1 /*-
2 * Copyright (c) 2010 Isilon Systems, Inc.
3 * Copyright (c) 2010 iX Systems, Inc.
4 * Copyright (c) 2010 Panasas, Inc.
5 * Copyright (c) 2013, 2014 Mellanox Technologies, Ltd.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice unmodified, this list of conditions, and the following
13 * disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 *
29 * $FreeBSD: stable/12/sys/compat/linuxkpi/common/include/linux/dmapool.h 360525 2020-05-01 09:46:27Z hselasky $
30 */
31 #ifndef _LINUX_DMAPOOL_H_
32 #define _LINUX_DMAPOOL_H_
33
34 #include <linux/types.h>
35 #include <linux/io.h>
36 #include <linux/scatterlist.h>
37 #include <linux/device.h>
38 #include <linux/slab.h>
39
40 struct dma_pool;
41 struct dma_pool *linux_dma_pool_create(char *name, struct device *dev,
42 size_t size, size_t align, size_t boundary);
43 void linux_dma_pool_destroy(struct dma_pool *pool);
44 void *linux_dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags,
45 dma_addr_t *handle);
46 void linux_dma_pool_free(struct dma_pool *pool, void *vaddr,
47 dma_addr_t dma_addr);
48
49 static inline struct dma_pool *
dma_pool_create(char * name,struct device * dev,size_t size,size_t align,size_t boundary)50 dma_pool_create(char *name, struct device *dev, size_t size,
51 size_t align, size_t boundary)
52 {
53
54 return (linux_dma_pool_create(name, dev, size, align, boundary));
55 }
56
57 static inline void
dma_pool_destroy(struct dma_pool * pool)58 dma_pool_destroy(struct dma_pool *pool)
59 {
60
61 linux_dma_pool_destroy(pool);
62 }
63
64 static inline void *
dma_pool_alloc(struct dma_pool * pool,gfp_t mem_flags,dma_addr_t * handle)65 dma_pool_alloc(struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle)
66 {
67
68 return (linux_dma_pool_alloc(pool, mem_flags, handle));
69 }
70
71 static inline void *
dma_pool_zalloc(struct dma_pool * pool,gfp_t mem_flags,dma_addr_t * handle)72 dma_pool_zalloc(struct dma_pool *pool, gfp_t mem_flags, dma_addr_t *handle)
73 {
74
75 return (dma_pool_alloc(pool, mem_flags | __GFP_ZERO, handle));
76 }
77
78 static inline void
dma_pool_free(struct dma_pool * pool,void * vaddr,dma_addr_t dma_addr)79 dma_pool_free(struct dma_pool *pool, void *vaddr, dma_addr_t dma_addr)
80 {
81
82 linux_dma_pool_free(pool, vaddr, dma_addr);
83 }
84
85
86 #endif /* _LINUX_DMAPOOL_H_ */
87