1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Common header for intel-gtt.ko and i915.ko */
3 
4 #ifndef _DRM_INTEL_GTT_H
5 #define	_DRM_INTEL_GTT_H
6 
7 void intel_gtt_get(u64 *gtt_total,
8 		   phys_addr_t *mappable_base,
9 		   resource_size_t *mappable_end);
10 
11 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
12 		     struct agp_bridge_data *bridge);
13 void intel_gmch_remove(void);
14 
15 bool intel_enable_gtt(void);
16 
17 void intel_gtt_chipset_flush(void);
18 void intel_gtt_insert_page(dma_addr_t addr,
19 			   unsigned int pg,
20 			   unsigned int flags);
21 void intel_gtt_insert_sg_entries(struct sg_table *st,
22 				 unsigned int pg_start,
23 				 unsigned int flags);
24 void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);
25 
26 /* Special gtt memory types */
27 #define AGP_DCACHE_MEMORY	1
28 #define AGP_PHYS_MEMORY		2
29 
30 /* flag for GFDT type */
31 #define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
32 
33 #ifdef CONFIG_INTEL_IOMMU
34 extern int intel_iommu_gfx_mapped;
35 #endif
36 
37 #endif
38