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| author | Laura Abbott <lauraa@codeaurora.org> | 2014-05-22 14:38:48 -0700 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:14:08 -0700 |
| commit | 0bf6f5ab1502115fcc3353ad1892c1c0cf148dd9 (patch) | |
| tree | 06157e4123104fa15c78b94fd7dd8fec4587828c /include/linux/bitmap.h | |
| parent | f01c05b16928c265d03173db6c2ce6b5349d335a (diff) | |
arm: Add option to skip buffer zeroing
The DMA framework currently zeros all buffers because it (righfully so)
assumes that drivers will soon need to pass the memory to a device.
Some devices/use case may not require zeroed memory and there can
be an increase in performance if we skip the zeroing. Add a DMA_ATTR
to allow skipping of DMA zeroing.
Change-Id: Ib78a19cb341c3c441f91d5b004c6375c80c10413
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
[pdaly@codeaurora.org Resolve minor conflicts]
Signed-off-by: Patrick Daly <pdaly@codeaurora.org>
Diffstat (limited to 'include/linux/bitmap.h')
0 files changed, 0 insertions, 0 deletions