linux/drivers/gpu/drm/ttm/ttm_agp_backend.c

/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/**************************************************************************
 *
 * Copyright (c) 2006-2009 VMware, Inc., Palo Alto, CA., USA
 * All Rights Reserved.
 *
 * 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, sub license, 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 (including the
 * next paragraph) 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 NON-INFRINGEMENT. IN NO EVENT SHALL
 * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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/*
 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
 *          Keith Packard.
 */

#define pr_fmt(fmt) …

#include <drm/ttm/ttm_device.h>
#include <drm/ttm/ttm_tt.h>
#include <drm/ttm/ttm_resource.h>
#include <linux/agp_backend.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/io.h>
#include <asm/agp.h>

struct ttm_agp_backend { … };

int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_resource *bo_mem)
{ … }
EXPORT_SYMBOL(…);

void ttm_agp_unbind(struct ttm_tt *ttm)
{ … }
EXPORT_SYMBOL(…);

bool ttm_agp_is_bound(struct ttm_tt *ttm)
{ … }
EXPORT_SYMBOL(…);

void ttm_agp_destroy(struct ttm_tt *ttm)
{ … }
EXPORT_SYMBOL(…);

struct ttm_tt *ttm_agp_tt_create(struct ttm_buffer_object *bo,
				 struct agp_bridge_data *bridge,
				 uint32_t page_flags)
{ … }
EXPORT_SYMBOL(…);