6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
  27 #define OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP
  28 
  29 #include "runtime/orderAccess.hpp"
  30 
  31 #ifndef PPC64
  32 #error "OrderAccess currently only implemented for PPC64"
  33 #endif
  34 
  35 // Compiler version last used for testing: gcc 4.1.2
  36 // Please update this information when this file changes
  37 
  38 // Implementation of class OrderAccess.
  39 
  40 //
  41 // Machine barrier instructions:
  42 //
  43 // - sync            Two-way memory barrier, aka fence.
  44 // - lwsync          orders  Store|Store,
  45 //                            Load|Store,
  46 //                            Load|Load,
  47 //                   but not Store|Load

  77 inline void   OrderAccess::storeload()  { inlasm_sync();   }
  78 
  79 inline void   OrderAccess::acquire()    { inlasm_lwsync(); }
  80 inline void   OrderAccess::release()    { inlasm_lwsync(); }
  81 inline void   OrderAccess::fence()      { inlasm_sync();   }
  82 
  83 
  84 template<size_t byte_size>
  85 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
  86 {
  87   template <typename T>
  88   T operator()(const volatile T* p) const { register T t = Atomic::load(p); inlasm_acquire_reg(t); return t; }
  89 };
  90 
  91 #undef inlasm_sync
  92 #undef inlasm_lwsync
  93 #undef inlasm_eieio
  94 #undef inlasm_isync
  95 #undef inlasm_acquire_reg
  96 
  97 #endif // OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_INLINE_HPP

   6  * This code is free software; you can redistribute it and/or modify it
   7  * under the terms of the GNU General Public License version 2 only, as
   8  * published by the Free Software Foundation.
   9  *
  10  * This code is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  13  * version 2 for more details (a copy is included in the LICENSE file that
  14  * accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License version
  17  * 2 along with this work; if not, write to the Free Software Foundation,
  18  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  21  * or visit www.oracle.com if you need additional information or have any
  22  * questions.
  23  *
  24  */
  25 
  26 #ifndef OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_HPP
  27 #define OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_HPP
  28 
  29 #include "runtime/orderAccess.hpp"
  30 
  31 #ifndef PPC64
  32 #error "OrderAccess currently only implemented for PPC64"
  33 #endif
  34 
  35 // Compiler version last used for testing: gcc 4.1.2
  36 // Please update this information when this file changes
  37 
  38 // Implementation of class OrderAccess.
  39 
  40 //
  41 // Machine barrier instructions:
  42 //
  43 // - sync            Two-way memory barrier, aka fence.
  44 // - lwsync          orders  Store|Store,
  45 //                            Load|Store,
  46 //                            Load|Load,
  47 //                   but not Store|Load

  77 inline void   OrderAccess::storeload()  { inlasm_sync();   }
  78 
  79 inline void   OrderAccess::acquire()    { inlasm_lwsync(); }
  80 inline void   OrderAccess::release()    { inlasm_lwsync(); }
  81 inline void   OrderAccess::fence()      { inlasm_sync();   }
  82 
  83 
  84 template<size_t byte_size>
  85 struct OrderAccess::PlatformOrderedLoad<byte_size, X_ACQUIRE>
  86 {
  87   template <typename T>
  88   T operator()(const volatile T* p) const { register T t = Atomic::load(p); inlasm_acquire_reg(t); return t; }
  89 };
  90 
  91 #undef inlasm_sync
  92 #undef inlasm_lwsync
  93 #undef inlasm_eieio
  94 #undef inlasm_isync
  95 #undef inlasm_acquire_reg
  96 
  97 #endif // OS_CPU_LINUX_PPC_VM_ORDERACCESS_LINUX_PPC_HPP