Christoph Hellwig 419e2f1838 dma-mapping: remove arch_dma_mmap_pgprot ... arch_dma_mmap_pgprot is used for two things: 1) to override the "normal" uncached page attributes for mapping memory coherent to devices that can't snoop the CPU caches 2) to provide the special DMA_ATTR_WRITE_COMBINE semantics on older arm systems and some mips platforms Replace one with the pgprot_dmacoherent macro that is already provided by arm and much simpler to use, and lift the DMA_ATTR_WRITE_COMBINE handling to common code with an explicit arch opt-in. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k Acked-by: Paul Burton <paul.burton@mips.com> # mips		2019-08-29 16:43:22 +02:00
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asm	dma-mapping: remove arch_dma_mmap_pgprot	2019-08-29 16:43:22 +02:00
uapi/asm	treewide: Add SPDX license identifier - Kbuild	2019-05-30 11:32:33 -07:00