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1 /*
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2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved.
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3 * Copyright (c) 2016 SAP SE. 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 "runtime/icache.hpp"
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27
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28 // interface (see ICache::flush_icache_stub_t):
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29 // address addr (Z_R2, ignored)
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30 // int lines (Z_R3, ignored)
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31 // int magic (Z_R4)
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32 //
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33 // returns: int (Z_R2)
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34 //
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35 // Note: z/Architecture doesn't need explicit flushing, so this is implemented as a nop.
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36
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37 // Call c function (which just does nothing).
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38 int z_flush_icache(address start, int lines, int magic) { return magic; }
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39
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40 void ICacheStubGenerator::generate_icache_flush(ICache::flush_icache_stub_t* flush_icache_stub) {
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41 *flush_icache_stub = (ICache::flush_icache_stub_t)z_flush_icache;
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42
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43 // First call to flush itself.
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44 ICache::invalidate_range((address)(*flush_icache_stub), 0);
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45 };
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46
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