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Diffstat (limited to 'linux/drm_agp.h')
| -rw-r--r-- | linux/drm_agp.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/linux/drm_agp.h b/linux/drm_agp.h new file mode 100644 index 00000000..27c2b29f --- /dev/null +++ b/linux/drm_agp.h @@ -0,0 +1,95 @@ +/** + * \file drm_agp.h + * DRM support for AGP/GART backend + * + * \author Rickard E. (Rik) Faith <faith@valinux.com> + * \author Gareth Hughes <gareth@valinux.com> + */ + +/* + * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. + * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California. + * 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 + * VA LINUX SYSTEMS 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_AGP_H_ +#define _DRM_AGP_H_ + + +/** + * AGP memory entry. Stored as a doubly linked list. + */ +typedef struct drm_agp_mem { + unsigned long handle; /**< handle */ + agp_memory *memory; + unsigned long bound; /**< address */ + int pages; + struct drm_agp_mem *prev; /**< previous entry */ + struct drm_agp_mem *next; /**< next entry */ +} drm_agp_mem_t; + +/** + * AGP data. + * + * \sa DRM(agp_init)() and drm_device::agp. + */ +typedef struct drm_agp_head { + agp_kern_info agp_info; /**< AGP device information */ + drm_agp_mem_t *memory; /**< memory entries */ + unsigned long mode; /**< AGP mode */ + int enabled; /**< whether the AGP bus as been enabled */ + int acquired; /**< whether the AGP device has been acquired */ + unsigned long base; + int agp_mtrr; + int cant_use_aperture; + unsigned long page_mask; +} drm_agp_head_t; + + +/** \name Prototypes */ +/*@{*/ + +extern int DRM(agp_acquire)(void); +extern void DRM(agp_release)(void); +extern void DRM(agp_enable)(unsigned mode); +extern agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type); +extern int DRM(agp_free_memory)(agp_memory *handle); +extern int DRM(agp_bind_memory)(agp_memory *handle, off_t start); +extern int DRM(agp_unbind_memory)(agp_memory *handle); + +extern int DRM(agp_acquire_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int DRM(agp_release_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int DRM(agp_enable_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int DRM(agp_info_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int DRM(agp_alloc_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int DRM(agp_free_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int DRM(agp_bind_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); +extern int DRM(agp_unbind_ioctl)(struct inode *inode, struct file *filp, unsigned int cmd, unsigned long arg); + +extern void DRM(agp_init)(void); +extern void DRM(agp_cleanup)(void); +extern void DRM(agp_init_dev)(drm_device_t *dev); +extern void DRM(agp_cleanup_dev)(drm_device_t *dev); + +/*@}*/ + +#endif |