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ttm_page_alloc.h revision 1.1.6.2 
      1 /*	$NetBSD: ttm_page_alloc.h,v 1.1.6.2 2014/08/20 00:04:21 tls 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 struct ttm_dma_tt;
     36 struct ttm_mem_global;
     37 
     38 int	ttm_bus_dma_populate(struct ttm_dma_tt *);
     39 void	ttm_bus_dma_unpopulate(struct ttm_dma_tt *);
     40 
     41 static inline int
     42 ttm_page_alloc_init(struct ttm_mem_global *glob __unused,
     43     unsigned max_pages __unused)
     44 {
     45 	return 0;
     46 }
     47 
     48 static inline void
     49 ttm_page_alloc_fini(void)
     50 {
     51 }
     52 
     53 static inline int
     54 ttm_dma_page_alloc_init(struct ttm_mem_global *glob __unused,
     55     unsigned max_pages __unused)
     56 {
     57 	return 0;
     58 }
     59 
     60 static inline void
     61 ttm_dma_page_alloc_fini(void)
     62 {
     63 }
     64 
     65 #endif	/* _DRM_TTM_TTM_PAGE_ALLOC_H_ */
     66