diff options
| author | Alexander Duyck <[email protected]> | 2016-12-14 15:05:23 -0800 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2016-12-14 16:04:08 -0800 |
| commit | 0495c3d367944e4af053983ff3cdf256b567b053 (patch) | |
| tree | 7d7418b6377cc4a8d6db54bcd9da8d40e998bf45 /tools/perf/scripts/python/net_dropmonitor.py | |
| parent | 4bfa135abec99f4b35b5636f56a6db75ce3c64d7 (diff) | |
dma: add calls for dma_map_page_attrs and dma_unmap_page_attrs
Add support for mapping and unmapping a page with attributes.
The primary use for this is currently to allow for us to pass the
DMA_ATTR_SKIP_CPU_SYNC attribute when mapping and unmapping a page. On
some architectures such as ARM the synchronization has significant
overhead and if we are already taking care of the sync_for_cpu and
sync_for_device from the driver there isn't much need to handle this in
the map/unmap calls as well.
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Alexander Duyck <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/net_dropmonitor.py')
0 files changed, 0 insertions, 0 deletions