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| author |   Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-09-29 19:50:59 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2008-09-30 11:01:36 +0100 |
| commit | 309dbbabee7b19e003e1ba4b98f43d28f390a84e (patch) | |
| tree | ba748b84c0573f5eb151a581e333b95010576521 /include/linux | |
| parent | [ARM] dma: add validation of DMA params (diff) | |
| download | wireguard-linux-309dbbabee7b19e003e1ba4b98f43d28f390a84e.tar.xz wireguard-linux-309dbbabee7b19e003e1ba4b98f43d28f390a84e.zip | |
[ARM] dma: don't touch cache on dma_*_for_cpu()
As per the dma_unmap_* calls, we don't touch the cache when a DMA
buffer transitions from device to CPU ownership. Presently, no
problems have been identified with speculative cache prefetching
which in itself is a new feature in later architectures. We may
have to revisit the DMA API later for these architectures anyway.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions