arch/tile/include/asm/unistd.h

   1 /*
   2  * Copyright 2010 Tilera Corporation. All Rights Reserved.
   3  *
   4  *   This program is free software; you can redistribute it and/or
   5  *   modify it under the terms of the GNU General Public License
   6  *   as published by the Free Software Foundation, version 2.
   7  *
   8  *   This program is distributed in the hope that it will be useful, but
   9  *   WITHOUT ANY WARRANTY; without even the implied warranty of
  10  *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
  11  *   NON INFRINGEMENT.  See the GNU General Public License for
  12  *   more details.
  13  */
  14
  15 #if !defined(_ASM_TILE_UNISTD_H) || defined(__SYSCALL)
  16 #define _ASM_TILE_UNISTD_H
  17
  18 #if !defined(__LP64__) || defined(__SYSCALL_COMPAT)
  19 /* Use the flavor of this syscall that matches the 32-bit API better. */
  20 #define __ARCH_WANT_SYNC_FILE_RANGE2
  21 #endif
  22
  23 /* Use the standard ABI for syscalls. */
  24 #include <asm-generic/unistd.h>
  25
  26 /* Additional Tilera-specific syscalls. */
  27 #define __NR_flush_cache        (__NR_arch_specific_syscall + 1)
  28 __SYSCALL(__NR_flush_cache, sys_flush_cache)
  29
  30 #ifndef __tilegx__
  31 /* "Fast" syscalls provide atomic support for 32-bit chips. */
  32 #define __NR_FAST_cmpxchg       -1
  33 #define __NR_FAST_atomic_update -2
  34 #define __NR_FAST_cmpxchg64     -3
  35 #define __NR_cmpxchg_badaddr    (__NR_arch_specific_syscall + 0)
  36 __SYSCALL(__NR_cmpxchg_badaddr, sys_cmpxchg_badaddr)
  37 #endif
  38
  39 #ifdef __KERNEL__
  40 /* In compat mode, we use sys_llseek() for compat_sys_llseek(). */
  41 #ifdef CONFIG_COMPAT
  42 #define __ARCH_WANT_SYS_LLSEEK
  43 #endif
  44 #define __ARCH_WANT_SYS_NEWFSTATAT
  45 #endif
  46
  47 #endif /* _ASM_TILE_UNISTD_H */