1 /* $NetBSD: intel-gtt.h,v 1.2 2014/03/18 18:20:43 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Taylor R. Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 #ifndef _DRM_INTEL_GTT_H_ 33 #define _DRM_INTEL_GTT_H_ 34 35 #include <sys/bus.h> 36 37 #include "drm/bus_dma_hacks.h" 38 39 #include <linux/pci.h> 40 41 #include <drm/drm_agp_netbsd.h> 42 43 struct intel_gtt { 44 paddr_t gma_bus_addr; 45 unsigned int stolen_size; 46 unsigned int gtt_total_entries; 47 unsigned int gtt_mappable_entries; 48 bus_dma_segment_t gtt_scratch_seg; 49 bus_dmamap_t gtt_scratch_map; 50 bus_space_handle_t gtt_bsh; 51 bool do_idle_maps; 52 }; 53 54 struct intel_gtt * 55 intel_gtt_get(void); 56 int intel_gmch_probe(struct pci_dev *, struct pci_dev *, 57 struct agp_bridge_data *); 58 void intel_gmch_remove(void); 59 bool intel_enable_gtt(void); 60 void intel_gtt_chipset_flush(void); 61 #ifndef __NetBSD__ 62 void intel_gtt_insert_sg_entries(struct sg_table *, unsigned int, 63 unsigned int); 64 #endif 65 void intel_gtt_clear_range(unsigned int, unsigned int); 66 67 #define AGP_DCACHE_MEMORY 1 68 #define AGP_PHYS_MEMORY 2 69 70 #define AGP_USER_CACHED_MEMORY_GFDT __BIT(3) 71 72 extern int intel_iommu_gfx_mapped; 73 74 #endif /* _DRM_INTEL_GTT_H_ */ 75