1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2*4882a593Smuzhiyun #ifndef _UAPI_LINUX_MMAN_H 3*4882a593Smuzhiyun #define _UAPI_LINUX_MMAN_H 4*4882a593Smuzhiyun 5*4882a593Smuzhiyun #include <asm/mman.h> 6*4882a593Smuzhiyun #include <asm-generic/hugetlb_encode.h> 7*4882a593Smuzhiyun 8*4882a593Smuzhiyun #define MREMAP_MAYMOVE 1 9*4882a593Smuzhiyun #define MREMAP_FIXED 2 10*4882a593Smuzhiyun #define MREMAP_DONTUNMAP 4 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun #define OVERCOMMIT_GUESS 0 13*4882a593Smuzhiyun #define OVERCOMMIT_ALWAYS 1 14*4882a593Smuzhiyun #define OVERCOMMIT_NEVER 2 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun #define MAP_SHARED 0x01 /* Share changes */ 17*4882a593Smuzhiyun #define MAP_PRIVATE 0x02 /* Changes are private */ 18*4882a593Smuzhiyun #define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */ 19*4882a593Smuzhiyun 20*4882a593Smuzhiyun /* 21*4882a593Smuzhiyun * Huge page size encoding when MAP_HUGETLB is specified, and a huge page 22*4882a593Smuzhiyun * size other than the default is desired. See hugetlb_encode.h. 23*4882a593Smuzhiyun * All known huge page size encodings are provided here. It is the 24*4882a593Smuzhiyun * responsibility of the application to know which sizes are supported on 25*4882a593Smuzhiyun * the running system. See mmap(2) man page for details. 26*4882a593Smuzhiyun */ 27*4882a593Smuzhiyun #define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 28*4882a593Smuzhiyun #define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun #define MAP_HUGE_16KB HUGETLB_FLAG_ENCODE_16KB 31*4882a593Smuzhiyun #define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 32*4882a593Smuzhiyun #define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 33*4882a593Smuzhiyun #define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 34*4882a593Smuzhiyun #define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 35*4882a593Smuzhiyun #define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 36*4882a593Smuzhiyun #define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 37*4882a593Smuzhiyun #define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB 38*4882a593Smuzhiyun #define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 39*4882a593Smuzhiyun #define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB 40*4882a593Smuzhiyun #define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 41*4882a593Smuzhiyun #define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 42*4882a593Smuzhiyun #define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 43*4882a593Smuzhiyun 44*4882a593Smuzhiyun #endif /* _UAPI_LINUX_MMAN_H */ 45