diff options
Diffstat (limited to 'arch/parisc/include/uapi/asm/mman.h')
| -rw-r--r-- | arch/parisc/include/uapi/asm/mman.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/parisc/include/uapi/asm/mman.h b/arch/parisc/include/uapi/asm/mman.h index 12219ebce869..294d251ca7b2 100644 --- a/arch/parisc/include/uapi/asm/mman.h +++ b/arch/parisc/include/uapi/asm/mman.h @@ -70,4 +70,15 @@ #define MAP_FILE 0 #define MAP_VARIABLE 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 /* __PARISC_MMAN_H__ */ |