diff options
| author |   Ingo Molnar <mingo@elte.hu> | 2008-10-27 10:50:54 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-27 10:50:54 +0100 |
| commit | 4944dd62de21230af039eda7cd218e9a09021d11 (patch) | |
| tree | bac70f7bab8506c7e1b0408bacbdb0b1d77262e9 /arch/x86/include/asm/swiotlb.h | |
| parent | ftrace: warning in kernel/trace/ftrace.c (diff) | |
| parent | Linux 2.6.28-rc2 (diff) | |
| download | linux-dev-4944dd62de21230af039eda7cd218e9a09021d11.tar.xz linux-dev-4944dd62de21230af039eda7cd218e9a09021d11.zip | |
Merge commit 'v2.6.28-rc2' into tracing/urgent
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..51fb2c76ad74 --- /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 */ |