2 * Performance events x86 architecture header
4 * Copyright (C) 2008 Thomas Gleixner <tglx@linutronix.de>
5 * Copyright (C) 2008-2009 Red Hat, Inc., Ingo Molnar
6 * Copyright (C) 2009 Jaswinder Singh Rajput
7 * Copyright (C) 2009 Advanced Micro Devices, Inc., Robert Richter
8 * Copyright (C) 2008-2009 Red Hat, Inc., Peter Zijlstra
9 * Copyright (C) 2009 Intel Corporation, <markus.t.metzger@intel.com>
10 * Copyright (C) 2009 Google, Inc., Stephane Eranian
12 * For licencing details see kernel-base/COPYING
15 #include <linux/perf_event.h>
17 #include <asm/fpu/xstate.h>
18 #include <asm/intel_ds.h>
21 /* To enable MSR tracing please use the generic trace points. */
25 * register -------------------------------
26 * | HT | no HT | HT | no HT |
27 *-----------------------------------------
28 * offcore | core | core | cpu | core |
29 * lbr_sel | core | core | cpu | core |
30 * ld_lat | cpu | core | cpu | core |
31 *-----------------------------------------
33 * Given that there is a small number of shared regs,
34 * we can pre-allocate their slot in the per-cpu
35 * per-core reg tables.
38 EXTRA_REG_NONE = -1, /* not used */
40 EXTRA_REG_RSP_0 = 0, /* offcore_response_0 */
41 EXTRA_REG_RSP_1 = 1, /* offcore_response_1 */
42 EXTRA_REG_LBR = 2, /* lbr_select */
43 EXTRA_REG_LDLAT = 3, /* ld_lat_threshold */
44 EXTRA_REG_FE = 4, /* fe_* */
46 EXTRA_REG_MAX /* number of entries needed */
49 struct event_constraint {
51 unsigned long idxmsk[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
62 static inline bool constraint_match(struct event_constraint *c, u64 ecode)
64 return ((ecode & c->cmask) - c->code) <= (u64)c->size;
68 * struct hw_perf_event.flags flags
70 #define PERF_X86_EVENT_PEBS_LDLAT 0x0001 /* ld+ldlat data address sampling */
71 #define PERF_X86_EVENT_PEBS_ST 0x0002 /* st data address sampling */
72 #define PERF_X86_EVENT_PEBS_ST_HSW 0x0004 /* haswell style datala, store */
73 #define PERF_X86_EVENT_PEBS_LD_HSW 0x0008 /* haswell style datala, load */
74 #define PERF_X86_EVENT_PEBS_NA_HSW 0x0010 /* haswell style datala, unknown */
75 #define PERF_X86_EVENT_EXCL 0x0020 /* HT exclusivity on counter */
76 #define PERF_X86_EVENT_DYNAMIC 0x0040 /* dynamic alloc'd constraint */
78 #define PERF_X86_EVENT_EXCL_ACCT 0x0100 /* accounted EXCL event */
79 #define PERF_X86_EVENT_AUTO_RELOAD 0x0200 /* use PEBS auto-reload */
80 #define PERF_X86_EVENT_LARGE_PEBS 0x0400 /* use large PEBS */
81 #define PERF_X86_EVENT_PEBS_VIA_PT 0x0800 /* use PT buffer for PEBS */
82 #define PERF_X86_EVENT_PAIR 0x1000 /* Large Increment per Cycle */
83 #define PERF_X86_EVENT_LBR_SELECT 0x2000 /* Save/Restore MSR_LBR_SELECT */
84 #define PERF_X86_EVENT_TOPDOWN 0x4000 /* Count Topdown slots/metrics events */
85 #define PERF_X86_EVENT_PEBS_STLAT 0x8000 /* st+stlat data address sampling */
87 static inline bool is_topdown_count(struct perf_event *event)
89 return event->hw.flags & PERF_X86_EVENT_TOPDOWN;
92 static inline bool is_metric_event(struct perf_event *event)
94 u64 config = event->attr.config;
96 return ((config & ARCH_PERFMON_EVENTSEL_EVENT) == 0) &&
97 ((config & INTEL_ARCH_EVENT_MASK) >= INTEL_TD_METRIC_RETIRING) &&
98 ((config & INTEL_ARCH_EVENT_MASK) <= INTEL_TD_METRIC_MAX);
101 static inline bool is_slots_event(struct perf_event *event)
103 return (event->attr.config & INTEL_ARCH_EVENT_MASK) == INTEL_TD_SLOTS;
106 static inline bool is_topdown_event(struct perf_event *event)
108 return is_metric_event(event) || is_slots_event(event);
112 int nb_id; /* NorthBridge id */
113 int refcnt; /* reference count */
114 struct perf_event *owners[X86_PMC_IDX_MAX];
115 struct event_constraint event_constraints[X86_PMC_IDX_MAX];
118 #define PEBS_COUNTER_MASK ((1ULL << MAX_PEBS_EVENTS) - 1)
119 #define PEBS_PMI_AFTER_EACH_RECORD BIT_ULL(60)
120 #define PEBS_OUTPUT_OFFSET 61
121 #define PEBS_OUTPUT_MASK (3ull << PEBS_OUTPUT_OFFSET)
122 #define PEBS_OUTPUT_PT (1ull << PEBS_OUTPUT_OFFSET)
123 #define PEBS_VIA_PT_MASK (PEBS_OUTPUT_PT | PEBS_PMI_AFTER_EACH_RECORD)
126 * Flags PEBS can handle without an PMI.
128 * TID can only be handled by flushing at context switch.
129 * REGS_USER can be handled for events limited to ring 3.
132 #define LARGE_PEBS_FLAGS \
133 (PERF_SAMPLE_IP | PERF_SAMPLE_TID | PERF_SAMPLE_ADDR | \
134 PERF_SAMPLE_ID | PERF_SAMPLE_CPU | PERF_SAMPLE_STREAM_ID | \
135 PERF_SAMPLE_DATA_SRC | PERF_SAMPLE_IDENTIFIER | \
136 PERF_SAMPLE_TRANSACTION | PERF_SAMPLE_PHYS_ADDR | \
137 PERF_SAMPLE_REGS_INTR | PERF_SAMPLE_REGS_USER | \
138 PERF_SAMPLE_PERIOD | PERF_SAMPLE_CODE_PAGE_SIZE)
140 #define PEBS_GP_REGS \
141 ((1ULL << PERF_REG_X86_AX) | \
142 (1ULL << PERF_REG_X86_BX) | \
143 (1ULL << PERF_REG_X86_CX) | \
144 (1ULL << PERF_REG_X86_DX) | \
145 (1ULL << PERF_REG_X86_DI) | \
146 (1ULL << PERF_REG_X86_SI) | \
147 (1ULL << PERF_REG_X86_SP) | \
148 (1ULL << PERF_REG_X86_BP) | \
149 (1ULL << PERF_REG_X86_IP) | \
150 (1ULL << PERF_REG_X86_FLAGS) | \
151 (1ULL << PERF_REG_X86_R8) | \
152 (1ULL << PERF_REG_X86_R9) | \
153 (1ULL << PERF_REG_X86_R10) | \
154 (1ULL << PERF_REG_X86_R11) | \
155 (1ULL << PERF_REG_X86_R12) | \
156 (1ULL << PERF_REG_X86_R13) | \
157 (1ULL << PERF_REG_X86_R14) | \
158 (1ULL << PERF_REG_X86_R15))
161 * Per register state.
164 raw_spinlock_t lock; /* per-core: protect structure */
165 u64 config; /* extra MSR config */
166 u64 reg; /* extra MSR number */
167 atomic_t ref; /* reference count */
173 * Used to coordinate shared registers between HT threads or
174 * among events on a single PMU.
176 struct intel_shared_regs {
177 struct er_account regs[EXTRA_REG_MAX];
178 int refcnt; /* per-core: #HT threads */
179 unsigned core_id; /* per-core: core id */
182 enum intel_excl_state_type {
183 INTEL_EXCL_UNUSED = 0, /* counter is unused */
184 INTEL_EXCL_SHARED = 1, /* counter can be used by both threads */
185 INTEL_EXCL_EXCLUSIVE = 2, /* counter can be used by one thread only */
188 struct intel_excl_states {
189 enum intel_excl_state_type state[X86_PMC_IDX_MAX];
190 bool sched_started; /* true if scheduling has started */
193 struct intel_excl_cntrs {
196 struct intel_excl_states states[2];
199 u16 has_exclusive[2];
200 u32 exclusive_present;
203 int refcnt; /* per-core: #HT threads */
204 unsigned core_id; /* per-core: core id */
207 struct x86_perf_task_context;
208 #define MAX_LBR_ENTRIES 32
211 LBR_FORMAT_32 = 0x00,
212 LBR_FORMAT_LIP = 0x01,
213 LBR_FORMAT_EIP = 0x02,
214 LBR_FORMAT_EIP_FLAGS = 0x03,
215 LBR_FORMAT_EIP_FLAGS2 = 0x04,
216 LBR_FORMAT_INFO = 0x05,
217 LBR_FORMAT_TIME = 0x06,
218 LBR_FORMAT_INFO2 = 0x07,
219 LBR_FORMAT_MAX_KNOWN = LBR_FORMAT_INFO2,
223 X86_PERF_KFREE_SHARED = 0,
224 X86_PERF_KFREE_EXCL = 1,
228 struct cpu_hw_events {
230 * Generic x86 PMC bits
232 struct perf_event *events[X86_PMC_IDX_MAX]; /* in counter order */
233 unsigned long active_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
234 unsigned long dirty[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
237 int n_events; /* the # of events in the below arrays */
238 int n_added; /* the # last events in the below arrays;
239 they've never been enabled yet */
240 int n_txn; /* the # last events in the below arrays;
241 added in the current transaction */
244 int assign[X86_PMC_IDX_MAX]; /* event to counter assignment */
245 u64 tags[X86_PMC_IDX_MAX];
247 struct perf_event *event_list[X86_PMC_IDX_MAX]; /* in enabled order */
248 struct event_constraint *event_constraint[X86_PMC_IDX_MAX];
250 int n_excl; /* the number of exclusive events */
252 unsigned int txn_flags;
256 * Intel DebugStore bits
258 struct debug_store *ds;
267 /* Current super set of events hardware configuration */
269 u64 active_pebs_data_cfg;
270 int pebs_record_size;
277 struct perf_branch_stack lbr_stack;
278 struct perf_branch_entry lbr_entries[MAX_LBR_ENTRIES];
280 struct er_account *lbr_sel;
281 struct er_account *lbr_ctl;
290 * Intel host/guest exclude bits
292 u64 intel_ctrl_guest_mask;
293 u64 intel_ctrl_host_mask;
294 struct perf_guest_switch_msr guest_switch_msrs[X86_PMC_IDX_MAX];
297 * Intel checkpoint mask
302 * manage shared (per-core, per-cpu) registers
303 * used on Intel NHM/WSM/SNB
305 struct intel_shared_regs *shared_regs;
307 * manage exclusive counter access between hyperthread
309 struct event_constraint *constraint_list; /* in enable order */
310 struct intel_excl_cntrs *excl_cntrs;
311 int excl_thread_id; /* 0 or 1 */
314 * SKL TSX_FORCE_ABORT shadow
321 /* number of accepted metrics events */
327 struct amd_nb *amd_nb;
328 /* Inverted mask of bits to clear in the perf_ctr ctrl registers */
329 u64 perf_ctr_virt_mask;
330 int n_pair; /* Large increment events */
332 void *kfree_on_online[X86_PERF_KFREE_MAX];
337 #define __EVENT_CONSTRAINT_RANGE(c, e, n, m, w, o, f) { \
338 { .idxmsk64 = (n) }, \
347 #define __EVENT_CONSTRAINT(c, n, m, w, o, f) \
348 __EVENT_CONSTRAINT_RANGE(c, c, n, m, w, o, f)
350 #define EVENT_CONSTRAINT(c, n, m) \
351 __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 0, 0)
354 * The constraint_match() function only works for 'simple' event codes
355 * and not for extended (AMD64_EVENTSEL_EVENT) events codes.
357 #define EVENT_CONSTRAINT_RANGE(c, e, n, m) \
358 __EVENT_CONSTRAINT_RANGE(c, e, n, m, HWEIGHT(n), 0, 0)
360 #define INTEL_EXCLEVT_CONSTRAINT(c, n) \
361 __EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT, HWEIGHT(n),\
362 0, PERF_X86_EVENT_EXCL)
365 * The overlap flag marks event constraints with overlapping counter
366 * masks. This is the case if the counter mask of such an event is not
367 * a subset of any other counter mask of a constraint with an equal or
368 * higher weight, e.g.:
370 * c_overlaps = EVENT_CONSTRAINT_OVERLAP(0, 0x09, 0);
371 * c_another1 = EVENT_CONSTRAINT(0, 0x07, 0);
372 * c_another2 = EVENT_CONSTRAINT(0, 0x38, 0);
374 * The event scheduler may not select the correct counter in the first
375 * cycle because it needs to know which subsequent events will be
376 * scheduled. It may fail to schedule the events then. So we set the
377 * overlap flag for such constraints to give the scheduler a hint which
378 * events to select for counter rescheduling.
380 * Care must be taken as the rescheduling algorithm is O(n!) which
381 * will increase scheduling cycles for an over-committed system
382 * dramatically. The number of such EVENT_CONSTRAINT_OVERLAP() macros
383 * and its counter masks must be kept at a minimum.
385 #define EVENT_CONSTRAINT_OVERLAP(c, n, m) \
386 __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 1, 0)
389 * Constraint on the Event code.
391 #define INTEL_EVENT_CONSTRAINT(c, n) \
392 EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT)
395 * Constraint on a range of Event codes
397 #define INTEL_EVENT_CONSTRAINT_RANGE(c, e, n) \
398 EVENT_CONSTRAINT_RANGE(c, e, n, ARCH_PERFMON_EVENTSEL_EVENT)
401 * Constraint on the Event code + UMask + fixed-mask
403 * filter mask to validate fixed counter events.
404 * the following filters disqualify for fixed counters:
409 * - in_tx_checkpointed
410 * The other filters are supported by fixed counters.
411 * The any-thread option is supported starting with v3.
413 #define FIXED_EVENT_FLAGS (X86_RAW_EVENT_MASK|HSW_IN_TX|HSW_IN_TX_CHECKPOINTED)
414 #define FIXED_EVENT_CONSTRAINT(c, n) \
415 EVENT_CONSTRAINT(c, (1ULL << (32+n)), FIXED_EVENT_FLAGS)
418 * The special metric counters do not actually exist. They are calculated from
419 * the combination of the FxCtr3 + MSR_PERF_METRICS.
421 * The special metric counters are mapped to a dummy offset for the scheduler.
422 * The sharing between multiple users of the same metric without multiplexing
423 * is not allowed, even though the hardware supports that in principle.
426 #define METRIC_EVENT_CONSTRAINT(c, n) \
427 EVENT_CONSTRAINT(c, (1ULL << (INTEL_PMC_IDX_METRIC_BASE + n)), \
428 INTEL_ARCH_EVENT_MASK)
431 * Constraint on the Event code + UMask
433 #define INTEL_UEVENT_CONSTRAINT(c, n) \
434 EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK)
436 /* Constraint on specific umask bit only + event */
437 #define INTEL_UBIT_EVENT_CONSTRAINT(c, n) \
438 EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT|(c))
440 /* Like UEVENT_CONSTRAINT, but match flags too */
441 #define INTEL_FLAGS_UEVENT_CONSTRAINT(c, n) \
442 EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS)
444 #define INTEL_EXCLUEVT_CONSTRAINT(c, n) \
445 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \
446 HWEIGHT(n), 0, PERF_X86_EVENT_EXCL)
448 #define INTEL_PLD_CONSTRAINT(c, n) \
449 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
450 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LDLAT)
452 #define INTEL_PSD_CONSTRAINT(c, n) \
453 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
454 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_STLAT)
456 #define INTEL_PST_CONSTRAINT(c, n) \
457 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
458 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST)
460 /* Event constraint, but match on all event flags too. */
461 #define INTEL_FLAGS_EVENT_CONSTRAINT(c, n) \
462 EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS)
464 #define INTEL_FLAGS_EVENT_CONSTRAINT_RANGE(c, e, n) \
465 EVENT_CONSTRAINT_RANGE(c, e, n, ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS)
467 /* Check only flags, but allow all event/umask */
468 #define INTEL_ALL_EVENT_CONSTRAINT(code, n) \
469 EVENT_CONSTRAINT(code, n, X86_ALL_EVENT_FLAGS)
471 /* Check flags and event code, and set the HSW store flag */
472 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_ST(code, n) \
473 __EVENT_CONSTRAINT(code, n, \
474 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
475 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW)
477 /* Check flags and event code, and set the HSW load flag */
478 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(code, n) \
479 __EVENT_CONSTRAINT(code, n, \
480 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
481 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
483 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD_RANGE(code, end, n) \
484 __EVENT_CONSTRAINT_RANGE(code, end, n, \
485 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
486 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
488 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_XLD(code, n) \
489 __EVENT_CONSTRAINT(code, n, \
490 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
492 PERF_X86_EVENT_PEBS_LD_HSW|PERF_X86_EVENT_EXCL)
494 /* Check flags and event code/umask, and set the HSW store flag */
495 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(code, n) \
496 __EVENT_CONSTRAINT(code, n, \
497 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
498 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW)
500 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XST(code, n) \
501 __EVENT_CONSTRAINT(code, n, \
502 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
504 PERF_X86_EVENT_PEBS_ST_HSW|PERF_X86_EVENT_EXCL)
506 /* Check flags and event code/umask, and set the HSW load flag */
507 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(code, n) \
508 __EVENT_CONSTRAINT(code, n, \
509 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
510 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
512 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(code, n) \
513 __EVENT_CONSTRAINT(code, n, \
514 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
516 PERF_X86_EVENT_PEBS_LD_HSW|PERF_X86_EVENT_EXCL)
518 /* Check flags and event code/umask, and set the HSW N/A flag */
519 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_NA(code, n) \
520 __EVENT_CONSTRAINT(code, n, \
521 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
522 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_NA_HSW)
526 * We define the end marker as having a weight of -1
527 * to enable blacklisting of events using a counter bitmask
528 * of zero and thus a weight of zero.
529 * The end marker has a weight that cannot possibly be
530 * obtained from counting the bits in the bitmask.
532 #define EVENT_CONSTRAINT_END { .weight = -1 }
535 * Check for end marker with weight == -1
537 #define for_each_event_constraint(e, c) \
538 for ((e) = (c); (e)->weight != -1; (e)++)
541 * Extra registers for specific events.
543 * Some events need large masks and require external MSRs.
544 * Those extra MSRs end up being shared for all events on
545 * a PMU and sometimes between PMU of sibling HT threads.
546 * In either case, the kernel needs to handle conflicting
547 * accesses to those extra, shared, regs. The data structure
548 * to manage those registers is stored in cpu_hw_event.
555 int idx; /* per_xxx->regs[] reg index */
556 bool extra_msr_access;
559 #define EVENT_EXTRA_REG(e, ms, m, vm, i) { \
562 .config_mask = (m), \
563 .valid_mask = (vm), \
564 .idx = EXTRA_REG_##i, \
565 .extra_msr_access = true, \
568 #define INTEL_EVENT_EXTRA_REG(event, msr, vm, idx) \
569 EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT, vm, idx)
571 #define INTEL_UEVENT_EXTRA_REG(event, msr, vm, idx) \
572 EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT | \
573 ARCH_PERFMON_EVENTSEL_UMASK, vm, idx)
575 #define INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(c) \
576 INTEL_UEVENT_EXTRA_REG(c, \
577 MSR_PEBS_LD_LAT_THRESHOLD, \
581 #define EVENT_EXTRA_END EVENT_EXTRA_REG(0, 0, 0, 0, RSP_0)
583 union perf_capabilities {
591 * PMU supports separate counter range for writing
594 u64 full_width_write:1;
597 u64 pebs_output_pt_available:1;
598 u64 anythread_deprecated:1;
603 struct x86_pmu_quirk {
604 struct x86_pmu_quirk *next;
608 union x86_pmu_config {
629 #define X86_CONFIG(args...) ((union x86_pmu_config){.bits = {args}}).value
632 x86_lbr_exclusive_lbr,
633 x86_lbr_exclusive_bts,
634 x86_lbr_exclusive_pt,
635 x86_lbr_exclusive_max,
638 struct x86_hybrid_pmu {
642 cpumask_t supported_cpus;
643 union perf_capabilities intel_cap;
647 int num_counters_fixed;
648 struct event_constraint unconstrained;
650 u64 hw_cache_event_ids
651 [PERF_COUNT_HW_CACHE_MAX]
652 [PERF_COUNT_HW_CACHE_OP_MAX]
653 [PERF_COUNT_HW_CACHE_RESULT_MAX];
654 u64 hw_cache_extra_regs
655 [PERF_COUNT_HW_CACHE_MAX]
656 [PERF_COUNT_HW_CACHE_OP_MAX]
657 [PERF_COUNT_HW_CACHE_RESULT_MAX];
658 struct event_constraint *event_constraints;
659 struct event_constraint *pebs_constraints;
660 struct extra_reg *extra_regs;
662 unsigned int late_ack :1,
667 static __always_inline struct x86_hybrid_pmu *hybrid_pmu(struct pmu *pmu)
669 return container_of(pmu, struct x86_hybrid_pmu, pmu);
672 extern struct static_key_false perf_is_hybrid;
673 #define is_hybrid() static_branch_unlikely(&perf_is_hybrid)
675 #define hybrid(_pmu, _field) \
677 typeof(&x86_pmu._field) __Fp = &x86_pmu._field; \
679 if (is_hybrid() && (_pmu)) \
680 __Fp = &hybrid_pmu(_pmu)->_field; \
685 #define hybrid_var(_pmu, _var) \
687 typeof(&_var) __Fp = &_var; \
689 if (is_hybrid() && (_pmu)) \
690 __Fp = &hybrid_pmu(_pmu)->_var; \
695 #define hybrid_bit(_pmu, _field) \
697 bool __Fp = x86_pmu._field; \
699 if (is_hybrid() && (_pmu)) \
700 __Fp = hybrid_pmu(_pmu)->_field; \
705 enum hybrid_pmu_type {
709 hybrid_big_small = hybrid_big | hybrid_small,
712 #define X86_HYBRID_PMU_ATOM_IDX 0
713 #define X86_HYBRID_PMU_CORE_IDX 1
715 #define X86_HYBRID_NUM_PMUS 2
718 * struct x86_pmu - generic x86 pmu
722 * Generic x86 PMC bits
726 int (*handle_irq)(struct pt_regs *);
727 void (*disable_all)(void);
728 void (*enable_all)(int added);
729 void (*enable)(struct perf_event *);
730 void (*disable)(struct perf_event *);
731 void (*assign)(struct perf_event *event, int idx);
732 void (*add)(struct perf_event *);
733 void (*del)(struct perf_event *);
734 void (*read)(struct perf_event *event);
735 int (*hw_config)(struct perf_event *event);
736 int (*schedule_events)(struct cpu_hw_events *cpuc, int n, int *assign);
739 int (*addr_offset)(int index, bool eventsel);
740 int (*rdpmc_index)(int index);
741 u64 (*event_map)(int);
744 int num_counters_fixed;
748 unsigned long events_maskl;
749 unsigned long events_mask[BITS_TO_LONGS(ARCH_PERFMON_EVENTS_COUNT)];
754 struct event_constraint *
755 (*get_event_constraints)(struct cpu_hw_events *cpuc,
757 struct perf_event *event);
759 void (*put_event_constraints)(struct cpu_hw_events *cpuc,
760 struct perf_event *event);
762 void (*start_scheduling)(struct cpu_hw_events *cpuc);
764 void (*commit_scheduling)(struct cpu_hw_events *cpuc, int idx, int cntr);
766 void (*stop_scheduling)(struct cpu_hw_events *cpuc);
768 struct event_constraint *event_constraints;
769 struct x86_pmu_quirk *quirks;
770 int perfctr_second_write;
771 u64 (*limit_period)(struct perf_event *event, u64 l);
773 /* PMI handler bits */
774 unsigned int late_ack :1,
780 int attr_rdpmc_broken;
782 struct attribute **format_attrs;
784 ssize_t (*events_sysfs_show)(char *page, u64 config);
785 const struct attribute_group **attr_update;
787 unsigned long attr_freeze_on_smi;
792 int (*cpu_prepare)(int cpu);
793 void (*cpu_starting)(int cpu);
794 void (*cpu_dying)(int cpu);
795 void (*cpu_dead)(int cpu);
797 void (*check_microcode)(void);
798 void (*sched_task)(struct perf_event_context *ctx,
802 * Intel Arch Perfmon v2+
805 union perf_capabilities intel_cap;
808 * Intel DebugStore bits
817 pebs_no_isolation :1,
819 int pebs_record_size;
820 int pebs_buffer_size;
822 void (*drain_pebs)(struct pt_regs *regs, struct perf_sample_data *data);
823 struct event_constraint *pebs_constraints;
824 void (*pebs_aliases)(struct perf_event *event);
825 unsigned long large_pebs_flags;
831 unsigned int lbr_tos, lbr_from, lbr_to,
832 lbr_info, lbr_nr; /* LBR base regs and size */
834 u64 lbr_sel_mask; /* LBR_SELECT valid bits */
835 u64 lbr_ctl_mask; /* LBR_CTL valid bits */
838 const int *lbr_sel_map; /* lbr_select mappings */
839 int *lbr_ctl_map; /* LBR_CTL mappings */
841 bool lbr_double_abort; /* duplicated lbr aborts */
842 bool lbr_pt_coexist; /* (LBR|BTS) may coexist with PT */
844 unsigned int lbr_has_info:1;
845 unsigned int lbr_has_tsx:1;
846 unsigned int lbr_from_flags:1;
847 unsigned int lbr_to_cycles:1;
850 * Intel Architectural LBR CPUID Enumeration
852 unsigned int lbr_depth_mask:8;
853 unsigned int lbr_deep_c_reset:1;
854 unsigned int lbr_lip:1;
855 unsigned int lbr_cpl:1;
856 unsigned int lbr_filter:1;
857 unsigned int lbr_call_stack:1;
858 unsigned int lbr_mispred:1;
859 unsigned int lbr_timed_lbr:1;
860 unsigned int lbr_br_type:1;
862 void (*lbr_reset)(void);
863 void (*lbr_read)(struct cpu_hw_events *cpuc);
864 void (*lbr_save)(void *ctx);
865 void (*lbr_restore)(void *ctx);
868 * Intel PT/LBR/BTS are exclusive
870 atomic_t lbr_exclusive[x86_lbr_exclusive_max];
875 int num_topdown_events;
876 u64 (*update_topdown_event)(struct perf_event *event);
877 int (*set_topdown_event_period)(struct perf_event *event);
880 * perf task context (i.e. struct perf_event_context::task_ctx_data)
881 * switch helper to bridge calls from perf/core to perf/x86.
882 * See struct pmu::swap_task_ctx() usage for examples;
884 void (*swap_task_ctx)(struct perf_event_context *prev,
885 struct perf_event_context *next);
890 unsigned int amd_nb_constraints : 1;
891 u64 perf_ctr_pair_en;
894 * Extra registers for events
896 struct extra_reg *extra_regs;
900 * Intel host/guest support (KVM)
902 struct perf_guest_switch_msr *(*guest_get_msrs)(int *nr);
905 * Check period value for PERF_EVENT_IOC_PERIOD ioctl.
907 int (*check_period) (struct perf_event *event, u64 period);
909 int (*aux_output_match) (struct perf_event *event);
911 int (*filter_match)(struct perf_event *event);
915 * Most PMU capabilities are the same among different hybrid PMUs.
916 * The global x86_pmu saves the architecture capabilities, which
917 * are available for all PMUs. The hybrid_pmu only includes the
918 * unique capabilities.
921 struct x86_hybrid_pmu *hybrid_pmu;
922 u8 (*get_hybrid_cpu_type) (void);
925 struct x86_perf_task_context_opt {
926 int lbr_callstack_users;
931 struct x86_perf_task_context {
935 struct x86_perf_task_context_opt opt;
936 struct lbr_entry lbr[MAX_LBR_ENTRIES];
939 struct x86_perf_task_context_arch_lbr {
940 struct x86_perf_task_context_opt opt;
941 struct lbr_entry entries[];
945 * Add padding to guarantee the 64-byte alignment of the state buffer.
947 * The structure is dynamically allocated. The size of the LBR state may vary
948 * based on the number of LBR registers.
950 * Do not put anything after the LBR state.
952 struct x86_perf_task_context_arch_lbr_xsave {
953 struct x86_perf_task_context_opt opt;
956 struct xregs_state xsave;
958 struct fxregs_state i387;
959 struct xstate_header header;
960 struct arch_lbr_state lbr;
961 } __attribute__ ((packed, aligned (XSAVE_ALIGNMENT)));
965 #define x86_add_quirk(func_) \
967 static struct x86_pmu_quirk __quirk __initdata = { \
970 __quirk.next = x86_pmu.quirks; \
971 x86_pmu.quirks = &__quirk; \
977 #define PMU_FL_NO_HT_SHARING 0x1 /* no hyper-threading resource sharing */
978 #define PMU_FL_HAS_RSP_1 0x2 /* has 2 equivalent offcore_rsp regs */
979 #define PMU_FL_EXCL_CNTRS 0x4 /* has exclusive counter requirements */
980 #define PMU_FL_EXCL_ENABLED 0x8 /* exclusive counter active */
981 #define PMU_FL_PEBS_ALL 0x10 /* all events are valid PEBS events */
982 #define PMU_FL_TFA 0x20 /* deal with TSX force abort */
983 #define PMU_FL_PAIR 0x40 /* merge counters for large incr. events */
984 #define PMU_FL_INSTR_LATENCY 0x80 /* Support Instruction Latency in PEBS Memory Info Record */
985 #define PMU_FL_MEM_LOADS_AUX 0x100 /* Require an auxiliary event for the complete memory info */
987 #define EVENT_VAR(_id) event_attr_##_id
988 #define EVENT_PTR(_id) &event_attr_##_id.attr.attr
990 #define EVENT_ATTR(_name, _id) \
991 static struct perf_pmu_events_attr EVENT_VAR(_id) = { \
992 .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
993 .id = PERF_COUNT_HW_##_id, \
997 #define EVENT_ATTR_STR(_name, v, str) \
998 static struct perf_pmu_events_attr event_attr_##v = { \
999 .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
1004 #define EVENT_ATTR_STR_HT(_name, v, noht, ht) \
1005 static struct perf_pmu_events_ht_attr event_attr_##v = { \
1006 .attr = __ATTR(_name, 0444, events_ht_sysfs_show, NULL),\
1008 .event_str_noht = noht, \
1009 .event_str_ht = ht, \
1012 #define EVENT_ATTR_STR_HYBRID(_name, v, str, _pmu) \
1013 static struct perf_pmu_events_hybrid_attr event_attr_##v = { \
1014 .attr = __ATTR(_name, 0444, events_hybrid_sysfs_show, NULL),\
1020 #define FORMAT_HYBRID_PTR(_id) (&format_attr_hybrid_##_id.attr.attr)
1022 #define FORMAT_ATTR_HYBRID(_name, _pmu) \
1023 static struct perf_pmu_format_hybrid_attr format_attr_hybrid_##_name = {\
1024 .attr = __ATTR_RO(_name), \
1028 struct pmu *x86_get_pmu(unsigned int cpu);
1029 extern struct x86_pmu x86_pmu __read_mostly;
1031 static __always_inline struct x86_perf_task_context_opt *task_context_opt(void *ctx)
1033 if (static_cpu_has(X86_FEATURE_ARCH_LBR))
1034 return &((struct x86_perf_task_context_arch_lbr *)ctx)->opt;
1036 return &((struct x86_perf_task_context *)ctx)->opt;
1039 static inline bool x86_pmu_has_lbr_callstack(void)
1041 return x86_pmu.lbr_sel_map &&
1042 x86_pmu.lbr_sel_map[PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT] > 0;
1045 DECLARE_PER_CPU(struct cpu_hw_events, cpu_hw_events);
1047 int x86_perf_event_set_period(struct perf_event *event);
1050 * Generalized hw caching related hw_event table, filled
1051 * in on a per model basis. A value of 0 means
1052 * 'not supported', -1 means 'hw_event makes no sense on
1053 * this CPU', any other value means the raw hw_event
1057 #define C(x) PERF_COUNT_HW_CACHE_##x
1059 extern u64 __read_mostly hw_cache_event_ids
1060 [PERF_COUNT_HW_CACHE_MAX]
1061 [PERF_COUNT_HW_CACHE_OP_MAX]
1062 [PERF_COUNT_HW_CACHE_RESULT_MAX];
1063 extern u64 __read_mostly hw_cache_extra_regs
1064 [PERF_COUNT_HW_CACHE_MAX]
1065 [PERF_COUNT_HW_CACHE_OP_MAX]
1066 [PERF_COUNT_HW_CACHE_RESULT_MAX];
1068 u64 x86_perf_event_update(struct perf_event *event);
1070 static inline unsigned int x86_pmu_config_addr(int index)
1072 return x86_pmu.eventsel + (x86_pmu.addr_offset ?
1073 x86_pmu.addr_offset(index, true) : index);
1076 static inline unsigned int x86_pmu_event_addr(int index)
1078 return x86_pmu.perfctr + (x86_pmu.addr_offset ?
1079 x86_pmu.addr_offset(index, false) : index);
1082 static inline int x86_pmu_rdpmc_index(int index)
1084 return x86_pmu.rdpmc_index ? x86_pmu.rdpmc_index(index) : index;
1087 bool check_hw_exists(struct pmu *pmu, int num_counters,
1088 int num_counters_fixed);
1090 int x86_add_exclusive(unsigned int what);
1092 void x86_del_exclusive(unsigned int what);
1094 int x86_reserve_hardware(void);
1096 void x86_release_hardware(void);
1098 int x86_pmu_max_precise(void);
1100 void hw_perf_lbr_event_destroy(struct perf_event *event);
1102 int x86_setup_perfctr(struct perf_event *event);
1104 int x86_pmu_hw_config(struct perf_event *event);
1106 void x86_pmu_disable_all(void);
1108 static inline bool is_counter_pair(struct hw_perf_event *hwc)
1110 return hwc->flags & PERF_X86_EVENT_PAIR;
1113 static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
1116 u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
1118 if (hwc->extra_reg.reg)
1119 wrmsrl(hwc->extra_reg.reg, hwc->extra_reg.config);
1122 * Add enabled Merge event on next counter
1123 * if large increment event being enabled on this counter
1125 if (is_counter_pair(hwc))
1126 wrmsrl(x86_pmu_config_addr(hwc->idx + 1), x86_pmu.perf_ctr_pair_en);
1128 wrmsrl(hwc->config_base, (hwc->config | enable_mask) & ~disable_mask);
1131 void x86_pmu_enable_all(int added);
1133 int perf_assign_events(struct event_constraint **constraints, int n,
1134 int wmin, int wmax, int gpmax, int *assign);
1135 int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign);
1137 void x86_pmu_stop(struct perf_event *event, int flags);
1139 static inline void x86_pmu_disable_event(struct perf_event *event)
1141 u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
1142 struct hw_perf_event *hwc = &event->hw;
1144 wrmsrl(hwc->config_base, hwc->config & ~disable_mask);
1146 if (is_counter_pair(hwc))
1147 wrmsrl(x86_pmu_config_addr(hwc->idx + 1), 0);
1150 void x86_pmu_enable_event(struct perf_event *event);
1152 int x86_pmu_handle_irq(struct pt_regs *regs);
1154 void x86_pmu_show_pmu_cap(int num_counters, int num_counters_fixed,
1157 void x86_pmu_update_cpu_context(struct pmu *pmu, int cpu);
1159 extern struct event_constraint emptyconstraint;
1161 extern struct event_constraint unconstrained;
1163 static inline bool kernel_ip(unsigned long ip)
1165 #ifdef CONFIG_X86_32
1166 return ip > PAGE_OFFSET;
1168 return (long)ip < 0;
1173 * Not all PMUs provide the right context information to place the reported IP
1174 * into full context. Specifically segment registers are typically not
1177 * Assuming the address is a linear address (it is for IBS), we fake the CS and
1178 * vm86 mode using the known zero-based code segment and 'fix up' the registers
1181 * Intel PEBS/LBR appear to typically provide the effective address, nothing
1182 * much we can do about that but pray and treat it like a linear address.
1184 static inline void set_linear_ip(struct pt_regs *regs, unsigned long ip)
1186 regs->cs = kernel_ip(ip) ? __KERNEL_CS : __USER_CS;
1187 if (regs->flags & X86_VM_MASK)
1188 regs->flags ^= (PERF_EFLAGS_VM | X86_VM_MASK);
1192 ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event);
1193 ssize_t intel_event_sysfs_show(char *page, u64 config);
1195 ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr,
1197 ssize_t events_ht_sysfs_show(struct device *dev, struct device_attribute *attr,
1199 ssize_t events_hybrid_sysfs_show(struct device *dev,
1200 struct device_attribute *attr,
1203 static inline bool fixed_counter_disabled(int i, struct pmu *pmu)
1205 u64 intel_ctrl = hybrid(pmu, intel_ctrl);
1207 return !(intel_ctrl >> (i + INTEL_PMC_IDX_FIXED));
1210 #ifdef CONFIG_CPU_SUP_AMD
1212 int amd_pmu_init(void);
1214 #else /* CONFIG_CPU_SUP_AMD */
1216 static inline int amd_pmu_init(void)
1221 #endif /* CONFIG_CPU_SUP_AMD */
1223 static inline int is_pebs_pt(struct perf_event *event)
1225 return !!(event->hw.flags & PERF_X86_EVENT_PEBS_VIA_PT);
1228 #ifdef CONFIG_CPU_SUP_INTEL
1230 static inline bool intel_pmu_has_bts_period(struct perf_event *event, u64 period)
1232 struct hw_perf_event *hwc = &event->hw;
1233 unsigned int hw_event, bts_event;
1235 if (event->attr.freq)
1238 hw_event = hwc->config & INTEL_ARCH_EVENT_MASK;
1239 bts_event = x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS);
1241 return hw_event == bts_event && period == 1;
1244 static inline bool intel_pmu_has_bts(struct perf_event *event)
1246 struct hw_perf_event *hwc = &event->hw;
1248 return intel_pmu_has_bts_period(event, hwc->sample_period);
1251 static __always_inline void __intel_pmu_pebs_disable_all(void)
1253 wrmsrl(MSR_IA32_PEBS_ENABLE, 0);
1256 static __always_inline void __intel_pmu_arch_lbr_disable(void)
1258 wrmsrl(MSR_ARCH_LBR_CTL, 0);
1261 static __always_inline void __intel_pmu_lbr_disable(void)
1265 rdmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
1266 debugctl &= ~(DEBUGCTLMSR_LBR | DEBUGCTLMSR_FREEZE_LBRS_ON_PMI);
1267 wrmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
1270 int intel_pmu_save_and_restart(struct perf_event *event);
1272 struct event_constraint *
1273 x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
1274 struct perf_event *event);
1276 extern int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu);
1277 extern void intel_cpuc_finish(struct cpu_hw_events *cpuc);
1279 int intel_pmu_init(void);
1281 void init_debug_store_on_cpu(int cpu);
1283 void fini_debug_store_on_cpu(int cpu);
1285 void release_ds_buffers(void);
1287 void reserve_ds_buffers(void);
1289 void release_lbr_buffers(void);
1291 void reserve_lbr_buffers(void);
1293 extern struct event_constraint bts_constraint;
1294 extern struct event_constraint vlbr_constraint;
1296 void intel_pmu_enable_bts(u64 config);
1298 void intel_pmu_disable_bts(void);
1300 int intel_pmu_drain_bts_buffer(void);
1302 extern struct event_constraint intel_core2_pebs_event_constraints[];
1304 extern struct event_constraint intel_atom_pebs_event_constraints[];
1306 extern struct event_constraint intel_slm_pebs_event_constraints[];
1308 extern struct event_constraint intel_glm_pebs_event_constraints[];
1310 extern struct event_constraint intel_glp_pebs_event_constraints[];
1312 extern struct event_constraint intel_grt_pebs_event_constraints[];
1314 extern struct event_constraint intel_nehalem_pebs_event_constraints[];
1316 extern struct event_constraint intel_westmere_pebs_event_constraints[];
1318 extern struct event_constraint intel_snb_pebs_event_constraints[];
1320 extern struct event_constraint intel_ivb_pebs_event_constraints[];
1322 extern struct event_constraint intel_hsw_pebs_event_constraints[];
1324 extern struct event_constraint intel_bdw_pebs_event_constraints[];
1326 extern struct event_constraint intel_skl_pebs_event_constraints[];
1328 extern struct event_constraint intel_icl_pebs_event_constraints[];
1330 extern struct event_constraint intel_spr_pebs_event_constraints[];
1332 struct event_constraint *intel_pebs_constraints(struct perf_event *event);
1334 void intel_pmu_pebs_add(struct perf_event *event);
1336 void intel_pmu_pebs_del(struct perf_event *event);
1338 void intel_pmu_pebs_enable(struct perf_event *event);
1340 void intel_pmu_pebs_disable(struct perf_event *event);
1342 void intel_pmu_pebs_enable_all(void);
1344 void intel_pmu_pebs_disable_all(void);
1346 void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in);
1348 void intel_pmu_auto_reload_read(struct perf_event *event);
1350 void intel_pmu_store_pebs_lbrs(struct lbr_entry *lbr);
1352 void intel_ds_init(void);
1354 void intel_pmu_lbr_swap_task_ctx(struct perf_event_context *prev,
1355 struct perf_event_context *next);
1357 void intel_pmu_lbr_sched_task(struct perf_event_context *ctx, bool sched_in);
1359 u64 lbr_from_signext_quirk_wr(u64 val);
1361 void intel_pmu_lbr_reset(void);
1363 void intel_pmu_lbr_reset_32(void);
1365 void intel_pmu_lbr_reset_64(void);
1367 void intel_pmu_lbr_add(struct perf_event *event);
1369 void intel_pmu_lbr_del(struct perf_event *event);
1371 void intel_pmu_lbr_enable_all(bool pmi);
1373 void intel_pmu_lbr_disable_all(void);
1375 void intel_pmu_lbr_read(void);
1377 void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc);
1379 void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc);
1381 void intel_pmu_lbr_save(void *ctx);
1383 void intel_pmu_lbr_restore(void *ctx);
1385 void intel_pmu_lbr_init_core(void);
1387 void intel_pmu_lbr_init_nhm(void);
1389 void intel_pmu_lbr_init_atom(void);
1391 void intel_pmu_lbr_init_slm(void);
1393 void intel_pmu_lbr_init_snb(void);
1395 void intel_pmu_lbr_init_hsw(void);
1397 void intel_pmu_lbr_init_skl(void);
1399 void intel_pmu_lbr_init_knl(void);
1401 void intel_pmu_lbr_init(void);
1403 void intel_pmu_arch_lbr_init(void);
1405 void intel_pmu_pebs_data_source_nhm(void);
1407 void intel_pmu_pebs_data_source_skl(bool pmem);
1409 int intel_pmu_setup_lbr_filter(struct perf_event *event);
1411 void intel_pt_interrupt(void);
1413 int intel_bts_interrupt(void);
1415 void intel_bts_enable_local(void);
1417 void intel_bts_disable_local(void);
1419 int p4_pmu_init(void);
1421 int p6_pmu_init(void);
1423 int knc_pmu_init(void);
1425 static inline int is_ht_workaround_enabled(void)
1427 return !!(x86_pmu.flags & PMU_FL_EXCL_ENABLED);
1430 #else /* CONFIG_CPU_SUP_INTEL */
1432 static inline void reserve_ds_buffers(void)
1436 static inline void release_ds_buffers(void)
1440 static inline void release_lbr_buffers(void)
1444 static inline void reserve_lbr_buffers(void)
1448 static inline int intel_pmu_init(void)
1453 static inline int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu)
1458 static inline void intel_cpuc_finish(struct cpu_hw_events *cpuc)
1462 static inline int is_ht_workaround_enabled(void)
1466 #endif /* CONFIG_CPU_SUP_INTEL */
1468 #if ((defined CONFIG_CPU_SUP_CENTAUR) || (defined CONFIG_CPU_SUP_ZHAOXIN))
1469 int zhaoxin_pmu_init(void);
1471 static inline int zhaoxin_pmu_init(void)
1475 #endif /*CONFIG_CPU_SUP_CENTAUR or CONFIG_CPU_SUP_ZHAOXIN*/