Mercurial > hg > truffle

comparison src/cpu/ppc/vm/icache_ppc.cpp @ 14408:ec28f9c041ff

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8019972: PPC64 (part 9): platform files for interpreter only VM. Summary: With this change the HotSpot core build works on Linux/PPC64. The VM succesfully executes simple test programs. Reviewed-by: kvn
author goetz
date Fri, 02 Aug 2013 16:46:45 +0200
parents
children 67fa91961822
comparison
equal deleted inserted replaced
14407:94c202aa2646 14408:ec28f9c041ff
1 /*
2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved.
3 * Copyright 2012, 2013 SAP AG. All rights reserved.
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5 *
6 * This code is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 only, as
8 * published by the Free Software Foundation.
9 *
10 * This code is distributed in the hope that it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13 * version 2 for more details (a copy is included in the LICENSE file that
14 * accompanied this code).
15 *
16 * You should have received a copy of the GNU General Public License version
17 * 2 along with this work; if not, write to the Free Software Foundation,
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
19 *
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
21 * or visit www.oracle.com if you need additional information or have any
22 * questions.
23 *
24 */
25
26 #include "precompiled.hpp"
27 #include "assembler_ppc.inline.hpp"
28 #include "runtime/icache.hpp"
29
30 // Use inline assembler to implement icache flush.
31 int ppc64_flush_icache(address start, int lines, int magic){
32 address end = start + (unsigned int)lines*ICache::line_size;
33 assert(start <= end, "flush_icache parms");
34
35 // store modified cache lines from data cache
36 for (address a=start; a<end; a+=ICache::line_size) {
37 __asm__ __volatile__(
38 "dcbst 0, %0 \n"
39 :
40 : "r" (a)
41 : "memory");
42 }
43
44 // sync instruction
45 __asm__ __volatile__(
46 "sync \n"
47 :
48 :
49 : "memory");
50
51 // invalidate respective cache lines in instruction cache
52 for (address a=start; a<end; a+=ICache::line_size) {
53 __asm__ __volatile__(
54 "icbi 0, %0 \n"
55 :
56 : "r" (a)
57 : "memory");
58 }
59
60 // discard fetched instructions
61 __asm__ __volatile__(
62 "isync \n"
63 :
64 :
65 : "memory");
66
67 return magic;
68 }
69
70 void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) {
71 StubCodeMark mark(this, "ICache", "flush_icache_stub");
72
73 *flush_icache_stub = (ICache::flush_icache_stub_t)ppc64_flush_icache;
74
75 // First call to flush itself
76 ICache::invalidate_range((address)(*flush_icache_stub), 0);
77 }