110 lines
3.3 KiB
C
110 lines
3.3 KiB
C
|
/*
|
||
|
|
* 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
|
||
|
|
|
||
|
|
#ifdef __KERNEL__
|
||
|
|
|
||
|
|
#ifndef TRUE
|
||
|
|
#define TRUE 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef FALSE
|
||
|
|
#define FALSE 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
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;
|
||
|
|
int cant_use_aperture;
|
||
|
|
unsigned long page_mask;
|
||
|
|
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;
|
||
|
|
unsigned long *memory;
|
||
|
|
size_t page_count;
|
||
|
|
int key;
|
||
|
|
int num_scratch_pages;
|
||
|
|
off_t pg_start;
|
||
|
|
u32 type;
|
||
|
|
u32 physical;
|
||
|
|
u8 is_bound;
|
||
|
|
u8 is_flushed;
|
||
|
|
};
|
||
|
|
|
||
|
|
#define AGP_NORMAL_MEMORY 0
|
||
|
|
|
||
|
|
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 /* __KERNEL__ */
|
||
|
|
#endif /* _AGP_BACKEND_H */
|