diff options
| author | Stephen Warren <[email protected]> | 2012-04-04 15:48:28 -0600 |
|---|---|---|
| committer | Mark Brown <[email protected]> | 2012-04-06 10:47:34 +0100 |
| commit | bacdbe077342ecc9e7b3e374cc5a41995116706a (patch) | |
| tree | b5cf9547a0ab4a7fba287a3d654d132869057afa /tools/perf/util/scripting-engines/trace-event-python.c | |
| parent | 0135bbcc7a0cc056f0203ff839466236b8e3dc19 (diff) | |
regmap: introduce fast_io busses, and use a spinlock for them
Some bus types have very fast IO. For these, acquiring a mutex for every
IO operation is a significant overhead. Allow busses to indicate their IO
is fast, and enhance regmap to use a spinlock for those busses.
[Currently limited to native endian registers -- broonie]
Signed-off-by: Stephen Warren <[email protected]>
Signed-off-by: Mark Brown <[email protected]>
Diffstat (limited to 'tools/perf/util/scripting-engines/trace-event-python.c')
0 files changed, 0 insertions, 0 deletions