1 /* 2 * Copyright (c) 2016, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2016 SAP SE. All rights reserved. 4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 5 * 6 * This code is free software; you can redistribute it and/or modify it 7 * under the terms of the GNU General Public License version 2 only, as 8 * published by the Free Software Foundation. 9 * 10 * This code is distributed in the hope that it will be useful, but WITHOUT 11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 13 * version 2 for more details (a copy is included in the LICENSE file that 14 * accompanied this code). 15 * 16 * You should have received a copy of the GNU General Public License version 17 * 2 along with this work; if not, write to the Free Software Foundation, 18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 19 * 20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 21 * or visit www.oracle.com if you need additional information or have any 22 * questions. 23 * 24 */ 25 26 #ifndef CPU_S390_VM_ICACHE_S390_HPP 27 #define CPU_S390_VM_ICACHE_S390_HPP 28 29 // Interface for updating the instruction cache. Whenever the VM modifies 30 // code, part of the processor instruction cache potentially has to be flushed. 31 32 class ICache : public AbstractICache { 33 public: 34 enum { 35 stub_size = 0, // Size of the icache flush stub in bytes. 36 line_size = 2, // There is no explicit flushing on z/Architecture. 37 // This value is ignored by the flush stub (a nop !). 38 log2_line_size = 1 39 }; 40 41 // Use default implementation. 42 }; 43 44 #endif // CPU_S390_VM_ICACHE_S390_HPP