linux-headers/asm-powerpc/mman.h

   1 /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
   2 /*
   3  * This program is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU General Public License
   5  * as published by the Free Software Foundation; either version
   6  * 2 of the License, or (at your option) any later version.
   7  */
   8 #ifndef _ASM_POWERPC_MMAN_H
   9 #define _ASM_POWERPC_MMAN_H
  10
  11 #include <asm-generic/mman-common.h>
  12
  13
  14 #define PROT_SAO        0x10            /* Strong Access Ordering */
  15
  16 #define MAP_RENAME      MAP_ANONYMOUS   /* In SunOS terminology */
  17 #define MAP_NORESERVE   0x40            /* don't reserve swap pages */
  18 #define MAP_LOCKED      0x80
  19
  20 #define MAP_GROWSDOWN   0x0100          /* stack-like segment */
  21 #define MAP_DENYWRITE   0x0800          /* ETXTBSY */
  22 #define MAP_EXECUTABLE  0x1000          /* mark it as an executable */
  23
  24 #define MCL_CURRENT     0x2000          /* lock all currently mapped pages */
  25 #define MCL_FUTURE      0x4000          /* lock all additions to address space */
  26 #define MCL_ONFAULT     0x8000          /* lock all pages that are faulted in */
  27
  28 #define MAP_POPULATE    0x8000          /* populate (prefault) pagetables */
  29 #define MAP_NONBLOCK    0x10000         /* do not block on IO */
  30 #define MAP_STACK       0x20000         /* give out an address that is best suited for process/thread stacks */
  31 #define MAP_HUGETLB     0x40000         /* create a huge page mapping */
  32
  33 /* Override any generic PKEY permission defines */
  34 #define PKEY_DISABLE_EXECUTE   0x4
  35 #undef PKEY_ACCESS_MASK
  36 #define PKEY_ACCESS_MASK       (PKEY_DISABLE_ACCESS |\
  37                                 PKEY_DISABLE_WRITE  |\
  38                                 PKEY_DISABLE_EXECUTE)
  39 #endif /* _ASM_POWERPC_MMAN_H */