include/urcu/arch/sparc64.h

   1 #ifndef _URCU_ARCH_SPARC64_H
   2 #define _URCU_ARCH_SPARC64_H
   3
   4 /*
   5  * arch_sparc64.h: trivial definitions for the Sparc64 architecture.
   6  *
   7  * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
   8  * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   9  *
  10  * This library is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU Lesser General Public
  12  * License as published by the Free Software Foundation; either
  13  * version 2.1 of the License, or (at your option) any later version.
  14  *
  15  * This library is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18  * Lesser General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU Lesser General Public
  21  * License along with this library; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  23  */
  24
  25 #include <urcu/compiler.h>
  26 #include <urcu/config.h>
  27 #include <urcu/syscall-compat.h>
  28
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 /*
  34  * On Linux, define the membarrier system call number if not yet available in
  35  * the system headers.
  36  */
  37 #if (defined(__linux__) && !defined(__NR_membarrier))
  38 #define __NR_membarrier         351
  39 #endif
  40
  41 #define CAA_CACHE_LINE_SIZE     256
  42
  43 /*
  44  * Inspired from the Linux kernel. Workaround Spitfire bug #51.
  45  */
  46 #define membar_safe(type)                       \
  47 __asm__ __volatile__("ba,pt %%xcc, 1f\n\t"      \
  48                      "membar " type "\n"        \
  49                      "1:\n"                     \
  50                      : : : "memory")
  51
  52 #define cmm_mb()        membar_safe("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
  53 #define cmm_rmb()       membar_safe("#LoadLoad")
  54 #define cmm_wmb()       membar_safe("#StoreStore")
  55
  56 #ifdef __cplusplus
  57 }
  58 #endif
  59
  60 #include <urcu/arch/generic.h>
  61
  62 #endif /* _URCU_ARCH_SPARC64_H */