arch/microblaze/kernel/sys_microblaze.c

   1 /*
   2  * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
   3  * Copyright (C) 2007-2009 PetaLogix
   4  * Copyright (C) 2007 John Williams <john.williams@petalogix.com>
   5  *
   6  * Copyright (C) 2006 Atmark Techno, Inc.
   7  *      Yasushi SHOJI <yashi@atmark-techno.com>
   8  *      Tetsuya OHKAWA <tetsuya@atmark-techno.com>
   9  *
  10  * This file is subject to the terms and conditions of the GNU General Public
  11  * License. See the file "COPYING" in the main directory of this archive
  12  * for more details.
  13  */
  14
  15 #include <linux/errno.h>
  16 #include <linux/export.h>
  17 #include <linux/mm.h>
  18 #include <linux/smp.h>
  19 #include <linux/syscalls.h>
  20 #include <linux/sem.h>
  21 #include <linux/msg.h>
  22 #include <linux/shm.h>
  23 #include <linux/stat.h>
  24 #include <linux/mman.h>
  25 #include <linux/sys.h>
  26 #include <linux/ipc.h>
  27 #include <linux/file.h>
  28 #include <linux/err.h>
  29 #include <linux/fs.h>
  30 #include <linux/semaphore.h>
  31 #include <linux/uaccess.h>
  32 #include <linux/unistd.h>
  33 #include <linux/slab.h>
  34 #include <asm/syscalls.h>
  35
  36 SYSCALL_DEFINE6(mmap, unsigned long, addr, unsigned long, len,
  37                 unsigned long, prot, unsigned long, flags, unsigned long, fd,
  38                 off_t, pgoff)
  39 {
  40         if (pgoff & ~PAGE_MASK)
  41                 return -EINVAL;
  42
  43         return ksys_mmap_pgoff(addr, len, prot, flags, fd, pgoff >> PAGE_SHIFT);
  44 }
  45
  46 SYSCALL_DEFINE6(mmap2, unsigned long, addr, unsigned long, len,
  47                 unsigned long, prot, unsigned long, flags, unsigned long, fd,
  48                 unsigned long, pgoff)
  49 {
  50         if (pgoff & (~PAGE_MASK >> 12))
  51                 return -EINVAL;
  52
  53         return ksys_mmap_pgoff(addr, len, prot, flags, fd,
  54                                pgoff >> (PAGE_SHIFT - 12));
  55 }