icache_sparc.cpp revision 1879:f95d63e2154a 
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 "assembler_sparc.inline.hpp"
27#include "runtime/icache.hpp"
28
29#define __ _masm->
30
31void 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 __
51