diff options
| author | Will Deacon <[email protected]> | 2013-12-12 17:40:22 +0000 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2013-12-12 10:39:01 -0800 |
| commit | 11ec50caedb56e3a87715edeff6a1852e6ae5416 (patch) | |
| tree | a94b6a3d2456800197d67effa2677d426d00d31d /tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py | |
| parent | a5c21dcefa1c3d759457a604b3cfc4af29c8713f (diff) | |
word-at-a-time: provide generic big-endian zero_bytemask implementation
Whilst architectures may be able to do better than this (which they can,
by simply defining their own macro), this is a generic stab at a
zero_bytemask implementation for the asm-generic, big-endian
word-at-a-time implementation.
On arm64, a clz instruction is used to implement the fls efficiently.
Signed-off-by: Will Deacon <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/Perf-Trace-Util/lib/Perf/Trace/Util.py')
0 files changed, 0 insertions, 0 deletions