src/hotspot/cpu/aarch64/icache_aarch64.hpp
author eosterlund
Wed, 09 Oct 2019 12:30:06 +0000
changeset 58516 d376d86b0a01
parent 53244 9807daeb47c4
permissions -rw-r--r--
8230565: ZGC: Redesign C2 load barrier to expand on the MachNode level Reviewed-by: pliden, stefank, neliasso Contributed-by: erik.osterlund@oracle.com, per.liden@oracle.com, stefan.karlsson@oracle.com, nils.eliasson@oracle.com
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/*
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 * Copyright (c) 1997, 2019, Oracle and/or its affiliates. All rights reserved.
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 * Copyright (c) 2014, Red Hat Inc. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#ifndef CPU_AARCH64_ICACHE_AARCH64_HPP
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#define CPU_AARCH64_ICACHE_AARCH64_HPP
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// Interface for updating the instruction cache.  Whenever the VM
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// modifies code, part of the processor instruction cache potentially
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// has to be flushed.
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class ICache : public AbstractICache {
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 public:
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  static void initialize();
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  static void invalidate_word(address addr) {
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    __clear_cache((char *)addr, (char *)(addr + 3));
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  }
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  static void invalidate_range(address start, int nbytes) {
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    __clear_cache((char *)start, (char *)(start + nbytes));
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  }
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};
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#endif // CPU_AARCH64_ICACHE_AARCH64_HPP