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Linux kernel mirror (for testing)
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1/*
2 * This program is free software; you can redistribute it and/or
3 * modify it under the terms of the GNU General Public License
4 * as published by the Free Software Foundation; either version
5 * 2 of the License, or (at your option) any later version.
6 */
7#ifndef _UAPI_ASM_POWERPC_MMAN_H
8#define _UAPI_ASM_POWERPC_MMAN_H
9
10#include <asm-generic/mman-common.h>
11
12
13#define PROT_SAO 0x10 /* Strong Access Ordering */
14
15#define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */
16#define MAP_NORESERVE 0x40 /* don't reserve swap pages */
17#define MAP_LOCKED 0x80
18
19#define MAP_GROWSDOWN 0x0100 /* stack-like segment */
20#define MAP_DENYWRITE 0x0800 /* ETXTBSY */
21#define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
22
23#define MCL_CURRENT 0x2000 /* lock all currently mapped pages */
24#define MCL_FUTURE 0x4000 /* lock all additions to address space */
25#define MCL_ONFAULT 0x8000 /* lock all pages that are faulted in */
26
27#define MAP_POPULATE 0x8000 /* populate (prefault) pagetables */
28#define MAP_NONBLOCK 0x10000 /* do not block on IO */
29#define MAP_STACK 0x20000 /* give out an address that is best suited for process/thread stacks */
30#define MAP_HUGETLB 0x40000 /* create a huge page mapping */
31
32/*
33 * When MAP_HUGETLB is set, bits [26:31] of the flags argument to mmap(2),
34 * encode the log2 of the huge page size. A value of zero indicates that the
35 * default huge page size should be used. To use a non-default huge page size,
36 * one of these defines can be used, or the size can be encoded by hand. Note
37 * that on most systems only a subset, or possibly none, of these sizes will be
38 * available.
39 */
40#define MAP_HUGE_512KB (19 << MAP_HUGE_SHIFT) /* 512KB HugeTLB Page */
41#define MAP_HUGE_1MB (20 << MAP_HUGE_SHIFT) /* 1MB HugeTLB Page */
42#define MAP_HUGE_2MB (21 << MAP_HUGE_SHIFT) /* 2MB HugeTLB Page */
43#define MAP_HUGE_8MB (23 << MAP_HUGE_SHIFT) /* 8MB HugeTLB Page */
44#define MAP_HUGE_16MB (24 << MAP_HUGE_SHIFT) /* 16MB HugeTLB Page */
45#define MAP_HUGE_1GB (30 << MAP_HUGE_SHIFT) /* 1GB HugeTLB Page */
46#define MAP_HUGE_16GB (34 << MAP_HUGE_SHIFT) /* 16GB HugeTLB Page */
47
48#endif /* _UAPI_ASM_POWERPC_MMAN_H */