41 lines
991 B
C
41 lines
991 B
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#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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unsigned long 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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unsigned long attrs);
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#endif /* _ASM_X86_SWIOTLB_H */
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