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comparison src/os_cpu/solaris_sparc/vm/prefetch_solaris_sparc.inline.hpp @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2003-2007 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 #if defined(COMPILER2) || defined(_LP64)
26
27 // For Sun Studio inplementation is in solaris_sparc.il
28 // For gcc inplementation is just below
29 extern "C" void _Prefetch_read (void *loc, intx interval);
30 extern "C" void _Prefetch_write(void *loc, intx interval);
31
32 inline void Prefetch::read(void *loc, intx interval) {
33 _Prefetch_read(loc, interval);
34 }
35
36 inline void Prefetch::write(void *loc, intx interval) {
37 _Prefetch_write(loc, interval);
38 }
39
40 #ifdef _GNU_SOURCE
41 extern "C" {
42 inline void _Prefetch_read (void *loc, intx interval) {
43 __asm__ volatile
44 ("prefetch [%0+%1], 0" : : "r" (loc), "r" (interval) : "memory" );
45 }
46 inline void _Prefetch_write(void *loc, intx interval) {
47 __asm__ volatile
48 ("prefetch [%0+%1], 2" : : "r" (loc), "r" (interval) : "memory" );
49 }
50 }
51 #endif // _GNU_SOURCE
52
53 #else // defined(COMPILER2) || defined(_LP64)
54
55 inline void Prefetch::read (void *loc, intx interval) {}
56 inline void Prefetch::write(void *loc, intx interval) {}
57
58 #endif // defined(COMPILER2) || defined(_LP64)