tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* Common header for intel-gtt.ko and i915.ko */
2
3#ifndef _DRM_INTEL_GTT_H
4#define _DRM_INTEL_GTT_H
5
6const 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 /* Whether i915 needs to use the dmar apis or not. */
15 unsigned int needs_dmar : 1;
16 /* Whether we idle the gpu before mapping/unmapping */
17 unsigned int do_idle_maps : 1;
18 /* Share the scratch page dma with ppgtts. */
19 dma_addr_t scratch_page_dma;
20 /* for ppgtt PDE access */
21 u32 __iomem *gtt;
22 /* needed for ioremap in drm/i915 */
23 phys_addr_t gma_bus_addr;
24} *intel_gtt_get(void);
25
26int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
27 struct agp_bridge_data *bridge);
28void intel_gmch_remove(void);
29
30bool intel_enable_gtt(void);
31
32void intel_gtt_chipset_flush(void);
33void intel_gtt_insert_sg_entries(struct sg_table *st,
34 unsigned int pg_start,
35 unsigned int flags);
36void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);
37
38/* Special gtt memory types */
39#define AGP_DCACHE_MEMORY 1
40#define AGP_PHYS_MEMORY 2
41
42/* New caching attributes for gen6/sandybridge */
43#define AGP_USER_CACHED_MEMORY_LLC_MLC (AGP_USER_TYPES + 2)
44#define AGP_USER_UNCACHED_MEMORY (AGP_USER_TYPES + 4)
45
46/* flag for GFDT type */
47#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
48
49#ifdef CONFIG_INTEL_IOMMU
50extern int intel_iommu_gfx_mapped;
51#endif
52
53#endif