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agpgart.h
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/* * 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 #define AGPIOC_BASE 'A' #define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, struct agp_info*) #define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1) #define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2) #define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, struct agp_setup*) #define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, struct agp_region*) #define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, struct agp_region*) #define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, struct agp_allocate*) #define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int) #define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, struct agp_bind*) #define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, struct agp_unbind*) #define AGPIOC_CHIPSET_FLUSH _IO (AGPIOC_BASE, 10) #define AGP_DEVICE "/dev/agpgart" #ifndef TRUE #define TRUE 1 #endif #ifndef FALSE #define FALSE 0 #endif #include <linux/types.h> struct agp_version { __u16 major; __u16 minor; }; typedef 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 */ __kernel_size_t aper_size; /* size of aperture */ __kernel_size_t pg_total; /* max pages (swap + system) */ __kernel_size_t pg_system; /* max pages (system) */ __kernel_size_t pg_used; /* current pages used */ } agp_info; typedef struct _agp_setup { __u32 agp_mode; /* mode info of bridge */ } agp_setup; /* * The "prot" down below needs still a "sleep" flag somehow ... */ typedef struct _agp_segment { __kernel_off_t pg_start; /* starting page to populate */ __kernel_size_t pg_count; /* number of pages */ int prot; /* prot flags for mmap */ } agp_segment; typedef struct _agp_region { __kernel_pid_t pid; /* pid of process */ __kernel_size_t seg_count; /* number of segments */ struct _agp_segment *seg_list; } agp_region; typedef struct _agp_allocate { int key; /* tag of allocation */ __kernel_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) */ } agp_allocate; typedef struct _agp_bind { int key; /* tag of allocation */ __kernel_off_t pg_start;/* starting page to populate */ } agp_bind; typedef struct _agp_unbind { int key; /* tag of allocation */ __u32 priority; /* priority for paging out */ } agp_unbind; #endif /* _AGP_H */