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 #include <linux/types.h>
8 
9 struct agp_bridge_data;
10 struct pci_dev;
11 struct sg_table;
12 
13 void intel_gmch_gtt_get(u64 *gtt_total,
14 			phys_addr_t *mappable_base,
15 			resource_size_t *mappable_end);
16 
17 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
18 		     struct agp_bridge_data *bridge);
19 void intel_gmch_remove(void);
20 
21 bool intel_gmch_enable_gtt(void);
22 
23 void intel_gmch_gtt_flush(void);
24 void intel_gmch_gtt_insert_page(dma_addr_t addr,
25 				unsigned int pg,
26 				unsigned int flags);
27 void intel_gmch_gtt_insert_sg_entries(struct sg_table *st,
28 				      unsigned int pg_start,
29 				      unsigned int flags);
30 void intel_gmch_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);
31 
32 /* Special gtt memory types */
33 #define AGP_DCACHE_MEMORY	1
34 #define AGP_PHYS_MEMORY		2
35 
36 /* flag for GFDT type */
37 #define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
38 
39 #endif
40