include/asm-x86/iommu.h

   1 #ifndef ASM_X86__IOMMU_H
   2 #define ASM_X86__IOMMU_H
   3
   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
  11 extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len);
  12
  13 #ifdef CONFIG_GART_IOMMU
  14 extern int gart_iommu_aperture;
  15 extern int gart_iommu_aperture_allowed;
  16 extern int gart_iommu_aperture_disabled;
  17
  18 extern void early_gart_iommu_check(void);
  19 extern void gart_iommu_init(void);
  20 extern void gart_iommu_shutdown(void);
  21 extern void __init gart_parse_options(char *);
  22 extern void gart_iommu_hole_init(void);
  23
  24 #else
  25 #define gart_iommu_aperture            0
  26 #define gart_iommu_aperture_allowed    0
  27 #define gart_iommu_aperture_disabled   1
  28
  29 static inline void early_gart_iommu_check(void)
  30 {
  31 }
  32 static inline void gart_iommu_init(void)
  33 {
  34 }
  35 static inline void gart_iommu_shutdown(void)
  36 {
  37 }
  38 static inline void gart_parse_options(char *options)
  39 {
  40 }
  41 static inline void gart_iommu_hole_init(void)
  42 {
  43 }
  44 #endif
  45
  46 #endif /* ASM_X86__IOMMU_H */