| 1 | /* $NetBSD: gfp.h,v 1.5 2014/07/17 14:07:44 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 | struct page; |
| 67 | |
| 68 | #endif /* _LINUX_GFP_H_ */ |
| 69 | |