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1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */2#ifndef _UAPI_LINUX_MMAN_H3#define _UAPI_LINUX_MMAN_H4 5#include <asm/mman.h>6#include <asm-generic/hugetlb_encode.h>7#include <linux/types.h>8 9#define MREMAP_MAYMOVE 110#define MREMAP_FIXED 211#define MREMAP_DONTUNMAP 412 13#define OVERCOMMIT_GUESS 014#define OVERCOMMIT_ALWAYS 115#define OVERCOMMIT_NEVER 216 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#define MAP_DROPPABLE 0x08 /* Zero memory under memory pressure. */21 22/*23 * Huge page size encoding when MAP_HUGETLB is specified, and a huge page24 * size other than the default is desired. See hugetlb_encode.h.25 * All known huge page size encodings are provided here. It is the26 * responsibility of the application to know which sizes are supported on27 * the running system. See mmap(2) man page for details.28 */29#define MAP_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT30#define MAP_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK31 32#define MAP_HUGE_16KB HUGETLB_FLAG_ENCODE_16KB33#define MAP_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB34#define MAP_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB35#define MAP_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB36#define MAP_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB37#define MAP_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB38#define MAP_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB39#define MAP_HUGE_32MB HUGETLB_FLAG_ENCODE_32MB40#define MAP_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB41#define MAP_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB42#define MAP_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB43#define MAP_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB44#define MAP_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB45 46struct cachestat_range {47 __u64 off;48 __u64 len;49};50 51struct cachestat {52 __u64 nr_cache;53 __u64 nr_dirty;54 __u64 nr_writeback;55 __u64 nr_evicted;56 __u64 nr_recently_evicted;57};58 59#endif /* _UAPI_LINUX_MMAN_H */60