1 /* $NetBSD: intel-gtt.h,v 1.5 2015/03/06 22:03:06 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/types.h> 36 #include <sys/bus.h> 37 38 struct pci_dev; 39 struct agp_bridge_data; 40 41 void intel_gtt_get(size_t * /* GPU VA size in bytes */, 42 size_t * /* graphics stolen memory in bytes */, 43 bus_addr_t * /* aperture base */, 44 unsigned long * /* aperture size in bytes */); 45 int intel_gmch_probe(struct pci_dev *, struct pci_dev *, 46 struct agp_bridge_data *); 47 void intel_gmch_remove(void); 48 bool intel_enable_gtt(void); 49 void intel_gtt_chipset_flush(void); 50 void intel_gtt_insert_entries(bus_dmamap_t, unsigned, unsigned); 51 void intel_gtt_clear_range(unsigned, unsigned); 52 53 #define AGP_USER_MEMORY 1 54 #define AGP_USER_CACHED_MEMORY 2 55 56 extern int intel_iommu_gfx_mapped; 57 58 #endif /* _DRM_INTEL_GTT_H_ */ 59