--- /dev/null 2016-08-24 15:41:39.598575000 -0400 +++ new/hotspot/src/os_cpu/linux_arm/vm/prefetch_linux_arm.inline.hpp 2016-09-27 10:04:38.560732120 -0400 @@ -0,0 +1,48 @@ +/* + * 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 + * or visit www.oracle.com if you need additional information or have any + * questions. + * + */ + +#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