/*
 * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 */

#ifndef OS_CPU_LINUX_ARM_VM_PREFETCH_LINUX_ARM_INLINE_HPP
#define OS_CPU_LINUX_ARM_VM_PREFETCH_LINUX_ARM_INLINE_HPP

#include "runtime/prefetch.hpp"

inline void Prefetch::read (void *loc, intx interval) {
#ifdef AARCH64
  __asm__ volatile ("prfm PLDL1KEEP, [%0]" : : "r" (loc));
#else
#if defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_5TE__)
  __asm__ volatile ("pld [%0]" : : "r" (loc));
#endif
#endif // AARCH64
}

inline void Prefetch::write(void *loc, intx interval) {
#ifdef AARCH64
  __asm__ volatile ("prfm PSTL1KEEP, [%0]" : : "r" (loc));
#else
  // Not available on 32-bit ARM (prior to ARMv7 with MP extensions)
#endif // AARCH64
}

#endif // OS_CPU_LINUX_ARM_VM_PREFETCH_LINUX_ARM_INLINE_HPP