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
38struct pci_dev;
39struct agp_bridge_data;
40
41void 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 */);
45int intel_gmch_probe(struct pci_dev *, struct pci_dev *,
46 struct agp_bridge_data *);
47void intel_gmch_remove(void);
48bool intel_enable_gtt(void);
49void intel_gtt_chipset_flush(void);
50void intel_gtt_insert_entries(bus_dmamap_t, unsigned, unsigned);
51void intel_gtt_clear_range(unsigned, unsigned);
52
53#define AGP_USER_MEMORY 1
54#define AGP_USER_CACHED_MEMORY 2
55
56extern int intel_iommu_gfx_mapped;
57
58#endif /* _DRM_INTEL_GTT_H_ */
59