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_MAX_KNOWN = LBR_FORMAT_TIME,
222 X86_PERF_KFREE_SHARED = 0,
223 X86_PERF_KFREE_EXCL = 1,
227 struct cpu_hw_events {
229 * Generic x86 PMC bits
231 struct perf_event *events[X86_PMC_IDX_MAX]; /* in counter order */
232 unsigned long active_mask[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
233 unsigned long dirty[BITS_TO_LONGS(X86_PMC_IDX_MAX)];
236 int n_events; /* the # of events in the below arrays */
237 int n_added; /* the # last events in the below arrays;
238 they've never been enabled yet */
239 int n_txn; /* the # last events in the below arrays;
240 added in the current transaction */
243 int assign[X86_PMC_IDX_MAX]; /* event to counter assignment */
244 u64 tags[X86_PMC_IDX_MAX];
246 struct perf_event *event_list[X86_PMC_IDX_MAX]; /* in enabled order */
247 struct event_constraint *event_constraint[X86_PMC_IDX_MAX];
249 int n_excl; /* the number of exclusive events */
251 unsigned int txn_flags;
255 * Intel DebugStore bits
257 struct debug_store *ds;
266 /* Current super set of events hardware configuration */
268 u64 active_pebs_data_cfg;
269 int pebs_record_size;
276 struct perf_branch_stack lbr_stack;
277 struct perf_branch_entry lbr_entries[MAX_LBR_ENTRIES];
279 struct er_account *lbr_sel;
280 struct er_account *lbr_ctl;
289 * Intel host/guest exclude bits
291 u64 intel_ctrl_guest_mask;
292 u64 intel_ctrl_host_mask;
293 struct perf_guest_switch_msr guest_switch_msrs[X86_PMC_IDX_MAX];
296 * Intel checkpoint mask
301 * manage shared (per-core, per-cpu) registers
302 * used on Intel NHM/WSM/SNB
304 struct intel_shared_regs *shared_regs;
306 * manage exclusive counter access between hyperthread
308 struct event_constraint *constraint_list; /* in enable order */
309 struct intel_excl_cntrs *excl_cntrs;
310 int excl_thread_id; /* 0 or 1 */
313 * SKL TSX_FORCE_ABORT shadow
320 /* number of accepted metrics events */
326 struct amd_nb *amd_nb;
327 /* Inverted mask of bits to clear in the perf_ctr ctrl registers */
328 u64 perf_ctr_virt_mask;
329 int n_pair; /* Large increment events */
331 void *kfree_on_online[X86_PERF_KFREE_MAX];
336 #define __EVENT_CONSTRAINT_RANGE(c, e, n, m, w, o, f) { \
337 { .idxmsk64 = (n) }, \
346 #define __EVENT_CONSTRAINT(c, n, m, w, o, f) \
347 __EVENT_CONSTRAINT_RANGE(c, c, n, m, w, o, f)
349 #define EVENT_CONSTRAINT(c, n, m) \
350 __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 0, 0)
353 * The constraint_match() function only works for 'simple' event codes
354 * and not for extended (AMD64_EVENTSEL_EVENT) events codes.
356 #define EVENT_CONSTRAINT_RANGE(c, e, n, m) \
357 __EVENT_CONSTRAINT_RANGE(c, e, n, m, HWEIGHT(n), 0, 0)
359 #define INTEL_EXCLEVT_CONSTRAINT(c, n) \
360 __EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT, HWEIGHT(n),\
361 0, PERF_X86_EVENT_EXCL)
364 * The overlap flag marks event constraints with overlapping counter
365 * masks. This is the case if the counter mask of such an event is not
366 * a subset of any other counter mask of a constraint with an equal or
367 * higher weight, e.g.:
369 * c_overlaps = EVENT_CONSTRAINT_OVERLAP(0, 0x09, 0);
370 * c_another1 = EVENT_CONSTRAINT(0, 0x07, 0);
371 * c_another2 = EVENT_CONSTRAINT(0, 0x38, 0);
373 * The event scheduler may not select the correct counter in the first
374 * cycle because it needs to know which subsequent events will be
375 * scheduled. It may fail to schedule the events then. So we set the
376 * overlap flag for such constraints to give the scheduler a hint which
377 * events to select for counter rescheduling.
379 * Care must be taken as the rescheduling algorithm is O(n!) which
380 * will increase scheduling cycles for an over-committed system
381 * dramatically. The number of such EVENT_CONSTRAINT_OVERLAP() macros
382 * and its counter masks must be kept at a minimum.
384 #define EVENT_CONSTRAINT_OVERLAP(c, n, m) \
385 __EVENT_CONSTRAINT(c, n, m, HWEIGHT(n), 1, 0)
388 * Constraint on the Event code.
390 #define INTEL_EVENT_CONSTRAINT(c, n) \
391 EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT)
394 * Constraint on a range of Event codes
396 #define INTEL_EVENT_CONSTRAINT_RANGE(c, e, n) \
397 EVENT_CONSTRAINT_RANGE(c, e, n, ARCH_PERFMON_EVENTSEL_EVENT)
400 * Constraint on the Event code + UMask + fixed-mask
402 * filter mask to validate fixed counter events.
403 * the following filters disqualify for fixed counters:
408 * - in_tx_checkpointed
409 * The other filters are supported by fixed counters.
410 * The any-thread option is supported starting with v3.
412 #define FIXED_EVENT_FLAGS (X86_RAW_EVENT_MASK|HSW_IN_TX|HSW_IN_TX_CHECKPOINTED)
413 #define FIXED_EVENT_CONSTRAINT(c, n) \
414 EVENT_CONSTRAINT(c, (1ULL << (32+n)), FIXED_EVENT_FLAGS)
417 * The special metric counters do not actually exist. They are calculated from
418 * the combination of the FxCtr3 + MSR_PERF_METRICS.
420 * The special metric counters are mapped to a dummy offset for the scheduler.
421 * The sharing between multiple users of the same metric without multiplexing
422 * is not allowed, even though the hardware supports that in principle.
425 #define METRIC_EVENT_CONSTRAINT(c, n) \
426 EVENT_CONSTRAINT(c, (1ULL << (INTEL_PMC_IDX_METRIC_BASE + n)), \
427 INTEL_ARCH_EVENT_MASK)
430 * Constraint on the Event code + UMask
432 #define INTEL_UEVENT_CONSTRAINT(c, n) \
433 EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK)
435 /* Constraint on specific umask bit only + event */
436 #define INTEL_UBIT_EVENT_CONSTRAINT(c, n) \
437 EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT|(c))
439 /* Like UEVENT_CONSTRAINT, but match flags too */
440 #define INTEL_FLAGS_UEVENT_CONSTRAINT(c, n) \
441 EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS)
443 #define INTEL_EXCLUEVT_CONSTRAINT(c, n) \
444 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK, \
445 HWEIGHT(n), 0, PERF_X86_EVENT_EXCL)
447 #define INTEL_PLD_CONSTRAINT(c, n) \
448 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
449 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LDLAT)
451 #define INTEL_PSD_CONSTRAINT(c, n) \
452 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
453 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_STLAT)
455 #define INTEL_PST_CONSTRAINT(c, n) \
456 __EVENT_CONSTRAINT(c, n, INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
457 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST)
459 /* Event constraint, but match on all event flags too. */
460 #define INTEL_FLAGS_EVENT_CONSTRAINT(c, n) \
461 EVENT_CONSTRAINT(c, n, ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS)
463 #define INTEL_FLAGS_EVENT_CONSTRAINT_RANGE(c, e, n) \
464 EVENT_CONSTRAINT_RANGE(c, e, n, ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS)
466 /* Check only flags, but allow all event/umask */
467 #define INTEL_ALL_EVENT_CONSTRAINT(code, n) \
468 EVENT_CONSTRAINT(code, n, X86_ALL_EVENT_FLAGS)
470 /* Check flags and event code, and set the HSW store flag */
471 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_ST(code, n) \
472 __EVENT_CONSTRAINT(code, n, \
473 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
474 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW)
476 /* Check flags and event code, and set the HSW load flag */
477 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD(code, n) \
478 __EVENT_CONSTRAINT(code, n, \
479 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
480 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
482 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_LD_RANGE(code, end, n) \
483 __EVENT_CONSTRAINT_RANGE(code, end, n, \
484 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
485 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
487 #define INTEL_FLAGS_EVENT_CONSTRAINT_DATALA_XLD(code, n) \
488 __EVENT_CONSTRAINT(code, n, \
489 ARCH_PERFMON_EVENTSEL_EVENT|X86_ALL_EVENT_FLAGS, \
491 PERF_X86_EVENT_PEBS_LD_HSW|PERF_X86_EVENT_EXCL)
493 /* Check flags and event code/umask, and set the HSW store flag */
494 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_ST(code, n) \
495 __EVENT_CONSTRAINT(code, n, \
496 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
497 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_ST_HSW)
499 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XST(code, n) \
500 __EVENT_CONSTRAINT(code, n, \
501 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
503 PERF_X86_EVENT_PEBS_ST_HSW|PERF_X86_EVENT_EXCL)
505 /* Check flags and event code/umask, and set the HSW load flag */
506 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_LD(code, n) \
507 __EVENT_CONSTRAINT(code, n, \
508 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
509 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_LD_HSW)
511 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_XLD(code, n) \
512 __EVENT_CONSTRAINT(code, n, \
513 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
515 PERF_X86_EVENT_PEBS_LD_HSW|PERF_X86_EVENT_EXCL)
517 /* Check flags and event code/umask, and set the HSW N/A flag */
518 #define INTEL_FLAGS_UEVENT_CONSTRAINT_DATALA_NA(code, n) \
519 __EVENT_CONSTRAINT(code, n, \
520 INTEL_ARCH_EVENT_MASK|X86_ALL_EVENT_FLAGS, \
521 HWEIGHT(n), 0, PERF_X86_EVENT_PEBS_NA_HSW)
525 * We define the end marker as having a weight of -1
526 * to enable blacklisting of events using a counter bitmask
527 * of zero and thus a weight of zero.
528 * The end marker has a weight that cannot possibly be
529 * obtained from counting the bits in the bitmask.
531 #define EVENT_CONSTRAINT_END { .weight = -1 }
534 * Check for end marker with weight == -1
536 #define for_each_event_constraint(e, c) \
537 for ((e) = (c); (e)->weight != -1; (e)++)
540 * Extra registers for specific events.
542 * Some events need large masks and require external MSRs.
543 * Those extra MSRs end up being shared for all events on
544 * a PMU and sometimes between PMU of sibling HT threads.
545 * In either case, the kernel needs to handle conflicting
546 * accesses to those extra, shared, regs. The data structure
547 * to manage those registers is stored in cpu_hw_event.
554 int idx; /* per_xxx->regs[] reg index */
555 bool extra_msr_access;
558 #define EVENT_EXTRA_REG(e, ms, m, vm, i) { \
561 .config_mask = (m), \
562 .valid_mask = (vm), \
563 .idx = EXTRA_REG_##i, \
564 .extra_msr_access = true, \
567 #define INTEL_EVENT_EXTRA_REG(event, msr, vm, idx) \
568 EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT, vm, idx)
570 #define INTEL_UEVENT_EXTRA_REG(event, msr, vm, idx) \
571 EVENT_EXTRA_REG(event, msr, ARCH_PERFMON_EVENTSEL_EVENT | \
572 ARCH_PERFMON_EVENTSEL_UMASK, vm, idx)
574 #define INTEL_UEVENT_PEBS_LDLAT_EXTRA_REG(c) \
575 INTEL_UEVENT_EXTRA_REG(c, \
576 MSR_PEBS_LD_LAT_THRESHOLD, \
580 #define EVENT_EXTRA_END EVENT_EXTRA_REG(0, 0, 0, 0, RSP_0)
582 union perf_capabilities {
590 * PMU supports separate counter range for writing
593 u64 full_width_write:1;
596 u64 pebs_output_pt_available:1;
597 u64 anythread_deprecated:1;
602 struct x86_pmu_quirk {
603 struct x86_pmu_quirk *next;
607 union x86_pmu_config {
628 #define X86_CONFIG(args...) ((union x86_pmu_config){.bits = {args}}).value
631 x86_lbr_exclusive_lbr,
632 x86_lbr_exclusive_bts,
633 x86_lbr_exclusive_pt,
634 x86_lbr_exclusive_max,
637 struct x86_hybrid_pmu {
641 cpumask_t supported_cpus;
642 union perf_capabilities intel_cap;
646 int num_counters_fixed;
647 struct event_constraint unconstrained;
649 u64 hw_cache_event_ids
650 [PERF_COUNT_HW_CACHE_MAX]
651 [PERF_COUNT_HW_CACHE_OP_MAX]
652 [PERF_COUNT_HW_CACHE_RESULT_MAX];
653 u64 hw_cache_extra_regs
654 [PERF_COUNT_HW_CACHE_MAX]
655 [PERF_COUNT_HW_CACHE_OP_MAX]
656 [PERF_COUNT_HW_CACHE_RESULT_MAX];
657 struct event_constraint *event_constraints;
658 struct event_constraint *pebs_constraints;
659 struct extra_reg *extra_regs;
661 unsigned int late_ack :1,
666 static __always_inline struct x86_hybrid_pmu *hybrid_pmu(struct pmu *pmu)
668 return container_of(pmu, struct x86_hybrid_pmu, pmu);
671 extern struct static_key_false perf_is_hybrid;
672 #define is_hybrid() static_branch_unlikely(&perf_is_hybrid)
674 #define hybrid(_pmu, _field) \
676 typeof(&x86_pmu._field) __Fp = &x86_pmu._field; \
678 if (is_hybrid() && (_pmu)) \
679 __Fp = &hybrid_pmu(_pmu)->_field; \
684 #define hybrid_var(_pmu, _var) \
686 typeof(&_var) __Fp = &_var; \
688 if (is_hybrid() && (_pmu)) \
689 __Fp = &hybrid_pmu(_pmu)->_var; \
694 #define hybrid_bit(_pmu, _field) \
696 bool __Fp = x86_pmu._field; \
698 if (is_hybrid() && (_pmu)) \
699 __Fp = hybrid_pmu(_pmu)->_field; \
704 enum hybrid_pmu_type {
708 hybrid_big_small = hybrid_big | hybrid_small,
711 #define X86_HYBRID_PMU_ATOM_IDX 0
712 #define X86_HYBRID_PMU_CORE_IDX 1
714 #define X86_HYBRID_NUM_PMUS 2
717 * struct x86_pmu - generic x86 pmu
721 * Generic x86 PMC bits
725 int (*handle_irq)(struct pt_regs *);
726 void (*disable_all)(void);
727 void (*enable_all)(int added);
728 void (*enable)(struct perf_event *);
729 void (*disable)(struct perf_event *);
730 void (*assign)(struct perf_event *event, int idx);
731 void (*add)(struct perf_event *);
732 void (*del)(struct perf_event *);
733 void (*read)(struct perf_event *event);
734 int (*hw_config)(struct perf_event *event);
735 int (*schedule_events)(struct cpu_hw_events *cpuc, int n, int *assign);
738 int (*addr_offset)(int index, bool eventsel);
739 int (*rdpmc_index)(int index);
740 u64 (*event_map)(int);
743 int num_counters_fixed;
747 unsigned long events_maskl;
748 unsigned long events_mask[BITS_TO_LONGS(ARCH_PERFMON_EVENTS_COUNT)];
753 struct event_constraint *
754 (*get_event_constraints)(struct cpu_hw_events *cpuc,
756 struct perf_event *event);
758 void (*put_event_constraints)(struct cpu_hw_events *cpuc,
759 struct perf_event *event);
761 void (*start_scheduling)(struct cpu_hw_events *cpuc);
763 void (*commit_scheduling)(struct cpu_hw_events *cpuc, int idx, int cntr);
765 void (*stop_scheduling)(struct cpu_hw_events *cpuc);
767 struct event_constraint *event_constraints;
768 struct x86_pmu_quirk *quirks;
769 int perfctr_second_write;
770 u64 (*limit_period)(struct perf_event *event, u64 l);
772 /* PMI handler bits */
773 unsigned int late_ack :1,
779 int attr_rdpmc_broken;
781 struct attribute **format_attrs;
783 ssize_t (*events_sysfs_show)(char *page, u64 config);
784 const struct attribute_group **attr_update;
786 unsigned long attr_freeze_on_smi;
791 int (*cpu_prepare)(int cpu);
792 void (*cpu_starting)(int cpu);
793 void (*cpu_dying)(int cpu);
794 void (*cpu_dead)(int cpu);
796 void (*check_microcode)(void);
797 void (*sched_task)(struct perf_event_context *ctx,
801 * Intel Arch Perfmon v2+
804 union perf_capabilities intel_cap;
807 * Intel DebugStore bits
816 pebs_no_isolation :1,
818 int pebs_record_size;
819 int pebs_buffer_size;
821 void (*drain_pebs)(struct pt_regs *regs, struct perf_sample_data *data);
822 struct event_constraint *pebs_constraints;
823 void (*pebs_aliases)(struct perf_event *event);
824 unsigned long large_pebs_flags;
830 unsigned int lbr_tos, lbr_from, lbr_to,
831 lbr_info, lbr_nr; /* LBR base regs and size */
833 u64 lbr_sel_mask; /* LBR_SELECT valid bits */
834 u64 lbr_ctl_mask; /* LBR_CTL valid bits */
837 const int *lbr_sel_map; /* lbr_select mappings */
838 int *lbr_ctl_map; /* LBR_CTL mappings */
840 bool lbr_double_abort; /* duplicated lbr aborts */
841 bool lbr_pt_coexist; /* (LBR|BTS) may coexist with PT */
844 * Intel Architectural LBR CPUID Enumeration
846 unsigned int lbr_depth_mask:8;
847 unsigned int lbr_deep_c_reset:1;
848 unsigned int lbr_lip:1;
849 unsigned int lbr_cpl:1;
850 unsigned int lbr_filter:1;
851 unsigned int lbr_call_stack:1;
852 unsigned int lbr_mispred:1;
853 unsigned int lbr_timed_lbr:1;
854 unsigned int lbr_br_type:1;
856 void (*lbr_reset)(void);
857 void (*lbr_read)(struct cpu_hw_events *cpuc);
858 void (*lbr_save)(void *ctx);
859 void (*lbr_restore)(void *ctx);
862 * Intel PT/LBR/BTS are exclusive
864 atomic_t lbr_exclusive[x86_lbr_exclusive_max];
869 int num_topdown_events;
870 u64 (*update_topdown_event)(struct perf_event *event);
871 int (*set_topdown_event_period)(struct perf_event *event);
874 * perf task context (i.e. struct perf_event_context::task_ctx_data)
875 * switch helper to bridge calls from perf/core to perf/x86.
876 * See struct pmu::swap_task_ctx() usage for examples;
878 void (*swap_task_ctx)(struct perf_event_context *prev,
879 struct perf_event_context *next);
884 unsigned int amd_nb_constraints : 1;
885 u64 perf_ctr_pair_en;
888 * Extra registers for events
890 struct extra_reg *extra_regs;
894 * Intel host/guest support (KVM)
896 struct perf_guest_switch_msr *(*guest_get_msrs)(int *nr);
899 * Check period value for PERF_EVENT_IOC_PERIOD ioctl.
901 int (*check_period) (struct perf_event *event, u64 period);
903 int (*aux_output_match) (struct perf_event *event);
905 int (*filter_match)(struct perf_event *event);
909 * Most PMU capabilities are the same among different hybrid PMUs.
910 * The global x86_pmu saves the architecture capabilities, which
911 * are available for all PMUs. The hybrid_pmu only includes the
912 * unique capabilities.
915 struct x86_hybrid_pmu *hybrid_pmu;
916 u8 (*get_hybrid_cpu_type) (void);
919 struct x86_perf_task_context_opt {
920 int lbr_callstack_users;
925 struct x86_perf_task_context {
929 struct x86_perf_task_context_opt opt;
930 struct lbr_entry lbr[MAX_LBR_ENTRIES];
933 struct x86_perf_task_context_arch_lbr {
934 struct x86_perf_task_context_opt opt;
935 struct lbr_entry entries[];
939 * Add padding to guarantee the 64-byte alignment of the state buffer.
941 * The structure is dynamically allocated. The size of the LBR state may vary
942 * based on the number of LBR registers.
944 * Do not put anything after the LBR state.
946 struct x86_perf_task_context_arch_lbr_xsave {
947 struct x86_perf_task_context_opt opt;
950 struct xregs_state xsave;
952 struct fxregs_state i387;
953 struct xstate_header header;
954 struct arch_lbr_state lbr;
955 } __attribute__ ((packed, aligned (XSAVE_ALIGNMENT)));
959 #define x86_add_quirk(func_) \
961 static struct x86_pmu_quirk __quirk __initdata = { \
964 __quirk.next = x86_pmu.quirks; \
965 x86_pmu.quirks = &__quirk; \
971 #define PMU_FL_NO_HT_SHARING 0x1 /* no hyper-threading resource sharing */
972 #define PMU_FL_HAS_RSP_1 0x2 /* has 2 equivalent offcore_rsp regs */
973 #define PMU_FL_EXCL_CNTRS 0x4 /* has exclusive counter requirements */
974 #define PMU_FL_EXCL_ENABLED 0x8 /* exclusive counter active */
975 #define PMU_FL_PEBS_ALL 0x10 /* all events are valid PEBS events */
976 #define PMU_FL_TFA 0x20 /* deal with TSX force abort */
977 #define PMU_FL_PAIR 0x40 /* merge counters for large incr. events */
978 #define PMU_FL_INSTR_LATENCY 0x80 /* Support Instruction Latency in PEBS Memory Info Record */
979 #define PMU_FL_MEM_LOADS_AUX 0x100 /* Require an auxiliary event for the complete memory info */
981 #define EVENT_VAR(_id) event_attr_##_id
982 #define EVENT_PTR(_id) &event_attr_##_id.attr.attr
984 #define EVENT_ATTR(_name, _id) \
985 static struct perf_pmu_events_attr EVENT_VAR(_id) = { \
986 .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
987 .id = PERF_COUNT_HW_##_id, \
991 #define EVENT_ATTR_STR(_name, v, str) \
992 static struct perf_pmu_events_attr event_attr_##v = { \
993 .attr = __ATTR(_name, 0444, events_sysfs_show, NULL), \
998 #define EVENT_ATTR_STR_HT(_name, v, noht, ht) \
999 static struct perf_pmu_events_ht_attr event_attr_##v = { \
1000 .attr = __ATTR(_name, 0444, events_ht_sysfs_show, NULL),\
1002 .event_str_noht = noht, \
1003 .event_str_ht = ht, \
1006 #define EVENT_ATTR_STR_HYBRID(_name, v, str, _pmu) \
1007 static struct perf_pmu_events_hybrid_attr event_attr_##v = { \
1008 .attr = __ATTR(_name, 0444, events_hybrid_sysfs_show, NULL),\
1014 #define FORMAT_HYBRID_PTR(_id) (&format_attr_hybrid_##_id.attr.attr)
1016 #define FORMAT_ATTR_HYBRID(_name, _pmu) \
1017 static struct perf_pmu_format_hybrid_attr format_attr_hybrid_##_name = {\
1018 .attr = __ATTR_RO(_name), \
1022 struct pmu *x86_get_pmu(unsigned int cpu);
1023 extern struct x86_pmu x86_pmu __read_mostly;
1025 static __always_inline struct x86_perf_task_context_opt *task_context_opt(void *ctx)
1027 if (static_cpu_has(X86_FEATURE_ARCH_LBR))
1028 return &((struct x86_perf_task_context_arch_lbr *)ctx)->opt;
1030 return &((struct x86_perf_task_context *)ctx)->opt;
1033 static inline bool x86_pmu_has_lbr_callstack(void)
1035 return x86_pmu.lbr_sel_map &&
1036 x86_pmu.lbr_sel_map[PERF_SAMPLE_BRANCH_CALL_STACK_SHIFT] > 0;
1039 DECLARE_PER_CPU(struct cpu_hw_events, cpu_hw_events);
1041 int x86_perf_event_set_period(struct perf_event *event);
1044 * Generalized hw caching related hw_event table, filled
1045 * in on a per model basis. A value of 0 means
1046 * 'not supported', -1 means 'hw_event makes no sense on
1047 * this CPU', any other value means the raw hw_event
1051 #define C(x) PERF_COUNT_HW_CACHE_##x
1053 extern u64 __read_mostly hw_cache_event_ids
1054 [PERF_COUNT_HW_CACHE_MAX]
1055 [PERF_COUNT_HW_CACHE_OP_MAX]
1056 [PERF_COUNT_HW_CACHE_RESULT_MAX];
1057 extern u64 __read_mostly hw_cache_extra_regs
1058 [PERF_COUNT_HW_CACHE_MAX]
1059 [PERF_COUNT_HW_CACHE_OP_MAX]
1060 [PERF_COUNT_HW_CACHE_RESULT_MAX];
1062 u64 x86_perf_event_update(struct perf_event *event);
1064 static inline unsigned int x86_pmu_config_addr(int index)
1066 return x86_pmu.eventsel + (x86_pmu.addr_offset ?
1067 x86_pmu.addr_offset(index, true) : index);
1070 static inline unsigned int x86_pmu_event_addr(int index)
1072 return x86_pmu.perfctr + (x86_pmu.addr_offset ?
1073 x86_pmu.addr_offset(index, false) : index);
1076 static inline int x86_pmu_rdpmc_index(int index)
1078 return x86_pmu.rdpmc_index ? x86_pmu.rdpmc_index(index) : index;
1081 bool check_hw_exists(struct pmu *pmu, int num_counters,
1082 int num_counters_fixed);
1084 int x86_add_exclusive(unsigned int what);
1086 void x86_del_exclusive(unsigned int what);
1088 int x86_reserve_hardware(void);
1090 void x86_release_hardware(void);
1092 int x86_pmu_max_precise(void);
1094 void hw_perf_lbr_event_destroy(struct perf_event *event);
1096 int x86_setup_perfctr(struct perf_event *event);
1098 int x86_pmu_hw_config(struct perf_event *event);
1100 void x86_pmu_disable_all(void);
1102 static inline bool is_counter_pair(struct hw_perf_event *hwc)
1104 return hwc->flags & PERF_X86_EVENT_PAIR;
1107 static inline void __x86_pmu_enable_event(struct hw_perf_event *hwc,
1110 u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
1112 if (hwc->extra_reg.reg)
1113 wrmsrl(hwc->extra_reg.reg, hwc->extra_reg.config);
1116 * Add enabled Merge event on next counter
1117 * if large increment event being enabled on this counter
1119 if (is_counter_pair(hwc))
1120 wrmsrl(x86_pmu_config_addr(hwc->idx + 1), x86_pmu.perf_ctr_pair_en);
1122 wrmsrl(hwc->config_base, (hwc->config | enable_mask) & ~disable_mask);
1125 void x86_pmu_enable_all(int added);
1127 int perf_assign_events(struct event_constraint **constraints, int n,
1128 int wmin, int wmax, int gpmax, int *assign);
1129 int x86_schedule_events(struct cpu_hw_events *cpuc, int n, int *assign);
1131 void x86_pmu_stop(struct perf_event *event, int flags);
1133 static inline void x86_pmu_disable_event(struct perf_event *event)
1135 u64 disable_mask = __this_cpu_read(cpu_hw_events.perf_ctr_virt_mask);
1136 struct hw_perf_event *hwc = &event->hw;
1138 wrmsrl(hwc->config_base, hwc->config & ~disable_mask);
1140 if (is_counter_pair(hwc))
1141 wrmsrl(x86_pmu_config_addr(hwc->idx + 1), 0);
1144 void x86_pmu_enable_event(struct perf_event *event);
1146 int x86_pmu_handle_irq(struct pt_regs *regs);
1148 void x86_pmu_show_pmu_cap(int num_counters, int num_counters_fixed,
1151 void x86_pmu_update_cpu_context(struct pmu *pmu, int cpu);
1153 extern struct event_constraint emptyconstraint;
1155 extern struct event_constraint unconstrained;
1157 static inline bool kernel_ip(unsigned long ip)
1159 #ifdef CONFIG_X86_32
1160 return ip > PAGE_OFFSET;
1162 return (long)ip < 0;
1167 * Not all PMUs provide the right context information to place the reported IP
1168 * into full context. Specifically segment registers are typically not
1171 * Assuming the address is a linear address (it is for IBS), we fake the CS and
1172 * vm86 mode using the known zero-based code segment and 'fix up' the registers
1175 * Intel PEBS/LBR appear to typically provide the effective address, nothing
1176 * much we can do about that but pray and treat it like a linear address.
1178 static inline void set_linear_ip(struct pt_regs *regs, unsigned long ip)
1180 regs->cs = kernel_ip(ip) ? __KERNEL_CS : __USER_CS;
1181 if (regs->flags & X86_VM_MASK)
1182 regs->flags ^= (PERF_EFLAGS_VM | X86_VM_MASK);
1186 ssize_t x86_event_sysfs_show(char *page, u64 config, u64 event);
1187 ssize_t intel_event_sysfs_show(char *page, u64 config);
1189 ssize_t events_sysfs_show(struct device *dev, struct device_attribute *attr,
1191 ssize_t events_ht_sysfs_show(struct device *dev, struct device_attribute *attr,
1193 ssize_t events_hybrid_sysfs_show(struct device *dev,
1194 struct device_attribute *attr,
1197 static inline bool fixed_counter_disabled(int i, struct pmu *pmu)
1199 u64 intel_ctrl = hybrid(pmu, intel_ctrl);
1201 return !(intel_ctrl >> (i + INTEL_PMC_IDX_FIXED));
1204 #ifdef CONFIG_CPU_SUP_AMD
1206 int amd_pmu_init(void);
1208 #else /* CONFIG_CPU_SUP_AMD */
1210 static inline int amd_pmu_init(void)
1215 #endif /* CONFIG_CPU_SUP_AMD */
1217 static inline int is_pebs_pt(struct perf_event *event)
1219 return !!(event->hw.flags & PERF_X86_EVENT_PEBS_VIA_PT);
1222 #ifdef CONFIG_CPU_SUP_INTEL
1224 static inline bool intel_pmu_has_bts_period(struct perf_event *event, u64 period)
1226 struct hw_perf_event *hwc = &event->hw;
1227 unsigned int hw_event, bts_event;
1229 if (event->attr.freq)
1232 hw_event = hwc->config & INTEL_ARCH_EVENT_MASK;
1233 bts_event = x86_pmu.event_map(PERF_COUNT_HW_BRANCH_INSTRUCTIONS);
1235 return hw_event == bts_event && period == 1;
1238 static inline bool intel_pmu_has_bts(struct perf_event *event)
1240 struct hw_perf_event *hwc = &event->hw;
1242 return intel_pmu_has_bts_period(event, hwc->sample_period);
1245 static __always_inline void __intel_pmu_pebs_disable_all(void)
1247 wrmsrl(MSR_IA32_PEBS_ENABLE, 0);
1250 static __always_inline void __intel_pmu_arch_lbr_disable(void)
1252 wrmsrl(MSR_ARCH_LBR_CTL, 0);
1255 static __always_inline void __intel_pmu_lbr_disable(void)
1259 rdmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
1260 debugctl &= ~(DEBUGCTLMSR_LBR | DEBUGCTLMSR_FREEZE_LBRS_ON_PMI);
1261 wrmsrl(MSR_IA32_DEBUGCTLMSR, debugctl);
1264 int intel_pmu_save_and_restart(struct perf_event *event);
1266 struct event_constraint *
1267 x86_get_event_constraints(struct cpu_hw_events *cpuc, int idx,
1268 struct perf_event *event);
1270 extern int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu);
1271 extern void intel_cpuc_finish(struct cpu_hw_events *cpuc);
1273 int intel_pmu_init(void);
1275 void init_debug_store_on_cpu(int cpu);
1277 void fini_debug_store_on_cpu(int cpu);
1279 void release_ds_buffers(void);
1281 void reserve_ds_buffers(void);
1283 void release_lbr_buffers(void);
1285 void reserve_lbr_buffers(void);
1287 extern struct event_constraint bts_constraint;
1288 extern struct event_constraint vlbr_constraint;
1290 void intel_pmu_enable_bts(u64 config);
1292 void intel_pmu_disable_bts(void);
1294 int intel_pmu_drain_bts_buffer(void);
1296 extern struct event_constraint intel_core2_pebs_event_constraints[];
1298 extern struct event_constraint intel_atom_pebs_event_constraints[];
1300 extern struct event_constraint intel_slm_pebs_event_constraints[];
1302 extern struct event_constraint intel_glm_pebs_event_constraints[];
1304 extern struct event_constraint intel_glp_pebs_event_constraints[];
1306 extern struct event_constraint intel_grt_pebs_event_constraints[];
1308 extern struct event_constraint intel_nehalem_pebs_event_constraints[];
1310 extern struct event_constraint intel_westmere_pebs_event_constraints[];
1312 extern struct event_constraint intel_snb_pebs_event_constraints[];
1314 extern struct event_constraint intel_ivb_pebs_event_constraints[];
1316 extern struct event_constraint intel_hsw_pebs_event_constraints[];
1318 extern struct event_constraint intel_bdw_pebs_event_constraints[];
1320 extern struct event_constraint intel_skl_pebs_event_constraints[];
1322 extern struct event_constraint intel_icl_pebs_event_constraints[];
1324 extern struct event_constraint intel_spr_pebs_event_constraints[];
1326 struct event_constraint *intel_pebs_constraints(struct perf_event *event);
1328 void intel_pmu_pebs_add(struct perf_event *event);
1330 void intel_pmu_pebs_del(struct perf_event *event);
1332 void intel_pmu_pebs_enable(struct perf_event *event);
1334 void intel_pmu_pebs_disable(struct perf_event *event);
1336 void intel_pmu_pebs_enable_all(void);
1338 void intel_pmu_pebs_disable_all(void);
1340 void intel_pmu_pebs_sched_task(struct perf_event_context *ctx, bool sched_in);
1342 void intel_pmu_auto_reload_read(struct perf_event *event);
1344 void intel_pmu_store_pebs_lbrs(struct lbr_entry *lbr);
1346 void intel_ds_init(void);
1348 void intel_pmu_lbr_swap_task_ctx(struct perf_event_context *prev,
1349 struct perf_event_context *next);
1351 void intel_pmu_lbr_sched_task(struct perf_event_context *ctx, bool sched_in);
1353 u64 lbr_from_signext_quirk_wr(u64 val);
1355 void intel_pmu_lbr_reset(void);
1357 void intel_pmu_lbr_reset_32(void);
1359 void intel_pmu_lbr_reset_64(void);
1361 void intel_pmu_lbr_add(struct perf_event *event);
1363 void intel_pmu_lbr_del(struct perf_event *event);
1365 void intel_pmu_lbr_enable_all(bool pmi);
1367 void intel_pmu_lbr_disable_all(void);
1369 void intel_pmu_lbr_read(void);
1371 void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc);
1373 void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc);
1375 void intel_pmu_lbr_save(void *ctx);
1377 void intel_pmu_lbr_restore(void *ctx);
1379 void intel_pmu_lbr_init_core(void);
1381 void intel_pmu_lbr_init_nhm(void);
1383 void intel_pmu_lbr_init_atom(void);
1385 void intel_pmu_lbr_init_slm(void);
1387 void intel_pmu_lbr_init_snb(void);
1389 void intel_pmu_lbr_init_hsw(void);
1391 void intel_pmu_lbr_init_skl(void);
1393 void intel_pmu_lbr_init_knl(void);
1395 void intel_pmu_arch_lbr_init(void);
1397 void intel_pmu_pebs_data_source_nhm(void);
1399 void intel_pmu_pebs_data_source_skl(bool pmem);
1401 int intel_pmu_setup_lbr_filter(struct perf_event *event);
1403 void intel_pt_interrupt(void);
1405 int intel_bts_interrupt(void);
1407 void intel_bts_enable_local(void);
1409 void intel_bts_disable_local(void);
1411 int p4_pmu_init(void);
1413 int p6_pmu_init(void);
1415 int knc_pmu_init(void);
1417 static inline int is_ht_workaround_enabled(void)
1419 return !!(x86_pmu.flags & PMU_FL_EXCL_ENABLED);
1422 #else /* CONFIG_CPU_SUP_INTEL */
1424 static inline void reserve_ds_buffers(void)
1428 static inline void release_ds_buffers(void)
1432 static inline void release_lbr_buffers(void)
1436 static inline void reserve_lbr_buffers(void)
1440 static inline int intel_pmu_init(void)
1445 static inline int intel_cpuc_prepare(struct cpu_hw_events *cpuc, int cpu)
1450 static inline void intel_cpuc_finish(struct cpu_hw_events *cpuc)
1454 static inline int is_ht_workaround_enabled(void)
1458 #endif /* CONFIG_CPU_SUP_INTEL */
1460 #if ((defined CONFIG_CPU_SUP_CENTAUR) || (defined CONFIG_CPU_SUP_ZHAOXIN))
1461 int zhaoxin_pmu_init(void);
1463 static inline int zhaoxin_pmu_init(void)
1467 #endif /*CONFIG_CPU_SUP_CENTAUR or CONFIG_CPU_SUP_ZHAOXIN*/