mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
109 lines
3.5 KiB
109 lines
3.5 KiB
/* |
|
* AGPGART backend specific includes. Not for userspace consumption. |
|
* |
|
* Copyright (C) 2004 Silicon Graphics, Inc. |
|
* Copyright (C) 2002-2003 Dave Jones |
|
* Copyright (C) 1999 Jeff Hartmann |
|
* Copyright (C) 1999 Precision Insight, Inc. |
|
* Copyright (C) 1999 Xi Graphics, Inc. |
|
* |
|
* 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 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 |
|
* JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS 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 _AGP_BACKEND_H |
|
#define _AGP_BACKEND_H 1 |
|
|
|
#include <linux/list.h> |
|
|
|
enum chipset_type { |
|
NOT_SUPPORTED, |
|
SUPPORTED, |
|
}; |
|
|
|
struct agp_version { |
|
u16 major; |
|
u16 minor; |
|
}; |
|
|
|
struct agp_kern_info { |
|
struct agp_version version; |
|
struct pci_dev *device; |
|
enum chipset_type chipset; |
|
unsigned long mode; |
|
unsigned long aper_base; |
|
size_t aper_size; |
|
int max_memory; /* In pages */ |
|
int current_memory; |
|
bool cant_use_aperture; |
|
unsigned long page_mask; |
|
const struct vm_operations_struct *vm_ops; |
|
}; |
|
|
|
/* |
|
* The agp_memory structure has information about the block of agp memory |
|
* allocated. A caller may manipulate the next and prev pointers to link |
|
* each allocated item into a list. These pointers are ignored by the backend. |
|
* Everything else should never be written to, but the caller may read any of |
|
* the items to determine the status of this block of agp memory. |
|
*/ |
|
|
|
struct agp_bridge_data; |
|
|
|
struct agp_memory { |
|
struct agp_memory *next; |
|
struct agp_memory *prev; |
|
struct agp_bridge_data *bridge; |
|
struct page **pages; |
|
size_t page_count; |
|
int key; |
|
int num_scratch_pages; |
|
off_t pg_start; |
|
u32 type; |
|
u32 physical; |
|
bool is_bound; |
|
bool is_flushed; |
|
/* list of agp_memory mapped to the aperture */ |
|
struct list_head mapped_list; |
|
/* DMA-mapped addresses */ |
|
struct scatterlist *sg_list; |
|
int num_sg; |
|
}; |
|
|
|
#define AGP_NORMAL_MEMORY 0 |
|
|
|
#define AGP_USER_TYPES (1 << 16) |
|
#define AGP_USER_MEMORY (AGP_USER_TYPES) |
|
#define AGP_USER_CACHED_MEMORY (AGP_USER_TYPES + 1) |
|
|
|
extern struct agp_bridge_data *agp_bridge; |
|
extern struct list_head agp_bridges; |
|
|
|
extern struct agp_bridge_data *(*agp_find_bridge)(struct pci_dev *); |
|
|
|
extern void agp_free_memory(struct agp_memory *); |
|
extern struct agp_memory *agp_allocate_memory(struct agp_bridge_data *, size_t, u32); |
|
extern int agp_copy_info(struct agp_bridge_data *, struct agp_kern_info *); |
|
extern int agp_bind_memory(struct agp_memory *, off_t); |
|
extern int agp_unbind_memory(struct agp_memory *); |
|
extern void agp_enable(struct agp_bridge_data *, u32); |
|
extern struct agp_bridge_data *agp_backend_acquire(struct pci_dev *); |
|
extern void agp_backend_release(struct agp_bridge_data *); |
|
|
|
#endif /* _AGP_BACKEND_H */
|
|
|