agp_context.h

/*
 * AGPGART module version 2.0
 * Copyright (C) 2003 Tungsten Graphics
 * Copyright (C) 2003 Jeff Hartmann
 *
 * 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_CONTEXT_H
#define _AGP_CONTEXT_H

void agp_ctx_free_memory(int ctx, agp_memory *mem);
agp_memory *agp_ctx_allocate_memory(int ctx, size_t pages, u32 type);
int agp_ctx_copy_info(int ctx, agp_kern_info *ptr);
int agp_ctx_bind_memory(int ctx, agp_memory *memory, off_t pg_start);
int agp_ctx_unbind_memory(int ctx, agp_memory *memory);
void agp_ctx_enable(int ctx, u32);
int agp_ctx_backend_acquire(int ctx);
void agp_ctx_backend_release(int ctx);
int agp_ctx_get_map(int ctx, int key, agp_memory **map);
void *agp_ctx_kmap(int ctx, agp_memory *memory, unsigned long start_ofs,
		   unsigned long size);
int agp_ctx_vma_map_memory(int ctx, struct vm_area_struct *vma,
			   agp_memory *memory,
			   unsigned long start_ofs);
unsigned long agp_ctx_usermap(int ctx,
			      struct file *filp,
			      agp_memory *mem,
			      unsigned long start_ofs,
			      unsigned long size,
			      unsigned long prot,
			      unsigned long flags);
#endif /* _AGP_CONTEXT_H */