On Thu, Feb 11, 2010 at 10:53:05AM +0000, Catalin Marinas wrote: > Actually after L2 maintenance we don't even need the __dma_barrier(), we > need an outer_cache.sync() function. > > I can do the outer cache optimisations together with a few others for > PL310 (which does not require the cache_wait() call for line > operations). I'm in half a mind to say "stop everything for the DMA API and wait until the next merge window" - what we have at the moment is a big shake up of how the API is implemented, which has had very little attributable testing. Let's get the current code (which missed the last merge window) tested, acked and merged, and only then sort out these kinds of optimizations after that. As it is, these DMA patches have had very little in the way of attributable feedback so far. -- To unsubscribe from this list: send the line "unsubscribe linux-arm-msm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
