_name_str[30]; static ssize_t pmu_name_show(struct device *cdev, struct device_attribute *attr, char *buf) { return snprintf(buf, PAGE_SIZE, "%s\n", pmu_name_str); } static DEVICE_ATTR_RO(pmu_name); static struct attribute *intel_pmu_caps_attrs[] = { &dev_attr_pmu_name.attr, NULL }; static DEVICE_ATTR(allow_tsx_force_abort, 0644, show_sysctl_tfa, set_sysctl_tfa); static struct attribute *intel_pmu_attrs[] = { &dev_attr_freeze_on_smi.attr, &dev_attr_allow_tsx_force_abort.attr, NULL, }; static umode_t tsx_is_visible(struct kobject *kobj, struct attribute *attr, int i) { return boot_cpu_has(X86_FEATURE_RTM) ? attr->mode : 0; } static umode_t pebs_is_visible(struct kobject *kobj, struct attribute *attr, int i) { return x86_pmu.pebs ? attr->mode : 0; } static umode_t lbr_is_visible(struct kobject *kobj, struct attribute *attr, int i) { return x86_pmu.lbr_nr ? attr->mode : 0; } static umode_t exra_is_visible(struct kobject *kobj, struct attribute *attr, int i) { return x86_pmu.version >= 2 ? attr->mode : 0; } static umode_t default_is_visible(struct kobject *kobj, struct attribute *attr, int i) { if (attr == &dev_attr_allow_tsx_force_abort.attr) return x86_pmu.flags & PMU_FL_TFA ? attr->mode : 0; return attr->mode; } static struct attribute_group group_events_td = { .name = "events", }; static struct attribute_group group_events_mem = { .name = "events", .is_visible = pebs_is_visible, }; static struct attribute_group group_events_tsx = { .name = "events", .is_visible = tsx_is_visible, }; static struct attribute_group group_caps_gen = { .name = "caps", .attrs = intel_pmu_caps_attrs, }; static struct attribute_group group_caps_lbr = { .name = "caps", .attrs = lbr_attrs, .is_visible = lbr_is_visible, }; static struct attribute_group group_format_extra = { .name = "format", .is_visible = exra_is_visible, }; static struct attribute_group group_format_extra_skl = { .name = "format", .is_visible = exra_is_visible, }; static struct attribute_group group_default = { .attrs = intel_pmu_attrs, .is_visible = default_is_visible, }; static const struct attribute_group *attr_update[] = { &group_events_td, &group_events_mem, &group_events_tsx, &group_caps_gen, &group_caps_lbr, &group_format_extra, &group_format_extra_skl, &group_default, NULL, }; EVENT_ATTR_STR_HYBRID(slots, slots_adl, "event=0x00,umask=0x4", hybrid_big); EVENT_ATTR_STR_HYBRID(topdown-retiring, td_retiring_adl, "event=0xc2,umask=0x0;event=0x00,umask=0x80", hybrid_big_small); EVENT_ATTR_STR_HYBRID(topdown-bad-spec, td_bad_spec_adl, "event=0x73,umask=0x0;event=0x00,umask=0x81", hybrid_big_small); EVENT_ATTR_STR_HYBRID(topdown-fe-bound, td_fe_bound_adl, "event=0x71,umask=0x0;event=0x00,umask=0x82", hybrid_big_small); EVENT_ATTR_STR_HYBRID(topdown-be-bound, td_be_bound_adl, "event=0x74,umask=0x0;event=0x00,umask=0x83", hybrid_big_small); EVENT_ATTR_STR_HYBRID(topdown-heavy-ops, td_heavy_ops_adl, "event=0x00,umask=0x84", hybrid_big); EVENT_ATTR_STR_HYBRID(topdown-br-mispredict, td_br_mis_adl, "event=0x00,umask=0x85", hybrid_big); EVENT_ATTR_STR_HYBRID(topdown-fetch-lat, td_fetch_lat_adl, "event=0x00,umask=0x86", hybrid_big); EVENT_ATTR_STR_HYBRID(topdown-mem-bound, td_mem_bound_adl, "event=0x00,umask=0x87", hybrid_big); static struct attribute *adl_hybrid_events_attrs[] = { EVENT_PTR(slots_adl), EVENT_PTR(td_retiring_adl), EVENT_PTR(td_bad_spec_adl), EVENT_PTR(td_fe_bound_adl), EVENT_PTR(td_be_bound_adl), EVENT_PTR(td_heavy_ops_adl), EVENT_PTR(td_br_mis_adl), EVENT_PTR(td_fetch_lat_adl), EVENT_PTR(td_mem_bound_adl), NULL, }; /* Must be in IDX order */ EVENT_ATTR_STR_HYBRID(mem-loads, mem_ld_adl, "event=0xd0,umask=0x5,ldlat=3;event=0xcd,umask=0x1,ldlat=3", hybrid_big_small); EVENT_ATTR_STR_HYBRID(mem-stores, mem_st_adl, "event=0xd0,umask=0x6;event=0xcd,umask=0x2", hybrid_big_small); EVENT_ATTR_STR_HYBRID(mem-loads-aux, mem_ld_aux_adl, "event=0x03,umask=0x82", hybrid_big); static struct attribute *adl_hybrid_mem_attrs[] = { EVENT_PTR(mem_ld_adl), EVENT_PTR(mem_st_adl), EVENT_PTR(mem_ld_aux_adl), NULL, }; EVENT_ATTR_STR_HYBRID(tx-start, tx_start_adl, "event=0xc9,umask=0x1", hybrid_big); EVENT_ATTR_STR_HYBRID(tx-commit, tx_commit_adl, "event=0xc9,umask=0x2", hybrid_big); EVENT_ATTR_STR_HYBRID(tx-abort, tx_abort_adl, "event=0xc9,umask=0x4", hybrid_big); EVENT_ATTR_STR_HYBRID(tx-conflict, tx_conflict_adl, "event=0x54,umask=0x1", hybrid_big); EVENT_ATTR_STR_HYBRID(cycles-t, cycles_t_adl, "event=0x3c,in_tx=1", hybrid_big); EVENT_ATTR_STR_HYBRID(cycles-ct, cycles_ct_adl, "event=0x3c,in_tx=1,in_tx_cp=1", hybrid_big); EVENT_ATTR_STR_HYBRID(tx-capacity-read, tx_capacity_read_adl, "event=0x54,umask=0x80", hybrid_big); EVENT_ATTR_STR_HYBRID(tx-capacity-write, tx_capacity_write_adl, "event=0x54,umask=0x2", hybrid_big); static struct attribute *adl_hybrid_tsx_attrs[] = { EVENT_PTR(tx_start_adl), EVENT_PTR(tx_abort_adl), EVENT_PTR(tx_commit_adl), EVENT_PTR(tx_capacity_read_adl), EVENT_PTR(tx_capacity_write_adl), EVENT_PTR(tx_conflict_adl), EVENT_PTR(cycles_t_adl), EVENT_PTR(cycles_ct_adl), NULL, }; FORMAT_ATTR_HYBRID(in_tx, hybrid_big); FORMAT_ATTR_HYBRID(in_tx_cp, hybrid_big); FORMAT_ATTR_HYBRID(offcore_rsp, hybrid_big_small); FORMAT_ATTR_HYBRID(ldlat, hybrid_big_small); FORMAT_ATTR_HYBRID(frontend, hybrid_big); static struct attribute *adl_hybrid_extra_attr_rtm[] = { FORMAT_HYBRID_PTR(in_tx), FORMAT_HYBRID_PTR(in_tx_cp), FORMAT_HYBRID_PTR(offcore_rsp), FORMAT_HYBRID_PTR(ldlat), FORMAT_HYBRID_PTR(frontend), NULL, }; static struct attribute *adl_hybrid_extra_attr[] = { FORMAT_HYBRID_PTR(offcore_rsp), FORMAT_HYBRID_PTR(ldlat), FORMAT_HYBRID_PTR(frontend), NULL, }; static bool is_attr_for_this_pmu(struct kobject *kobj, struct attribute *attr) { struct device *dev = kobj_to_dev(kobj); struct x86_hybrid_pmu *pmu = container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu); struct perf_pmu_events_hybrid_attr *pmu_attr = container_of(attr, struct perf_pmu_events_hybrid_attr, attr.attr); return pmu->cpu_type & pmu_attr->pmu_type; } static umode_t hybrid_events_is_visible(struct kobject *kobj, struct attribute *attr, int i) { return is_attr_for_this_pmu(kobj, attr) ? attr->mode : 0; } static inline int hybrid_find_supported_cpu(struct x86_hybrid_pmu *pmu) { int cpu = cpumask_first(&pmu->supported_cpus); return (cpu >= nr_cpu_ids) ? -1 : cpu; } static umode_t hybrid_tsx_is_visible(struct kobject *kobj, struct attribute *attr, int i) { struct device *dev = kobj_to_dev(kobj); struct x86_hybrid_pmu *pmu = container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu); int cpu = hybrid_find_supported_cpu(pmu); return (cpu >= 0) && is_attr_for_this_pmu(kobj, attr) && cpu_has(&cpu_data(cpu), X86_FEATURE_RTM) ? attr->mode : 0; } static umode_t hybrid_format_is_visible(struct kobject *kobj, struct attribute *attr, int i) { struct device *dev = kobj_to_dev(kobj); struct x86_hybrid_pmu *pmu = container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu); struct perf_pmu_format_hybrid_attr *pmu_attr = container_of(attr, struct perf_pmu_format_hybrid_attr, attr.attr); int cpu = hybrid_find_supported_cpu(pmu); return (cpu >= 0) && (pmu->cpu_type & pmu_attr->pmu_type) ? attr->mode : 0; } static struct attribute_group hybrid_group_events_td = { .name = "events", .is_visible = hybrid_events_is_visible, }; static struct attribute_group hybrid_group_events_mem = { .name = "events", .is_visible = hybrid_events_is_visible, }; static struct attribute_group hybrid_group_events_tsx = { .name = "events", .is_visible = hybrid_tsx_is_visible, }; static struct attribute_group hybrid_group_format_extra = { .name = "format", .is_visible = hybrid_format_is_visible, }; static ssize_t intel_hybrid_get_attr_cpus(struct device *dev, struct device_attribute *attr, char *buf) { struct x86_hybrid_pmu *pmu = container_of(dev_get_drvdata(dev), struct x86_hybrid_pmu, pmu); return cpumap_print_to_pagebuf(true, buf, &pmu->supported_cpus); } static DEVICE_ATTR(cpus, S_IRUGO, intel_hybrid_get_attr_cpus, NULL); static struct attribute *intel_hybrid_cpus_attrs[] = { &dev_attr_cpus.attr, NULL, }; static struct attribute_group hybrid_group_cpus = { .attrs = intel_hybrid_cpus_attrs, }; static const struct attribute_group *hybrid_attr_update[] = { &hybrid_group_events_td, &hybrid_group_events_mem, &hybrid_group_events_tsx, &group_caps_gen, &group_caps_lbr, &hybrid_group_format_extra, &group_default, &hybrid_group_cpus, NULL, }; static struct attribute *empty_attrs; static void intel_pmu_check_num_counters(int *num_counters, int *num_counters_fixed, u64 *intel_ctrl, u64 fixed_mask) { if (*num_counters > INTEL_PMC_MAX_GENERIC) { WARN(1, KERN_ERR "hw perf events %d > max(%d), clipping!", *num_counters, INTEL_PMC_MAX_GENERIC); *num_counters = INTEL_PMC_MAX_GENERIC; } *intel_ctrl = (1ULL << *num_counters) - 1; if (*num_counters_fixed > INTEL_PMC_MAX_FIXED) { WARN(1, KERN_ERR "hw perf events fixed %d > max(%d), clipping!", *num_counters_fixed, INTEL_PMC_MAX_FIXED); *num_counters_fixed = INTEL_PMC_MAX_FIXED; } *intel_ctrl |= fixed_mask << INTEL_PMC_IDX_FIXED; } static void intel_pmu_check_event_constraints(struct event_constraint *event_constraints, int num_counters, int num_counters_fixed, u64 intel_ctrl) { struct event_constraint *c; if (!event_constraints) return; /* * event on fixed counter2 (REF_CYCLES) only works on this * counter, so do not extend mask to generic counters */ for_each_event_constraint(c, event_constraints) { /* * Don't extend the topdown slots and metrics * events to the generic counters. */ if (c->idxmsk64 & INTEL_PMC_MSK_TOPDOWN) { /* * Disable topdown slots and metrics events, * if slots event is not in CPUID. */ if (!(INTEL_PMC_MSK_FIXED_SLOTS & intel_ctrl)) c->idxmsk64 = 0; c->weight = hweight64(c->idxmsk64); continue; } if (c->cmask == FIXED_EVENT_FLAGS) { /* Disabled fixed counters which are not in CPUID */ c->idxmsk64 &= intel_ctrl; /* * Don't extend the pseudo-encoding to the * generic counters */ if (!use_fixed_pseudo_encoding(c->code)) c->idxmsk64 |= (1ULL << num_counters) - 1; } c->idxmsk64 &= ~(~0ULL << (INTEL_PMC_IDX_FIXED + num_counters_fixed)); c->weight = hweight64(c->idxmsk64); } } static void intel_pmu_check_extra_regs(struct extra_reg *extra_regs) { struct extra_reg *er; /* * Access extra MSR may cause #GP under certain circumstances. * E.g. KVM doesn't support offcore event * Check all extra_regs here. */ if (!extra_regs) return; for (er = extra_regs; er->msr; er++) { er->extra_msr_access = check_msr(er->msr, 0x11UL); /* Disable LBR select mapping */ if ((er->idx == EXTRA_REG_LBR) && !er->extra_msr_access) x86_pmu.lbr_sel_map = NULL; } } static void intel_pmu_check_hybrid_pmus(u64 fixed_mask) { struct x86_hybrid_pmu *pmu; int i; for (i = 0; i < x86_pmu.num_hybrid_pmus; i++) { pmu = &x86_pmu.hybrid_pmu[i]; intel_pmu_check_num_counters(&pmu->num_counters, &pmu->num_counters_fixed, &pmu->intel_ctrl, fixed_mask); if (pmu->intel_cap.perf_metrics) { pmu->intel_ctrl |= 1ULL << GLOBAL_CTRL_EN_PERF_METRICS; pmu->intel_ctrl |= INTEL_PMC_MSK_FIXED_SLOTS; } if (pmu->intel_cap.pebs_output_pt_available) pmu->pmu.capabilities |= PERF_PMU_CAP_AUX_OUTPUT; intel_pmu_check_event_constraints(pmu->event_constraints, pmu->num_counters, pmu->num_counters_fixed, pmu->intel_ctrl); intel_pmu_check_extra_regs(pmu->extra_regs); } } __init int intel_pmu_init(void) { struct attribute **extra_skl_attr = &empty_attrs; struct attribute **extra_attr = &empty_attrs; struct attribute **td_attr = &empty_attrs; struct attribute **mem_attr = &empty_attrs; struct attribute **tsx_attr = &empty_attrs; union cpuid10_edx edx; union cpuid10_eax eax; union cpuid10_ebx ebx; unsigned int fixed_mask; bool pmem = false; int version, i; char *name; struct x86_hybrid_pmu *pmu; if (!cpu_has(&boot_cpu_data, X86_FEATURE_ARCH_PERFMON)) { switch (boot_cpu_data.x86) { case 0x6: return p6_pmu_init(); case 0xb: return knc_pmu_init(); case 0xf: return p4_pmu_init(); } return -ENODEV; } /* * Check whether the Architectural PerfMon supports * Branch Misses Retired hw_event or not. */ cpuid(10, &eax.full, &ebx.full, &fixed_mask, &edx.full); if (eax.split.mask_length < ARCH_PERFMON_EVENTS_COUNT) return -ENODEV; version = eax.split.version_id; if (version < 2) x86_pmu = core_pmu; else x86_pmu = intel_pmu; x86_pmu.version = version; x86_pmu.num_counters = eax.split.num_counters; x86_pmu.cntval_bits = eax.split.bit_width; x86_pmu.cntval_mask = (1ULL << eax.split.bit_width) - 1; x86_pmu.events_maskl = ebx.full; x86_pmu.events_mask_len = eax.split.mask_length; x86_pmu.max_pebs_events = min_t(unsigned, MAX_PEBS_EVENTS, x86_pmu.num_counters); x86_pmu.pebs_capable = PEBS_COUNTER_MASK; /* * Quirk: v2 perfmon does not report fixed-purpose events, so * assume at least 3 events, when not running in a hypervisor: */ if (version > 1 && version < 5) { int assume = 3 * !boot_cpu_has(X86_FEATURE_HYPERVISOR); x86_pmu.num_counters_fixed = max((int)edx.split.num_counters_fixed, assume); fixed_mask = (1L << x86_pmu.num_counters_fixed) - 1; } else if (version >= 5) x86_pmu.num_counters_fixed = fls(fixed_mask); if (boot_cpu_has(X86_FEATURE_PDCM)) { u64 capabilities; rdmsrl(MSR_IA32_PERF_CAPABILITIES, capabilities); x86_pmu.intel_cap.capabilities = capabilities; } if (x86_pmu.intel_cap.lbr_format == LBR_FORMAT_32) { x86_pmu.lbr_reset = intel_pmu_lbr_reset_32; x86_pmu.lbr_read = intel_pmu_lbr_read_32; } if (boot_cpu_has(X86_FEATURE_ARCH_LBR)) intel_pmu_arch_lbr_init(); intel_ds_init(); x86_add_quirk(intel_arch_events_quirk); /* Install first, so it runs last */ if (version >= 5) { x86_pmu.intel_cap.anythread_deprecated = edx.split.anythread_deprecated; if (x86_pmu.intel_cap.anythread_deprecated) pr_cont(" AnyThread deprecated, "); } /* * Install the hw-cache-events table: */ switch (boot_cpu_data.x86_model) { case INTEL_FAM6_CORE_YONAH: pr_cont("Core events, "); name = "core"; break; case INTEL_FAM6_CORE2_MEROM: x86_add_quirk(intel_clovertown_quirk); fallthrough; case INTEL_FAM6_CORE2_MEROM_L: case INTEL_FAM6_CORE2_PENRYN: case INTEL_FAM6_CORE2_DUNNINGTON: memcpy(hw_cache_event_ids, core2_hw_cache_event_ids, sizeof(hw_cache_event_ids)); intel_pmu_lbr_init_core(); x86_pmu.event_constraints = intel_core2_event_constraints; x86_pmu.pebs_constraints = intel_core2_pebs_event_constraints; pr_cont("Core2 events, "); name = "core2"; break; case INTEL_FAM6_NEHALEM: case INTEL_FAM6_NEHALEM_EP: case INTEL_FAM6_NEHALEM_EX: memcpy(hw_cache_event_ids, nehalem_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, nehalem_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_nhm(); x86_pmu.event_constraints = intel_nehalem_event_constraints; x86_pmu.pebs_constraints = intel_nehalem_pebs_event_constraints; x86_pmu.enable_all = intel_pmu_nhm_enable_all; x86_pmu.extra_regs = intel_nehalem_extra_regs; x86_pmu.limit_period = nhm_limit_period; mem_attr = nhm_mem_events_attrs; /* UOPS_ISSUED.STALLED_CYCLES */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1); intel_pmu_pebs_data_source_nhm(); x86_add_quirk(intel_nehalem_quirk); x86_pmu.pebs_no_tlb = 1; extra_attr = nhm_format_attr; pr_cont("Nehalem events, "); name = "nehalem"; break; case INTEL_FAM6_ATOM_BONNELL: case INTEL_FAM6_ATOM_BONNELL_MID: case INTEL_FAM6_ATOM_SALTWELL: case INTEL_FAM6_ATOM_SALTWELL_MID: case INTEL_FAM6_ATOM_SALTWELL_TABLET: memcpy(hw_cache_event_ids, atom_hw_cache_event_ids, sizeof(hw_cache_event_ids)); intel_pmu_lbr_init_atom(); x86_pmu.event_constraints = intel_gen_event_constraints; x86_pmu.pebs_constraints = intel_atom_pebs_event_constraints; x86_pmu.pebs_aliases = intel_pebs_aliases_core2; pr_cont("Atom events, "); name = "bonnell"; break; case INTEL_FAM6_ATOM_SILVERMONT: case INTEL_FAM6_ATOM_SILVERMONT_D: case INTEL_FAM6_ATOM_SILVERMONT_MID: case INTEL_FAM6_ATOM_AIRMONT: case INTEL_FAM6_ATOM_AIRMONT_MID: memcpy(hw_cache_event_ids, slm_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, slm_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_slm(); x86_pmu.event_constraints = intel_slm_event_constraints; x86_pmu.pebs_constraints = intel_slm_pebs_event_constraints; x86_pmu.extra_regs = intel_slm_extra_regs; x86_pmu.flags |= PMU_FL_HAS_RSP_1; td_attr = slm_events_attrs; extra_attr = slm_format_attr; pr_cont("Silvermont events, "); name = "silvermont"; break; case INTEL_FAM6_ATOM_GOLDMONT: case INTEL_FAM6_ATOM_GOLDMONT_D: 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, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_skl(); x86_pmu.event_constraints = intel_slm_event_constraints; x86_pmu.pebs_constraints = intel_glm_pebs_event_constraints; x86_pmu.extra_regs = intel_glm_extra_regs; /* * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS * for precise cycles. * :pp is identical to :ppp */ x86_pmu.pebs_aliases = NULL; x86_pmu.pebs_prec_dist = true; x86_pmu.lbr_pt_coexist = true; x86_pmu.flags |= PMU_FL_HAS_RSP_1; td_attr = glm_events_attrs; extra_attr = slm_format_attr; pr_cont("Goldmont events, "); name = "goldmont"; break; case INTEL_FAM6_ATOM_GOLDMONT_PLUS: 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, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_skl(); x86_pmu.event_constraints = intel_slm_event_constraints; x86_pmu.extra_regs = intel_glm_extra_regs; /* * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS * for precise cycles. */ x86_pmu.pebs_aliases = NULL; x86_pmu.pebs_prec_dist = true; x86_pmu.lbr_pt_coexist = true; x86_pmu.pebs_capable = ~0ULL; x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_PEBS_ALL; x86_pmu.get_event_constraints = glp_get_event_constraints; td_attr = glm_events_attrs; /* Goldmont Plus has 4-wide pipeline */ event_attr_td_total_slots_scale_glm.event_str = "4"; extra_attr = slm_format_attr; pr_cont("Goldmont plus events, "); name = "goldmont_plus"; break; case INTEL_FAM6_ATOM_TREMONT_D: case INTEL_FAM6_ATOM_TREMONT: case INTEL_FAM6_ATOM_TREMONT_L: x86_pmu.late_ack = true; memcpy(hw_cache_event_ids, glp_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, tnt_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1; intel_pmu_lbr_init_skl(); x86_pmu.event_constraints = intel_slm_event_constraints; x86_pmu.extra_regs = intel_tnt_extra_regs; /* * It's recommended to use CPU_CLK_UNHALTED.CORE_P + NPEBS * for precise cycles. */ x86_pmu.pebs_aliases = NULL; x86_pmu.pebs_prec_dist = true; x86_pmu.lbr_pt_coexist = true; x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.get_event_constraints = tnt_get_event_constraints; td_attr = tnt_events_attrs; extra_attr = slm_format_attr; pr_cont("Tremont events, "); name = "Tremont"; break; case INTEL_FAM6_ALDERLAKE_N: x86_pmu.mid_ack = true; memcpy(hw_cache_event_ids, glp_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, tnt_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1; x86_pmu.event_constraints = intel_slm_event_constraints; x86_pmu.pebs_constraints = intel_grt_pebs_event_constraints; x86_pmu.extra_regs = intel_grt_extra_regs; x86_pmu.pebs_aliases = NULL; x86_pmu.pebs_prec_dist = true; x86_pmu.pebs_block = true; x86_pmu.lbr_pt_coexist = true; x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_INSTR_LATENCY; intel_pmu_pebs_data_source_grt(); x86_pmu.pebs_latency_data = adl_latency_data_small; x86_pmu.get_event_constraints = tnt_get_event_constraints; x86_pmu.limit_period = spr_limit_period; td_attr = tnt_events_attrs; mem_attr = grt_mem_attrs; extra_attr = nhm_format_attr; pr_cont("Gracemont events, "); name = "gracemont"; break; case INTEL_FAM6_WESTMERE: case INTEL_FAM6_WESTMERE_EP: case INTEL_FAM6_WESTMERE_EX: memcpy(hw_cache_event_ids, westmere_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, nehalem_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_nhm(); x86_pmu.event_constraints = intel_westmere_event_constraints; x86_pmu.enable_all = intel_pmu_nhm_enable_all; x86_pmu.pebs_constraints = intel_westmere_pebs_event_constraints; x86_pmu.extra_regs = intel_westmere_extra_regs; x86_pmu.flags |= PMU_FL_HAS_RSP_1; mem_attr = nhm_mem_events_attrs; /* UOPS_ISSUED.STALLED_CYCLES */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); /* UOPS_EXECUTED.CORE_ACTIVE_CYCLES,c=1,i=1 */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = X86_CONFIG(.event=0xb1, .umask=0x3f, .inv=1, .cmask=1); intel_pmu_pebs_data_source_nhm(); extra_attr = nhm_format_attr; pr_cont("Westmere events, "); name = "westmere"; break; case INTEL_FAM6_SANDYBRIDGE: case INTEL_FAM6_SANDYBRIDGE_X: x86_add_quirk(intel_sandybridge_quirk); x86_add_quirk(intel_ht_bug); memcpy(hw_cache_event_ids, snb_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_snb(); x86_pmu.event_constraints = intel_snb_event_constraints; x86_pmu.pebs_constraints = intel_snb_pebs_event_constraints; x86_pmu.pebs_aliases = intel_pebs_aliases_snb; if (boot_cpu_data.x86_model == INTEL_FAM6_SANDYBRIDGE_X) x86_pmu.extra_regs = intel_snbep_extra_regs; else x86_pmu.extra_regs = intel_snb_extra_regs; /* all extra regs are per-cpu when HT is on */ x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; td_attr = snb_events_attrs; mem_attr = snb_mem_events_attrs; /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); /* UOPS_DISPATCHED.THREAD,c=1,i=1 to count stall cycles*/ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_BACKEND] = X86_CONFIG(.event=0xb1, .umask=0x01, .inv=1, .cmask=1); extra_attr = nhm_format_attr; pr_cont("SandyBridge events, "); name = "sandybridge"; break; case INTEL_FAM6_IVYBRIDGE: case INTEL_FAM6_IVYBRIDGE_X: x86_add_quirk(intel_ht_bug); memcpy(hw_cache_event_ids, snb_hw_cache_event_ids, sizeof(hw_cache_event_ids)); /* dTLB-load-misses on IVB is different than SNB */ hw_cache_event_ids[C(DTLB)][C(OP_READ)][C(RESULT_MISS)] = 0x8108; /* DTLB_LOAD_MISSES.DEMAND_LD_MISS_CAUSES_A_WALK */ memcpy(hw_cache_extra_regs, snb_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_snb(); x86_pmu.event_constraints = intel_ivb_event_constraints; x86_pmu.pebs_constraints = intel_ivb_pebs_event_constraints; x86_pmu.pebs_aliases = intel_pebs_aliases_ivb; x86_pmu.pebs_prec_dist = true; if (boot_cpu_data.x86_model == INTEL_FAM6_IVYBRIDGE_X) x86_pmu.extra_regs = intel_snbep_extra_regs; else x86_pmu.extra_regs = intel_snb_extra_regs; /* all extra regs are per-cpu when HT is on */ x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; td_attr = snb_events_attrs; mem_attr = snb_mem_events_attrs; /* UOPS_ISSUED.ANY,c=1,i=1 to count stall cycles */ intel_perfmon_event_map[PERF_COUNT_HW_STALLED_CYCLES_FRONTEND] = X86_CONFIG(.event=0x0e, .umask=0x01, .inv=1, .cmask=1); extra_attr = nhm_format_attr; pr_cont("IvyBridge events, "); name = "ivybridge"; break; case INTEL_FAM6_HASWELL: case INTEL_FAM6_HASWELL_X: case INTEL_FAM6_HASWELL_L: case INTEL_FAM6_HASWELL_G: 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)); intel_pmu_lbr_init_hsw(); x86_pmu.event_constraints = intel_hsw_event_constraints; x86_pmu.pebs_constraints = intel_hsw_pebs_event_constraints; x86_pmu.extra_regs = intel_snbep_extra_regs; x86_pmu.pebs_aliases = intel_pebs_aliases_ivb; x86_pmu.pebs_prec_dist = true; /* all extra regs are per-cpu when HT is on */ x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; x86_pmu.hw_config = hsw_hw_config; x86_pmu.get_event_constraints = hsw_get_event_constraints; x86_pmu.lbr_double_abort = true; extra_attr = boot_cpu_has(X86_FEATURE_RTM) ? hsw_format_attr : nhm_format_attr; td_attr = hsw_events_attrs; mem_attr = hsw_mem_events_attrs; tsx_attr = hsw_tsx_events_attrs; pr_cont("Haswell events, "); name = "haswell"; break; case INTEL_FAM6_BROADWELL: case INTEL_FAM6_BROADWELL_D: case INTEL_FAM6_BROADWELL_G: 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)); /* L3_MISS_LOCAL_DRAM is BIT(26) in Broadwell */ hw_cache_extra_regs[C(LL)][C(OP_READ)][C(RESULT_MISS)] = HSW_DEMAND_READ | BDW_L3_MISS|HSW_SNOOP_DRAM; hw_cache_extra_regs[C(LL)][C(OP_WRITE)][C(RESULT_MISS)] = HSW_DEMAND_WRITE|BDW_L3_MISS| HSW_SNOOP_DRAM; hw_cache_extra_regs[C(NODE)][C(OP_READ)][C(RESULT_ACCESS)] = HSW_DEMAND_READ| BDW_L3_MISS_LOCAL|HSW_SNOOP_DRAM; hw_cache_extra_regs[C(NODE)][C(OP_WRITE)][C(RESULT_ACCESS)] = HSW_DEMAND_WRITE| BDW_L3_MISS_LOCAL|HSW_SNOOP_DRAM; intel_pmu_lbr_init_hsw(); x86_pmu.event_constraints = intel_bdw_event_constraints; x86_pmu.pebs_constraints = intel_bdw_pebs_event_constraints; x86_pmu.extra_regs = intel_snbep_extra_regs; x86_pmu.pebs_aliases = intel_pebs_aliases_ivb; x86_pmu.pebs_prec_dist = true; /* all extra regs are per-cpu when HT is on */ x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; x86_pmu.hw_config = hsw_hw_config; x86_pmu.get_event_constraints = hsw_get_event_constraints; x86_pmu.limit_period = bdw_limit_period; extra_attr = boot_cpu_has(X86_FEATURE_RTM) ? hsw_format_attr : nhm_format_attr; td_attr = hsw_events_attrs; mem_attr = hsw_mem_events_attrs; tsx_attr = hsw_tsx_events_attrs; pr_cont("Broadwell events, "); name = "broadwell"; break; case INTEL_FAM6_XEON_PHI_KNL: case INTEL_FAM6_XEON_PHI_KNM: memcpy(hw_cache_event_ids, slm_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, knl_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); intel_pmu_lbr_init_knl(); x86_pmu.event_constraints = intel_slm_event_constraints; x86_pmu.pebs_constraints = intel_slm_pebs_event_constraints; x86_pmu.extra_regs = intel_knl_extra_regs; /* all extra regs are per-cpu when HT is on */ x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; extra_attr = slm_format_attr; pr_cont("Knights Landing/Mill events, "); name = "knights-landing"; break; case INTEL_FAM6_SKYLAKE_X: pmem = true; fallthrough; case INTEL_FAM6_SKYLAKE_L: case INTEL_FAM6_SKYLAKE: case INTEL_FAM6_KABYLAKE_L: case INTEL_FAM6_KABYLAKE: case INTEL_FAM6_COMETLAKE_L: case INTEL_FAM6_COMETLAKE: 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)); intel_pmu_lbr_init_skl(); /* INT_MISC.RECOVERY_CYCLES has umask 1 in Skylake */ event_attr_td_recovery_bubbles.event_str_noht = "event=0xd,umask=0x1,cmask=1"; event_attr_td_recovery_bubbles.event_str_ht = "event=0xd,umask=0x1,cmask=1,any=1"; x86_pmu.event_constraints = intel_skl_event_constraints; x86_pmu.pebs_constraints = intel_skl_pebs_event_constraints; x86_pmu.extra_regs = intel_skl_extra_regs; x86_pmu.pebs_aliases = intel_pebs_aliases_skl; x86_pmu.pebs_prec_dist = true; /* all extra regs are per-cpu when HT is on */ x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; x86_pmu.hw_config = hsw_hw_config; x86_pmu.get_event_constraints = hsw_get_event_constraints; extra_attr = boot_cpu_has(X86_FEATURE_RTM) ? hsw_format_attr : nhm_format_attr; extra_skl_attr = skl_format_attr; td_attr = hsw_events_attrs; mem_attr = hsw_mem_events_attrs; tsx_attr = hsw_tsx_events_attrs; intel_pmu_pebs_data_source_skl(pmem); /* * Processors with CPUID.RTM_ALWAYS_ABORT have TSX deprecated by default. * TSX force abort hooks are not required on these systems. Only deploy * workaround when microcode has not enabled X86_FEATURE_RTM_ALWAYS_ABORT. */ if (boot_cpu_has(X86_FEATURE_TSX_FORCE_ABORT) && !boot_cpu_has(X86_FEATURE_RTM_ALWAYS_ABORT)) { x86_pmu.flags |= PMU_FL_TFA; x86_pmu.get_event_constraints = tfa_get_event_constraints; x86_pmu.enable_all = intel_tfa_pmu_enable_all; x86_pmu.commit_scheduling = intel_tfa_commit_scheduling; } pr_cont("Skylake events, "); name = "skylake"; break; case INTEL_FAM6_ICELAKE_X: case INTEL_FAM6_ICELAKE_D: x86_pmu.pebs_ept = 1; pmem = true; fallthrough; case INTEL_FAM6_ICELAKE_L: case INTEL_FAM6_ICELAKE: case INTEL_FAM6_TIGERLAKE_L: case INTEL_FAM6_TIGERLAKE: case INTEL_FAM6_ROCKETLAKE: 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)); hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1; intel_pmu_lbr_init_skl(); x86_pmu.event_constraints = intel_icl_event_constraints; x86_pmu.pebs_constraints = intel_icl_pebs_event_constraints; x86_pmu.extra_regs = intel_icl_extra_regs; x86_pmu.pebs_aliases = NULL; x86_pmu.pebs_prec_dist = true; x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; x86_pmu.hw_config = hsw_hw_config; x86_pmu.get_event_constraints = icl_get_event_constraints; extra_attr = boot_cpu_has(X86_FEATURE_RTM) ? hsw_format_attr : nhm_format_attr; extra_skl_attr = skl_format_attr; mem_attr = icl_events_attrs; td_attr = icl_td_events_attrs; tsx_attr = icl_tsx_events_attrs; x86_pmu.rtm_abort_event = X86_CONFIG(.event=0xc9, .umask=0x04); x86_pmu.lbr_pt_coexist = true; intel_pmu_pebs_data_source_skl(pmem); x86_pmu.num_topdown_events = 4; static_call_update(intel_pmu_update_topdown_event, &icl_update_topdown_event); static_call_update(intel_pmu_set_topdown_event_period, &icl_set_topdown_event_period); pr_cont("Icelake events, "); name = "icelake"; break; case INTEL_FAM6_SAPPHIRERAPIDS_X: case INTEL_FAM6_EMERALDRAPIDS_X: pmem = true; x86_pmu.late_ack = true; memcpy(hw_cache_event_ids, spr_hw_cache_event_ids, sizeof(hw_cache_event_ids)); memcpy(hw_cache_extra_regs, spr_hw_cache_extra_regs, sizeof(hw_cache_extra_regs)); x86_pmu.event_constraints = intel_spr_event_constraints; x86_pmu.pebs_constraints = intel_spr_pebs_event_constraints; x86_pmu.extra_regs = intel_spr_extra_regs; x86_pmu.limit_period = spr_limit_period; x86_pmu.pebs_aliases = NULL; x86_pmu.pebs_prec_dist = true; x86_pmu.pebs_block = true; x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; x86_pmu.flags |= PMU_FL_INSTR_LATENCY; x86_pmu.flags |= PMU_FL_MEM_LOADS_AUX; x86_pmu.hw_config = hsw_hw_config; x86_pmu.get_event_constraints = spr_get_event_constraints; extra_attr = boot_cpu_has(X86_FEATURE_RTM) ? hsw_format_attr : nhm_format_attr; extra_skl_attr = skl_format_attr; mem_attr = spr_events_attrs; td_attr = spr_td_events_attrs; tsx_attr = spr_tsx_events_attrs; x86_pmu.rtm_abort_event = X86_CONFIG(.event=0xc9, .umask=0x04); x86_pmu.lbr_pt_coexist = true; intel_pmu_pebs_data_source_skl(pmem); x86_pmu.num_topdown_events = 8; static_call_update(intel_pmu_update_topdown_event, &icl_update_topdown_event); static_call_update(intel_pmu_set_topdown_event_period, &icl_set_topdown_event_period); pr_cont("Sapphire Rapids events, "); name = "sapphire_rapids"; break; case INTEL_FAM6_ALDERLAKE: case INTEL_FAM6_ALDERLAKE_L: case INTEL_FAM6_RAPTORLAKE: case INTEL_FAM6_RAPTORLAKE_P: case INTEL_FAM6_RAPTORLAKE_S: /* * Alder Lake has 2 types of CPU, core and atom. * * Initialize the common PerfMon capabilities here. */ x86_pmu.hybrid_pmu = kcalloc(X86_HYBRID_NUM_PMUS, sizeof(struct x86_hybrid_pmu), GFP_KERNEL); if (!x86_pmu.hybrid_pmu) return -ENOMEM; static_branch_enable(&perf_is_hybrid); x86_pmu.num_hybrid_pmus = X86_HYBRID_NUM_PMUS; x86_pmu.pebs_aliases = NULL; x86_pmu.pebs_prec_dist = true; x86_pmu.pebs_block = true; x86_pmu.flags |= PMU_FL_HAS_RSP_1; x86_pmu.flags |= PMU_FL_NO_HT_SHARING; x86_pmu.flags |= PMU_FL_INSTR_LATENCY; x86_pmu.flags |= PMU_FL_MEM_LOADS_AUX; x86_pmu.lbr_pt_coexist = true; intel_pmu_pebs_data_source_adl(); x86_pmu.pebs_latency_data = adl_latency_data_small; x86_pmu.num_topdown_events = 8; static_call_update(intel_pmu_update_topdown_event, &adl_update_topdown_event); static_call_update(intel_pmu_set_topdown_event_period, &adl_set_topdown_event_period); x86_pmu.filter_match = intel_pmu_filter_match; x86_pmu.get_event_constraints = adl_get_event_constraints; x86_pmu.hw_config = adl_hw_config; x86_pmu.limit_period = spr_limit_period; x86_pmu.get_hybrid_cpu_type = adl_get_hybrid_cpu_type; /* * The rtm_abort_event is used to check whether to enable GPRs * for the RTM abort event. Atom doesn't have the RTM abort * event. There is no harmful to set it in the common * x86_pmu.rtm_abort_event. */ x86_pmu.rtm_abort_event = X86_CONFIG(.event=0xc9, .umask=0x04); td_attr = adl_hybrid_events_attrs; mem_attr = adl_hybrid_mem_attrs; tsx_attr = adl_hybrid_tsx_attrs; extra_attr = boot_cpu_has(X86_FEATURE_RTM) ? adl_hybrid_extra_attr_rtm : adl_hybrid_extra_attr; /* Initialize big core specific PerfMon capabilities.*/ pmu = &x86_pmu.hybrid_pmu[X86_HYBRID_PMU_CORE_IDX]; pmu->name = "cpu_core"; pmu->cpu_type = hybrid_big; pmu->late_ack = true; if (cpu_feature_enabled(X86_FEATURE_HYBRID_CPU)) { pmu->num_counters = x86_pmu.num_counters + 2; pmu->num_counters_fixed = x86_pmu.num_counters_fixed + 1; } else { pmu->num_counters = x86_pmu.num_counters; pmu->num_counters_fixed = x86_pmu.num_counters_fixed; } /* * Quirk: For some Alder Lake machine, when all E-cores are disabled in * a BIOS, the leaf 0xA will enumerate all counters of P-cores. However, * the X86_FEATURE_HYBRID_CPU is still set. The above codes will * mistakenly add extra counters for P-cores. Correct the number of * counters here. */ if ((pmu->num_counters > 8) || (pmu->num_counters_fixed > 4)) { pmu->num_counters = x86_pmu.num_counters; pmu->num_counters_fixed = x86_pmu.num_counters_fixed; } pmu->max_pebs_events = min_t(unsigned, MAX_PEBS_EVENTS, pmu->num_counters); pmu->unconstrained = (struct event_constraint) __EVENT_CONSTRAINT(0, (1ULL << pmu->num_counters) - 1, 0, pmu->num_counters, 0, 0); pmu->intel_cap.capabilities = x86_pmu.intel_cap.capabilities; pmu->intel_cap.perf_metrics = 1; pmu->intel_cap.pebs_output_pt_available = 0; memcpy(pmu->hw_cache_event_ids, spr_hw_cache_event_ids, sizeof(pmu->hw_cache_event_ids)); memcpy(pmu->hw_cache_extra_regs, spr_hw_cache_extra_regs, sizeof(pmu->hw_cache_extra_regs)); pmu->event_constraints = intel_spr_event_constraints; pmu->pebs_constraints = intel_spr_pebs_event_constraints; pmu->extra_regs = intel_spr_extra_regs; /* Initialize Atom core specific PerfMon capabilities.*/ pmu = &x86_pmu.hybrid_pmu[X86_HYBRID_PMU_ATOM_IDX]; pmu->name = "cpu_atom"; pmu->cpu_type = hybrid_small; pmu->mid_ack = true; pmu->num_counters = x86_pmu.num_counters; pmu->num_counters_fixed = x86_pmu.num_counters_fixed; pmu->max_pebs_events = x86_pmu.max_pebs_events; pmu->unconstrained = (struct event_constraint) __EVENT_CONSTRAINT(0, (1ULL << pmu->num_counters) - 1, 0, pmu->num_counters, 0, 0); pmu->intel_cap.capabilities = x86_pmu.intel_cap.capabilities; pmu->intel_cap.perf_metrics = 0; pmu->intel_cap.pebs_output_pt_available = 1; memcpy(pmu->hw_cache_event_ids, glp_hw_cache_event_ids, sizeof(pmu->hw_cache_event_ids)); memcpy(pmu->hw_cache_extra_regs, tnt_hw_cache_extra_regs, sizeof(pmu->hw_cache_extra_regs)); pmu->hw_cache_event_ids[C(ITLB)][C(OP_READ)][C(RESULT_ACCESS)] = -1; pmu->event_constraints = intel_slm_event_constraints; pmu->pebs_constraints = intel_grt_pebs_event_constraints; pmu->extra_regs = intel_grt_extra_regs; pr_cont("Alderlake Hybrid events, "); name = "alderlake_hybrid"; break; default: switch (x86_pmu.version) { case 1: x86_pmu.event_constraints = intel_v1_event_constraints; pr_cont("generic architected perfmon v1, "); name = "generic_arch_v1"; break; case 2: case 3: case 4: /* * default constraints for v2 and up */ x86_pmu.event_constraints = intel_gen_event_constraints; pr_cont("generic architected perfmon, "); name = "generic_arch_v2+"; break; default: /* * The default constraints for v5 and up can support up to * 16 fixed counters. For the fixed counters 4 and later, * the pseudo-encoding is applied. * The constraints may be cut according to the CPUID enumeration * by inserting the EVENT_CONSTRAINT_END. */ if (x86_pmu.num_counters_fixed > INTEL_PMC_MAX_FIXED) x86_pmu.num_counters_fixed = INTEL_PMC_MAX_FIXED; intel_v5_gen_event_constraints[x86_pmu.num_counters_fixed].weight = -1; x86_pmu.event_constraints = intel_v5_gen_event_constraints; pr_cont("generic architected perfmon, "); name = "generic_arch_v5+"; break; } } snprintf(pmu_name_str, sizeof(pmu_name_str), "%s", name); if (!is_hybrid()) { group_events_td.attrs = td_attr; group_events_mem.attrs = mem_attr; group_events_tsx.attrs = tsx_attr; group_format_extra.attrs = extra_attr; group_format_extra_skl.attrs = extra_skl_attr; x86_pmu.attr_update = attr_update; } else { hybrid_group_events_td.attrs = td_attr; hybrid_group_events_mem.attrs = mem_attr; hybrid_group_events_tsx.attrs = tsx_attr; hybrid_group_format_extra.attrs = extra_attr; x86_pmu.attr_update = hybrid_attr_update; } intel_pmu_check_num_counters(&x86_pmu.num_counters, &x86_pmu.num_counters_fixed, &x86_pmu.intel_ctrl, (u64)fixed_mask); /* AnyThread may be deprecated on arch perfmon v5 or later */ if (x86_pmu.intel_cap.anythread_deprecated) x86_pmu.format_attrs = intel_arch_formats_attr; intel_pmu_check_event_constraints(x86_pmu.event_constraints, x86_pmu.num_counters, x86_pmu.num_counters_fixed, x86_pmu.intel_ctrl); /* * Access LBR MSR may cause #GP under certain circumstances. * Check all LBR MSR here. * Disable LBR access if any LBR MSRs can not be accessed. */ if (x86_pmu.lbr_tos && !check_msr(x86_pmu.lbr_tos, 0x3UL)) x86_pmu.lbr_nr = 0; for (i = 0; i < x86_pmu.lbr_nr; i++) { if (!(check_msr(x86_pmu.lbr_from + i, 0xffffUL) && check_msr(x86_pmu.lbr_to + i, 0xffffUL))) x86_pmu.lbr_nr = 0; } if (x86_pmu.lbr_nr) { intel_pmu_lbr_init(); pr_cont("%d-deep LBR, ", x86_pmu.lbr_nr); /* only support branch_stack snapshot for perfmon >= v2 */ if (x86_pmu.disable_all == intel_pmu_disable_all) { if (boot_cpu_has(X86_FEATURE_ARCH_LBR)) { static_call_update(perf_snapshot_branch_stack, intel_pmu_snapshot_arch_branch_stack); } else { static_call_update(perf_snapshot_branch_stack, intel_pmu_snapshot_branch_stack); } } } intel_pmu_check_extra_regs(x86_pmu.extra_regs); /* Support full width counters using alternative MSR range */ if (x86_pmu.intel_cap.full_width_write) { x86_pmu.max_period = x86_pmu.cntval_mask >> 1; x86_pmu.perfctr = MSR_IA32_PMC0; pr_cont("full-width counters, "); } if (!is_hybrid() && x86_pmu.intel_cap.perf_metrics) x86_pmu.intel_ctrl |= 1ULL << GLOBAL_CTRL_EN_PERF_METRICS; if (is_hybrid()) intel_pmu_check_hybrid_pmus((u64)fixed_mask); intel_aux_output_init(); return 0; } /* * HT bug: phase 2 init * Called once we have valid topology information to check * whether or not HT is enabled * If HT is off, then we disable the workaround */ static __init int fixup_ht_bug(void) { int c; /* * problem not present on this CPU model, nothing to do */ if (!(x86_pmu.flags & PMU_FL_EXCL_ENABLED)) return 0; if (topology_max_smt_threads() > 1) { pr_info("PMU erratum BJ122, BV98, HSD29 worked around, HT is on\n"); return 0; } cpus_read_lock(); hardlockup_detector_perf_stop(); x86_pmu.flags &= ~(PMU_FL_EXCL_CNTRS | PMU_FL_EXCL_ENABLED); x86_pmu.start_scheduling = NULL; x86_pmu.commit_scheduling = NULL; x86_pmu.stop_scheduling = NULL; hardlockup_detector_perf_restart(); for_each_online_cpu(c) free_excl_cntrs(&per_cpu(cpu_hw_events, c)); cpus_read_unlock(); pr_info("PMU erratum BJ122, BV98, HSD29 workaround disabled, HT off\n"); return 0; } subsys_initcall(fixup_ht_bug) |