Mercurial > hg > truffle
annotate src/cpu/ppc/vm/icache_ppc.cpp @ 20070:aa8e0e2c5751
StandardOp.NoOp: assert that the right instruction is #replaced.
author | Josef Eisl <josef.eisl@jku.at> |
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date | Mon, 30 Mar 2015 10:08:38 +0200 |
parents | 67fa91961822 |
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rev | line source |
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1 /* |
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2 * Copyright (c) 2000, 2013, Oracle and/or its affiliates. All rights reserved. |
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3 * Copyright 2012, 2013 SAP AG. All rights reserved. |
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4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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5 * |
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6 * This code is free software; you can redistribute it and/or modify it |
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7 * under the terms of the GNU General Public License version 2 only, as |
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8 * published by the Free Software Foundation. |
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9 * |
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10 * This code is distributed in the hope that it will be useful, but WITHOUT |
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11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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13 * version 2 for more details (a copy is included in the LICENSE file that |
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14 * accompanied this code). |
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15 * |
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16 * You should have received a copy of the GNU General Public License version |
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17 * 2 along with this work; if not, write to the Free Software Foundation, |
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18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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19 * |
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20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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21 * or visit www.oracle.com if you need additional information or have any |
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22 * questions. |
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23 * |
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24 */ |
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25 |
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26 #include "precompiled.hpp" |
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27 #include "assembler_ppc.inline.hpp" |
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28 #include "runtime/icache.hpp" |
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29 |
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30 // Use inline assembler to implement icache flush. |
14445 | 31 int ICache::ppc64_flush_icache(address start, int lines, int magic) { |
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32 address end = start + (unsigned int)lines*ICache::line_size; |
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33 assert(start <= end, "flush_icache parms"); |
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34 |
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35 // store modified cache lines from data cache |
14445 | 36 for (address a = start; a < end; a += ICache::line_size) { |
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37 __asm__ __volatile__( |
14445 | 38 "dcbst 0, %0 \n" |
39 : | |
40 : "r" (a) | |
41 : "memory"); | |
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42 } |
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43 |
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44 // sync instruction |
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45 __asm__ __volatile__( |
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46 "sync \n" |
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47 : |
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48 : |
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49 : "memory"); |
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50 |
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51 // invalidate respective cache lines in instruction cache |
14445 | 52 for (address a = start; a < end; a += ICache::line_size) { |
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53 __asm__ __volatile__( |
14445 | 54 "icbi 0, %0 \n" |
55 : | |
56 : "r" (a) | |
57 : "memory"); | |
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58 } |
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59 |
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60 // discard fetched instructions |
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61 __asm__ __volatile__( |
14445 | 62 "isync \n" |
63 : | |
64 : | |
65 : "memory"); | |
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66 |
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67 return magic; |
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68 } |
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69 |
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70 void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) { |
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71 StubCodeMark mark(this, "ICache", "flush_icache_stub"); |
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72 |
14445 | 73 *flush_icache_stub = (ICache::flush_icache_stub_t)ICache::ppc64_flush_icache; |
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74 |
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75 // First call to flush itself |
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76 ICache::invalidate_range((address)(*flush_icache_stub), 0); |
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77 } |