linux-imx

/*

 * AGPGART driver.

 * Copyright (C) 2004 Silicon Graphics, Inc.

 * Copyright (C) 2002-2005 Dave Jones.

 * 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.

 *

 * TODO:

 * - Allocate more than order 0 pages to avoid too much linear map splitting.

 */

#include <linux/module.h>

#include <linux/pci.h>

#include <linux/pagemap.h>

#include <linux/miscdevice.h>

#include <linux/pm.h>

#include <linux/agp_backend.h>

#include <linux/vmalloc.h>

#include <linux/dma-mapping.h>

#include <linux/mm.h>

#include <linux/sched.h>

#include <linux/slab.h>

#include <asm/io.h>

#ifdef CONFIG_X86

#include <asm/set_memory.h>

#endif

#include <asm/pgtable.h>

#include "agp.h"

​

__u32 *agp_gatt_table;

int agp_memory_reserved;

​

/*

 * Needed by the Nforce GART driver for the time being. Would be

 * nice to do this some other way instead of needing this export.

 */

EXPORT_SYMBOL_GPL(agp_memory_reserved);

​

/*

 * Generic routines for handling agp_memory structures -

 * They use the basic page allocation routines to do the brunt of the work.

 */

​

void agp_free_key(int key)

{