1 /*
   2  * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * Copyright (c) 2014, Red Hat Inc. All rights reserved.
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   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_AARCH64_PREFETCH_LINUX_AARCH64_INLINE_HPP
  27 #define OS_CPU_LINUX_AARCH64_PREFETCH_LINUX_AARCH64_INLINE_HPP
  28 
  29 #include "runtime/prefetch.hpp"
  30 
  31 
  32 inline void Prefetch::read (void *loc, intx interval) {
  33 #ifndef BUILTIN_SIM
  34   if (interval >= 0)
  35     asm("prfm PLDL1KEEP, [%0, %1]" : : "r"(loc), "r"(interval));
  36 #endif
  37 }
  38 
  39 inline void Prefetch::write(void *loc, intx interval) {
  40 #ifndef BUILTIN_SIM
  41   if (interval >= 0)
  42     asm("prfm PSTL1KEEP, [%0, %1]" : : "r"(loc), "r"(interval));
  43 #endif
  44 }
  45 
  46 #endif // OS_CPU_LINUX_AARCH64_PREFETCH_LINUX_AARCH64_INLINE_HPP