src/hotspot/os_cpu/linux_zero/orderAccess_linux_zero.inline.hpp
changeset 50429 83aec1d357d4
parent 50428 8c88df2e8a78
child 50430 6659a8f57d78
--- a/src/hotspot/os_cpu/linux_zero/orderAccess_linux_zero.inline.hpp	Wed Jun 06 15:36:29 2018 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,86 +0,0 @@
-/*
- * Copyright (c) 2003, 2017, Oracle and/or its affiliates. All rights reserved.
- * Copyright 2007, 2008, 2009 Red Hat, Inc.
- * 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_ZERO_VM_ORDERACCESS_LINUX_ZERO_INLINE_HPP
-#define OS_CPU_LINUX_ZERO_VM_ORDERACCESS_LINUX_ZERO_INLINE_HPP
-
-#include "runtime/orderAccess.hpp"
-
-#ifdef ARM
-
-/*
- * ARM Kernel helper for memory barrier.
- * Using __asm __volatile ("":::"memory") does not work reliable on ARM
- * and gcc __sync_synchronize(); implementation does not use the kernel
- * helper for all gcc versions so it is unreliable to use as well.
- */
-typedef void (__kernel_dmb_t) (void);
-#define __kernel_dmb (*(__kernel_dmb_t *) 0xffff0fa0)
-
-#define FULL_MEM_BARRIER __kernel_dmb()
-#define LIGHT_MEM_BARRIER __kernel_dmb()
-
-#else // ARM
-
-#define FULL_MEM_BARRIER __sync_synchronize()
-
-#ifdef PPC
-
-#ifdef __NO_LWSYNC__
-#define LIGHT_MEM_BARRIER __asm __volatile ("sync":::"memory")
-#else
-#define LIGHT_MEM_BARRIER __asm __volatile ("lwsync":::"memory")
-#endif
-
-#else // PPC
-
-#ifdef ALPHA
-
-#define LIGHT_MEM_BARRIER __sync_synchronize()
-
-#else // ALPHA
-
-#define LIGHT_MEM_BARRIER __asm __volatile ("":::"memory")
-
-#endif // ALPHA
-
-#endif // PPC
-
-#endif // ARM
-
-// Note: What is meant by LIGHT_MEM_BARRIER is a barrier which is sufficient
-// to provide TSO semantics, i.e. StoreStore | LoadLoad | LoadStore.
-
-inline void OrderAccess::loadload()   { LIGHT_MEM_BARRIER; }
-inline void OrderAccess::storestore() { LIGHT_MEM_BARRIER; }
-inline void OrderAccess::loadstore()  { LIGHT_MEM_BARRIER; }
-inline void OrderAccess::storeload()  { FULL_MEM_BARRIER;  }
-
-inline void OrderAccess::acquire()    { LIGHT_MEM_BARRIER; }
-inline void OrderAccess::release()    { LIGHT_MEM_BARRIER; }
-
-inline void OrderAccess::fence()      { FULL_MEM_BARRIER;  }
-
-#endif // OS_CPU_LINUX_ZERO_VM_ORDERACCESS_LINUX_ZERO_INLINE_HPP