Mercurial > hg > truffle
comparison src/share/vm/runtime/prefetch.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
author | stefank |
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date | Tue, 23 Nov 2010 13:22:55 -0800 |
parents | c18cbe5936b8 |
children |
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1971:e33f46fc48ed | 1972:f95d63e2154a |
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1 /* | 1 /* |
2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. | 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. | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | 4 * |
5 * This code is free software; you can redistribute it and/or modify it | 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 | 6 * under the terms of the GNU General Public License version 2 only, as |
7 * published by the Free Software Foundation. | 7 * published by the Free Software Foundation. |
20 * or visit www.oracle.com if you need additional information or have any | 20 * or visit www.oracle.com if you need additional information or have any |
21 * questions. | 21 * questions. |
22 * | 22 * |
23 */ | 23 */ |
24 | 24 |
25 #ifndef SHARE_VM_RUNTIME_PREFETCH_HPP | |
26 #define SHARE_VM_RUNTIME_PREFETCH_HPP | |
27 | |
28 #include "memory/allocation.hpp" | |
29 | |
25 // If calls to prefetch methods are in a loop, the loop should be cloned | 30 // If calls to prefetch methods are in a loop, the loop should be cloned |
26 // such that if Prefetch{Scan,Copy}Interval and/or PrefetchFieldInterval | 31 // such that if Prefetch{Scan,Copy}Interval and/or PrefetchFieldInterval |
27 // say not to do prefetching, these methods aren't called. At the very | 32 // say not to do prefetching, these methods aren't called. At the very |
28 // least, they take up a memory issue slot. They should be implemented | 33 // least, they take up a memory issue slot. They should be implemented |
29 // as inline assembly code: doing an actual call isn't worth the cost. | 34 // as inline assembly code: doing an actual call isn't worth the cost. |
40 static void read(void* loc, intx interval); | 45 static void read(void* loc, intx interval); |
41 | 46 |
42 // Prefetch anticipating write; must not fault, semantically a no-op | 47 // Prefetch anticipating write; must not fault, semantically a no-op |
43 static void write(void* loc, intx interval); | 48 static void write(void* loc, intx interval); |
44 }; | 49 }; |
50 | |
51 #endif // SHARE_VM_RUNTIME_PREFETCH_HPP |