On 2024-10-27 08:21, Leon Romanovsky wrote: > From: Christoph Hellwig <hch@xxxxxx> > > The current scheme with a single helper to determine the P2P status > and map a scatterlist segment force users to always use the map_sg > helper to DMA map, which we're trying to get away from because they > are very cache inefficient. > > Refactor the code so that there is a single helper that checks the P2P > state for a page, including the result that it is not a P2P page to > simplify the callers, and a second one to perform the address translation > for a bus mapped P2P transfer that does not depend on the scatterlist > structure. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx> Looks good to me. Thanks! Reviewed-by: Logan Gunthorpe <logang@xxxxxxxxxxxx>
