cregit-Linux how code gets into the kernel

Release 4.16 include/linux/agpgart.h

Directory: include/linux
/*
 * 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>


#define AGPGART_MINOR 175


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 */

Overall Contributors

PersonTokensPropCommitsCommitProp
Linus Torvalds (pre-git)25183.67%430.77%
Dave Jones3511.67%215.38%
Andrew Morton31.00%17.69%
David Howells31.00%17.69%
Dave Airlie20.67%17.69%
David Woodhouse20.67%17.69%
Linus Torvalds20.67%17.69%
Al Viro10.33%17.69%
Greg Kroah-Hartman10.33%17.69%
Total300100.00%13100.00%
Directory: include/linux
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