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_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_enable_gtt(void); 22 23 void intel_gtt_chipset_flush(void); 24 void intel_gtt_insert_page(dma_addr_t addr, 25 unsigned int pg, 26 unsigned int flags); 27 void intel_gtt_insert_sg_entries(struct sg_table *st, 28 unsigned int pg_start, 29 unsigned int flags); 30 void 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