• Christoph Hellwig's avatar
    dma-mapping: add a new dma_alloc_pages API · efa70f2f
    Christoph Hellwig authored
    This API is the equivalent of alloc_pages, except that the returned memory
    is guaranteed to be DMA addressable by the passed in device.  The
    implementation will also be used to provide a more sensible replacement
    for DMA_ATTR_NON_CONSISTENT flag.
    
    Additionally dma_alloc_noncoherent is switched over to use dma_alloc_pages
    as its backend.
    Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
    Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> (MIPS part)
    efa70f2f
mapping.c 17.5 KB