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.
7 #ifndef _UAPI_ASM_POWERPC_MMAN_H
8 #define _UAPI_ASM_POWERPC_MMAN_H
10 #include <asm-generic/mman-common.h>
13 #define PROT_SAO 0x10 /* Strong Access Ordering */
15 #define MAP_RENAME MAP_ANONYMOUS /* In SunOS terminology */
16 #define MAP_NORESERVE 0x40 /* don't reserve swap pages */
17 #define MAP_LOCKED 0x80
19 #define MAP_GROWSDOWN 0x0100 /* stack-like segment */
20 #define MAP_DENYWRITE 0x0800 /* ETXTBSY */
21 #define MAP_EXECUTABLE 0x1000 /* mark it as an executable */
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 */
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 */
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
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 */
48 #endif /* _UAPI_ASM_POWERPC_MMAN_H */