| #ifndef _ASM_X86_SWIOTLB_H |
| #define _ASM_X86_SWIOTLB_H |
| |
| #include <linux/swiotlb.h> |
| |
| #ifdef CONFIG_SWIOTLB |
| extern int swiotlb; |
| extern int __init pci_swiotlb_detect_override(void); |
| extern int __init pci_swiotlb_detect_4gb(void); |
| extern void __init pci_swiotlb_init(void); |
| extern void __init pci_swiotlb_late_init(void); |
| #else |
| #define swiotlb 0 |
| static inline int pci_swiotlb_detect_override(void) |
| { |
| return 0; |
| } |
| static inline int pci_swiotlb_detect_4gb(void) |
| { |
| return 0; |
| } |
| static inline void pci_swiotlb_init(void) |
| { |
| } |
| static inline void pci_swiotlb_late_init(void) |
| { |
| } |
| #endif |
| |
| static inline void dma_mark_clean(void *addr, size_t size) {} |
| |
| extern void *x86_swiotlb_alloc_coherent(struct device *hwdev, size_t size, |
| dma_addr_t *dma_handle, gfp_t flags, |
| unsigned long attrs); |
| extern void x86_swiotlb_free_coherent(struct device *dev, size_t size, |
| void *vaddr, dma_addr_t dma_addr, |
| unsigned long attrs); |
| |
| #endif /* _ASM_X86_SWIOTLB_H */ |
