tools/perf/perf-sys.h

   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 */