linux/drivers/gpu/drm/ttm/ttm_module.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
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/*
 * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com>
 * 	    Jerome Glisse
 */
#include <linux/module.h>
#include <linux/device.h>
#include <linux/pgtable.h>
#include <linux/sched.h>
#include <linux/debugfs.h>
#include <drm/drm_sysfs.h>
#include <drm/ttm/ttm_caching.h>

#include "ttm_module.h"

/**
 * DOC: TTM
 *
 * TTM is a memory manager for accelerator devices with dedicated memory.
 *
 * The basic idea is that resources are grouped together in buffer objects of
 * certain size and TTM handles lifetime, movement and CPU mappings of those
 * objects.
 *
 * TODO: Add more design background and information here.
 */

/**
 * ttm_prot_from_caching - Modify the page protection according to the
 * ttm cacing mode
 * @caching: The ttm caching mode
 * @tmp: The original page protection
 *
 * Return: The modified page protection
 */
pgprot_t ttm_prot_from_caching(enum ttm_caching caching, pgprot_t tmp)
{ … }

MODULE_AUTHOR(…) …;
MODULE_DESCRIPTION(…) …;
MODULE_LICENSE(…) …;