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| author |   Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-08-22 16:58:29 -0300 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2019-08-26 11:58:29 -0300 |
| commit | 125009026bfc9ec929975d35344bf69d2c636e95 (patch) | |
| tree | e1af2ccecedf484c3eadbe3ae05ba657bdf231a4 /tools/perf/util/cacheline.h | |
| parent | perf record: Move record_opts and other record decls out of perf.h (diff) | |
| download | linux-dev-125009026bfc9ec929975d35344bf69d2c636e95.tar.xz linux-dev-125009026bfc9ec929975d35344bf69d2c636e95.zip | |
perf cacheline: Move cacheline related routines to separate files
To disentangle util/sort.h a bit more.
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-6kbf2cauas06rbqp15pyter5@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf/util/cacheline.h')
| -rw-r--r-- | tools/perf/util/cacheline.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/tools/perf/util/cacheline.h b/tools/perf/util/cacheline.h new file mode 100644 index 000000000000..dec8c0fb1f4a --- /dev/null +++ b/tools/perf/util/cacheline.h @@ -0,0 +1,21 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef PERF_CACHELINE_H +#define PERF_CACHELINE_H + +#include <linux/compiler.h> + +int __pure cacheline_size(void); + +static inline u64 cl_address(u64 address) +{ + /* return the cacheline of the address */ + return (address & ~(cacheline_size() - 1)); +} + +static inline u64 cl_offset(u64 address) +{ + /* return the cacheline of the address */ + return (address & (cacheline_size() - 1)); +} + +#endif // PERF_CACHELINE_H |