1/*
2 * Copyright (c) 2008, 2013, 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_LINUX_ARM_VM_PREFETCH_LINUX_ARM_INLINE_HPP
26#define OS_CPU_LINUX_ARM_VM_PREFETCH_LINUX_ARM_INLINE_HPP
27
28#include "runtime/prefetch.hpp"
29
30inline void Prefetch::read (void *loc, intx interval) {
31#ifdef AARCH64
32  __asm__ volatile ("prfm PLDL1KEEP, [%0]" : : "r" (loc));
33#else
34#if defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_5TE__)
35  __asm__ volatile ("pld [%0]" : : "r" (loc));
36#endif
37#endif // AARCH64
38}
39
40inline void Prefetch::write(void *loc, intx interval) {
41#ifdef AARCH64
42  __asm__ volatile ("prfm PSTL1KEEP, [%0]" : : "r" (loc));
43#else
44  // Not available on 32-bit ARM (prior to ARMv7 with MP extensions)
45#endif // AARCH64
46}
47
48#endif // OS_CPU_LINUX_ARM_VM_PREFETCH_LINUX_ARM_INLINE_HPP
49