mirror of
https://github.com/torvalds/linux.git
synced 2024-11-07 20:51:47 +00:00
96433f6ee4
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com> Acked-by: Michael Cree <mcree@orcon.net.nz> Acked-by: Matt Turner <mattst88@gmail.com>
78 lines
3.1 KiB
C
78 lines
3.1 KiB
C
#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 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_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__ */
|