agpgart.h
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上传日期:2013-04-10
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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 1
- #define AGPIOC_BASE 'A'
- #define AGPIOC_INFO _IOR (AGPIOC_BASE, 0, agp_info*)
- #define AGPIOC_ACQUIRE _IO (AGPIOC_BASE, 1)
- #define AGPIOC_RELEASE _IO (AGPIOC_BASE, 2)
- #define AGPIOC_SETUP _IOW (AGPIOC_BASE, 3, agp_setup*)
- #define AGPIOC_RESERVE _IOW (AGPIOC_BASE, 4, agp_region*)
- #define AGPIOC_PROTECT _IOW (AGPIOC_BASE, 5, agp_region*)
- #define AGPIOC_ALLOCATE _IOWR(AGPIOC_BASE, 6, agp_allocate*)
- #define AGPIOC_DEALLOCATE _IOW (AGPIOC_BASE, 7, int)
- #define AGPIOC_BIND _IOW (AGPIOC_BASE, 8, agp_bind*)
- #define AGPIOC_UNBIND _IOW (AGPIOC_BASE, 9, agp_unbind*)
- #define AGP_DEVICE "/dev/agpgart"
- #ifndef TRUE
- #define TRUE 1
- #endif
- #ifndef FALSE
- #define FALSE 0
- #endif
- #ifndef __KERNEL__
- #include <linux/types.h>
- #include <asm/types.h>
- typedef struct _agp_version {
- __u16 major;
- __u16 minor;
- } agp_version;
- typedef struct _agp_info {
- agp_version version; /* version of the driver */
- __u32 bridge_id; /* bridge vendor/device */
- __u32 agp_mode; /* mode info of bridge */
- off_t 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 */
- } 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 {
- off_t pg_start; /* starting page to populate */
- size_t pg_count; /* number of pages */
- int prot; /* prot flags for mmap */
- } agp_segment;
- typedef struct _agp_region {
- pid_t pid; /* pid of process */
- size_t seg_count; /* number of segments */
- struct _agp_segment *seg_list;
- } agp_region;
- typedef 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) */
- } agp_allocate;
- typedef struct _agp_bind {
- int key; /* tag of allocation */
- 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;
- #else /* __KERNEL__ */
- #define AGPGART_MINOR 175
- #define AGP_UNLOCK() up(&(agp_fe.agp_mutex));
- #define AGP_LOCK() down(&(agp_fe.agp_mutex));
- #define AGP_LOCK_INIT() sema_init(&(agp_fe.agp_mutex), 1)
- #ifndef _AGP_BACKEND_H
- typedef struct _agp_version {
- u16 major;
- u16 minor;
- } agp_version;
- #endif
- typedef struct _agp_info {
- agp_version version; /* version of the driver */
- u32 bridge_id; /* bridge vendor/device */
- u32 agp_mode; /* mode info of bridge */
- off_t 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 */
- } 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 {
- off_t pg_start; /* starting page to populate */
- size_t pg_count; /* number of pages */
- int prot; /* prot flags for mmap */
- } agp_segment;
- typedef struct _agp_segment_priv {
- off_t pg_start;
- size_t pg_count;
- pgprot_t prot;
- } agp_segment_priv;
- typedef struct _agp_region {
- pid_t pid; /* pid of process */
- size_t seg_count; /* number of segments */
- struct _agp_segment *seg_list;
- } agp_region;
- typedef 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) */
- } agp_allocate;
- typedef struct _agp_bind {
- int key; /* tag of allocation */
- 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;
- typedef struct _agp_client {
- struct _agp_client *next;
- struct _agp_client *prev;
- pid_t pid;
- int num_segments;
- agp_segment_priv **segments;
- } agp_client;
- typedef struct _agp_controller {
- struct _agp_controller *next;
- struct _agp_controller *prev;
- pid_t pid;
- int num_clients;
- agp_memory *pool;
- agp_client *clients;
- } agp_controller;
- #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
- typedef struct _agp_file_private {
- struct _agp_file_private *next;
- struct _agp_file_private *prev;
- pid_t my_pid;
- long access_flags; /* long req'd for set_bit --RR */
- } agp_file_private;
- struct agp_front_data {
- struct semaphore agp_mutex;
- agp_controller *current_controller;
- agp_controller *controllers;
- agp_file_private *file_priv_list;
- u8 used_by_controller;
- u8 backend_acquired;
- };
- #endif /* __KERNEL__ */
- #endif /* _AGP_H */