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