drm_sarea.h revision 282199 
1/**
2 * \file drm_sarea.h
3 * \brief SAREA definitions
4 *
5 * \author Michel D���zer <michel@daenzer.net>
6 */
7
8/*-
9 * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
10 * All Rights Reserved.
11 *
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
18 *
19 * The above copyright notice and this permission notice (including the next
20 * paragraph) shall be included in all copies or substantial portions of the
21 * Software.
22 *
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
24 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
25 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
26 * TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
27 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
28 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
29 * OTHER DEALINGS IN THE SOFTWARE.
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: stable/10/sys/dev/drm2/drm_sarea.h 282199 2015-04-28 19:35:05Z dumbbell $");
34
35#ifndef _DRM_SAREA_H_
36#define _DRM_SAREA_H_
37
38#include <dev/drm2/drm.h>
39
40/* SAREA area needs to be at least a page */
41#if defined(__alpha__)
42#define SAREA_MAX                       0x2000U
43#elif defined(__mips__)
44#define SAREA_MAX                       0x4000U
45#elif defined(__ia64__)
46#define SAREA_MAX                       0x10000	/* 64kB */
47#else
48/* Intel 830M driver needs at least 8k SAREA */
49#define SAREA_MAX                       0x2000U
50#endif
51
52/** Maximum number of drawables in the SAREA */
53#define SAREA_MAX_DRAWABLES		256
54
55#define SAREA_DRAWABLE_CLAIMED_ENTRY    0x80000000
56
57/** SAREA drawable */
58struct drm_sarea_drawable {
59	unsigned int stamp;
60	unsigned int flags;
61};
62
63/** SAREA frame */
64struct drm_sarea_frame {
65	unsigned int x;
66	unsigned int y;
67	unsigned int width;
68	unsigned int height;
69	unsigned int fullscreen;
70};
71
72/** SAREA */
73struct drm_sarea {
74    /** first thing is always the DRM locking structure */
75	struct drm_hw_lock lock;
76    /** \todo Use readers/writer lock for drm_sarea::drawable_lock */
77	struct drm_hw_lock drawable_lock;
78	struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES];	/**< drawables */
79	struct drm_sarea_frame frame;	/**< frame */
80	drm_context_t dummy_context;
81};
82
83#ifndef __KERNEL__
84typedef struct drm_sarea_drawable drm_sarea_drawable_t;
85typedef struct drm_sarea_frame drm_sarea_frame_t;
86typedef struct drm_sarea drm_sarea_t;
87#endif
88
89#endif				/* _DRM_SAREA_H_ */
90