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 #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