swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
Tip revision: 5a7ad1146caa895ad718a534399e38bd2ba721b7 authored by Linus Torvalds on 23 April 2017, 23:53:00 UTC
Linux 4.11-rc8
Linux 4.11-rc8
Tip revision: 5a7ad11
perf-sys.h
#ifndef _PERF_SYS_H
#define _PERF_SYS_H
#include <unistd.h>
#include <sys/types.h>
#include <sys/syscall.h>
#include <linux/types.h>
#include <linux/compiler.h>
#include <linux/perf_event.h>
#include <asm/barrier.h>
#if defined(__i386__)
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
#define CPUINFO_PROC {"model name"}
#endif
#if defined(__x86_64__)
#define cpu_relax() asm volatile("rep; nop" ::: "memory");
#define CPUINFO_PROC {"model name"}
#endif
#ifdef __powerpc__
#define CPUINFO_PROC {"cpu"}
#endif
#ifdef __s390__
#define CPUINFO_PROC {"vendor_id"}
#endif
#ifdef __sh__
#define CPUINFO_PROC {"cpu type"}
#endif
#ifdef __hppa__
#define CPUINFO_PROC {"cpu"}
#endif
#ifdef __sparc__
#define CPUINFO_PROC {"cpu"}
#endif
#ifdef __alpha__
#define CPUINFO_PROC {"cpu model"}
#endif
#ifdef __ia64__
#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
#define CPUINFO_PROC {"model name"}
#endif
#ifdef __arm__
#define CPUINFO_PROC {"model name", "Processor"}
#endif
#ifdef __aarch64__
#define cpu_relax() asm volatile("yield" ::: "memory")
#endif
#ifdef __mips__
#define CPUINFO_PROC {"cpu model"}
#endif
#ifdef __arc__
#define CPUINFO_PROC {"Processor"}
#endif
#ifdef __metag__
#define CPUINFO_PROC {"CPU"}
#endif
#ifdef __xtensa__
#define CPUINFO_PROC {"core ID"}
#endif
#ifdef __tile__
#define cpu_relax() asm volatile ("mfspr zero, PASS" ::: "memory")
#define CPUINFO_PROC {"model name"}
#endif
#ifndef cpu_relax
#define cpu_relax() barrier()
#endif
static inline int
sys_perf_event_open(struct perf_event_attr *attr,
pid_t pid, int cpu, int group_fd,
unsigned long flags)
{
int fd;
fd = syscall(__NR_perf_event_open, attr, pid, cpu,
group_fd, flags);
#ifdef HAVE_ATTR_TEST
if (unlikely(test_attr__enabled))
test_attr__open(attr, pid, cpu, fd, group_fd, flags);
#endif
return fd;
}
#endif /* _PERF_SYS_H */