| #ifndef _ASM_SWIOTLB_H |
| #define _ASM_SWTIOLB_H 1 |
| |
| #include <linux/config.h> |
| |
| /* SWIOTLB interface */ |
| |
| extern dma_addr_t swiotlb_map_single(struct device *hwdev, void *ptr, size_t size, |
| int dir); |
| 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_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(dma_addr_t dma_addr); |
| extern void *swiotlb_alloc_coherent (struct device *hwdev, size_t size, |
| dma_addr_t *dma_handle, int flags); |
| extern void swiotlb_free_coherent (struct device *hwdev, size_t size, |
| void *vaddr, dma_addr_t dma_handle); |
| |
| #ifdef CONFIG_SWIOTLB |
| extern int swiotlb; |
| #else |
| #define swiotlb 0 |
| #endif |
| |
| #endif |
