mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-21 11:44:01 +08:00
f0f37e2f77
* mark struct vm_area_struct::vm_ops as const * mark vm_ops in AGP code But leave TTM code alone, something is fishy there with global vm_ops being used. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
113 lines
3.6 KiB
C
113 lines
3.6 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
|
|
|
|
#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;
|
|
bool vmalloc_flag;
|
|
/* 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 int agp_rebind_memory(void);
|
|
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 *);
|
|
extern void agp_flush_chipset(struct agp_bridge_data *);
|
|
|
|
#endif /* _AGP_BACKEND_H */
|