diff options
| author | James Harper <[email protected]> | 2014-06-12 06:53:38 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <[email protected]> | 2014-07-26 11:33:15 -0300 |
| commit | 7b4eeed174b71c325705ff8c53f333bc79d0ee7a (patch) | |
| tree | 3f23ad213911ab98dd30694109c6c0bcfe17afd7 /tools/perf/scripts/python/netdev-times.py | |
| parent | b601fe5688ae285693c64e833003c14acb38378a (diff) | |
[media] vmalloc_sg: make sure all pages in vmalloc area are really DMA-ready
Patch originally written by Konrad. Rebased on current linux media tree.
Under Xen, vmalloc_32() isn't guaranteed to return pages which are really
under 4G in machine physical addresses (only in virtual pseudo-physical
addresses). To work around this, implement a vmalloc variant which
allocates each page with dma_alloc_coherent() to guarantee that each
page is suitable for the device in question.
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
Signed-off-by: James Harper <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/netdev-times.py')
0 files changed, 0 insertions, 0 deletions