diff options
author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/char/drm/drm_sarea.h |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/char/drm/drm_sarea.h')
-rw-r--r-- | drivers/char/drm/drm_sarea.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/drivers/char/drm/drm_sarea.h b/drivers/char/drm/drm_sarea.h new file mode 100644 index 000000000000..de782ed2f03a --- /dev/null +++ b/drivers/char/drm/drm_sarea.h @@ -0,0 +1,78 @@ +/** + * \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 0x2000 +#elif defined(__ia64__) +#define SAREA_MAX 0x10000 /* 64kB */ +#else +/* Intel 830M driver needs at least 8k SAREA */ +#define SAREA_MAX 0x2000 +#endif + +/** Maximum number of drawables in the SAREA */ +#define SAREA_MAX_DRAWABLES 256 + +#define SAREA_DRAWABLE_CLAIMED_ENTRY 0x80000000 + +/** SAREA drawable */ +typedef struct drm_sarea_drawable { + unsigned int stamp; + unsigned int flags; +} drm_sarea_drawable_t; + +/** SAREA frame */ +typedef struct drm_sarea_frame { + unsigned int x; + unsigned int y; + unsigned int width; + unsigned int height; + unsigned int fullscreen; +} drm_sarea_frame_t; + +/** SAREA */ +typedef struct drm_sarea { + /** first thing is always the DRM locking structure */ + drm_hw_lock_t lock; + /** \todo Use readers/writer lock for drm_sarea::drawable_lock */ + drm_hw_lock_t drawable_lock; + drm_sarea_drawable_t drawableTable[SAREA_MAX_DRAWABLES]; /**< drawables */ + drm_sarea_frame_t frame; /**< frame */ + drm_context_t dummy_context; +} drm_sarea_t; + +#endif /* _DRM_SAREA_H_ */ |