| /* |
| * AGPGART module version 0.99 |
| * 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_H |
| #define _AGP_H 1 |
| |
| #include <linux/mutex.h> |
| #include <linux/agp_backend.h> |
| #include <uapi/linux/agpgart.h> |
| |
| struct agp_info { |
| struct agp_version version; /* version of the driver */ |
| u32 bridge_id; /* bridge vendor/device */ |
| u32 agp_mode; /* mode info of bridge */ |
| unsigned long aper_base;/* base of aperture */ |
| size_t aper_size; /* size of aperture */ |
| size_t pg_total; /* max pages (swap + system) */ |
| size_t pg_system; /* max pages (system) */ |
| size_t pg_used; /* current pages used */ |
| }; |
| |
| struct agp_setup { |
| u32 agp_mode; /* mode info of bridge */ |
| }; |
| |
| /* |
| * The "prot" down below needs still a "sleep" flag somehow ... |
| */ |
| struct agp_segment { |
| off_t pg_start; /* starting page to populate */ |
| size_t pg_count; /* number of pages */ |
| int prot; /* prot flags for mmap */ |
| }; |
| |
| struct agp_segment_priv { |
| off_t pg_start; |
| size_t pg_count; |
| pgprot_t prot; |
| }; |
| |
| struct agp_region { |
| pid_t pid; /* pid of process */ |
| size_t seg_count; /* number of segments */ |
| struct agp_segment *seg_list; |
| }; |
| |
| struct agp_allocate { |
| int key; /* tag of allocation */ |
| size_t pg_count; /* number of pages */ |
| u32 type; /* 0 == normal, other devspec */ |
| u32 physical; /* device specific (some devices |
| * need a phys address of the |
| * actual page behind the gatt |
| * table) */ |
| }; |
| |
| struct agp_bind { |
| int key; /* tag of allocation */ |
| off_t pg_start; /* starting page to populate */ |
| }; |
| |
| struct agp_unbind { |
| int key; /* tag of allocation */ |
| u32 priority; /* priority for paging out */ |
| }; |
| |
| struct agp_client { |
| struct agp_client *next; |
| struct agp_client *prev; |
| pid_t pid; |
| int num_segments; |
| struct agp_segment_priv **segments; |
| }; |
| |
| struct agp_controller { |
| struct agp_controller *next; |
| struct agp_controller *prev; |
| pid_t pid; |
| int num_clients; |
| struct agp_memory *pool; |
| struct agp_client *clients; |
| }; |
| |
| #define AGP_FF_ALLOW_CLIENT 0 |
| #define AGP_FF_ALLOW_CONTROLLER 1 |
| #define AGP_FF_IS_CLIENT 2 |
| #define AGP_FF_IS_CONTROLLER 3 |
| #define AGP_FF_IS_VALID 4 |
| |
| struct agp_file_private { |
| struct agp_file_private *next; |
| struct agp_file_private *prev; |
| pid_t my_pid; |
| unsigned long access_flags; /* long req'd for set_bit --RR */ |
| }; |
| |
| struct agp_front_data { |
| struct mutex agp_mutex; |
| struct agp_controller *current_controller; |
| struct agp_controller *controllers; |
| struct agp_file_private *file_priv_list; |
| bool used_by_controller; |
| bool backend_acquired; |
| }; |
| |
| #endif /* _AGP_H */ |