1 /* Common header for intel-gtt.ko and i915.ko */ 2 3 #ifndef _DRM_INTEL_GTT_H 4 #define _DRM_INTEL_GTT_H 5 6 struct intel_gtt { 7 /* Size of memory reserved for graphics by the BIOS */ 8 unsigned int stolen_size; 9 /* Total number of gtt entries. */ 10 unsigned int gtt_total_entries; 11 /* Part of the gtt that is mappable by the cpu, for those chips where 12 * this is not the full gtt. */ 13 unsigned int gtt_mappable_entries; 14 /* needed for ioremap in drm/i915 */ 15 phys_addr_t gma_bus_addr; 16 } *intel_gtt_get(void); 17 18 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev, 19 struct agp_bridge_data *bridge); 20 void intel_gmch_remove(void); 21 22 bool intel_enable_gtt(void); 23 24 void intel_gtt_chipset_flush(void); 25 void intel_gtt_insert_sg_entries(struct sg_table *st, 26 unsigned int pg_start, 27 unsigned int flags); 28 void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries); 29 30 /* Special gtt memory types */ 31 #define AGP_DCACHE_MEMORY 1 32 #define AGP_PHYS_MEMORY 2 33 34 /* flag for GFDT type */ 35 #define AGP_USER_CACHED_MEMORY_GFDT (1 << 3) 36 37 #ifdef CONFIG_INTEL_IOMMU 38 extern int intel_iommu_gfx_mapped; 39 #endif 40 41 #endif 42