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| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-08-18 03:05:42 +0200 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2008-10-23 07:55:20 +0200 |
| commit | bb8985586b7a906e116db835c64773b7a7d51663 (patch) | |
| tree | de93ae58e88cc563d95cc124a73f3930594c6100 /arch/x86/include/asm/swiotlb.h | |
| parent | x86, um: initial part of asm-um move (diff) | |
| download | linux-bb8985586b7a906e116db835c64773b7a7d51663.tar.xz linux-bb8985586b7a906e116db835c64773b7a7d51663.zip | |
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/swiotlb.h')
| -rw-r--r-- | arch/x86/include/asm/swiotlb.h | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/x86/include/asm/swiotlb.h b/arch/x86/include/asm/swiotlb.h new file mode 100644 index 000000000000..1e20adbcad4b --- /dev/null +++ b/arch/x86/include/asm/swiotlb.h @@ -0,0 +1,58 @@ +#ifndef ASM_X86__SWIOTLB_H +#define ASM_X86__SWIOTLB_H + +#include <asm/dma-mapping.h> + +/* SWIOTLB interface */ + +extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, + size_t size, int dir); +extern void *swiotlb_alloc_coherent(struct device *hwdev, size_t size, + dma_addr_t *dma_handle, gfp_t flags); +extern void swiotlb_unmap_single(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir); +extern void swiotlb_sync_single_for_cpu(struct device *hwdev, + dma_addr_t dev_addr, + size_t size, int dir); +extern void swiotlb_sync_single_for_device(struct device *hwdev, + dma_addr_t dev_addr, + size_t size, int dir); +extern void swiotlb_sync_single_range_for_cpu(struct device *hwdev, + dma_addr_t dev_addr, + unsigned long offset, + size_t size, int dir); +extern void swiotlb_sync_single_range_for_device(struct device *hwdev, + dma_addr_t dev_addr, + unsigned long offset, + size_t size, int dir); +extern void swiotlb_sync_sg_for_cpu(struct device *hwdev, + struct scatterlist *sg, int nelems, + int dir); +extern void swiotlb_sync_sg_for_device(struct device *hwdev, + struct scatterlist *sg, int nelems, + int dir); +extern int swiotlb_map_sg(struct device *hwdev, struct scatterlist *sg, + int nents, int direction); +extern void swiotlb_unmap_sg(struct device *hwdev, struct scatterlist *sg, + int nents, int direction); +extern int swiotlb_dma_mapping_error(struct device *hwdev, dma_addr_t dma_addr); +extern void swiotlb_free_coherent(struct device *hwdev, size_t size, + void *vaddr, dma_addr_t dma_handle); +extern int swiotlb_dma_supported(struct device *hwdev, u64 mask); +extern void swiotlb_init(void); + +extern int swiotlb_force; + +#ifdef CONFIG_SWIOTLB +extern int swiotlb; +extern void pci_swiotlb_init(void); +#else +#define swiotlb 0 +static inline void pci_swiotlb_init(void) +{ +} +#endif + +static inline void dma_mark_clean(void *addr, size_t size) {} + +#endif /* ASM_X86__SWIOTLB_H */ |