1*8cf108c5SZhang Yi /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*8cf108c5SZhang Yi #ifndef _LINUX_MMAN_H 3*8cf108c5SZhang Yi #define _LINUX_MMAN_H 4*8cf108c5SZhang Yi 5*8cf108c5SZhang Yi #include <asm/mman.h> 6*8cf108c5SZhang Yi #include <asm-generic/hugetlb_encode.h> 7*8cf108c5SZhang Yi 8*8cf108c5SZhang Yi #define MREMAP_MAYMOVE 1 9*8cf108c5SZhang Yi #define MREMAP_FIXED 2 10*8cf108c5SZhang Yi 11*8cf108c5SZhang Yi #define OVERCOMMIT_GUESS 0 12*8cf108c5SZhang Yi #define OVERCOMMIT_ALWAYS 1 13*8cf108c5SZhang Yi #define OVERCOMMIT_NEVER 2 14*8cf108c5SZhang Yi 15*8cf108c5SZhang Yi /* 16*8cf108c5SZhang Yi * Huge page size encoding when MAP_HUGETLB is specified, and a huge page 17*8cf108c5SZhang Yi * size other than the default is desired. See hugetlb_encode.h. 18*8cf108c5SZhang Yi * All known huge page size encodings are provided here. It is the 19*8cf108c5SZhang Yi * responsibility of the application to know which sizes are supported on 20*8cf108c5SZhang Yi * the running system. See mmap(2) man page for details. 21*8cf108c5SZhang Yi */ 22*8cf108c5SZhang Yi #define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 23*8cf108c5SZhang Yi #define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 24*8cf108c5SZhang Yi 25*8cf108c5SZhang Yi #define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 26*8cf108c5SZhang Yi #define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 27*8cf108c5SZhang Yi #define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 28*8cf108c5SZhang Yi #define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 29*8cf108c5SZhang Yi #define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 30*8cf108c5SZhang Yi #define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 31*8cf108c5SZhang Yi #define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB 32*8cf108c5SZhang Yi #define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 33*8cf108c5SZhang Yi #define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB 34*8cf108c5SZhang Yi #define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 35*8cf108c5SZhang Yi #define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 36*8cf108c5SZhang Yi #define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 37*8cf108c5SZhang Yi 38*8cf108c5SZhang Yi #endif /* _LINUX_MMAN_H */ 39