1 #ifndef _PERF_SYS_H 2 #define _PERF_SYS_H 3 4 #include <unistd.h> 5 #include <sys/types.h> 6 #include <sys/syscall.h> 7 #include <linux/types.h> 8 #include <linux/perf_event.h> 9 #include <asm/barrier.h> 10 11 #if defined(__i386__) 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 #ifndef __NR_futex 18 # define __NR_futex 240 19 #endif 20 #ifndef __NR_gettid 21 # define __NR_gettid 224 22 #endif 23 #endif 24 25 #if defined(__x86_64__) 26 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 27 #define CPUINFO_PROC {"model name"} 28 #ifndef __NR_perf_event_open 29 # define __NR_perf_event_open 298 30 #endif 31 #ifndef __NR_futex 32 # define __NR_futex 202 33 #endif 34 #ifndef __NR_gettid 35 # define __NR_gettid 186 36 #endif 37 #endif 38 39 #ifdef __powerpc__ 40 #include "../../arch/powerpc/include/uapi/asm/unistd.h" 41 #define CPUINFO_PROC {"cpu"} 42 #endif 43 44 #ifdef __s390__ 45 #define CPUINFO_PROC {"vendor_id"} 46 #endif 47 48 #ifdef __sh__ 49 #define CPUINFO_PROC {"cpu type"} 50 #endif 51 52 #ifdef __hppa__ 53 #define mb() asm volatile("" ::: "memory") 54 #define wmb() asm volatile("" ::: "memory") 55 #define rmb() asm volatile("" ::: "memory") 56 #define CPUINFO_PROC {"cpu"} 57 #endif 58 59 #ifdef __sparc__ 60 #define CPUINFO_PROC {"cpu"} 61 #endif 62 63 #ifdef __alpha__ 64 #define CPUINFO_PROC {"cpu model"} 65 #endif 66 67 #ifdef __ia64__ 68 #define cpu_relax() asm volatile ("hint @pause" ::: "memory") 69 #define CPUINFO_PROC {"model name"} 70 #endif 71 72 #ifdef __arm__ 73 #define CPUINFO_PROC {"model name", "Processor"} 74 #endif 75 76 #ifdef __aarch64__ 77 #define cpu_relax() asm volatile("yield" ::: "memory") 78 #endif 79 80 #ifdef __mips__ 81 #define mb() asm volatile( \ 82 ".set mips2\n\t" \ 83 "sync\n\t" \ 84 ".set mips0" \ 85 : /* no output */ \ 86 : /* no input */ \ 87 : "memory") 88 #define wmb() mb() 89 #define rmb() mb() 90 #define CPUINFO_PROC {"cpu model"} 91 #endif 92 93 #ifdef __arc__ 94 #define mb() asm volatile("" ::: "memory") 95 #define wmb() asm volatile("" ::: "memory") 96 #define rmb() asm volatile("" ::: "memory") 97 #define CPUINFO_PROC {"Processor"} 98 #endif 99 100 #ifdef __metag__ 101 #define mb() asm volatile("" ::: "memory") 102 #define wmb() asm volatile("" ::: "memory") 103 #define rmb() asm volatile("" ::: "memory") 104 #define CPUINFO_PROC {"CPU"} 105 #endif 106 107 #ifdef __xtensa__ 108 #define mb() asm volatile("memw" ::: "memory") 109 #define wmb() asm volatile("memw" ::: "memory") 110 #define rmb() asm volatile("" ::: "memory") 111 #define CPUINFO_PROC {"core ID"} 112 #endif 113 114 #ifdef __tile__ 115 #define mb() asm volatile ("mf" ::: "memory") 116 #define wmb() asm volatile ("mf" ::: "memory") 117 #define rmb() asm volatile ("mf" ::: "memory") 118 #define cpu_relax() asm volatile ("mfspr zero, PASS" ::: "memory") 119 #define CPUINFO_PROC {"model name"} 120 #endif 121 122 #ifndef cpu_relax 123 #define cpu_relax() barrier() 124 #endif 125 126 static inline int 127 sys_perf_event_open(struct perf_event_attr *attr, 128 pid_t pid, int cpu, int group_fd, 129 unsigned long flags) 130 { 131 int fd; 132 133 fd = syscall(__NR_perf_event_open, attr, pid, cpu, 134 group_fd, flags); 135 136 #ifdef HAVE_ATTR_TEST 137 if (unlikely(test_attr__enabled)) 138 test_attr__open(attr, pid, cpu, fd, group_fd, flags); 139 #endif 140 return fd; 141 } 142 143 #endif /* _PERF_SYS_H */ 144