Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 5270 | serge | 1 | /* |
| 2 | * AGPGART backend specific includes. Not for userspace consumption. |
||
| 3 | * |
||
| 4 | * Copyright (C) 2004 Silicon Graphics, Inc. |
||
| 5 | * Copyright (C) 2002-2003 Dave Jones |
||
| 6 | * Copyright (C) 1999 Jeff Hartmann |
||
| 7 | * Copyright (C) 1999 Precision Insight, Inc. |
||
| 8 | * Copyright (C) 1999 Xi Graphics, Inc. |
||
| 9 | * |
||
| 10 | * Permission is hereby granted, free of charge, to any person obtaining a |
||
| 11 | * copy of this software and associated documentation files (the "Software"), |
||
| 12 | * to deal in the Software without restriction, including without limitation |
||
| 13 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
||
| 14 | * and/or sell copies of the Software, and to permit persons to whom the |
||
| 15 | * Software is furnished to do so, subject to the following conditions: |
||
| 16 | * |
||
| 17 | * The above copyright notice and this permission notice shall be included |
||
| 18 | * in all copies or substantial portions of the Software. |
||
| 19 | * |
||
| 20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
||
| 21 | * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
||
| 22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
||
| 23 | * JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM, |
||
| 24 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR |
||
| 25 | * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE |
||
| 26 | * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
||
| 27 | * |
||
| 28 | */ |
||
| 29 | |||
| 30 | #ifndef _AGP_BACKEND_H |
||
| 31 | #define _AGP_BACKEND_H 1 |
||
| 32 | |||
| 33 | #include |
||
| 34 | |||
| 35 | enum chipset_type { |
||
| 36 | NOT_SUPPORTED, |
||
| 37 | SUPPORTED, |
||
| 38 | }; |
||
| 39 | |||
| 40 | struct agp_version { |
||
| 41 | u16 major; |
||
| 42 | u16 minor; |
||
| 43 | }; |
||
| 44 | |||
| 45 | struct agp_kern_info { |
||
| 46 | struct agp_version version; |
||
| 47 | struct pci_dev *device; |
||
| 48 | enum chipset_type chipset; |
||
| 49 | unsigned long mode; |
||
| 50 | unsigned long aper_base; |
||
| 51 | size_t aper_size; |
||
| 52 | int max_memory; /* In pages */ |
||
| 53 | int current_memory; |
||
| 54 | bool cant_use_aperture; |
||
| 55 | unsigned long page_mask; |
||
| 56 | const struct vm_operations_struct *vm_ops; |
||
| 57 | }; |
||
| 58 | |||
| 59 | /* |
||
| 60 | * The agp_memory structure has information about the block of agp memory |
||
| 61 | * allocated. A caller may manipulate the next and prev pointers to link |
||
| 62 | * each allocated item into a list. These pointers are ignored by the backend. |
||
| 63 | * Everything else should never be written to, but the caller may read any of |
||
| 64 | * the items to determine the status of this block of agp memory. |
||
| 65 | */ |
||
| 66 | |||
| 67 | struct agp_bridge_data; |
||
| 68 | |||
| 69 | struct agp_memory { |
||
| 70 | struct agp_memory *next; |
||
| 71 | struct agp_memory *prev; |
||
| 72 | struct agp_bridge_data *bridge; |
||
| 73 | struct page **pages; |
||
| 74 | size_t page_count; |
||
| 75 | int key; |
||
| 76 | int num_scratch_pages; |
||
| 77 | off_t pg_start; |
||
| 78 | u32 type; |
||
| 79 | u32 physical; |
||
| 80 | bool is_bound; |
||
| 81 | bool is_flushed; |
||
| 82 | /* list of agp_memory mapped to the aperture */ |
||
| 83 | struct list_head mapped_list; |
||
| 84 | /* DMA-mapped addresses */ |
||
| 85 | struct scatterlist *sg_list; |
||
| 86 | int num_sg; |
||
| 87 | }; |
||
| 88 | |||
| 89 | #define AGP_NORMAL_MEMORY 0 |
||
| 90 | |||
| 91 | #define AGP_USER_TYPES (1 << 16) |
||
| 92 | #define AGP_USER_MEMORY (AGP_USER_TYPES) |
||
| 93 | #define AGP_USER_CACHED_MEMORY (AGP_USER_TYPES + 1) |
||
| 94 | |||
| 95 | extern struct agp_bridge_data *agp_bridge; |
||
| 96 | extern struct list_head agp_bridges; |
||
| 97 | |||
| 98 | extern struct agp_bridge_data *(*agp_find_bridge)(struct pci_dev *); |
||
| 99 | |||
| 100 | extern void agp_free_memory(struct agp_memory *); |
||
| 101 | extern struct agp_memory *agp_allocate_memory(struct agp_bridge_data *, size_t, u32); |
||
| 102 | extern int agp_copy_info(struct agp_bridge_data *, struct agp_kern_info *); |
||
| 103 | extern int agp_bind_memory(struct agp_memory *, off_t); |
||
| 104 | extern int agp_unbind_memory(struct agp_memory *); |
||
| 105 | extern void agp_enable(struct agp_bridge_data *, u32); |
||
| 106 | extern struct agp_bridge_data *agp_backend_acquire(struct pci_dev *); |
||
| 107 | extern void agp_backend_release(struct agp_bridge_data *); |
||
| 108 | |||
| 109 | #endif /* _AGP_BACKEND_H */ |