drm_sarea.h

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/* SPDX-License-Identifier: MIT */
/*
 * Copyright 2002 Tungsten Graphics, Inc., Cedar Park, Texas.
 * All Rights Reserved.
 */
 
#ifndef _DRM_SAREA_H_
#define _DRM_SAREA_H_
 
#include "drm.h"
 
#if defined(__cplusplus)
extern "C" {
#endif
 
/* 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
 
#if defined(__cplusplus)
}
#endif
 
#endif              /* _DRM_SAREA_H_ */