| #ifndef _ASM_X86_IOMMU_H |
| #define _ASM_X86_IOMMU_H |
| |
| extern void pci_iommu_shutdown(void); |
| extern void no_iommu_init(void); |
| extern struct dma_mapping_ops nommu_dma_ops; |
| extern int force_iommu, no_iommu; |
| extern int iommu_detected; |
| |
| extern unsigned long iommu_nr_pages(unsigned long addr, unsigned long len); |
| |
| /* 10 seconds */ |
| #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000) |
| |
| #ifdef CONFIG_GART_IOMMU |
| extern int gart_iommu_aperture; |
| extern int gart_iommu_aperture_allowed; |
| extern int gart_iommu_aperture_disabled; |
| |
| extern void early_gart_iommu_check(void); |
| extern void gart_iommu_init(void); |
| extern void gart_iommu_shutdown(void); |
| extern void __init gart_parse_options(char *); |
| extern void gart_iommu_hole_init(void); |
| |
| #else |
| #define gart_iommu_aperture 0 |
| #define gart_iommu_aperture_allowed 0 |
| #define gart_iommu_aperture_disabled 1 |
| |
| static inline void early_gart_iommu_check(void) |
| { |
| } |
| static inline void gart_iommu_init(void) |
| { |
| } |
| static inline void gart_iommu_shutdown(void) |
| { |
| } |
| static inline void gart_parse_options(char *options) |
| { |
| } |
| static inline void gart_iommu_hole_init(void) |
| { |
| } |
| #endif |
| |
| #endif /* _ASM_X86_IOMMU_H */ |