Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / arch / x86 / include / asm / perf_event.h
blobf61c62f7d5d8252d2984c8231fec0c6409f4e83e
1 #ifndef _ASM_X86_PERF_EVENT_H
2 #define _ASM_X86_PERF_EVENT_H
4 /*
5 * Performance event hw details:
6 */
8 #define X86_PMC_MAX_GENERIC 32
9 #define X86_PMC_MAX_FIXED 3
11 #define X86_PMC_IDX_GENERIC 0
12 #define X86_PMC_IDX_FIXED 32
13 #define X86_PMC_IDX_MAX 64
15 #define MSR_ARCH_PERFMON_PERFCTR0 0xc1
16 #define MSR_ARCH_PERFMON_PERFCTR1 0xc2
18 #define MSR_ARCH_PERFMON_EVENTSEL0 0x186
19 #define MSR_ARCH_PERFMON_EVENTSEL1 0x187
21 #define ARCH_PERFMON_EVENTSEL_EVENT 0x000000FFULL
22 #define ARCH_PERFMON_EVENTSEL_UMASK 0x0000FF00ULL
23 #define ARCH_PERFMON_EVENTSEL_USR (1ULL << 16)
24 #define ARCH_PERFMON_EVENTSEL_OS (1ULL << 17)
25 #define ARCH_PERFMON_EVENTSEL_EDGE (1ULL << 18)
26 #define ARCH_PERFMON_EVENTSEL_INT (1ULL << 20)
27 #define ARCH_PERFMON_EVENTSEL_ANY (1ULL << 21)
28 #define ARCH_PERFMON_EVENTSEL_ENABLE (1ULL << 22)
29 #define ARCH_PERFMON_EVENTSEL_INV (1ULL << 23)
30 #define ARCH_PERFMON_EVENTSEL_CMASK 0xFF000000ULL
32 #define AMD_PERFMON_EVENTSEL_GUESTONLY (1ULL << 40)
33 #define AMD_PERFMON_EVENTSEL_HOSTONLY (1ULL << 41)
35 #define AMD64_EVENTSEL_EVENT \
36 (ARCH_PERFMON_EVENTSEL_EVENT | (0x0FULL << 32))
37 #define INTEL_ARCH_EVENT_MASK \
38 (ARCH_PERFMON_EVENTSEL_UMASK | ARCH_PERFMON_EVENTSEL_EVENT)
40 #define X86_RAW_EVENT_MASK \
41 (ARCH_PERFMON_EVENTSEL_EVENT | \
42 ARCH_PERFMON_EVENTSEL_UMASK | \
43 ARCH_PERFMON_EVENTSEL_EDGE | \
44 ARCH_PERFMON_EVENTSEL_INV | \
45 ARCH_PERFMON_EVENTSEL_CMASK)
46 #define AMD64_RAW_EVENT_MASK \
47 (X86_RAW_EVENT_MASK | \
48 AMD64_EVENTSEL_EVENT)
49 #define AMD64_NUM_COUNTERS 4
50 #define AMD64_NUM_COUNTERS_F15H 6
51 #define AMD64_NUM_COUNTERS_MAX AMD64_NUM_COUNTERS_F15H
53 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_SEL 0x3c
54 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_UMASK (0x00 << 8)
55 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX 0
56 #define ARCH_PERFMON_UNHALTED_CORE_CYCLES_PRESENT \
57 (1 << (ARCH_PERFMON_UNHALTED_CORE_CYCLES_INDEX))
59 #define ARCH_PERFMON_BRANCH_MISSES_RETIRED 6
62 * Intel "Architectural Performance Monitoring" CPUID
63 * detection/enumeration details:
65 union cpuid10_eax {
66 struct {
67 unsigned int version_id:8;
68 unsigned int num_counters:8;
69 unsigned int bit_width:8;
70 unsigned int mask_length:8;
71 } split;
72 unsigned int full;
75 union cpuid10_edx {
76 struct {
77 unsigned int num_counters_fixed:5;
78 unsigned int bit_width_fixed:8;
79 unsigned int reserved:19;
80 } split;
81 unsigned int full;
86 * Fixed-purpose performance events:
90 * All 3 fixed-mode PMCs are configured via this single MSR:
92 #define MSR_ARCH_PERFMON_FIXED_CTR_CTRL 0x38d
95 * The counts are available in three separate MSRs:
98 /* Instr_Retired.Any: */
99 #define MSR_ARCH_PERFMON_FIXED_CTR0 0x309
100 #define X86_PMC_IDX_FIXED_INSTRUCTIONS (X86_PMC_IDX_FIXED + 0)
102 /* CPU_CLK_Unhalted.Core: */
103 #define MSR_ARCH_PERFMON_FIXED_CTR1 0x30a
104 #define X86_PMC_IDX_FIXED_CPU_CYCLES (X86_PMC_IDX_FIXED + 1)
106 /* CPU_CLK_Unhalted.Ref: */
107 #define MSR_ARCH_PERFMON_FIXED_CTR2 0x30b
108 #define X86_PMC_IDX_FIXED_BUS_CYCLES (X86_PMC_IDX_FIXED + 2)
111 * We model BTS tracing as another fixed-mode PMC.
113 * We choose a value in the middle of the fixed event range, since lower
114 * values are used by actual fixed events and higher values are used
115 * to indicate other overflow conditions in the PERF_GLOBAL_STATUS msr.
117 #define X86_PMC_IDX_FIXED_BTS (X86_PMC_IDX_FIXED + 16)
120 * IBS cpuid feature detection
123 #define IBS_CPUID_FEATURES 0x8000001b
126 * Same bit mask as for IBS cpuid feature flags (Fn8000_001B_EAX), but
127 * bit 0 is used to indicate the existence of IBS.
129 #define IBS_CAPS_AVAIL (1U<<0)
130 #define IBS_CAPS_FETCHSAM (1U<<1)
131 #define IBS_CAPS_OPSAM (1U<<2)
132 #define IBS_CAPS_RDWROPCNT (1U<<3)
133 #define IBS_CAPS_OPCNT (1U<<4)
134 #define IBS_CAPS_BRNTRGT (1U<<5)
135 #define IBS_CAPS_OPCNTEXT (1U<<6)
137 #define IBS_CAPS_DEFAULT (IBS_CAPS_AVAIL \
138 | IBS_CAPS_FETCHSAM \
139 | IBS_CAPS_OPSAM)
142 * IBS APIC setup
144 #define IBSCTL 0x1cc
145 #define IBSCTL_LVT_OFFSET_VALID (1ULL<<8)
146 #define IBSCTL_LVT_OFFSET_MASK 0x0F
148 /* IbsFetchCtl bits/masks */
149 #define IBS_FETCH_RAND_EN (1ULL<<57)
150 #define IBS_FETCH_VAL (1ULL<<49)
151 #define IBS_FETCH_ENABLE (1ULL<<48)
152 #define IBS_FETCH_CNT 0xFFFF0000ULL
153 #define IBS_FETCH_MAX_CNT 0x0000FFFFULL
155 /* IbsOpCtl bits */
156 #define IBS_OP_CNT_CTL (1ULL<<19)
157 #define IBS_OP_VAL (1ULL<<18)
158 #define IBS_OP_ENABLE (1ULL<<17)
159 #define IBS_OP_MAX_CNT 0x0000FFFFULL
160 #define IBS_OP_MAX_CNT_EXT 0x007FFFFFULL /* not a register bit mask */
162 extern u32 get_ibs_caps(void);
164 #ifdef CONFIG_PERF_EVENTS
165 extern void perf_events_lapic_init(void);
167 #define PERF_EVENT_INDEX_OFFSET 0
170 * Abuse bit 3 of the cpu eflags register to indicate proper PEBS IP fixups.
171 * This flag is otherwise unused and ABI specified to be 0, so nobody should
172 * care what we do with it.
174 #define PERF_EFLAGS_EXACT (1UL << 3)
176 struct pt_regs;
177 extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
178 extern unsigned long perf_misc_flags(struct pt_regs *regs);
179 #define perf_misc_flags(regs) perf_misc_flags(regs)
181 #include <asm/stacktrace.h>
184 * We abuse bit 3 from flags to pass exact information, see perf_misc_flags
185 * and the comment with PERF_EFLAGS_EXACT.
187 #define perf_arch_fetch_caller_regs(regs, __ip) { \
188 (regs)->ip = (__ip); \
189 (regs)->bp = caller_frame_pointer(); \
190 (regs)->cs = __KERNEL_CS; \
191 regs->flags = 0; \
192 asm volatile( \
193 _ASM_MOV "%%"_ASM_SP ", %0\n" \
194 : "=m" ((regs)->sp) \
195 :: "memory" \
196 ); \
199 struct perf_guest_switch_msr {
200 unsigned msr;
201 u64 host, guest;
204 extern struct perf_guest_switch_msr *perf_guest_get_msrs(int *nr);
205 #else
206 static inline perf_guest_switch_msr *perf_guest_get_msrs(int *nr)
208 *nr = 0;
209 return NULL;
212 static inline void perf_events_lapic_init(void) { }
213 #endif
215 #endif /* _ASM_X86_PERF_EVENT_H */