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/* Common header for intel-gtt.ko and i915.ko */

#ifndef _DRM_INTEL_GTT_H

#define	_DRM_INTEL_GTT_H

struct agp_bridge_data;

struct intel_gtt {

	/* Size of memory reserved for graphics by the BIOS */

	unsigned int stolen_size;

	/* Total number of gtt entries. */

	unsigned int gtt_total_entries;

	/* Part of the gtt that is mappable by the cpu, for those chips where

	 * this is not the full gtt. */

	unsigned int gtt_mappable_entries;

	/* Whether i915 needs to use the dmar apis or not. */

	unsigned int needs_dmar : 1;

	/* Whether we idle the gpu before mapping/unmapping */

	unsigned int do_idle_maps : 1;

	/* Share the scratch page dma with ppgtts. */

	dma_addr_t scratch_page_dma;

	struct page *scratch_page;

	/* for ppgtt PDE access */

	u32 __iomem *gtt;

	/* needed for ioremap in drm/i915 */

	phys_addr_t gma_bus_addr;

} *intel_gtt_get(void);

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_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

/* New caching attributes for gen6/sandybridge */

#define AGP_USER_CACHED_MEMORY_LLC_MLC (AGP_USER_TYPES + 2)

#define AGP_USER_UNCACHED_MEMORY (AGP_USER_TYPES + 4)

/* flag for GFDT type */

#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)

#ifdef CONFIG_INTEL_IOMMU

extern int intel_iommu_gfx_mapped;

#endif

#endif