include/urcu/arch/sparc64.h

   1 // SPDX-FileCopyrightText: 2009 Paul E. McKenney, IBM Corporation.
   2 // SPDX-FileCopyrightText: 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   3 //
   4 // SPDX-License-Identifier: LGPL-2.1-or-later
   5
   6 #ifndef _URCU_ARCH_SPARC64_H
   7 #define _URCU_ARCH_SPARC64_H
   8
   9 /*
  10  * arch_sparc64.h: trivial definitions for the Sparc64 architecture.
  11  */
  12
  13 #include <urcu/compiler.h>
  14 #include <urcu/config.h>
  15 #include <urcu/syscall-compat.h>
  16
  17 #ifdef __cplusplus
  18 extern "C" {
  19 #endif
  20
  21 /*
  22  * On Linux, define the membarrier system call number if not yet available in
  23  * the system headers.
  24  */
  25 #if (defined(__linux__) && !defined(__NR_membarrier))
  26 #define __NR_membarrier         351
  27 #endif
  28
  29 #define CAA_CACHE_LINE_SIZE     256
  30
  31 /*
  32  * Inspired from the Linux kernel. Workaround Spitfire bug #51.
  33  */
  34 #define membar_safe(type)                       \
  35 __asm__ __volatile__("ba,pt %%xcc, 1f\n\t"      \
  36                      "membar " type "\n"        \
  37                      "1:\n"                     \
  38                      : : : "memory")
  39
  40 #define cmm_mb()        membar_safe("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
  41 #define cmm_rmb()       membar_safe("#LoadLoad")
  42 #define cmm_wmb()       membar_safe("#StoreStore")
  43
  44 #ifdef __cplusplus
  45 }
  46 #endif
  47
  48 #include <urcu/arch/generic.h>
  49
  50 #endif /* _URCU_ARCH_SPARC64_H */