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- /* SPDX-License-Identifier: GPL-2.0 */
- #ifndef _ASM_X86_PERF_EVENT_H
- #define _ASM_X86_PERF_EVENT_H
- #include <linux/static_call.h>
- /*
- * Performance event hw details:
- */
- #define INTEL_PMC_MAX_GENERIC 32
- #define INTEL_PMC_MAX_FIXED 16
- #define INTEL_PMC_IDX_FIXED 32
- #define X86_PMC_IDX_MAX 64
- #define MSR_ARCH_PERFMON_PERFCTR0 0xc1
- #define MSR_ARCH_PERFMON_PERFCTR1 0xc2
- #define MSR_ARCH_PERFMON_EVENTSEL0 0x186
- #define MSR_ARCH_PERFMON_EVENTSEL1 0x187
- #define ARCH_PERFMON_EVENTSEL_EVENT 0x000000FFULL
- #define ARCH_PERFMON_EVENTSEL_UMASK 0x0000FF00ULL
- #define ARCH_PERFMON_EVENTSEL_USR (1ULL << 16)
- #define ARCH_PERFMON_EVENTSEL_OS (1ULL << 17)
- #define ARCH_PERFMON_EVENTSEL_EDGE (1ULL << 18)
- #define ARCH_PERFMON_EVENTSEL_PIN_CONTROL (1ULL << 19)
- #define ARCH_PERFMON_EVENTSEL_INT (1ULL << 20)
- #define ARCH_PERFMON_EVENTSEL_ANY (1ULL << 21)
- #define ARCH_PERFMON_EVENTSEL_ENABLE (1ULL << 22)
- #define ARCH_PERFMON_EVENTSEL_INV (1ULL << 23)
- #define ARCH_PERFMON_EVENTSEL_CMASK 0xFF000000ULL
- #define HSW_IN_TX (1ULL << 32)
- #define HSW_IN_TX_CHECKPOINTED (1ULL << 33)
- #define ICL_EVENTSEL_ADAPTIVE (1ULL << 34)
- #define ICL_FIXED_0_ADAPTIVE (1ULL << 32)
- #define AMD64_EVENTSEL_INT_CORE_ENABLE (1ULL << 36)
- #define AMD64_EVENTSEL_GUESTONLY (1ULL << 40)
- #define AMD64_EVENTSEL_HOSTONLY (1ULL << 41)
- #define AMD64_EVENTSEL_INT_CORE_SEL_SHIFT 37
- #define AMD64_EVENTSEL_INT_CORE_SEL_MASK \
- (0xFULL << AMD64_EVENTSEL_INT_CORE_SEL_SHIFT)
- #define AMD64_EVENTSEL_EVENT \
- (ARCH_PERFMON_EVENTSEL_EVENT | (0x0FULL << 32))
- #define INTEL_ARCH_EVENT_MASK \
- (ARCH_PERFMON_EVENTSEL_UMASK | ARCH_PERFMON_EVENTSEL_EVENT)
- #define AMD64_L3_SLICE_SHIFT 48
- #define AMD64_L3_SLICE_MASK \
- (0xFULL << AMD64_L3_SLICE_SHIFT)
- #define AMD64_L3_SLICEID_MASK \
- (0x7ULL << AMD64_L3_SLICE_SHIFT)
- #define AMD64_L3_THREAD_SHIFT 56
- #define AMD64_L3_THREAD_MASK \
- (0xFFULL << AMD64_L3_THREAD_SHIFT)
- #define AMD64_L3_F19H_THREAD_MASK \
- (0x3ULL << AMD64_L3_THREAD_SHIFT)
- #define AMD64_L3_EN_ALL_CORES BIT_ULL(47)
- #define AMD64_L3_EN_ALL_SLICES BIT_ULL(46)
- #define AMD64_L3_COREID_SHIFT 42
- #define AMD64_L3_COREID_MASK \
- (0x7ULL << AMD64_L3_COREID_SHIFT)
- #define X86_RAW_EVENT_MASK \
- (ARCH_PERFMON_EVENTSEL_EVENT | \
- ARCH_PERFMON_EVENTSEL_UMASK | \
- ARCH_PERFMON_EVENTSEL_EDGE | \
- ARCH_PERFMON_EVENTSEL_INV | \
- ARCH_PERFMON_EVENTSEL_CMASK)
- #define X86_ALL_EVENT_FLAGS \
- (ARCH_PERFMON_EVENTSEL_EDGE | \
- ARCH_PERFMON_EVENTSEL_INV | \
- ARCH_PERFMON_EVENTSEL_CMASK | \
- ARCH_PERFMON_EVENTSEL_ANY | \
- ARCH_PERFMON_EVENTSEL_PIN_CONTROL | \
- HSW_IN_TX | \
- HSW_IN_TX_CHECKPOINTED)
- #define AMD64_RAW_EVENT_MASK \
- (X86_RAW_EVENT_MASK | \
- AMD64_EVENTSEL_EVENT)
- #define AMD64_RAW_EVENT_MASK_NB \
- (AMD64_EVENTSEL_EVENT | \
- ARCH_PERFMON_EVENTSEL_UMASK)
- #define AMD64_PERFMON_V2_EVENTSEL_EVENT_NB \
- (AMD64_EVENTSEL_EVENT | \
- GENMASK_ULL(37, 36))
- #define AMD64_PERFMON_V2_EVENTSEL_UMASK_NB \
- (ARCH_PERFMON_EVENTSEL_UMASK | \
- GENMASK_ULL(27, 24))
- #define AMD64_PERFMON_V2_RAW_EVENT_MASK_NB \
- (AMD64_PERFMON_V2_EVENTSEL_EVENT_NB | \
- AMD64_PERFMON_V2_EVENTSEL_UMASK_NB)
- #define AMD64_NUM_COUNTERS 4
- #define AMD64_NUM_COUNTERS_CORE 6
- #define AMD64_NUM_COUNTERS_NB 4
- #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c
- #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8)
- #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX 0
- #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \
- (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX))
- #define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6
- #define ARCH_PERFMON_EVENTS_COUNT 7
- #define PEBS_DATACFG_MEMINFO BIT_ULL(0)
- #define PEBS_DATACFG_GP BIT_ULL(1)
- #define PEBS_DATACFG_XMMS BIT_ULL(2)
- #define PEBS_DATACFG_LBRS BIT_ULL(3)
- #define PEBS_DATACFG_LBR_SHIFT 24
- /*
- * Intel "Architectural Performance Monitoring" CPUID
- * detection/enumeration details:
- */
- union cpuid10_eax {
- struct {
- unsigned int version_id:8;
- unsigned int num_counters:8;
- unsigned int bit_width:8;
- unsigned int mask_length:8;
- } split;
- unsigned int full;
- };
- union cpuid10_ebx {
- struct {
- unsigned int no_unhalted_core_cycles:1;
- unsigned int no_instructions_retired:1;
- unsigned int no_unhalted_reference_cycles:1;
- unsigned int no_llc_reference:1;
- unsigned int no_llc_misses:1;
- unsigned int no_branch_instruction_retired:1;
- unsigned int no_branch_misses_retired:1;
- } split;
- unsigned int full;
- };
- union cpuid10_edx {
- struct {
- unsigned int num_counters_fixed:5;
- unsigned int bit_width_fixed:8;
- unsigned int reserved1:2;
- unsigned int anythread_deprecated:1;
- unsigned int reserved2:16;
- } split;
- unsigned int full;
- };
- /*
- * Intel Architectural LBR CPUID detection/enumeration details:
- */
- union cpuid28_eax {
- struct {
- /* Supported LBR depth values */
- unsigned int lbr_depth_mask:8;
- unsigned int reserved:22;
- /* Deep C-state Reset */
- unsigned int lbr_deep_c_reset:1;
- /* IP values contain LIP */
- unsigned int lbr_lip:1;
- } split;
- unsigned int full;
- };
- union cpuid28_ebx {
- struct {
- /* CPL Filtering Supported */
- unsigned int lbr_cpl:1;
- /* Branch Filtering Supported */
- unsigned int lbr_filter:1;
- /* Call-stack Mode Supported */
- unsigned int lbr_call_stack:1;
- } split;
- unsigned int full;
- };
- union cpuid28_ecx {
- struct {
- /* Mispredict Bit Supported */
- unsigned int lbr_mispred:1;
- /* Timed LBRs Supported */
- unsigned int lbr_timed_lbr:1;
- /* Branch Type Field Supported */
- unsigned int lbr_br_type:1;
- } split;
- unsigned int full;
- };
- /*
- * AMD "Extended Performance Monitoring and Debug" CPUID
- * detection/enumeration details:
- */
- union cpuid_0x80000022_ebx {
- struct {
- /* Number of Core Performance Counters */
- unsigned int num_core_pmc:4;
- /* Number of available LBR Stack Entries */
- unsigned int lbr_v2_stack_sz:6;
- /* Number of Data Fabric Counters */
- unsigned int num_df_pmc:6;
- } split;
- unsigned int full;
- };
- struct x86_pmu_capability {
- int version;
- int num_counters_gp;
- int num_counters_fixed;
- int bit_width_gp;
- int bit_width_fixed;
- unsigned int events_mask;
- int events_mask_len;
- unsigned int pebs_ept :1;
- };
- /*
- * Fixed-purpose performance events:
- */
- /* RDPMC offset for Fixed PMCs */
- #define INTEL_PMC_FIXED_RDPMC_BASE (1 << 30)
- #define INTEL_PMC_FIXED_RDPMC_METRICS (1 << 29)
- /*
- * All the fixed-mode PMCs are configured via this single MSR:
- */
- #define MSR_ARCH_PERFMON_FIXED_CTR_CTRL 0x38d
- /*
- * There is no event-code assigned to the fixed-mode PMCs.
- *
- * For a fixed-mode PMC, which has an equivalent event on a general-purpose
- * PMC, the event-code of the equivalent event is used for the fixed-mode PMC,
- * e.g., Instr_Retired.Any and CPU_CLK_Unhalted.Core.
- *
- * For a fixed-mode PMC, which doesn't have an equivalent event, a
- * pseudo-encoding is used, e.g., CPU_CLK_Unhalted.Ref and TOPDOWN.SLOTS.
- * The pseudo event-code for a fixed-mode PMC must be 0x00.
- * The pseudo umask-code is 0xX. The X equals the index of the fixed
- * counter + 1, e.g., the fixed counter 2 has the pseudo-encoding 0x0300.
- *
- * The counts are available in separate MSRs:
- */
- /* Instr_Retired.Any: */
- #define MSR_ARCH_PERFMON_FIXED_CTR0 0x309
- #define INTEL_PMC_IDX_FIXED_INSTRUCTIONS (INTEL_PMC_IDX_FIXED + 0)
- /* CPU_CLK_Unhalted.Core: */
- #define MSR_ARCH_PERFMON_FIXED_CTR1 0x30a
- #define INTEL_PMC_IDX_FIXED_CPU_CYCLES (INTEL_PMC_IDX_FIXED + 1)
- /* CPU_CLK_Unhalted.Ref: event=0x00,umask=0x3 (pseudo-encoding) */
- #define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b
- #define INTEL_PMC_IDX_FIXED_REF_CYCLES (INTEL_PMC_IDX_FIXED + 2)
- #define INTEL_PMC_MSK_FIXED_REF_CYCLES (1ULL << INTEL_PMC_IDX_FIXED_REF_CYCLES)
- /* TOPDOWN.SLOTS: event=0x00,umask=0x4 (pseudo-encoding) */
- #define MSR_ARCH_PERFMON_FIXED_CTR3 0x30c
- #define INTEL_PMC_IDX_FIXED_SLOTS (INTEL_PMC_IDX_FIXED + 3)
- #define INTEL_PMC_MSK_FIXED_SLOTS (1ULL << INTEL_PMC_IDX_FIXED_SLOTS)
- static inline bool use_fixed_pseudo_encoding(u64 code)
- {
- return !(code & 0xff);
- }
- /*
- * We model BTS tracing as another fixed-mode PMC.
- *
- * We choose the value 47 for the fixed index of BTS, since lower
- * values are used by actual fixed events and higher values are used
- * to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
- */
- #define INTEL_PMC_IDX_FIXED_BTS (INTEL_PMC_IDX_FIXED + 15)
- /*
- * The PERF_METRICS MSR is modeled as several magic fixed-mode PMCs, one for
- * each TopDown metric event.
- *
- * Internally the TopDown metric events are mapped to the FxCtr 3 (SLOTS).
- */
- #define INTEL_PMC_IDX_METRIC_BASE (INTEL_PMC_IDX_FIXED + 16)
- #define INTEL_PMC_IDX_TD_RETIRING (INTEL_PMC_IDX_METRIC_BASE + 0)
- #define INTEL_PMC_IDX_TD_BAD_SPEC (INTEL_PMC_IDX_METRIC_BASE + 1)
- #define INTEL_PMC_IDX_TD_FE_BOUND (INTEL_PMC_IDX_METRIC_BASE + 2)
- #define INTEL_PMC_IDX_TD_BE_BOUND (INTEL_PMC_IDX_METRIC_BASE + 3)
- #define INTEL_PMC_IDX_TD_HEAVY_OPS (INTEL_PMC_IDX_METRIC_BASE + 4)
- #define INTEL_PMC_IDX_TD_BR_MISPREDICT (INTEL_PMC_IDX_METRIC_BASE + 5)
- #define INTEL_PMC_IDX_TD_FETCH_LAT (INTEL_PMC_IDX_METRIC_BASE + 6)
- #define INTEL_PMC_IDX_TD_MEM_BOUND (INTEL_PMC_IDX_METRIC_BASE + 7)
- #define INTEL_PMC_IDX_METRIC_END INTEL_PMC_IDX_TD_MEM_BOUND
- #define INTEL_PMC_MSK_TOPDOWN ((0xffull << INTEL_PMC_IDX_METRIC_BASE) | \
- INTEL_PMC_MSK_FIXED_SLOTS)
- /*
- * There is no event-code assigned to the TopDown events.
- *
- * For the slots event, use the pseudo code of the fixed counter 3.
- *
- * For the metric events, the pseudo event-code is 0x00.
- * The pseudo umask-code starts from the middle of the pseudo event
- * space, 0x80.
- */
- #define INTEL_TD_SLOTS 0x0400 /* TOPDOWN.SLOTS */
- /* Level 1 metrics */
- #define INTEL_TD_METRIC_RETIRING 0x8000 /* Retiring metric */
- #define INTEL_TD_METRIC_BAD_SPEC 0x8100 /* Bad speculation metric */
- #define INTEL_TD_METRIC_FE_BOUND 0x8200 /* FE bound metric */
- #define INTEL_TD_METRIC_BE_BOUND 0x8300 /* BE bound metric */
- /* Level 2 metrics */
- #define INTEL_TD_METRIC_HEAVY_OPS 0x8400 /* Heavy Operations metric */
- #define INTEL_TD_METRIC_BR_MISPREDICT 0x8500 /* Branch Mispredict metric */
- #define INTEL_TD_METRIC_FETCH_LAT 0x8600 /* Fetch Latency metric */
- #define INTEL_TD_METRIC_MEM_BOUND 0x8700 /* Memory bound metric */
- #define INTEL_TD_METRIC_MAX INTEL_TD_METRIC_MEM_BOUND
- #define INTEL_TD_METRIC_NUM 8
- static inline bool is_metric_idx(int idx)
- {
- return (unsigned)(idx - INTEL_PMC_IDX_METRIC_BASE) < INTEL_TD_METRIC_NUM;
- }
- static inline bool is_topdown_idx(int idx)
- {
- return is_metric_idx(idx) || idx == INTEL_PMC_IDX_FIXED_SLOTS;
- }
- #define INTEL_PMC_OTHER_TOPDOWN_BITS(bit) \
- (~(0x1ull << bit) & INTEL_PMC_MSK_TOPDOWN)
- #define GLOBAL_STATUS_COND_CHG BIT_ULL(63)
- #define GLOBAL_STATUS_BUFFER_OVF_BIT 62
- #define GLOBAL_STATUS_BUFFER_OVF BIT_ULL(GLOBAL_STATUS_BUFFER_OVF_BIT)
- #define GLOBAL_STATUS_UNC_OVF BIT_ULL(61)
- #define GLOBAL_STATUS_ASIF BIT_ULL(60)
- #define GLOBAL_STATUS_COUNTERS_FROZEN BIT_ULL(59)
- #define GLOBAL_STATUS_LBRS_FROZEN_BIT 58
- #define GLOBAL_STATUS_LBRS_FROZEN BIT_ULL(GLOBAL_STATUS_LBRS_FROZEN_BIT)
- #define GLOBAL_STATUS_TRACE_TOPAPMI_BIT 55
- #define GLOBAL_STATUS_TRACE_TOPAPMI BIT_ULL(GLOBAL_STATUS_TRACE_TOPAPMI_BIT)
- #define GLOBAL_STATUS_PERF_METRICS_OVF_BIT 48
- #define GLOBAL_CTRL_EN_PERF_METRICS 48
- /*
- * We model guest LBR event tracing as another fixed-mode PMC like BTS.
- *
- * We choose bit 58 because it's used to indicate LBR stack frozen state
- * for architectural perfmon v4, also we unconditionally mask that bit in
- * the handle_pmi_common(), so it'll never be set in the overflow handling.
- *
- * With this fake counter assigned, the guest LBR event user (such as KVM),
- * can program the LBR registers on its own, and we don't actually do anything
- * with then in the host context.
- */
- #define INTEL_PMC_IDX_FIXED_VLBR (GLOBAL_STATUS_LBRS_FROZEN_BIT)
- /*
- * Pseudo-encoding the guest LBR event as event=0x00,umask=0x1b,
- * since it would claim bit 58 which is effectively Fixed26.
- */
- #define INTEL_FIXED_VLBR_EVENT 0x1b00
- /*
- * Adaptive PEBS v4
- */
- struct pebs_basic {
- u64 format_size;
- u64 ip;
- u64 applicable_counters;
- u64 tsc;
- };
- struct pebs_meminfo {
- u64 address;
- u64 aux;
- u64 latency;
- u64 tsx_tuning;
- };
- struct pebs_gprs {
- u64 flags, ip, ax, cx, dx, bx, sp, bp, si, di;
- u64 r8, r9, r10, r11, r12, r13, r14, r15;
- };
- struct pebs_xmm {
- u64 xmm[16*2]; /* two entries for each register */
- };
- /*
- * AMD Extended Performance Monitoring and Debug cpuid feature detection
- */
- #define EXT_PERFMON_DEBUG_FEATURES 0x80000022
- /*
- * IBS cpuid feature detection
- */
- #define IBS_CPUID_FEATURES 0x8000001b
- /*
- * Same bit mask as for IBS cpuid feature flags (Fn8000_001B_EAX), but
- * bit 0 is used to indicate the existence of IBS.
- */
- #define IBS_CAPS_AVAIL (1U<<0)
- #define IBS_CAPS_FETCHSAM (1U<<1)
- #define IBS_CAPS_OPSAM (1U<<2)
- #define IBS_CAPS_RDWROPCNT (1U<<3)
- #define IBS_CAPS_OPCNT (1U<<4)
- #define IBS_CAPS_BRNTRGT (1U<<5)
- #define IBS_CAPS_OPCNTEXT (1U<<6)
- #define IBS_CAPS_RIPINVALIDCHK (1U<<7)
- #define IBS_CAPS_OPBRNFUSE (1U<<8)
- #define IBS_CAPS_FETCHCTLEXTD (1U<<9)
- #define IBS_CAPS_OPDATA4 (1U<<10)
- #define IBS_CAPS_ZEN4 (1U<<11)
- #define IBS_CAPS_DEFAULT (IBS_CAPS_AVAIL \
- | IBS_CAPS_FETCHSAM \
- | IBS_CAPS_OPSAM)
- /*
- * IBS APIC setup
- */
- #define IBSCTL 0x1cc
- #define IBSCTL_LVT_OFFSET_VALID (1ULL<<8)
- #define IBSCTL_LVT_OFFSET_MASK 0x0F
- /* IBS fetch bits/masks */
- #define IBS_FETCH_L3MISSONLY (1ULL<<59)
- #define IBS_FETCH_RAND_EN (1ULL<<57)
- #define IBS_FETCH_VAL (1ULL<<49)
- #define IBS_FETCH_ENABLE (1ULL<<48)
- #define IBS_FETCH_CNT 0xFFFF0000ULL
- #define IBS_FETCH_MAX_CNT 0x0000FFFFULL
- /*
- * IBS op bits/masks
- * The lower 7 bits of the current count are random bits
- * preloaded by hardware and ignored in software
- */
- #define IBS_OP_CUR_CNT (0xFFF80ULL<<32)
- #define IBS_OP_CUR_CNT_RAND (0x0007FULL<<32)
- #define IBS_OP_CNT_CTL (1ULL<<19)
- #define IBS_OP_VAL (1ULL<<18)
- #define IBS_OP_ENABLE (1ULL<<17)
- #define IBS_OP_L3MISSONLY (1ULL<<16)
- #define IBS_OP_MAX_CNT 0x0000FFFFULL
- #define IBS_OP_MAX_CNT_EXT 0x007FFFFFULL /* not a register bit mask */
- #define IBS_OP_MAX_CNT_EXT_MASK (0x7FULL<<20) /* separate upper 7 bits */
- #define IBS_RIP_INVALID (1ULL<<38)
- #ifdef CONFIG_X86_LOCAL_APIC
- extern u32 get_ibs_caps(void);
- extern int forward_event_to_ibs(struct perf_event *event);
- #else
- static inline u32 get_ibs_caps(void) { return 0; }
- static inline int forward_event_to_ibs(struct perf_event *event) { return -ENOENT; }
- #endif
- #ifdef CONFIG_PERF_EVENTS
- extern void perf_events_lapic_init(void);
- /*
- * Abuse bits {3,5} of the cpu eflags register. These flags are otherwise
- * unused and ABI specified to be 0, so nobody should care what we do with
- * them.
- *
- * EXACT - the IP points to the exact instruction that triggered the
- * event (HW bugs exempt).
- * VM - original X86_VM_MASK; see set_linear_ip().
- */
- #define PERF_EFLAGS_EXACT (1UL << 3)
- #define PERF_EFLAGS_VM (1UL << 5)
- struct pt_regs;
- struct x86_perf_regs {
- struct pt_regs regs;
- u64 *xmm_regs;
- };
- extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
- extern unsigned long perf_misc_flags(struct pt_regs *regs);
- #define perf_misc_flags(regs) perf_misc_flags(regs)
- #include <asm/stacktrace.h>
- /*
- * We abuse bit 3 from flags to pass exact information, see perf_misc_flags
- * and the comment with PERF_EFLAGS_EXACT.
- */
- #define perf_arch_fetch_caller_regs(regs, __ip) { \
- (regs)->ip = (__ip); \
- (regs)->sp = (unsigned long)__builtin_frame_address(0); \
- (regs)->cs = __KERNEL_CS; \
- regs->flags = 0; \
- }
- struct perf_guest_switch_msr {
- unsigned msr;
- u64 host, guest;
- };
- struct x86_pmu_lbr {
- unsigned int nr;
- unsigned int from;
- unsigned int to;
- unsigned int info;
- };
- extern void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap);
- extern u64 perf_get_hw_event_config(int hw_event);
- extern void perf_check_microcode(void);
- extern void perf_clear_dirty_counters(void);
- extern int x86_perf_rdpmc_index(struct perf_event *event);
- #else
- static inline void perf_get_x86_pmu_capability(struct x86_pmu_capability *cap)
- {
- memset(cap, 0, sizeof(*cap));
- }
- static inline u64 perf_get_hw_event_config(int hw_event)
- {
- return 0;
- }
- static inline void perf_events_lapic_init(void) { }
- static inline void perf_check_microcode(void) { }
- #endif
- #if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_INTEL)
- extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data);
- extern void x86_perf_get_lbr(struct x86_pmu_lbr *lbr);
- #else
- struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr, void *data);
- static inline void x86_perf_get_lbr(struct x86_pmu_lbr *lbr)
- {
- memset(lbr, 0, sizeof(*lbr));
- }
- #endif
- #ifdef CONFIG_CPU_SUP_INTEL
- extern void intel_pt_handle_vmx(int on);
- #else
- static inline void intel_pt_handle_vmx(int on)
- {
- }
- #endif
- #if defined(CONFIG_PERF_EVENTS) && defined(CONFIG_CPU_SUP_AMD)
- extern void amd_pmu_enable_virt(void);
- extern void amd_pmu_disable_virt(void);
- #if defined(CONFIG_PERF_EVENTS_AMD_BRS)
- #define PERF_NEEDS_LOPWR_CB 1
- /*
- * architectural low power callback impacts
- * drivers/acpi/processor_idle.c
- * drivers/acpi/acpi_pad.c
- */
- extern void perf_amd_brs_lopwr_cb(bool lopwr_in);
- DECLARE_STATIC_CALL(perf_lopwr_cb, perf_amd_brs_lopwr_cb);
- static inline void perf_lopwr_cb(bool lopwr_in)
- {
- static_call_mod(perf_lopwr_cb)(lopwr_in);
- }
- #endif /* PERF_NEEDS_LOPWR_CB */
- #else
- static inline void amd_pmu_enable_virt(void) { }
- static inline void amd_pmu_disable_virt(void) { }
- #endif
- #define arch_perf_out_copy_user copy_from_user_nmi
- #endif /* _ASM_X86_PERF_EVENT_H */
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