1 /* $NetBSD: gfp.h,v 1.1 2018/08/27 15:45:06 riastradh Exp $ */ 2 3 /*- 4 * Copyright (c) 2013 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 _LINUX_GFP_H_ 33 #define _LINUX_GFP_H_ 34 35 /* GFP: `Get Free Page' */ 36 37 #include <sys/param.h> 38 #include <sys/cdefs.h> 39 40 typedef int gfp_t; 41 42 #define GFP_ATOMIC (__GFP_HIGH) 43 #define GFP_DMA32 (__GFP_DMA32) 44 #define GFP_HIGHUSER (__GFP_FS | __GFP_HARDWALL | __GFP_HIGHMEM | \ 45 __GFP_IO | __GFP_WAIT) 46 #define GFP_KERNEL (__GFP_FS | __GFP_IO | __GFP_WAIT) 47 #define GFP_TEMPORARY (__GFP_FS | __GFP_IO | __GFP_RECLAIMABLE | __GFP_WAIT) 48 #define GFP_USER (__GFP_FS | __GFP_HARDWALL | __GFP_IO | __GFP_WAIT) 49 50 #define GFP_NOWAIT (GFP_ATOMIC & ~__GFP_HIGH) 51 52 #define __GFP_COMP __BIT(0) 53 #define __GFP_DMA32 __BIT(1) 54 #define __GFP_FS __BIT(2) 55 #define __GFP_HARDWALL __BIT(3) 56 #define __GFP_HIGH __BIT(4) 57 #define __GFP_HIGHMEM __BIT(5) 58 #define __GFP_IO __BIT(6) 59 #define __GFP_NORETRY __BIT(7) 60 #define __GFP_NOWARN __BIT(8) 61 #define __GFP_NO_KSWAPD __BIT(9) 62 #define __GFP_RECLAIMABLE __BIT(10) 63 #define __GFP_WAIT __BIT(11) 64 #define __GFP_ZERO __BIT(12) 65 66 /* 67 * XXX Linux sez nobody should be using this in new code. We never 68 * fail in the wait case anyway, so the point is moot. 69 */ 70 #define __GFP_NOFAIL 0 71 72 struct page; 73 74 #endif /* _LINUX_GFP_H_ */ 75