Mercurial > hg > truffle
annotate src/cpu/x86/vm/icache_x86.cpp @ 1627:c5f1ea9e15e8
Merge
author | coleenp |
---|---|
date | Mon, 28 Jun 2010 12:03:05 -0400 |
parents | c18cbe5936b8 |
children | f95d63e2154a |
rev | line source |
---|---|
0 | 1 /* |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
2 * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
337
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 #include "incls/_precompiled.incl" | |
26 #include "incls/_icache_x86.cpp.incl" | |
27 | |
28 #define __ _masm-> | |
29 | |
30 void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) { | |
31 StubCodeMark mark(this, "ICache", "flush_icache_stub"); | |
32 | |
33 address start = __ pc(); | |
34 #ifdef AMD64 | |
35 | |
36 const Register addr = c_rarg0; | |
37 const Register lines = c_rarg1; | |
38 const Register magic = c_rarg2; | |
39 | |
40 Label flush_line, done; | |
41 | |
42 __ testl(lines, lines); | |
43 __ jcc(Assembler::zero, done); | |
44 | |
45 // Force ordering wrt cflush. | |
46 // Other fence and sync instructions won't do the job. | |
47 __ mfence(); | |
48 | |
49 __ bind(flush_line); | |
50 __ clflush(Address(addr, 0)); | |
304 | 51 __ addptr(addr, ICache::line_size); |
0 | 52 __ decrementl(lines); |
53 __ jcc(Assembler::notZero, flush_line); | |
54 | |
55 __ mfence(); | |
56 | |
57 __ bind(done); | |
58 | |
59 #else | |
60 const Address magic(rsp, 3*wordSize); | |
61 __ lock(); __ addl(Address(rsp, 0), 0); | |
62 #endif // AMD64 | |
304 | 63 __ movptr(rax, magic); // Handshake with caller to make sure it happened! |
0 | 64 __ ret(0); |
65 | |
66 // Must be set here so StubCodeMark destructor can call the flush stub. | |
67 *flush_icache_stub = (ICache::flush_icache_stub_t)start; | |
68 } | |
69 | |
70 #undef __ |