Mercurial > hg > openjdk7.svn
view hotspot/src/cpu/amd64/vm/icache_amd64.cpp @ 1:193df1943809 trunk
[svn] Load openjdk/jdk7/b13 into jdk/trunk.
author | xiomara |
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date | Fri, 25 May 2007 00:49:14 +0000 |
parents | a4ed3fb96592 |
children | 64ed597c0ad3 |
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#ifdef USE_PRAGMA_IDENT_SRC #pragma ident "@(#)icache_amd64.cpp 1.13 07/05/17 15:39:46 JVM" #endif /* * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. * 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "incls/_precompiled.incl" #include "incls/_icache_amd64.cpp.incl" #define __ _masm-> void ICacheStubGenerator::generate_icache_flush( ICache::flush_icache_stub_t* flush_icache_stub ) { StubCodeMark mark(this, "ICache", "flush_icache_stub"); address start = __ pc(); const Register addr = c_rarg0; const Register lines = c_rarg1; const Register magic = c_rarg2; Label flush_line, done; __ testl(lines, lines); __ jcc(Assembler::zero, done); // Force ordering wrt cflush. // Other fence and sync instructions won't do the job. __ mfence(); __ bind(flush_line); __ clflush(Address(addr)); __ addq(addr, ICache::line_size); __ decrementl(lines); __ jcc(Assembler::notZero, flush_line); __ mfence(); __ bind(done); __ movl(rax, magic); // Handshake with caller to make sure it happened! __ ret(0); // Must be set here so StubCodeMark destructor can call the flush stub. *flush_icache_stub = (ICache::flush_icache_stub_t)start; }; #undef __