LXR linux/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
   9struct agp_bridge_data;
  10struct pci_dev;
  11struct sg_table;
  12
  13void intel_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_enable_gtt(void);
  22
  23void intel_gtt_chipset_flush(void);
  24void intel_gtt_insert_page(dma_addr_t addr,
  25                           unsigned int pg,
  26                           unsigned int flags);
  27void intel_gtt_insert_sg_entries(struct sg_table *st,
  28                                 unsigned int pg_start,
  29                                 unsigned int flags);
  30void intel_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
  40