orderAccess_aix_ppc.inline.hpp revision 5969:666e6ce3976c
1/* 2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. 3 * Copyright 2012, 2013 SAP AG. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26#ifndef OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_INLINE_HPP 27#define OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_INLINE_HPP 28 29#include "runtime/orderAccess.hpp" 30#include "vm_version_ppc.hpp" 31 32// Implementation of class OrderAccess. 33 34// 35// Machine barrier instructions: 36// 37// - ppc_sync Two-way memory barrier, aka fence. 38// - ppc_lwsync orders Store|Store, 39// Load|Store, 40// Load|Load, 41// but not Store|Load 42// - ppc_eieio orders Store|Store 43// - ppc_isync Invalidates speculatively executed instructions, 44// but isync may complete before storage accesses 45// associated with instructions preceding isync have 46// been performed. 47// 48// Semantic barrier instructions: 49// (as defined in orderAccess.hpp) 50// 51// - ppc_release orders Store|Store, (maps to ppc_lwsync) 52// Load|Store 53// - ppc_acquire orders Load|Store, (maps to ppc_lwsync) 54// Load|Load 55// - ppc_fence orders Store|Store, (maps to ppc_sync) 56// Load|Store, 57// Load|Load, 58// Store|Load 59// 60 61#define inlasm_ppc_sync() __asm__ __volatile__ ("sync" : : : "memory"); 62#define inlasm_ppc_lwsync() __asm__ __volatile__ ("lwsync" : : : "memory"); 63#define inlasm_ppc_eieio() __asm__ __volatile__ ("eieio" : : : "memory"); 64#define inlasm_ppc_isync() __asm__ __volatile__ ("isync" : : : "memory"); 65#define inlasm_ppc_release() inlasm_ppc_lwsync(); 66#define inlasm_ppc_acquire() inlasm_ppc_lwsync(); 67// Use twi-isync for load_acquire (faster than lwsync). 68// ATTENTION: seems like xlC 10.1 has problems with this inline assembler macro (VerifyMethodHandles found "bad vminfo in AMH.conv"): 69// #define inlasm_ppc_acquire_reg(X) __asm__ __volatile__ ("twi 0,%0,0\n isync\n" : : "r" (X) : "memory"); 70#define inlasm_ppc_acquire_reg(X) inlasm_ppc_lwsync(); 71#define inlasm_ppc_fence() inlasm_ppc_sync(); 72 73inline void OrderAccess::loadload() { inlasm_ppc_lwsync(); } 74inline void OrderAccess::storestore() { inlasm_ppc_lwsync(); } 75inline void OrderAccess::loadstore() { inlasm_ppc_lwsync(); } 76inline void OrderAccess::storeload() { inlasm_ppc_fence(); } 77 78inline void OrderAccess::acquire() { inlasm_ppc_acquire(); } 79inline void OrderAccess::release() { inlasm_ppc_release(); } 80inline void OrderAccess::fence() { inlasm_ppc_fence(); } 81 82inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { register jbyte t = *p; inlasm_ppc_acquire_reg(t); return t; } 83inline jshort OrderAccess::load_acquire(volatile jshort* p) { register jshort t = *p; inlasm_ppc_acquire_reg(t); return t; } 84inline jint OrderAccess::load_acquire(volatile jint* p) { register jint t = *p; inlasm_ppc_acquire_reg(t); return t; } 85inline jlong OrderAccess::load_acquire(volatile jlong* p) { register jlong t = *p; inlasm_ppc_acquire_reg(t); return t; } 86inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { register jubyte t = *p; inlasm_ppc_acquire_reg(t); return t; } 87inline jushort OrderAccess::load_acquire(volatile jushort* p) { register jushort t = *p; inlasm_ppc_acquire_reg(t); return t; } 88inline juint OrderAccess::load_acquire(volatile juint* p) { register juint t = *p; inlasm_ppc_acquire_reg(t); return t; } 89inline julong OrderAccess::load_acquire(volatile julong* p) { return (julong)load_acquire((volatile jlong*)p); } 90inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { register jfloat t = *p; inlasm_ppc_acquire(); return t; } 91inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { register jdouble t = *p; inlasm_ppc_acquire(); return t; } 92 93inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return (intptr_t)load_acquire((volatile jlong*)p); } 94inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return (void*) load_acquire((volatile jlong*)p); } 95inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return (void*) load_acquire((volatile jlong*)p); } 96 97inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { inlasm_ppc_release(); *p = v; } 98inline void OrderAccess::release_store(volatile jshort* p, jshort v) { inlasm_ppc_release(); *p = v; } 99inline void OrderAccess::release_store(volatile jint* p, jint v) { inlasm_ppc_release(); *p = v; } 100inline void OrderAccess::release_store(volatile jlong* p, jlong v) { inlasm_ppc_release(); *p = v; } 101inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { inlasm_ppc_release(); *p = v; } 102inline void OrderAccess::release_store(volatile jushort* p, jushort v) { inlasm_ppc_release(); *p = v; } 103inline void OrderAccess::release_store(volatile juint* p, juint v) { inlasm_ppc_release(); *p = v; } 104inline void OrderAccess::release_store(volatile julong* p, julong v) { inlasm_ppc_release(); *p = v; } 105inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { inlasm_ppc_release(); *p = v; } 106inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { inlasm_ppc_release(); *p = v; } 107 108inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { inlasm_ppc_release(); *p = v; } 109inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { inlasm_ppc_release(); *(void* volatile *)p = v; } 110 111inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; inlasm_ppc_fence(); } 112inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; inlasm_ppc_fence(); } 113inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; inlasm_ppc_fence(); } 114inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; inlasm_ppc_fence(); } 115inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; inlasm_ppc_fence(); } 116inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; inlasm_ppc_fence(); } 117inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; inlasm_ppc_fence(); } 118inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; inlasm_ppc_fence(); } 119inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; inlasm_ppc_fence(); } 120inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; inlasm_ppc_fence(); } 121 122inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; inlasm_ppc_fence(); } 123inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; inlasm_ppc_fence(); } 124 125inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 126inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 127inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 128inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 129inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 130inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 131inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 132inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 133inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 134inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 135 136inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { inlasm_ppc_release(); *p = v; inlasm_ppc_fence(); } 137inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { inlasm_ppc_release(); *(void* volatile *)p = v; inlasm_ppc_fence(); } 138 139#undef inlasm_ppc_sync 140#undef inlasm_ppc_lwsync 141#undef inlasm_ppc_eieio 142#undef inlasm_ppc_isync 143#undef inlasm_ppc_release 144#undef inlasm_ppc_acquire 145#undef inlasm_ppc_fence 146 147#endif // OS_CPU_AIX_OJDKPPC_VM_ORDERACCESS_AIX_PPC_INLINE_HPP 148