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Linux/include/drm/intel-gtt.h

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

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