mirror of https://gitee.com/openkylin/linux.git
40 lines
960 B
C
40 lines
960 B
C
#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,
|
|
struct dma_attrs *attrs);
|
|
extern void x86_swiotlb_free_coherent(struct device *dev, size_t size,
|
|
void *vaddr, dma_addr_t dma_addr,
|
|
struct dma_attrs *attrs);
|
|
|
|
#endif /* _ASM_X86_SWIOTLB_H */
|