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