1 /* 2 * Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved. 3 * Copyright (c) 2012, 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_PPC_GLOBALDEFINITIONS_PPC_HPP 27 #define CPU_PPC_GLOBALDEFINITIONS_PPC_HPP 28 29 #ifdef CC_INTERP 30 #error "CC_INTERP is no longer supported. Removed in change 8145117." 31 #endif 32 33 #ifndef FILE_AND_LINE 34 #define FILE_AND_LINE __FILE__ ":" XSTR(__LINE__) 35 #endif 36 37 // Size of PPC Instructions 38 const int BytesPerInstWord = 4; 39 40 const int StackAlignmentInBytes = 16; 41 42 // Indicates whether the C calling conventions require that 43 // 32-bit integer argument values are extended to 64 bits. 44 const bool CCallingConventionRequiresIntsAsLongs = true; 45 46 #define SUPPORTS_NATIVE_CX8 47 48 // PPC64 is not specified as multi-copy-atomic 49 // So we must not #define CPU_MULTI_COPY_ATOMIC 50 51 // The expected size in bytes of a cache line, used to pad data structures. 52 #define DEFAULT_CACHE_LINE_SIZE 128 53 54 #if defined(COMPILER2) && (defined(AIX) || defined(LINUX)) 55 // Include Transactional Memory lock eliding optimization 56 #define INCLUDE_RTM_OPT 1 57 #else 58 #define INCLUDE_RTM_OPT 0 59 #endif 60 61 #define SUPPORT_RESERVED_STACK_AREA 62 63 // If UseSIGTRAP is active, we only use the poll bit and no polling page. 64 // Otherwise, we fall back to usage of the polling page in nmethods. 65 // Define the condition to use this -XX flag. 66 #define USE_POLL_BIT_ONLY UseSIGTRAP 67 68 #define COMPRESSED_CLASS_POINTERS_DEPENDS_ON_COMPRESSED_OOPS false 69 70 #endif // CPU_PPC_GLOBALDEFINITIONS_PPC_HPP 71