| commit | 1b6e8cba62d0ea12bc39b0e3f60f66c3892ca1ff | |
| author | Amaury Pouly <amaury.pouly@gmail.com> | |
| Sat, 19 May 2012 23:23:17 +0000 (20 01:23 +0200) | ||
| committer | Amaury Pouly <amaury.pouly@gmail.com> | |
| Sat, 19 May 2012 23:35:25 +0000 (20 01:35 +0200) | ||
| tree | 9d034e05f485b42f837a509ff91844c0f7432be5 | treesnapshot (tar.gz zip) |
| parent | 1adc47477144e701dcb1184f907887eadec05fda | commitdiff |
imx233: make sure dma descriptors are cache friendly
Because DMA descriptors needs to be committed and discarded from
the cache, if they are not cache aligned and/or if their size
is not a multiple of cache ligne, nasty side effects could occur
with adjacents data. The same applies to DMA buffers which are
still potentially broken. Add a macro to ensure that these
constraints will not break by error in the future.
Change-Id: I1dd69a5a9c29796c156d953eaa57c0d281e79846
Because DMA descriptors needs to be committed and discarded from
the cache, if they are not cache aligned and/or if their size
is not a multiple of cache ligne, nasty side effects could occur
with adjacents data. The same applies to DMA buffers which are
still potentially broken. Add a macro to ensure that these
constraints will not break by error in the future.
Change-Id: I1dd69a5a9c29796c156d953eaa57c0d281e79846