On Thu, Feb 16, 2012 at 9:48 AM, Catalin Marinas <catalin.mari...@arm.com> wrote: > The DMA API implementation on ARM takes care of the cache cleaning and > invalidating. >
I believe that this is the reason why we have cache re-invalidation (we invalidated it in dma_map_*() earlier) in dma_unmap_*() calls for ARMv6+ for DMA_FROM_DEVICE. Am i Correct? > BTW, I would say cache evictions rather than speculative writes as the > latter is something else and ARM processors don't do it (only > speculative reads). Oops!! Sorry for the wrong words :( -- viresh _______________________________________________ linaro-dev mailing list linaro-dev@lists.linaro.org http://lists.linaro.org/mailman/listinfo/linaro-dev
