initial_commit

1 files changed, 84 insertions, 0 deletions

diff --git a/include/drm/drm_sarea.h b/include/drm/drm_sarea.h
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+++ b/include/drm/drm_sarea.h
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+/**
+ * \file drm_sarea.h
+ * \brief SAREA definitions
+ *
+ * \author Michel Dänzer <michel@daenzer.net>
+ */
+
+/*
+ * 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_ */