Re: [Linaro-mm-sig] [RFC] ARM DMA mapping TODO, v1

On Thu, Apr 28, 2011 at 04:29:52PM +0200, Arnd Bergmann wrote:

Given that people still want to have an interface that does what I though this one did, I guess we have two options:

• Kill off dma_cache_sync and replace it with calls to dma_sync_* so we can start using dma_alloc_noncoherent on ARM

I don't think this is an option as dma_sync_*() is part of the streaming DMA mapping API (dma_map_*) which participates in the idea of buffer ownership, which the noncoherent API doesn't appear to.