1 /*

     2  * Copyright (c) 1999, 2016, 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_VM_GLOBALDEFINITIONS_PPC_HPP

    27 #define CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP

    28 

    29 #ifdef CC_INTERP

    30 #error "CC_INTERP is no longer supported. Removed in change 8145117."

    31 #endif

    32 

    33 // Size of PPC Instructions

    34 const int BytesPerInstWord = 4;

    35 

    36 const int StackAlignmentInBytes = 16;

    37 

    38 // Indicates whether the C calling conventions require that

    39 // 32-bit integer argument values are extended to 64 bits.

    40 const bool CCallingConventionRequiresIntsAsLongs = true;

    41 

    42 #define SUPPORTS_NATIVE_CX8

    43 

    44 // The PPC CPUs are NOT multiple-copy-atomic.

    45 #define CPU_NOT_MULTIPLE_COPY_ATOMIC

    46 

    47 // The expected size in bytes of a cache line, used to pad data structures.

    48 #define DEFAULT_CACHE_LINE_SIZE 128

    49 

    50 #if defined(COMPILER2) && (defined(AIX) || defined(LINUX))

    51 // Include Transactional Memory lock eliding optimization

    52 #define INCLUDE_RTM_OPT 1

    53 #endif

    54 

    55 #define SUPPORT_RESERVED_STACK_AREA

    56 

    57 #endif // CPU_PPC_VM_GLOBALDEFINITIONS_PPC_HPP