102 lines
4.0 KiB
C
102 lines
4.0 KiB
C
#ifndef _UAPI_E2K_MMAN_H_
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#define _UAPI_E2K_MMAN_H_
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/*
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* Copyright (C) 1998-2000 Hewlett-Packard Co
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* Copyright (C) 1998-2000 David Mosberger-Tang <davidm@hpl.hp.com>
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*
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* Adopted for Linux/E2K. To be extended for proper E2K mem. management.
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*/
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#define PROT_NONE 0x0 /* page can not be accessed */
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#define PROT_READ 0x1 /* page can be read */
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#define PROT_WRITE 0x2 /* page can be written */
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#define PROT_EXEC 0x4 /* page can be executed */
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#define PROT_SEM 0x8 /* page may be used for atomic ops */
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#define PROT_GROWSDOWN 0x20 /* mprotect flag: extend change */
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/* to start of growsdown vma */
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#define PROT_GROWSUP 0x40 /* mprotect flag: extend change */
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/* to end of growsup vma */
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#define PROT_CUI 0xffff00
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#define PROT_CUI_SHIFT 8
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#define PROT_CUI_MASK 0xFFFF
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#define GET_CUI_FROM_INT_PROT(prot) (((prot) >> PROT_CUI_SHIFT) & \
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PROT_CUI_MASK)
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#define PUT_CUI_TO_INT_PROT(prot, cui) ((((cui) & PROT_CUI_MASK) << \
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PROT_CUI_SHIFT) | prot)
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/* 0x01 - 0x03 are defined in linux/mman.h */
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#define MAP_TYPE 0x00000f /* Mask for type of mapping */
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#define MAP_ANONYMOUS 0x000010 /* don't use a file */
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#define MAP_FIXED 0x000100 /* Interpret addr exactly */
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#define MAP_DENYWRITE 0x000800 /* ETXTBSY */
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#define MAP_GROWSDOWN 0x001000 /* stack-like segment */
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#define MAP_GROWSUP 0x002000 /* register stack-like segment */
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#define MAP_EXECUTABLE 0x004000 /* mark it as an executable */
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#define MAP_LOCKED 0x008000 /* pages are locked */
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#define MAP_NORESERVE 0x010000 /* don't check for reservations */
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#define MAP_POPULATE 0x020000 /* populate (prefault) pagetables */
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#define MAP_NONBLOCK 0x040000 /* do not block on IO */
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#define MAP_FIRST32 0x080000 /* in protected mode map in */
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/* first 2 ** 32 area */
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#define MAP_WRITECOMBINED 0x100000 /* Write combine */
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#define MAP_HUGETLB 0x200000 /* create a huge page mapping */
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#define MAP_FIXED_NOREPLACE 0x400000 /* MAP_FIXED which doesn't unmap */
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/* underlying mapping */
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#define MAP_STACK MAP_GROWSDOWN
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#define MLOCK_ONFAULT 0x01 /* Lock pages in range after they are faulted in, do not prefault */
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#define MS_ASYNC 1 /* sync memory asynchronously */
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#define MS_INVALIDATE 2 /* invalidate the caches */
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#define MS_SYNC 4 /* synchronous memory sync */
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#define MCL_CURRENT 1 /* lock all current mappings */
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#define MCL_FUTURE 2 /* lock all future mappings */
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#define MCL_ONFAULT 4 /* lock all pages that are faulted in */
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#define MADV_NORMAL 0 /* no further special treatment */
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#define MADV_RANDOM 1 /* expect random page references */
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#define MADV_SEQUENTIAL 2 /* expect sequential page references */
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#define MADV_WILLNEED 3 /* will need these pages */
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#define MADV_DONTNEED 4 /* don't need these pages */
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/* common parameters: try to keep these consistent across architectures */
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#define MADV_FREE 8 /* free pages only if memory pressure */
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#define MADV_REMOVE 9 /* remove these pages & resources */
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#define MADV_DONTFORK 10 /* don't inherit across fork */
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#define MADV_DOFORK 11 /* do inherit across fork */
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#define MADV_HWPOISON 100 /* poison a page for testing */
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#define MADV_SOFT_OFFLINE 101 /* soft offline page for testing */
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#define MADV_MERGEABLE 12 /* KSM may merge identical pages */
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#define MADV_UNMERGEABLE 13 /* KSM may not merge identical pages */
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#define MADV_HUGEPAGE 14 /* Worth backing with hugepages */
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#define MADV_NOHUGEPAGE 15 /* Not worth backing with hugepages */
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#define MADV_DONTDUMP 16 /* Explicity exclude from the core dump,
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overrides the coredump filter bits */
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#define MADV_DODUMP 17 /* Clear the MADV_NODUMP flag */
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#define MADV_WIPEONFORK 18 /* Zero memory on fork, child only */
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#define MADV_KEEPONFORK 19 /* Undo MADV_WIPEONFORK */
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#define MADV_COLD 20 /* deactivate these pages */
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#define MADV_PAGEOUT 21 /* reclaim these pages */
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/* compatibility flags */
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#define MAP_ANON MAP_ANONYMOUS
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#define MAP_FILE 0
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#define PKEY_DISABLE_ACCESS 0x1
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#define PKEY_DISABLE_WRITE 0x2
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#define PKEY_ACCESS_MASK (PKEY_DISABLE_ACCESS |\
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PKEY_DISABLE_WRITE)
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#endif /* _UAPI_E2K_MMAN_H_ */
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