1 #ifndef _PERF_PERF_H 2 #define _PERF_PERF_H 3 4 struct winsize; 5 6 void get_term_dimensions(struct winsize *ws); 7 8 #include <asm/unistd.h> 9 10 #if defined(__i386__) 11 #define rmb() asm volatile("lock; addl $0,0(%%esp)" ::: "memory") 12 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 13 #define CPUINFO_PROC "model name" 14 #ifndef __NR_perf_event_open 15 # define __NR_perf_event_open 336 16 #endif 17 #endif 18 19 #if defined(__x86_64__) 20 #define rmb() asm volatile("lfence" ::: "memory") 21 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 22 #define CPUINFO_PROC "model name" 23 #ifndef __NR_perf_event_open 24 # define __NR_perf_event_open 298 25 #endif 26 #endif 27 28 #ifdef __powerpc__ 29 #define rmb() asm volatile ("sync" ::: "memory") 30 #define cpu_relax() asm volatile ("" ::: "memory"); 31 #define CPUINFO_PROC "cpu" 32 #endif 33 34 #ifdef __s390__ 35 #define rmb() asm volatile("bcr 15,0" ::: "memory") 36 #define cpu_relax() asm volatile("" ::: "memory"); 37 #endif 38 39 #ifdef __sh__ 40 #if defined(__SH4A__) || defined(__SH5__) 41 # define rmb() asm volatile("synco" ::: "memory") 42 #else 43 # define rmb() asm volatile("" ::: "memory") 44 #endif 45 #define cpu_relax() asm volatile("" ::: "memory") 46 #define CPUINFO_PROC "cpu type" 47 #endif 48 49 #ifdef __hppa__ 50 #define rmb() asm volatile("" ::: "memory") 51 #define cpu_relax() asm volatile("" ::: "memory"); 52 #define CPUINFO_PROC "cpu" 53 #endif 54 55 #ifdef __sparc__ 56 #define rmb() asm volatile("":::"memory") 57 #define cpu_relax() asm volatile("":::"memory") 58 #define CPUINFO_PROC "cpu" 59 #endif 60 61 #ifdef __alpha__ 62 #define rmb() asm volatile("mb" ::: "memory") 63 #define cpu_relax() asm volatile("" ::: "memory") 64 #define CPUINFO_PROC "cpu model" 65 #endif 66 67 #ifdef __ia64__ 68 #define rmb() asm volatile ("mf" ::: "memory") 69 #define cpu_relax() asm volatile ("hint @pause" ::: "memory") 70 #define CPUINFO_PROC "model name" 71 #endif 72 73 #ifdef __arm__ 74 /* 75 * Use the __kuser_memory_barrier helper in the CPU helper page. See 76 * arch/arm/kernel/entry-armv.S in the kernel source for details. 77 */ 78 #define rmb() ((void(*)(void))0xffff0fa0)() 79 #define cpu_relax() asm volatile("":::"memory") 80 #define CPUINFO_PROC "Processor" 81 #endif 82 83 #ifdef __aarch64__ 84 #define rmb() asm volatile("dmb ld" ::: "memory") 85 #define cpu_relax() asm volatile("yield" ::: "memory") 86 #endif 87 88 #ifdef __mips__ 89 #define rmb() asm volatile( \ 90 ".set mips2\n\t" \ 91 "sync\n\t" \ 92 ".set mips0" \ 93 : /* no output */ \ 94 : /* no input */ \ 95 : "memory") 96 #define cpu_relax() asm volatile("" ::: "memory") 97 #define CPUINFO_PROC "cpu model" 98 #endif 99 100 #include <time.h> 101 #include <unistd.h> 102 #include <sys/types.h> 103 #include <sys/syscall.h> 104 105 #include <linux/perf_event.h> 106 #include "util/types.h" 107 #include <stdbool.h> 108 109 struct perf_mmap { 110 void *base; 111 int mask; 112 unsigned int prev; 113 }; 114 115 static inline unsigned int perf_mmap__read_head(struct perf_mmap *mm) 116 { 117 struct perf_event_mmap_page *pc = mm->base; 118 int head = pc->data_head; 119 rmb(); 120 return head; 121 } 122 123 static inline void perf_mmap__write_tail(struct perf_mmap *md, 124 unsigned long tail) 125 { 126 struct perf_event_mmap_page *pc = md->base; 127 128 /* 129 * ensure all reads are done before we write the tail out. 130 */ 131 /* mb(); */ 132 pc->data_tail = tail; 133 } 134 135 /* 136 * prctl(PR_TASK_PERF_EVENTS_DISABLE) will (cheaply) disable all 137 * counters in the current task. 138 */ 139 #define PR_TASK_PERF_EVENTS_DISABLE 31 140 #define PR_TASK_PERF_EVENTS_ENABLE 32 141 142 #ifndef NSEC_PER_SEC 143 # define NSEC_PER_SEC 1000000000ULL 144 #endif 145 146 static inline unsigned long long rdclock(void) 147 { 148 struct timespec ts; 149 150 clock_gettime(CLOCK_MONOTONIC, &ts); 151 return ts.tv_sec * 1000000000ULL + ts.tv_nsec; 152 } 153 154 /* 155 * Pick up some kernel type conventions: 156 */ 157 #define __user 158 #define asmlinkage 159 160 #define unlikely(x) __builtin_expect(!!(x), 0) 161 #define min(x, y) ({ \ 162 typeof(x) _min1 = (x); \ 163 typeof(y) _min2 = (y); \ 164 (void) (&_min1 == &_min2); \ 165 _min1 < _min2 ? _min1 : _min2; }) 166 167 static inline int 168 sys_perf_event_open(struct perf_event_attr *attr, 169 pid_t pid, int cpu, int group_fd, 170 unsigned long flags) 171 { 172 return syscall(__NR_perf_event_open, attr, pid, cpu, 173 group_fd, flags); 174 } 175 176 #define MAX_COUNTERS 256 177 #define MAX_NR_CPUS 256 178 179 struct ip_callchain { 180 u64 nr; 181 u64 ips[0]; 182 }; 183 184 struct branch_flags { 185 u64 mispred:1; 186 u64 predicted:1; 187 u64 reserved:62; 188 }; 189 190 struct branch_entry { 191 u64 from; 192 u64 to; 193 struct branch_flags flags; 194 }; 195 196 struct branch_stack { 197 u64 nr; 198 struct branch_entry entries[0]; 199 }; 200 201 extern bool perf_host, perf_guest; 202 extern const char perf_version_string[]; 203 204 void pthread__unblock_sigwinch(void); 205 206 #include "util/target.h" 207 208 enum perf_call_graph_mode { 209 CALLCHAIN_NONE, 210 CALLCHAIN_FP, 211 CALLCHAIN_DWARF 212 }; 213 214 struct perf_record_opts { 215 struct perf_target target; 216 int call_graph; 217 bool group; 218 bool inherit_stat; 219 bool no_delay; 220 bool no_inherit; 221 bool no_samples; 222 bool pipe_output; 223 bool raw_samples; 224 bool sample_address; 225 bool sample_time; 226 bool sample_id_all_missing; 227 bool exclude_guest_missing; 228 bool period; 229 unsigned int freq; 230 unsigned int mmap_pages; 231 unsigned int user_freq; 232 u64 branch_stack; 233 u64 default_interval; 234 u64 user_interval; 235 u16 stack_dump_size; 236 }; 237 238 #endif 239