2010-08-24 14:18:41 -06:00
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/* Common header for intel-gtt.ko and i915.ko */
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#ifndef _DRM_INTEL_GTT_H
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#define _DRM_INTEL_GTT_H
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2010-11-23 07:24:24 -07:00
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const struct intel_gtt {
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/* Size of memory reserved for graphics by the BIOS */
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unsigned int stolen_size;
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2010-08-24 14:18:41 -06:00
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/* Total number of gtt entries. */
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unsigned int gtt_total_entries;
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/* Part of the gtt that is mappable by the cpu, for those chips where
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* this is not the full gtt. */
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unsigned int gtt_mappable_entries;
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2010-11-06 04:18:58 -06:00
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/* Whether i915 needs to use the dmar apis or not. */
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unsigned int needs_dmar : 1;
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2011-10-17 16:51:55 -06:00
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/* Whether we idle the gpu before mapping/unmapping */
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unsigned int do_idle_maps : 1;
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2012-02-09 09:15:44 -07:00
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/* Share the scratch page dma with ppgtts. */
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dma_addr_t scratch_page_dma;
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2012-02-09 09:15:45 -07:00
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/* for ppgtt PDE access */
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u32 __iomem *gtt;
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2010-11-23 07:24:24 -07:00
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} *intel_gtt_get(void);
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2010-09-06 12:08:44 -06:00
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2010-11-05 11:12:18 -06:00
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void intel_gtt_chipset_flush(void);
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2010-11-06 04:18:58 -06:00
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void intel_gtt_unmap_memory(struct scatterlist *sg_list, int num_sg);
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void intel_gtt_clear_range(unsigned int first_entry, unsigned int num_entries);
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int intel_gtt_map_memory(struct page **pages, unsigned int num_entries,
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struct scatterlist **sg_list, int *num_sg);
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void intel_gtt_insert_sg_entries(struct scatterlist *sg_list,
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unsigned int sg_len,
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unsigned int pg_start,
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unsigned int flags);
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void intel_gtt_insert_pages(unsigned int first_entry, unsigned int num_entries,
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struct page **pages, unsigned int flags);
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2010-11-05 11:04:52 -06:00
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/* Special gtt memory types */
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#define AGP_DCACHE_MEMORY 1
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#define AGP_PHYS_MEMORY 2
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/* New caching attributes for gen6/sandybridge */
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#define AGP_USER_CACHED_MEMORY_LLC_MLC (AGP_USER_TYPES + 2)
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#define AGP_USER_UNCACHED_MEMORY (AGP_USER_TYPES + 4)
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/* flag for GFDT type */
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#define AGP_USER_CACHED_MEMORY_GFDT (1 << 3)
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2012-04-02 02:08:35 -06:00
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#ifdef CONFIG_INTEL_IOMMU
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extern int intel_iommu_gfx_mapped;
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#endif
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2010-08-24 14:18:41 -06:00
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#endif
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