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| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-08-17 16:44:36 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2017-08-17 16:51:25 -0300 |
| commit | 4717e03cc7e826818c3f9bd60e9c304a3309c3ad (patch) | |
| tree | c38b1cd52ab65bd4631512e2052d17fe12d55c25 /tools/perf/perf-sys.h | |
| parent | 5d9cdc1181c34f959e9fb8e24624223172071871 (diff) | |
| download | linux-4717e03cc7e826818c3f9bd60e9c304a3309c3ad.tar.bz2 | |
perf tools: Remove unused cpu_relax() macros
Since 195564390210 ("perf_counter: kerneltop: simplify data_head read")
we do not use it, and this was way back in 2009, remove it before some
other arch maintainer adds its implementation, like so many did,
needlessly :-)
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-3l2su9c58eaq4twjzrf9uu08@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/perf-sys.h')
| -rw-r--r-- | tools/perf/perf-sys.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h index e4b717e9eb6c..2aaa7366cdc2 100644 --- a/tools/perf/perf-sys.h +++ b/tools/perf/perf-sys.h @@ -10,12 +10,10 @@ #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 @@ -44,7 +42,6 @@ #endif #ifdef __ia64__ -#define cpu_relax() asm volatile ("hint @pause" ::: "memory") #define CPUINFO_PROC {"model name"} #endif @@ -53,7 +50,6 @@ #endif #ifdef __aarch64__ -#define cpu_relax() asm volatile("yield" ::: "memory") #endif #ifdef __mips__ @@ -73,14 +69,9 @@ #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, |