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/*
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* Copyright 2003-2007 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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// Implementation of class OrderAccess.
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// Assume TSO.
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// In solaris_sparc.il
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extern "C" void _OrderAccess_acquire();
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extern "C" void _OrderAccess_fence();
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inline void OrderAccess::loadload() { acquire(); }
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inline void OrderAccess::storestore() { release(); }
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inline void OrderAccess::loadstore() { acquire(); }
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inline void OrderAccess::storeload() { fence(); }
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#ifdef _GNU_SOURCE
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inline void OrderAccess::acquire() {
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__asm__ volatile ("nop" : : :);
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}
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inline void OrderAccess::release() {
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jint* dummy = (jint*)&dummy;
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__asm__ volatile("stw %%g0, [%0]" : : "r" (dummy) : "memory");
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}
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inline void OrderAccess::fence() {
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__asm__ volatile ("membar #StoreLoad" : : :);
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}
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#else // _GNU_SOURCE
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inline void OrderAccess::acquire() {
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_OrderAccess_acquire();
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}
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inline void OrderAccess::release() {
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dummy = 0;
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}
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inline void OrderAccess::fence() {
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_OrderAccess_fence();
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}
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#endif // _GNU_SOURCE
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inline jbyte OrderAccess::load_acquire(volatile jbyte* p) { return *p; }
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inline jshort OrderAccess::load_acquire(volatile jshort* p) { return *p; }
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inline jint OrderAccess::load_acquire(volatile jint* p) { return *p; }
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inline jlong OrderAccess::load_acquire(volatile jlong* p) { return *p; }
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inline jubyte OrderAccess::load_acquire(volatile jubyte* p) { return *p; }
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inline jushort OrderAccess::load_acquire(volatile jushort* p) { return *p; }
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inline juint OrderAccess::load_acquire(volatile juint* p) { return *p; }
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inline julong OrderAccess::load_acquire(volatile julong* p) { return *p; }
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inline jfloat OrderAccess::load_acquire(volatile jfloat* p) { return *p; }
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inline jdouble OrderAccess::load_acquire(volatile jdouble* p) { return *p; }
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inline intptr_t OrderAccess::load_ptr_acquire(volatile intptr_t* p) { return *p; }
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inline void* OrderAccess::load_ptr_acquire(volatile void* p) { return *(void* volatile *)p; }
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inline void* OrderAccess::load_ptr_acquire(const volatile void* p) { return *(void* const volatile *)p; }
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inline void OrderAccess::release_store(volatile jbyte* p, jbyte v) { *p = v; }
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inline void OrderAccess::release_store(volatile jshort* p, jshort v) { *p = v; }
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inline void OrderAccess::release_store(volatile jint* p, jint v) { *p = v; }
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inline void OrderAccess::release_store(volatile jlong* p, jlong v) { *p = v; }
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inline void OrderAccess::release_store(volatile jubyte* p, jubyte v) { *p = v; }
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inline void OrderAccess::release_store(volatile jushort* p, jushort v) { *p = v; }
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inline void OrderAccess::release_store(volatile juint* p, juint v) { *p = v; }
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inline void OrderAccess::release_store(volatile julong* p, julong v) { *p = v; }
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inline void OrderAccess::release_store(volatile jfloat* p, jfloat v) { *p = v; }
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inline void OrderAccess::release_store(volatile jdouble* p, jdouble v) { *p = v; }
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inline void OrderAccess::release_store_ptr(volatile intptr_t* p, intptr_t v) { *p = v; }
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inline void OrderAccess::release_store_ptr(volatile void* p, void* v) { *(void* volatile *)p = v; }
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inline void OrderAccess::store_fence(jbyte* p, jbyte v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(jshort* p, jshort v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(jint* p, jint v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(jlong* p, jlong v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(jubyte* p, jubyte v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(jushort* p, jushort v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(juint* p, juint v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(julong* p, julong v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(jfloat* p, jfloat v) { *p = v; fence(); }
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inline void OrderAccess::store_fence(jdouble* p, jdouble v) { *p = v; fence(); }
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inline void OrderAccess::store_ptr_fence(intptr_t* p, intptr_t v) { *p = v; fence(); }
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inline void OrderAccess::store_ptr_fence(void** p, void* v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jbyte* p, jbyte v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jshort* p, jshort v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jint* p, jint v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jlong* p, jlong v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jubyte* p, jubyte v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jushort* p, jushort v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile juint* p, juint v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile julong* p, julong v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jfloat* p, jfloat v) { *p = v; fence(); }
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inline void OrderAccess::release_store_fence(volatile jdouble* p, jdouble v) { *p = v; fence(); }
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inline void OrderAccess::release_store_ptr_fence(volatile intptr_t* p, intptr_t v) { *p = v; fence(); }
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inline void OrderAccess::release_store_ptr_fence(volatile void* p, void* v) { *(void* volatile *)p = v; fence(); }
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