Mercurial > hg > graal-compiler
comparison src/cpu/x86/vm/icache_x86.cpp @ 0:a61af66fc99e jdk7-b24
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author | duke |
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date | Sat, 01 Dec 2007 00:00:00 +0000 |
parents | |
children | dc7f315e41f7 |
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-1:000000000000 | 0:a61af66fc99e |
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1 /* | |
2 * Copyright 1997-2004 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
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)); | |
51 __ addq(addr, ICache::line_size); | |
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 | |
63 __ movl(rax, magic); // Handshake with caller to make sure it happened! | |
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 __ |