1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef _UAPI_LINUX_MMAN_H 3#define _UAPI_LINUX_MMAN_H 4 5#include <asm/mman.h> 6#include <asm-generic/hugetlb_encode.h> 7#include <linux/types.h> 8 9#define MREMAP_MAYMOVE 1 10#define MREMAP_FIXED 2 11#define MREMAP_DONTUNMAP 4 12 13#define OVERCOMMIT_GUESS 0 14#define OVERCOMMIT_ALWAYS 1 15#define OVERCOMMIT_NEVER 2 16 17#define MAP_SHARED 0x01 /* Share changes */ 18#define MAP_PRIVATE 0x02 /* Changes are private */ 19#define MAP_SHARED_VALIDATE 0x03 /* share + validate extension flags */ 20 21/* 22 * Huge page size encoding when MAP_HUGETLB is specified, and a huge page 23 * size other than the default is desired. See hugetlb_encode.h. 24 * All known huge page size encodings are provided here. It is the 25 * responsibility of the application to know which sizes are supported on 26 * the running system. See mmap(2) man page for details. 27 */ 28#define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 29#define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 30 31#define MAP_HUGE_16KB HUGETLB_FLAG_ENCODE_16KB 32#define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 33#define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 34#define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 35#define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 36#define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 37#define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 38#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB 39#define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 40#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB 41#define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 42#define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 43#define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 44 45struct cachestat_range { 46 __u64 off; 47 __u64 len; 48}; 49 50struct cachestat { 51 __u64 nr_cache; 52 __u64 nr_dirty; 53 __u64 nr_writeback; 54 __u64 nr_evicted; 55 __u64 nr_recently_evicted; 56}; 57 58#endif /* _UAPI_LINUX_MMAN_H */ 59