1 /*
   2  * Copyright (c) 1999, 2017, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
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  23  */
  24 
  25 #ifndef OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP
  26 #define OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP
  27 
  28 #include "runtime/os.hpp"
  29 
  30 // Implementation of class atomic
  31 
  32 // This is the interface to the atomic instructions in solaris_sparc.il.
  33 
  34 extern "C" int32_t _Atomic_swap32(int32_t exchange_value, volatile int32_t* dest);
  35 extern "C" int64_t _Atomic_swap64(int64_t exchange_value, volatile int64_t* dest);
  36 
  37 extern "C" int32_t _Atomic_cas32(int32_t exchange_value, volatile int32_t* dest, int32_t compare_value);
  38 extern "C" int64_t _Atomic_cas64(int64_t exchange_value, volatile int64_t* dest, int64_t compare_value);
  39 
  40 extern "C" int32_t _Atomic_add32(int32_t add_value, volatile int32_t* dest);
  41 extern "C" int64_t _Atomic_add64(int64_t add_value, volatile int64_t* dest);
  42 
  43 
  44 template <>
  45 inline int32_t GeneralizedAtomic::specialized_add<int32_t>(int32_t add_value, volatile int32_t* dest) {
  46   return _Atomic_add32(add_value, dest);
  47 }
  48 
  49 template <>
  50 inline int64_t GeneralizedAtomic::specialized_add<int64_t>(int64_t add_value, volatile int64_t* dest) {
  51   return _Atomic_add64(add_value, dest);
  52 }
  53 
  54 template <>
  55 inline int32_t GeneralizedAtomic::specialized_xchg<int32_t>(int32_t exchange_value, volatile int32_t* dest) {
  56   return _Atomic_swap32(exchange_value, dest);
  57 }
  58 
  59 template <>
  60 inline int64_t GeneralizedAtomic::specialized_xchg<int64_t>(int64_t exchange_value, volatile int64_t* dest) {
  61   return _Atomic_swap64(exchange_value, dest);
  62 }
  63 
  64 template <>
  65 inline int32_t GeneralizedAtomic::specialized_cmpxchg<int32_t>(int32_t exchange_value, volatile int32_t* dest, int32_t compare_value, cmpxchg_memory_order order) {
  66   return _Atomic_cas32(exchange_value, dest, compare_value);
  67 }
  68 
  69 template <>
  70 inline int64_t GeneralizedAtomic::specialized_cmpxchg<int64_t>(int64_t exchange_value, volatile int64_t* dest, int64_t compare_value, cmpxchg_memory_order order) {
  71   return _Atomic_cas64(exchange_value, dest, compare_value);
  72 }
  73 
  74 #endif // OS_CPU_SOLARIS_SPARC_VM_ATOMIC_SOLARIS_SPARC_HPP