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 39