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authorChristoph Hellwig <hch@lst.de>2018-01-10 18:21:13 +0300
committerChristoph Hellwig <hch@lst.de>2018-01-10 18:40:54 +0300
commitea8c64ace86647260ec4255f483e5844d62af2df (patch)
tree420f44f5f8c6839d96e814066cc6a8e80957bf01 /arch/x86/pci
parent10dac04c79b181b255a62f60919f29acc56277ac (diff)
downloadlinux-ea8c64ace86647260ec4255f483e5844d62af2df.tar.xz
dma-mapping: move swiotlb arch helpers to a new header
phys_to_dma, dma_to_phys and dma_capable are helpers published by architecture code for use of swiotlb and xen-swiotlb only. Drivers are not supposed to use these directly, but use the DMA API instead. Move these to a new asm/dma-direct.h helper, included by a linux/dma-direct.h wrapper that provides the default linear mapping unless the architecture wants to override it. In the MIPS case the existing dma-coherent.h is reused for now as untangling it will take a bit of work. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Robin Murphy <robin.murphy@arm.com>
Diffstat (limited to 'arch/x86/pci')
-rw-r--r--arch/x86/pci/sta2x11-fixup.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/pci/sta2x11-fixup.c b/arch/x86/pci/sta2x11-fixup.c
index 53d600217973..75577c1490c4 100644
--- a/arch/x86/pci/sta2x11-fixup.c
+++ b/arch/x86/pci/sta2x11-fixup.c
@@ -26,6 +26,7 @@
#include <linux/pci_ids.h>
#include <linux/export.h>
#include <linux/list.h>
+#include <linux/dma-direct.h>
#include <asm/iommu.h>
#define STA2X11_SWIOTLB_SIZE (4*1024*1024)