1 /*
2 * Copyright (c) 2008, 2016, 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 #include "precompiled.hpp"
26 #include "asm/macroAssembler.hpp"
27 #include "assembler_arm.inline.hpp"
28 #include "runtime/icache.hpp"
29
30 #define __ _masm->
31
32
icache_flush(address addr,int lines,int magic)33 static int icache_flush(address addr, int lines, int magic) {
34 __builtin___clear_cache(addr, addr + (lines << ICache::log2_line_size));
35 return magic;
36 }
37
38
generate_icache_flush(ICache::flush_icache_stub_t * flush_icache_stub)39 void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) {
40 address start = (address)icache_flush;
41
42 *flush_icache_stub = (ICache::flush_icache_stub_t)start;
43
44 // ICache::invalidate_range() contains explicit condition that the first
45 // call is invoked on the generated icache flush stub code range.
46 ICache::invalidate_range(start, 0);
47
48 {
49 // dummy code mark to make the shared code happy
50 // (fields that would need to be modified to emulate the correct
51 // mark are not accessible)
52 StubCodeMark mark(this, "ICache", "fake_stub_for_inlined_icache_flush");
53 __ ret();
54 }
55 }
56
57 #undef __
58