[linux.git] / include / drm / drm_sarea.h

/**
 * \file drm_sarea.h
 * \brief SAREA definitions
 *
 * \author Michel Dänzer <[email protected]>
 */

/*
 * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#ifndef _DRM_SAREA_H_
#define _DRM_SAREA_H_

#include "drm.h"

/* SAREA area needs to be at least a page */
#if defined(__alpha__)
#define SAREA_MAX                       0x2000U
#elif defined(__ia64__)
#define SAREA_MAX                       0x10000U	/* 64kB */
#else
/* Intel 830M driver needs at least 8k SAREA */
#define SAREA_MAX                       0x2000U
#endif

/** Maximum number of drawables in the SAREA */
#define SAREA_MAX_DRAWABLES		256

#define SAREA_DRAWABLE_CLAIMED_ENTRY    0x80000000

/** SAREA drawable */
struct drm_sarea_drawable {
	unsigned int stamp;
	unsigned int flags;
};

/** SAREA frame */
struct drm_sarea_frame {
	unsigned int x;
	unsigned int y;
	unsigned int width;
	unsigned int height;
	unsigned int fullscreen;
};

/** SAREA */
struct drm_sarea {
    /** first thing is always the DRM locking structure */
	struct drm_hw_lock lock;
    /** \todo Use readers/writer lock for drm_sarea::drawable_lock */
	struct drm_hw_lock drawable_lock;
	struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES];	/**< drawables */
	struct drm_sarea_frame frame;	/**< frame */
	drm_context_t dummy_context;
};

#ifndef __KERNEL__
typedef struct drm_sarea_drawable drm_sarea_drawable_t;
typedef struct drm_sarea_frame drm_sarea_frame_t;
typedef struct drm_sarea drm_sarea_t;
#endif

#endif				/* _DRM_SAREA_H_ */
Commit	Line	Data
1da177e4	1	/**
b5e89ed5	2	* \file drm_sarea.h
1da177e4 LT	3	* \brief SAREA definitions
1da177e4 LT	4	*
96de0e25	5	* \author Michel Dänzer <[email protected]>
1da177e4 LT	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	#ifndef _DRM_SAREA_H_
	33	#define _DRM_SAREA_H_
	34
	35	#include "drm.h"
	36
	37	/* SAREA area needs to be at least a page */
	38	#if defined(__alpha__)
7c1c2871	39	#define SAREA_MAX 0x2000U
1da177e4	40	#elif defined(__ia64__)
7c1c2871	41	#define SAREA_MAX 0x10000U /* 64kB */
1da177e4 LT	42	#else
1da177e4 LT	43	/* Intel 830M driver needs at least 8k SAREA */
7c1c2871	44	#define SAREA_MAX 0x2000U
1da177e4 LT	45	#endif
	46
	47	/** Maximum number of drawables in the SAREA */
bc5f4523	48	#define SAREA_MAX_DRAWABLES 256
1da177e4 LT	49
	50	#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000
	51
	52	/** SAREA drawable */
bd63cb52	53	struct drm_sarea_drawable {
b5e89ed5 DA	54	unsigned int stamp;
b5e89ed5 DA	55	unsigned int flags;
bd63cb52	56	};
1da177e4 LT	57
1da177e4 LT	58	/** SAREA frame */
bd63cb52	59	struct drm_sarea_frame {
b5e89ed5 DA	60	unsigned int x;
	61	unsigned int y;
	62	unsigned int width;
	63	unsigned int height;
	64	unsigned int fullscreen;
bd63cb52	65	};
1da177e4 LT	66
1da177e4 LT	67	/** SAREA */
bd63cb52	68	struct drm_sarea {
1da177e4	69	/** first thing is always the DRM locking structure */
c60ce623	70	struct drm_hw_lock lock;
1da177e4	71	/** \todo Use readers/writer lock for drm_sarea::drawable_lock */
c60ce623	72	struct drm_hw_lock drawable_lock;
bd63cb52 DA	73	struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES]; /*< drawables /
bd63cb52 DA	74	struct drm_sarea_frame frame; /*< frame /
b5e89ed5	75	drm_context_t dummy_context;
bd63cb52 DA	76	};
	77
	78	#ifndef __KERNEL__
	79	typedef struct drm_sarea_drawable drm_sarea_drawable_t;
	80	typedef struct drm_sarea_frame drm_sarea_frame_t;
	81	typedef struct drm_sarea drm_sarea_t;
	82	#endif
1da177e4	83
b5e89ed5	84	#endif /* _DRM_SAREA_H_ */