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163e589d05
We will need it for atomic.h, so move it from the ad-hoc tools/perf/ place to a tools/ subset of the kernel arch/ hierarchy. Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Borislav Petkov <bp@suse.de> Cc: David Ahern <dsahern@gmail.com> Cc: Don Zickus <dzickus@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-4op0qdukegrdumyefz4icxk0@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
154 lines
3.5 KiB
C
154 lines
3.5 KiB
C
#ifndef _PERF_SYS_H
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#define _PERF_SYS_H
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/syscall.h>
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#include <linux/types.h>
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#include <linux/perf_event.h>
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#include <asm/barrier.h>
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#if defined(__i386__)
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#define cpu_relax() asm volatile("rep; nop" ::: "memory");
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#define CPUINFO_PROC {"model name"}
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#ifndef __NR_perf_event_open
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# define __NR_perf_event_open 336
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#endif
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#ifndef __NR_futex
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# define __NR_futex 240
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#endif
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#ifndef __NR_gettid
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# define __NR_gettid 224
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#endif
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#endif
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#if defined(__x86_64__)
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#define cpu_relax() asm volatile("rep; nop" ::: "memory");
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#define CPUINFO_PROC {"model name"}
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#ifndef __NR_perf_event_open
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# define __NR_perf_event_open 298
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#endif
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#ifndef __NR_futex
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# define __NR_futex 202
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#endif
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#ifndef __NR_gettid
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# define __NR_gettid 186
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#endif
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#endif
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#ifdef __powerpc__
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#include "../../arch/powerpc/include/uapi/asm/unistd.h"
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __s390__
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#define CPUINFO_PROC {"vendor_id"}
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#endif
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#ifdef __sh__
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#define CPUINFO_PROC {"cpu type"}
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#endif
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#ifdef __hppa__
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#define mb() asm volatile("" ::: "memory")
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#define wmb() asm volatile("" ::: "memory")
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#define rmb() asm volatile("" ::: "memory")
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __sparc__
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#define CPUINFO_PROC {"cpu"}
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#endif
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#ifdef __alpha__
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#define CPUINFO_PROC {"cpu model"}
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#endif
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#ifdef __ia64__
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#define cpu_relax() asm volatile ("hint @pause" ::: "memory")
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#define CPUINFO_PROC {"model name"}
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#endif
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#ifdef __arm__
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/*
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* Use the __kuser_memory_barrier helper in the CPU helper page. See
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* arch/arm/kernel/entry-armv.S in the kernel source for details.
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*/
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#define mb() ((void(*)(void))0xffff0fa0)()
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#define wmb() ((void(*)(void))0xffff0fa0)()
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#define rmb() ((void(*)(void))0xffff0fa0)()
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#define CPUINFO_PROC {"model name", "Processor"}
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#endif
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#ifdef __aarch64__
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#define mb() asm volatile("dmb ish" ::: "memory")
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#define wmb() asm volatile("dmb ishst" ::: "memory")
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#define rmb() asm volatile("dmb ishld" ::: "memory")
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#define cpu_relax() asm volatile("yield" ::: "memory")
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#endif
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#ifdef __mips__
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#define mb() asm volatile( \
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".set mips2\n\t" \
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"sync\n\t" \
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".set mips0" \
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: /* no output */ \
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: /* no input */ \
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: "memory")
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#define wmb() mb()
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#define rmb() mb()
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#define CPUINFO_PROC {"cpu model"}
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#endif
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#ifdef __arc__
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#define mb() asm volatile("" ::: "memory")
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#define wmb() asm volatile("" ::: "memory")
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#define rmb() asm volatile("" ::: "memory")
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#define CPUINFO_PROC {"Processor"}
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#endif
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#ifdef __metag__
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#define mb() asm volatile("" ::: "memory")
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#define wmb() asm volatile("" ::: "memory")
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#define rmb() asm volatile("" ::: "memory")
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#define CPUINFO_PROC {"CPU"}
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#endif
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#ifdef __xtensa__
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#define mb() asm volatile("memw" ::: "memory")
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#define wmb() asm volatile("memw" ::: "memory")
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#define rmb() asm volatile("" ::: "memory")
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#define CPUINFO_PROC {"core ID"}
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#endif
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#ifdef __tile__
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#define mb() asm volatile ("mf" ::: "memory")
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#define wmb() asm volatile ("mf" ::: "memory")
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#define rmb() asm volatile ("mf" ::: "memory")
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#define cpu_relax() asm volatile ("mfspr zero, PASS" ::: "memory")
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#define CPUINFO_PROC {"model name"}
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#endif
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#ifndef cpu_relax
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#define cpu_relax() barrier()
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#endif
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static inline int
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sys_perf_event_open(struct perf_event_attr *attr,
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pid_t pid, int cpu, int group_fd,
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unsigned long flags)
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{
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int fd;
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fd = syscall(__NR_perf_event_open, attr, pid, cpu,
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group_fd, flags);
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#ifdef HAVE_ATTR_TEST
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if (unlikely(test_attr__enabled))
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test_attr__open(attr, pid, cpu, fd, group_fd, flags);
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#endif
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return fd;
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}
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#endif /* _PERF_SYS_H */
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