sysdeps/unix/sysv/linux/tile/cacheflush.c

   1 /* Copyright (C) 2011-2018 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <errno.h>
  20 #include <stddef.h>
  21 #include <unistd.h>
  22
  23 /* Flush cache(s). */
  24 int
  25 _flush_cache (char *addr, const int nbytes, const int op)
  26 {
  27 #ifdef __NR_cacheflush
  28   return INLINE_SYSCALL (cacheflush, 3, addr, nbytes, op);
  29 #else
  30   __set_errno (ENOSYS);
  31   return -1;
  32 #endif
  33 }
  34 weak_alias (_flush_cache, cacheflush)