Mercurial > hg > truffle
comparison src/os_cpu/bsd_x86/vm/prefetch_bsd_x86.inline.hpp @ 3960:f08d439fab8c
7089790: integrate bsd-port changes
Reviewed-by: kvn, twisti, jrose
Contributed-by: Kurt Miller <kurt@intricatesoftware.com>, Greg Lewis <glewis@eyesbeyond.com>, Jung-uk Kim <jkim@freebsd.org>, Christos Zoulas <christos@zoulas.com>, Landon Fuller <landonf@plausible.coop>, The FreeBSD Foundation <board@freebsdfoundation.org>, Michael Franz <mvfranz@gmail.com>, Roger Hoover <rhoover@apple.com>, Alexander Strange <astrange@apple.com>
author | never |
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date | Sun, 25 Sep 2011 16:03:29 -0700 |
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1 /* | |
2 * Copyright (c) 2003, 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 #ifndef OS_CPU_BSD_X86_VM_PREFETCH_BSD_X86_INLINE_HPP | |
26 #define OS_CPU_BSD_X86_VM_PREFETCH_BSD_X86_INLINE_HPP | |
27 | |
28 #include "runtime/prefetch.hpp" | |
29 | |
30 | |
31 inline void Prefetch::read (void *loc, intx interval) { | |
32 #ifdef AMD64 | |
33 __asm__ ("prefetcht0 (%0,%1,1)" : : "r" (loc), "r" (interval)); | |
34 #endif // AMD64 | |
35 } | |
36 | |
37 inline void Prefetch::write(void *loc, intx interval) { | |
38 #ifdef AMD64 | |
39 | |
40 // Do not use the 3dnow prefetchw instruction. It isn't supported on em64t. | |
41 // __asm__ ("prefetchw (%0,%1,1)" : : "r" (loc), "r" (interval)); | |
42 __asm__ ("prefetcht0 (%0,%1,1)" : : "r" (loc), "r" (interval)); | |
43 | |
44 #endif // AMD64 | |
45 } | |
46 | |
47 #endif // OS_CPU_BSD_X86_VM_PREFETCH_BSD_X86_INLINE_HPP |