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/compiler.h> 9 #include <linux/perf_event.h> 10 #include <asm/barrier.h> 11 12 #if defined(__i386__) 13 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 14 #define CPUINFO_PROC {"model name"} 15 #endif 16 17 #if defined(__x86_64__) 18 #define cpu_relax() asm volatile("rep; nop" ::: "memory"); 19 #define CPUINFO_PROC {"model name"} 20 #endif 21 22 #ifdef __powerpc__ 23 #include "../../arch/powerpc/include/uapi/asm/unistd.h" 24 #define CPUINFO_PROC {"cpu"} 25 #endif 26 27 #ifdef __s390__ 28 #define CPUINFO_PROC {"vendor_id"} 29 #endif 30 31 #ifdef __sh__ 32 #define CPUINFO_PROC {"cpu type"} 33 #endif 34 35 #ifdef __hppa__ 36 #define CPUINFO_PROC {"cpu"} 37 #endif 38 39 #ifdef __sparc__ 40 #define CPUINFO_PROC {"cpu"} 41 #endif 42 43 #ifdef __alpha__ 44 #define CPUINFO_PROC {"cpu model"} 45 #endif 46 47 #ifdef __ia64__ 48 #define cpu_relax() asm volatile ("hint @pause" ::: "memory") 49 #define CPUINFO_PROC {"model name"} 50 #endif 51 52 #ifdef __arm__ 53 #define CPUINFO_PROC {"model name", "Processor"} 54 #endif 55 56 #ifdef __aarch64__ 57 #define cpu_relax() asm volatile("yield" ::: "memory") 58 #endif 59 60 #ifdef __mips__ 61 #define CPUINFO_PROC {"cpu model"} 62 #endif 63 64 #ifdef __arc__ 65 #define CPUINFO_PROC {"Processor"} 66 #endif 67 68 #ifdef __metag__ 69 #define CPUINFO_PROC {"CPU"} 70 #endif 71 72 #ifdef __xtensa__ 73 #define CPUINFO_PROC {"core ID"} 74 #endif 75 76 #ifdef __tile__ 77 #define cpu_relax() asm volatile ("mfspr zero, PASS" ::: "memory") 78 #define CPUINFO_PROC {"model name"} 79 #endif 80 81 #ifndef cpu_relax 82 #define cpu_relax() barrier() 83 #endif 84 85 static inline int 86 sys_perf_event_open(struct perf_event_attr *attr, 87 pid_t pid, int cpu, int group_fd, 88 unsigned long flags) 89 { 90 int fd; 91 92 fd = syscall(__NR_perf_event_open, attr, pid, cpu, 93 group_fd, flags); 94 95 #ifdef HAVE_ATTR_TEST 96 if (unlikely(test_attr__enabled)) 97 test_attr__open(attr, pid, cpu, fd, group_fd, flags); 98 #endif 99 return fd; 100 } 101 102 #endif /* _PERF_SYS_H */ 103