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);
31dma_addr_t intel_gmch_gtt_read_entry(unsigned int pg,
32 bool *is_present, bool *is_local);
33
34/* Special gtt memory types */
35#define AGP_DCACHE_MEMORY 1
36#define AGP_PHYS_MEMORY 2
37
38/* flag for GFDT type */
39#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
40
41#endif
42