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

 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
 9struct agp_bridge_data;
10struct pci_dev;
11struct sg_table;
12
13void intel_gmch_gtt_get(u64 *gtt_total,
14			phys_addr_t *mappable_base,
15			resource_size_t *mappable_end);
16
17int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
18		     struct agp_bridge_data *bridge);
19void intel_gmch_remove(void);
20
21bool intel_gmch_enable_gtt(void);
22
23void intel_gmch_gtt_flush(void);
24void intel_gmch_gtt_insert_page(dma_addr_t addr,
25				unsigned int pg,
26				unsigned int flags);
27void intel_gmch_gtt_insert_sg_entries(struct sg_table *st,
28				      unsigned int pg_start,
29				      unsigned int flags);
30void 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