Mercurial > hg > truffle
view src/os_cpu/linux_zero/vm/orderAccess_linux_zero.inline.hpp @ 20119:1b9841bb304d
fixed pylint issues
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 01 Apr 2015 16:11:22 +0200 |
parents | f95d63e2154a |
children |
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/* * Copyright (c) 2003, 2010, 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" #include "vm_version_zero.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 READ_MEM_BARRIER __kernel_dmb() #define WRITE_MEM_BARRIER __kernel_dmb() #else // ARM #define FULL_MEM_BARRIER __sync_synchronize() #ifdef PPC #define READ_MEM_BARRIER __asm __volatile ("isync":::"memory") #ifdef __NO_LWSYNC__ #define WRITE_MEM_BARRIER __asm __volatile ("sync":::"memory") #else #define WRITE_MEM_BARRIER __asm __volatile ("lwsync":::"memory") #endif #else // PPC #define READ_MEM_BARRIER __asm __volatile ("":::"memory") #define WRITE_MEM_BARRIER __asm __volatile ("":::"memory") #endif // PPC #endif // ARM inline void OrderAccess::loadload() { acquire(); } inline void OrderAccess::storestore() { release(); } inline void OrderAccess::loadstore() { acquire(); } inline void OrderAccess::storeload() { fence(); } inline void OrderAccess::acquire() { READ_MEM_BARRIER; } inline void OrderAccess::release() { WRITE_MEM_BARRIER; } inline void OrderAccess::fence() { FULL_MEM_BARRIER; } inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { jbyte data = *p; acquire(); return data; } inline jshort OrderAccess::load_acquire(volatile jshort* p) { jshort data = *p; acquire(); return data; } inline jint OrderAccess::load_acquire(volatile jint* p) { jint data = *p; acquire(); return data; } inline jlong OrderAccess::load_acquire(volatile jlong* p) { jlong tmp; os::atomic_copy64(p, &tmp); acquire(); return tmp; } inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { jubyte data = *p; acquire(); return data; } inline jushort OrderAccess::load_acquire(volatile jushort* p) { jushort data = *p; acquire(); return data; } inline juint OrderAccess::load_acquire(volatile juint* p) { juint data = *p; acquire(); return data; } inline julong OrderAccess::load_acquire(volatile julong* p) { julong tmp; os::atomic_copy64(p, &tmp); acquire(); return tmp; } inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { jfloat data = *p; acquire(); return data; } inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { jdouble tmp; os::atomic_copy64(p, &tmp); acquire(); return tmp; } inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { intptr_t data = *p; acquire(); return data; } inline void* OrderAccess::load_ptr_acquire(volatile void* p) { void *data = *(void* volatile *)p; acquire(); return data; } inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { void *data = *(void* const volatile *)p; acquire(); return data; } inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { release(); *p = v; } inline void OrderAccess::release_store(volatile jshort* p, jshort v) { release(); *p = v; } inline void OrderAccess::release_store(volatile jint* p, jint v) { release(); *p = v; } inline void OrderAccess::release_store(volatile jlong* p, jlong v) { release(); os::atomic_copy64(&v, p); } inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { release(); *p = v; } inline void OrderAccess::release_store(volatile jushort* p, jushort v) { release(); *p = v; } inline void OrderAccess::release_store(volatile juint* p, juint v) { release(); *p = v; } inline void OrderAccess::release_store(volatile julong* p, julong v) { release(); os::atomic_copy64(&v, p); } inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { release(); *p = v; } inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { release(); os::atomic_copy64(&v, p); } inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { release(); *p = v; } inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { release(); *(void* volatile *)p = v; } inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; fence(); } inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; fence(); } inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; fence(); } inline void OrderAccess::store_fence(jlong* p, jlong v) { os::atomic_copy64(&v, p); fence(); } inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; fence(); } inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); } inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; fence(); } inline void OrderAccess::store_fence(julong* p, julong v) { os::atomic_copy64(&v, p); fence(); } inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); } inline void OrderAccess::store_fence(jdouble* p, jdouble v) { os::atomic_copy64(&v, p); fence(); } inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); } inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); } inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { release_store(p, v); fence(); } inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { release_store_ptr(p, v); fence(); } inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { release_store_ptr(p, v); fence(); } #endif // OS_CPU_LINUX_ZERO_VM_ORDERACCESS_LINUX_ZERO_INLINE_HPP