130692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#ifndef __ASM_GENERIC_MMAN_COMMON_H 230692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define __ASM_GENERIC_MMAN_COMMON_H 330692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 430692c65c4174412c90e79489e98ab85c1a7412fBen Cheng/* 530692c65c4174412c90e79489e98ab85c1a7412fBen Cheng Author: Michael S. Tsirkin <mst@mellanox.co.il>, Mellanox Technologies Ltd. 630692c65c4174412c90e79489e98ab85c1a7412fBen Cheng Based on: asm-xxx/mman.h 730692c65c4174412c90e79489e98ab85c1a7412fBen Cheng*/ 830692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 930692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define PROT_READ 0x1 /* page can be read */ 1030692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define PROT_WRITE 0x2 /* page can be written */ 1130692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define PROT_EXEC 0x4 /* page can be executed */ 1230692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define PROT_SEM 0x8 /* page may be used for atomic ops */ 1330692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define PROT_NONE 0x0 /* page can not be accessed */ 1430692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ 1530692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ 1630692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 1730692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_SHARED 0x01 /* Share changes */ 1830692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_PRIVATE 0x02 /* Changes are private */ 1930692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_TYPE 0x0f /* Mask for type of mapping */ 2030692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_FIXED 0x10 /* Interpret addr exactly */ 2130692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_ANONYMOUS 0x20 /* don't use a file */ 2230692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#ifdef CONFIG_MMAP_ALLOW_UNINITIALIZED 2330692c65c4174412c90e79489e98ab85c1a7412fBen Cheng# define MAP_UNINITIALIZED 0x4000000 /* For anonymous mmap, memory could be uninitialized */ 2430692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#else 2530692c65c4174412c90e79489e98ab85c1a7412fBen Cheng# define MAP_UNINITIALIZED 0x0 /* Don't support this flag */ 2630692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#endif 2730692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 2830692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MS_ASYNC 1 /* sync memory asynchronously */ 2930692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MS_INVALIDATE 2 /* invalidate the caches */ 3030692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MS_SYNC 4 /* synchronous memory sync */ 3130692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 3230692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_NORMAL 0 /* no further special treatment */ 3330692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_RANDOM 1 /* expect random page references */ 3430692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_SEQUENTIAL 2 /* expect sequential page references */ 3530692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_WILLNEED 3 /* will need these pages */ 3630692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_DONTNEED 4 /* don't need these pages */ 3730692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 3830692c65c4174412c90e79489e98ab85c1a7412fBen Cheng/* common parameters: try to keep these consistent across architectures */ 3930692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_REMOVE 9 /* remove these pages & resources */ 4030692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_DONTFORK 10 /* don't inherit across fork */ 4130692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_DOFORK 11 /* do inherit across fork */ 4230692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_HWPOISON 100 /* poison a page for testing */ 4330692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */ 4430692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 4530692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ 4630692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */ 4730692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 4830692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */ 4930692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */ 5030692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 5130692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, 5230692c65c4174412c90e79489e98ab85c1a7412fBen Cheng overrides the coredump filter bits */ 5330692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */ 5430692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 5530692c65c4174412c90e79489e98ab85c1a7412fBen Cheng/* compatibility flags */ 5630692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_FILE 0 5730692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 5830692c65c4174412c90e79489e98ab85c1a7412fBen Cheng/* 5930692c65c4174412c90e79489e98ab85c1a7412fBen Cheng * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size. 6030692c65c4174412c90e79489e98ab85c1a7412fBen Cheng * This gives us 6 bits, which is enough until someone invents 128 bit address 6130692c65c4174412c90e79489e98ab85c1a7412fBen Cheng * spaces. 6230692c65c4174412c90e79489e98ab85c1a7412fBen Cheng * 6330692c65c4174412c90e79489e98ab85c1a7412fBen Cheng * Assume these are all power of twos. 6430692c65c4174412c90e79489e98ab85c1a7412fBen Cheng * When 0 use the default page size. 6530692c65c4174412c90e79489e98ab85c1a7412fBen Cheng */ 6630692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_HUGE_SHIFT 26 6730692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#define MAP_HUGE_MASK 0x3f 6830692c65c4174412c90e79489e98ab85c1a7412fBen Cheng 6930692c65c4174412c90e79489e98ab85c1a7412fBen Cheng#endif /* __ASM_GENERIC_MMAN_COMMON_H */ 70