On Tue, Apr 30, 2019 at 06:51:53AM -0400, Christoph Hellwig wrote: > We now have a arch_dma_prep_coherent architecture hook that is used > for the generic DMA remap allocator, and we should use the same > interface for the dma-iommu code. > > Signed-off-by: Christoph Hellwig <h...@lst.de> > Reviewed-by: Robin Murphy <robin.mur...@arm.com> > --- > arch/arm64/mm/dma-mapping.c | 8 +------- > drivers/iommu/dma-iommu.c | 8 +++----- > include/linux/dma-iommu.h | 3 +-- > 3 files changed, 5 insertions(+), 14 deletions(-) > > diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c > index 674860e3e478..10a8852c8b6a 100644 > --- a/arch/arm64/mm/dma-mapping.c > +++ b/arch/arm64/mm/dma-mapping.c > @@ -104,12 +104,6 @@ arch_initcall(arm64_dma_init); > #include <linux/platform_device.h> > #include <linux/amba/bus.h> > > -/* Thankfully, all cache ops are by VA so we can ignore phys here */ > -static void flush_page(struct device *dev, const void *virt, phys_addr_t > phys) > -{ > - __dma_flush_area(virt, PAGE_SIZE); > -}
Rather than removing, should this not become arch_dma_prep_coherent()? With patch 2 selecting the corresponding Kconfig option, I think with this patch you'd get a build error (haven't tried). -- Catalin _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu