1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef _LINUX_MMAN_H 3#define _LINUX_MMAN_H 4 5#include <asm/mman.h> 6#include <asm-generic/hugetlb_encode.h> 7 8#define MREMAP_MAYMOVE 1 9#define MREMAP_FIXED 2 10 11#define OVERCOMMIT_GUESS 0 12#define OVERCOMMIT_ALWAYS 1 13#define OVERCOMMIT_NEVER 2 14 15#define MAP_SHARED 0x01 /* Share changes */ 16#define MAP_PRIVATE 0x02 /* Changes are private */ 17#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */ 18 19/* 20 * Huge page size encoding when MAP_HUGETLB is specified, and a huge page 21 * size other than the default is desired. See hugetlb_encode.h. 22 * All known huge page size encodings are provided here. It is the 23 * responsibility of the application to know which sizes are supported on 24 * the running system. See mmap(2) man page for details. 25 */ 26#define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 27#define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 28 29#define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 30#define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 31#define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 32#define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 33#define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 34#define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 35#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB 36#define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 37#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB 38#define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 39#define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 40#define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 41 42#endif /* _LINUX_MMAN_H */ 43