1 /*
   2  * Copyright (c) 2003, 2010, 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
  21  * questions.
  22  *
  23  */
  24 
  25 #ifndef OS_CPU_SOLARIS_SPARC_VM_PREFETCH_SOLARIS_SPARC_INLINE_HPP
  26 #define OS_CPU_SOLARIS_SPARC_VM_PREFETCH_SOLARIS_SPARC_INLINE_HPP
  27 
  28 #include "runtime/prefetch.hpp"
  29 
  30 #if defined(COMPILER2) || defined(_LP64)
  31 
  32 // For Sun Studio inplementation is in solaris_sparc.il
  33 // For gcc inplementation is just below
  34 extern "C" void _Prefetch_read (void *loc, intx interval);
  35 extern "C" void _Prefetch_write(void *loc, intx interval);
  36 
  37 inline void Prefetch::read(void *loc, intx interval) {
  38   _Prefetch_read(loc, interval);
  39 }
  40 
  41 inline void Prefetch::write(void *loc, intx interval) {
  42   _Prefetch_write(loc, interval);
  43 }
  44 
  45 #ifdef _GNU_SOURCE
  46 extern "C" {
  47   inline void _Prefetch_read (void *loc, intx interval) {
  48     __asm__ volatile
  49       ("prefetch [%0+%1], 0" : : "r" (loc), "r" (interval) : "memory" );
  50   }
  51   inline void _Prefetch_write(void *loc, intx interval) {
  52     __asm__ volatile
  53       ("prefetch [%0+%1], 2" : : "r" (loc), "r" (interval) : "memory" );
  54   }
  55 }
  56 #endif // _GNU_SOURCE
  57 
  58 #endif // defined(COMPILER2) || defined(_LP64)
  59 
  60 #endif // OS_CPU_SOLARIS_SPARC_VM_PREFETCH_SOLARIS_SPARC_INLINE_HPP