drm_sarea.h

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/*
 * 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/drm.h>

/* SAREA area needs to be at least a page */
#if defined(__alpha__)
#define SAREA_MAX                       0x2000U
#elif defined(__mips__)
#define SAREA_MAX                       0x4000U
#elif defined(__ia64__)
#define SAREA_MAX                       0x10000U    /* 64kB */
#else
/* Intel 830M driver needs at least 8k SAREA */
#define SAREA_MAX                       0x2000U
#endif

#define SAREA_MAX_DRAWABLES     256

#define SAREA_DRAWABLE_CLAIMED_ENTRY    0x80000000

struct drm_sarea_drawable {
    unsigned int stamp;
    unsigned int flags;
};

struct drm_sarea_frame {
    unsigned int x;
    unsigned int y;
    unsigned int width;
    unsigned int height;
    unsigned int fullscreen;
};

struct drm_sarea {
    struct drm_hw_lock lock;
    struct drm_hw_lock drawable_lock;
    struct drm_sarea_drawable drawableTable[SAREA_MAX_DRAWABLES];   
    struct drm_sarea_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_ */