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* AGPGART module version 0.99

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* Permission is hereby granted, free of charge, to any person obtaining a

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* copy of this software and associated documentation files (the "Software"),

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* to deal in the Software without restriction, including without limitation

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* the rights to use, copy, modify, merge, publish, distribute, sublicense,

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* and/or sell copies of the Software, and to permit persons to whom the

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* Software is furnished to do so, subject to the following conditions:

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* The above copyright notice and this permission notice shall be included

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* in all copies or substantial portions of the Software.

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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS

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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL

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* JEFF HARTMANN, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,

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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR

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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE

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* OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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#ifndef _AGP_H

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#define _AGP_H

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#define AGPIOC_BASE 'A'

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#define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, struct agp_info*)

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#define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1)

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#define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2)

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#define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, struct agp_setup*)

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#define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, struct agp_region*)

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#define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, struct agp_region*)

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#define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, struct agp_allocate*)

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#define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)

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#define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, struct agp_bind*)

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#define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, struct agp_unbind*)

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#define AGPIOC_CHIPSET_FLUSH _IO (AGPIOC_BASE, 10)

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#define AGP_DEVICE "/dev/agpgart"

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#ifndef TRUE

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#define TRUE 1

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#endif

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#ifndef FALSE

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#define FALSE 0

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#endif

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#include <linux/types.h>

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#include <stdlib.h>

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struct agp_version {

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__u16 major;

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__u16 minor;

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};

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typedef struct _agp_info {

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struct agp_version version; /* version of the driver */

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__u32 bridge_id; /* bridge vendor/device */

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__u32 agp_mode; /* mode info of bridge */

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unsigned long aper_base;/* base of aperture */

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size_t aper_size; /* size of aperture */

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size_t pg_total; /* max pages (swap + system) */

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size_t pg_system; /* max pages (system) */

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size_t pg_used; /* current pages used */

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} agp_info;

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typedef struct _agp_setup {

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__u32 agp_mode; /* mode info of bridge */

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} agp_setup;

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* The "prot" down below needs still a "sleep" flag somehow ...

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typedef struct _agp_segment {

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__kernel_off_t pg_start; /* starting page to populate */

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__kernel_size_t pg_count; /* number of pages */

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int prot; /* prot flags for mmap */

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} agp_segment;

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typedef struct _agp_region {

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__kernel_pid_t pid; /* pid of process */

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__kernel_size_t seg_count; /* number of segments */

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struct _agp_segment *seg_list;

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} agp_region;

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typedef struct _agp_allocate {

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int key; /* tag of allocation */

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__kernel_size_t pg_count;/* number of pages */

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__u32 type; /* 0 == normal, other devspec */

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__u32 physical; /* device specific (some devices

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* need a phys address of the

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* actual page behind the gatt

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* table) */

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} agp_allocate;

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typedef struct _agp_bind {

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int key; /* tag of allocation */

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__kernel_off_t pg_start;/* starting page to populate */

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} agp_bind;

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typedef struct _agp_unbind {

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int key; /* tag of allocation */

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__u32 priority; /* priority for paging out */

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} agp_unbind;

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#endif /* _AGP_H */

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