1/*	$NetBSD: ttm_page_alloc.h,v 1.3 2021/12/19 09:58:07 riastradh Exp $	*/
2
3/*-
4 * Copyright (c) 2014 The NetBSD Foundation, Inc.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to The NetBSD Foundation
8 * by Taylor R. Campbell.
9 *
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
12 * are met:
13 * 1. Redistributions of source code must retain the above copyright
14 *    notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in the
17 *    documentation and/or other materials provided with the distribution.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29 * POSSIBILITY OF SUCH DAMAGE.
30 */
31
32#ifndef _DRM_TTM_TTM_PAGE_ALLOC_H_
33#define _DRM_TTM_TTM_PAGE_ALLOC_H_
34
35#include <drm/ttm/ttm_bo_driver.h>
36
37struct ttm_dma_tt;
38struct ttm_mem_global;
39
40int	ttm_bus_dma_populate(struct ttm_dma_tt *);
41void	ttm_bus_dma_unpopulate(struct ttm_dma_tt *);
42void	ttm_bus_dma_swapout(struct ttm_dma_tt *);
43
44static inline int
45ttm_page_alloc_init(struct ttm_mem_global *glob __unused,
46    unsigned max_pages __unused)
47{
48	return 0;
49}
50
51static inline void
52ttm_page_alloc_fini(void)
53{
54}
55
56static inline int
57ttm_dma_page_alloc_init(struct ttm_mem_global *glob __unused,
58    unsigned max_pages __unused)
59{
60	return 0;
61}
62
63static inline void
64ttm_dma_page_alloc_fini(void)
65{
66}
67
68#endif	/* _DRM_TTM_TTM_PAGE_ALLOC_H_ */
69