1 /*
   2  * Copyright (c) 1999, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
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   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
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  24 
  25 #ifndef CPU_SPARC_VM_GLOBALDEFINITIONS_SPARC_HPP
  26 #define CPU_SPARC_VM_GLOBALDEFINITIONS_SPARC_HPP
  27 
  28 // Size of Sparc Instructions
  29 const int BytesPerInstWord = 4;
  30 
  31 const int StackAlignmentInBytes = (2*wordSize);
  32 
  33 #define SUPPORTS_NATIVE_CX8
  34 
  35 // The expected size in bytes of a cache line, used to pad data structures.
  36 #if defined(TIERED)
  37   #ifdef _LP64
  38     // tiered, 64-bit, large machine
  39     #define DEFAULT_CACHE_LINE_SIZE 128
  40   #else
  41     // tiered, 32-bit, medium machine
  42     #define DEFAULT_CACHE_LINE_SIZE 64
  43   #endif
  44 #elif defined(COMPILER1)
  45   // pure C1, 32-bit, small machine
  46   #define DEFAULT_CACHE_LINE_SIZE 16
  47 #elif defined(COMPILER2) || defined(SHARK)
  48   #ifdef _LP64
  49     // pure C2, 64-bit, large machine
  50     #define DEFAULT_CACHE_LINE_SIZE 128
  51   #else
  52     // pure C2, 32-bit, medium machine
  53     #define DEFAULT_CACHE_LINE_SIZE 64
  54   #endif
  55 #endif
  56 
  57 #if defined(SOLARIS)
  58 #define SUPPORT_RESERVED_STACK_AREA
  59 #endif
  60 
  61 #endif // CPU_SPARC_VM_GLOBALDEFINITIONS_SPARC_HPP