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 * $FreeBSD$ 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 * 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 58 dma_pool_destroy(struct dma_pool *pool) 59 { 60 61 linux_dma_pool_destroy(pool); 62 } 63 64 static inline void * 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 * 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 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