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/agp_backend.h>
   8#include <linux/kernel.h>
   9
  10void intel_gtt_get(u64 *gtt_total,
  11                   phys_addr_t *mappable_base,
  12                   resource_size_t *mappable_end);
  13
  14int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
  15                     struct agp_bridge_data *bridge);
  16void intel_gmch_remove(void);
  17
  18bool intel_enable_gtt(void);
  19
  20void intel_gtt_chipset_flush(void);
  21void intel_gtt_insert_page(dma_addr_t addr,
  22                           unsigned int pg,
  23                           unsigned int flags);
  24void intel_gtt_insert_sg_entries(struct sg_table *st,
  25                                 unsigned int pg_start,
  26                                 unsigned int flags);
  27void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);
  28
  29/* Special gtt memory types */
  30#define AGP_DCACHE_MEMORY       1
  31#define AGP_PHYS_MEMORY         2
  32
  33/* flag for GFDT type */
  34#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
  35
  36#ifdef CONFIG_INTEL_IOMMU
  37extern int intel_iommu_gfx_mapped;
  38#endif
  39
  40#endif
  41