1 #ifndef _ASM_X86_IOMMU_H
2 #define _ASM_X86_IOMMU_H
4 extern void pci_iommu_shutdown(void);
5 extern void no_iommu_init(void);
6 extern struct dma_mapping_ops nommu_dma_ops;
7 extern int force_iommu, no_iommu;
8 extern int iommu_detected;
9 extern int dmar_disabled;
10 extern int forbid_dac;
12 extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len);
15 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
17 #ifdef CONFIG_GART_IOMMU
18 extern int gart_iommu_aperture;
19 extern int gart_iommu_aperture_allowed;
20 extern int gart_iommu_aperture_disabled;
22 extern void early_gart_iommu_check(void);
23 extern void gart_iommu_init(void);
24 extern void gart_iommu_shutdown(void);
25 extern void __init gart_parse_options(char *);
26 extern void gart_iommu_hole_init(void);
29 #define gart_iommu_aperture 0
30 #define gart_iommu_aperture_allowed 0
31 #define gart_iommu_aperture_disabled 1
33 static inline void early_gart_iommu_check(void)
36 static inline void gart_iommu_init(void)
39 static inline void gart_iommu_shutdown(void)
42 static inline void gart_parse_options(char *options)
45 static inline void gart_iommu_hole_init(void)
50 #endif /* _ASM_X86_IOMMU_H */