diff options
Diffstat (limited to 'arch/mips/include/uapi/asm/mman.h')
| -rw-r--r-- | arch/mips/include/uapi/asm/mman.h | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/arch/mips/include/uapi/asm/mman.h b/arch/mips/include/uapi/asm/mman.h index 46d3da0d4b92..cfcb876cae6b 100644 --- a/arch/mips/include/uapi/asm/mman.h +++ b/arch/mips/include/uapi/asm/mman.h @@ -64,7 +64,7 @@ #define MADV_NORMAL 0 /* no further special treatment */ #define MADV_RANDOM 1 /* expect random page references */ -#define MADV_SEQUENTIAL 2 /* expect sequential page references */ +#define MADV_SEQUENTIAL 2 /* expect sequential page references */ #define MADV_WILLNEED 3 /* will need these pages */ #define MADV_DONTNEED 4 /* don't need these pages */ @@ -73,18 +73,29 @@ #define MADV_DONTFORK 10 /* don't inherit across fork */ #define MADV_DOFORK 11 /* do inherit across fork */ -#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ +#define MADV_MERGEABLE 12 /* KSM may merge identical pages */ #define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */ -#define MADV_HWPOISON 100 /* poison a page for testing */ +#define MADV_HWPOISON 100 /* poison a page for testing */ #define MADV_HUGEPAGE 14 /* Worth backing with hugepages */ -#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */ +#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */ -#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, +#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump, overrides the coredump filter bits */ #define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */ /* compatibility flags */ #define MAP_FILE 0 +/* + * When MAP_HUGETLB is set bits [26:31] encode the log2 of the huge page size. + * This gives us 6 bits, which is enough until someone invents 128 bit address + * spaces. + * + * Assume these are all power of twos. + * When 0 use the default page size. + */ +#define MAP_HUGE_SHIFT 26 +#define MAP_HUGE_MASK 0x3f + #endif /* _ASM_MMAN_H */ |