1 /* 2 * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 * 23 */ 24 25 #include "precompiled.hpp" 26 #include "asm/macroAssembler.inline.hpp" 27 #include "runtime/icache.hpp" 28 29 #define __ _masm-> 30 31 void ICacheStubGenerator::generate_icache_flush( 32 ICache::flush_icache_stub_t* flush_icache_stub 33 ) { 34 StubCodeMark mark(this, "ICache", "flush_icache_stub"); 35 address start = __ pc(); 36 37 Label L; 38 __ bind(L); 39 __ flush( O0, G0 ); 40 __ deccc( O1 ); 41 __ br(Assembler::positive, false, Assembler::pn, L); 42 __ delayed()->inc( O0, 8 ); 43 __ retl(false); 44 __ delayed()->mov( O2, O0 ); // handshake with caller to make sure it happened! 45 46 // Must be set here so StubCodeMark destructor can call the flush stub. 47 *flush_icache_stub = (ICache::flush_icache_stub_t)start; 48 }; 49 50 #undef __