1 /*
   2  * Copyright (c) 1997, 2009, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   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.
   8  *
   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
  21  * questions.
  22  *
  23  */
  24 
  25 # include "incls/_precompiled.incl"
  26 # include "incls/_vm_version_sparc.cpp.incl"










  27 
  28 int VM_Version::_features = VM_Version::unknown_m;
  29 const char* VM_Version::_features_str = "";
  30 
  31 bool VM_Version::is_niagara1_plus() {
  32   // This is a placeholder until the real test is determined.
  33   return is_niagara1() &&
  34     (os::processor_count() > maximum_niagara1_processor_count());
  35 }
  36 
  37 void VM_Version::initialize() {
  38   _features = determine_features();
  39   PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes();
  40   PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes();
  41   PrefetchFieldsAhead         = prefetch_fields_ahead();
  42 
  43   // Allocation prefetch settings
  44   intx cache_line_size = L1_data_cache_line_size();
  45   if( cache_line_size > AllocatePrefetchStepSize )
  46     AllocatePrefetchStepSize = cache_line_size;

   1 /*
   2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   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.
   8  *
   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
  21  * questions.
  22  *
  23  */
  24 
  25 #include "precompiled.hpp"
  26 #include "assembler_sparc.inline.hpp"
  27 #include "memory/resourceArea.hpp"
  28 #include "runtime/java.hpp"
  29 #include "runtime/stubCodeGenerator.hpp"
  30 #include "vm_version_sparc.hpp"
  31 #ifdef TARGET_OS_FAMILY_linux
  32 # include "os_linux.inline.hpp"
  33 #endif
  34 #ifdef TARGET_OS_FAMILY_solaris
  35 # include "os_solaris.inline.hpp"
  36 #endif
  37 
  38 int VM_Version::_features = VM_Version::unknown_m;
  39 const char* VM_Version::_features_str = "";
  40 
  41 bool VM_Version::is_niagara1_plus() {
  42   // This is a placeholder until the real test is determined.
  43   return is_niagara1() &&
  44     (os::processor_count() > maximum_niagara1_processor_count());
  45 }
  46 
  47 void VM_Version::initialize() {
  48   _features = determine_features();
  49   PrefetchCopyIntervalInBytes = prefetch_copy_interval_in_bytes();
  50   PrefetchScanIntervalInBytes = prefetch_scan_interval_in_bytes();
  51   PrefetchFieldsAhead         = prefetch_fields_ahead();
  52 
  53   // Allocation prefetch settings
  54   intx cache_line_size = L1_data_cache_line_size();
  55   if( cache_line_size > AllocatePrefetchStepSize )
  56     AllocatePrefetchStepSize = cache_line_size;