102 lines
3.6 KiB
C
102 lines
3.6 KiB
C
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/*-
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* Copyright (c) 2011 The FreeBSD Foundation
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* All rights reserved.
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*
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* This software was developed by Konstantin Belousov under sponsorship from
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* the FreeBSD Foundation.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef AGP_AGP_I810_H
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#define AGP_AGP_I810_H
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#include <sys/param.h>
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#include <sys/sglist.h>
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#include <vm/vm.h>
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#include <vm/vm_page.h>
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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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struct intel_gtt {
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/* Size of memory reserved for graphics by the BIOS */
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u_int stolen_size;
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/* Total number of gtt entries. */
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u_int gtt_total_entries;
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/*
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* Part of the gtt that is mappable by the cpu, for those
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* chips where this is not the full gtt.
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*/
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u_int gtt_mappable_entries;
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/*
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* Always false.
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*/
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u_int do_idle_maps;
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/*
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* Share the scratch page dma with ppgtts.
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*/
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vm_paddr_t scratch_page_dma;
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};
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struct intel_gtt agp_intel_gtt_get(device_t dev);
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int agp_intel_gtt_chipset_flush(device_t dev);
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void agp_intel_gtt_unmap_memory(device_t dev, struct sglist *sg_list);
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void agp_intel_gtt_clear_range(device_t dev, u_int first_entry,
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u_int num_entries);
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int agp_intel_gtt_map_memory(device_t dev, vm_page_t *pages, u_int num_entries,
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struct sglist **sg_list);
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void agp_intel_gtt_insert_sg_entries(device_t dev, struct sglist *sg_list,
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u_int pg_start, u_int flags);
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void agp_intel_gtt_insert_pages(device_t dev, u_int first_entry,
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u_int num_entries, vm_page_t *pages, u_int flags);
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struct intel_gtt intel_gtt_get(void);
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int intel_gtt_chipset_flush(void);
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void intel_gtt_unmap_memory(struct sglist *sg_list);
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void intel_gtt_clear_range(u_int first_entry, u_int num_entries);
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int intel_gtt_map_memory(vm_page_t *pages, u_int num_entries,
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struct sglist **sg_list);
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void intel_gtt_insert_sg_entries(struct sglist *sg_list, u_int pg_start,
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u_int flags);
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void intel_gtt_insert_pages(u_int first_entry, u_int num_entries,
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vm_page_t *pages, u_int flags);
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vm_paddr_t intel_gtt_read_pte_paddr(u_int entry);
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u_int32_t intel_gtt_read_pte(u_int entry);
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device_t intel_gtt_get_bridge_device(void);
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void intel_gtt_write(u_int entry, uint32_t val);
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#endif
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