[tip:perf/core] perf tools: Introduce cl_offset function

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Commit-ID:  d392711095f12942a61e2963f5ab0076ac651e73
Gitweb:     http://git.kernel.org/tip/d392711095f12942a61e2963f5ab0076ac651e73
Author:     Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Mon, 15 Feb 2016 09:34:33 +0100
Committer:  Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Tue, 23 Feb 2016 12:09:22 -0300

perf tools: Introduce cl_offset function

It'll be used in following patches.

Signed-off-by: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Cc: Stephane Eranian <eranian@xxxxxxxxxx>
Link: http://lkml.kernel.org/r/1455525293-8671-4-git-send-email-jolsa@xxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
 tools/perf/util/sort.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 46f159f..5b9c624 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -168,6 +168,12 @@ static inline u64 cl_address(u64 address)
 	return (address & ~(cacheline_size - 1));
 }
 
+static inline u64 cl_offset(u64 address)
+{
+	/* return the cacheline of the address */
+	return (address & (cacheline_size - 1));
+}
+
 enum sort_mode {
 	SORT_MODE__NORMAL,
 	SORT_MODE__BRANCH,
--
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