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 /* 16 * Huge page size encoding when MAP_HUGETLB is specified, and a huge page 17 * size other than the default is desired. See hugetlb_encode.h. 18 * All known huge page size encodings are provided here. It is the 19 * responsibility of the application to know which sizes are supported on 20 * the running system. See mmap(2) man page for details. 21 */ 22 #define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 23 #define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 24 25 #define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 26 #define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 27 #define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 28 #define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 29 #define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 30 #define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 31 #define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB 32 #define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 33 #define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB 34 #define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 35 #define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 36 #define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 37 38 #endif /* _LINUX_MMAN_H */ 39