include/drm/intel-gtt.h

   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                    u32 *stolen_size,
   9                    phys_addr_t *mappable_base,
  10                    u64 *mappable_end);
  11
  12 int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
  13                      struct agp_bridge_data *bridge);
  14 void intel_gmch_remove(void);
  15
  16 bool intel_enable_gtt(void);
  17
  18 void intel_gtt_chipset_flush(void);
  19 void intel_gtt_insert_page(dma_addr_t addr,
  20                            unsigned int pg,
  21                            unsigned int flags);
  22 void intel_gtt_insert_sg_entries(struct sg_table *st,
  23                                  unsigned int pg_start,
  24                                  unsigned int flags);
  25 void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);
  26
  27 /* Special gtt memory types */
  28 #define AGP_DCACHE_MEMORY       1
  29 #define AGP_PHYS_MEMORY         2
  30
  31 /* flag for GFDT type */
  32 #define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
  33
  34 #ifdef CONFIG_INTEL_IOMMU
  35 extern int intel_iommu_gfx_mapped;
  36 #endif
  37
  38 #endif