| #ifndef __ALPHA_MMAN_H__ |
| #define __ALPHA_MMAN_H__ |
| |
| #define PROT_READ 0x1 /* page can be read */ |
| #define PROT_WRITE 0x2 /* page can be written */ |
| #define PROT_EXEC 0x4 /* page can be executed */ |
| #define PROT_SEM 0x8 /* page may be used for atomic ops */ |
| #define PROT_NONE 0x0 /* page can not be accessed */ |
| #define PROT_GROWSDOWN 0x01000000 /* mprotect flag: extend change to start of growsdown vma */ |
| #define PROT_GROWSUP 0x02000000 /* mprotect flag: extend change to end of growsup vma */ |
| |
| #define MAP_SHARED 0x01 /* Share changes */ |
| #define MAP_PRIVATE 0x02 /* Changes are private */ |
| #define MAP_TYPE 0x0f /* Mask for type of mapping (OSF/1 is _wrong_) */ |
| #define MAP_FIXED 0x100 /* Interpret addr exactly */ |
| #define MAP_ANONYMOUS 0x10 /* don't use a file */ |
| |
| /* not used by linux, but here to make sure we don't clash with OSF/1 defines */ |
| #define _MAP_HASSEMAPHORE 0x0200 |
| #define _MAP_INHERIT 0x0400 |
| #define _MAP_UNALIGNED 0x0800 |
| |
| /* These are linux-specific */ |
| #define MAP_GROWSDOWN 0x01000 /* stack-like segment */ |
| #define MAP_DENYWRITE 0x02000 /* ETXTBSY */ |
| #define MAP_EXECUTABLE 0x04000 /* mark it as an executable */ |
| #define MAP_LOCKED 0x08000 /* lock the mapping */ |
| #define MAP_NORESERVE 0x10000 /* don't check for reservations */ |
| #define MAP_POPULATE 0x20000 /* populate (prefault) pagetables */ |
| #define MAP_NONBLOCK 0x40000 /* do not block on IO */ |
| #define MAP_STACK 0x80000 /* give out an address that is best suited for process/thread stacks */ |
| #define MAP_HUGETLB 0x100000 /* create a huge page mapping */ |
| |
| #define MS_ASYNC 1 /* sync memory asynchronously */ |
| #define MS_SYNC 2 /* synchronous memory sync */ |
| #define MS_INVALIDATE 4 /* invalidate the caches */ |
| |
| #define MCL_CURRENT 8192 /* lock all currently mapped pages */ |
| #define MCL_FUTURE 16384 /* lock all additions to address space */ |
| #define MCL_ONFAULT 32768 /* lock all pages that are faulted in */ |
| |
| #define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */ |
| |
| #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_WILLNEED 3 /* will need these pages */ |
| #define MADV_SPACEAVAIL 5 /* ensure resources are available */ |
| #define MADV_DONTNEED 6 /* don't need these pages */ |
| |
| /* common/generic parameters */ |
| #define MADV_FREE 8 /* free pages only if memory pressure */ |
| #define MADV_REMOVE 9 /* remove these pages & resources */ |
| #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_UNMERGEABLE 13 /* KSM may not merge identical pages */ |
| |
| #define MADV_HUGEPAGE 14 /* Worth backing with hugepages */ |
| #define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */ |
| |
| #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 /* __ALPHA_MMAN_H__ */ |
