https://github.com/torvalds/linux
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Tip revision: 569dbb88e80deb68974ef6fdd6a13edb9d686261 authored by Linus Torvalds on 03 September 2017, 20:56:17 UTC
Linux 4.13
Tip revision: 569dbb8
intel-gtt.h
/* Common header for intel-gtt.ko and i915.ko */

#ifndef _DRM_INTEL_GTT_H
#define	_DRM_INTEL_GTT_H

void intel_gtt_get(u64 *gtt_total,
		   u32 *stolen_size,
		   phys_addr_t *mappable_base,
		   u64 *mappable_end);

int intel_gmch_probe(struct pci_dev *bridge_pdev, struct pci_dev *gpu_pdev,
		     struct agp_bridge_data *bridge);
void intel_gmch_remove(void);

bool intel_enable_gtt(void);

void intel_gtt_chipset_flush(void);
void intel_gtt_insert_page(dma_addr_t addr,
			   unsigned int pg,
			   unsigned int flags);
void intel_gtt_insert_sg_entries(struct sg_table *st,
				 unsigned int pg_start,
				 unsigned int flags);
void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);

/* Special gtt memory types */
#define AGP_DCACHE_MEMORY	1
#define AGP_PHYS_MEMORY		2

/* flag for GFDT type */
#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)

#ifdef CONFIG_INTEL_IOMMU
extern int intel_iommu_gfx_mapped;
#endif

#endif
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