/* Common header for intel-gtt.ko and i915.ko */
  
  #ifndef _DRM_INTEL_GTT_H
  #define	_DRM_INTEL_GTT_H

  void intel_gtt_get(size_t *gtt_total, size_t *stolen_size,
  		   phys_addr_t *mappable_base, unsigned long *mappable_end);

  int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
  		     struct agp_bridge_data *bridge);
  void intel_gmch_remove(void);

  bool intel_enable_gtt(void);

  void intel_gtt_chipset_flush(void);

  void intel_gtt_insert_sg_entries(struct sg_table *st,

  				 unsigned int pg_start,
  				 unsigned int flags);

  void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);

  
  /* Special gtt memory types */
  #define AGP_DCACHE_MEMORY	1
  #define AGP_PHYS_MEMORY		2

  /* flag for GFDT type */
  #define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)

  #ifdef CONFIG_INTEL_IOMMU
  extern int intel_iommu_gfx_mapped;
  #endif

  #endif