duke@435: /*
duke@435:  * Copyright 2001-2005 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: # include "incls/_precompiled.incl"
duke@435: # include "incls/_generationSpec.cpp.incl"
duke@435: 
duke@435: Generation* GenerationSpec::init(ReservedSpace rs, int level,
duke@435:                                  GenRemSet* remset) {
duke@435:   switch (name()) {
duke@435:     case Generation::DefNew:
duke@435:       return new DefNewGeneration(rs, init_size(), level);
duke@435: 
duke@435:     case Generation::MarkSweepCompact:
duke@435:       return new TenuredGeneration(rs, init_size(), level, remset);
duke@435: 
duke@435: #ifndef SERIALGC
duke@435:     case Generation::ParNew:
duke@435:       return new ParNewGeneration(rs, init_size(), level);
duke@435: 
duke@435:     case Generation::ASParNew:
duke@435:       return new ASParNewGeneration(rs,
duke@435:                                     init_size(),
duke@435:                                     init_size() /* min size */,
duke@435:                                     level);
duke@435: 
duke@435:     case Generation::ConcurrentMarkSweep: {
duke@435:       assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
duke@435:       CardTableRS* ctrs = remset->as_CardTableRS();
duke@435:       if (ctrs == NULL) {
duke@435:         vm_exit_during_initialization("Rem set incompatibility.");
duke@435:       }
duke@435:       // Otherwise
duke@435:       // The constructor creates the CMSCollector if needed,
duke@435:       // else registers with an existing CMSCollector
duke@435: 
duke@435:       ConcurrentMarkSweepGeneration* g = NULL;
duke@435:       g = new ConcurrentMarkSweepGeneration(rs,
duke@435:                  init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
duke@435:                  (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
duke@435: 
duke@435:       g->initialize_performance_counters();
duke@435: 
duke@435:       return g;
duke@435:     }
duke@435: 
duke@435:     case Generation::ASConcurrentMarkSweep: {
duke@435:       assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
duke@435:       CardTableRS* ctrs = remset->as_CardTableRS();
duke@435:       if (ctrs == NULL) {
duke@435:         vm_exit_during_initialization("Rem set incompatibility.");
duke@435:       }
duke@435:       // Otherwise
duke@435:       // The constructor creates the CMSCollector if needed,
duke@435:       // else registers with an existing CMSCollector
duke@435: 
duke@435:       ASConcurrentMarkSweepGeneration* g = NULL;
duke@435:       g = new ASConcurrentMarkSweepGeneration(rs,
duke@435:                  init_size(), level, ctrs, UseCMSAdaptiveFreeLists,
duke@435:                  (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
duke@435: 
duke@435:       g->initialize_performance_counters();
duke@435: 
duke@435:       return g;
duke@435:     }
duke@435: #endif // SERIALGC
duke@435: 
duke@435:     default:
duke@435:       guarantee(false, "unrecognized GenerationName");
duke@435:       return NULL;
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: PermanentGenerationSpec::PermanentGenerationSpec(PermGen::Name name,
duke@435:                       size_t init_size, size_t max_size,
duke@435:                       size_t read_only_size, size_t read_write_size,
duke@435:                       size_t misc_data_size, size_t misc_code_size) {
duke@435:   _name = name;
duke@435:   _init_size = init_size;
duke@435: 
duke@435:   if (UseSharedSpaces || DumpSharedSpaces) {
duke@435:     _enable_shared_spaces = true;
duke@435:     if (UseSharedSpaces) {
duke@435:       // Override shared space sizes from those in the file.
duke@435:       FileMapInfo* mapinfo = FileMapInfo::current_info();
duke@435:       _read_only_size = mapinfo->space_capacity(CompactingPermGenGen::ro);
duke@435:       _read_write_size = mapinfo->space_capacity(CompactingPermGenGen::rw);
duke@435:       _misc_data_size = mapinfo->space_capacity(CompactingPermGenGen::md);
duke@435:       _misc_code_size = mapinfo->space_capacity(CompactingPermGenGen::mc);
duke@435:     } else {
duke@435:       _read_only_size = read_only_size;
duke@435:       _read_write_size = read_write_size;
duke@435:       _misc_data_size = misc_data_size;
duke@435:       _misc_code_size = misc_code_size;
duke@435:     }
duke@435:   } else {
duke@435:     _enable_shared_spaces = false;
duke@435:     _read_only_size = 0;
duke@435:     _read_write_size = 0;
duke@435:     _misc_data_size = 0;
duke@435:     _misc_code_size = 0;
duke@435:   }
duke@435: 
duke@435:   _max_size = max_size;
duke@435: }
duke@435: 
duke@435: 
duke@435: PermGen* PermanentGenerationSpec::init(ReservedSpace rs,
duke@435:                                        size_t init_size,
duke@435:                                        GenRemSet *remset) {
duke@435: 
duke@435:   // Break the reserved spaces into pieces for the permanent space
duke@435:   // and the shared spaces.
duke@435:   ReservedSpace perm_rs = rs.first_part(_max_size, UseSharedSpaces,
duke@435:                                         UseSharedSpaces);
duke@435:   ReservedSpace shared_rs = rs.last_part(_max_size);
duke@435: 
duke@435:   if (enable_shared_spaces()) {
duke@435:     if (!perm_rs.is_reserved() ||
duke@435:         perm_rs.base() + perm_rs.size() != shared_rs.base()) {
duke@435:       FileMapInfo* mapinfo = FileMapInfo::current_info();
duke@435:       mapinfo->fail_continue("Sharing disabled - unable to "
duke@435:                                  "reserve address space.");
duke@435:       shared_rs.release();
duke@435:       disable_sharing();
duke@435:     }
duke@435:   }
duke@435: 
duke@435:   switch (name()) {
duke@435:     case PermGen::MarkSweepCompact:
duke@435:       return new CompactingPermGen(perm_rs, shared_rs, init_size, remset, this);
duke@435: 
duke@435: #ifndef SERIALGC
duke@435:     case PermGen::MarkSweep:
duke@435:       guarantee(false, "NYI");
duke@435:       return NULL;
duke@435: 
duke@435:     case PermGen::ConcurrentMarkSweep: {
duke@435:       assert(UseConcMarkSweepGC, "UseConcMarkSweepGC should be set");
duke@435:       CardTableRS* ctrs = remset->as_CardTableRS();
duke@435:       if (ctrs == NULL) {
duke@435:         vm_exit_during_initialization("RemSet/generation incompatibility.");
duke@435:       }
duke@435:       // XXXPERM
duke@435:       return new CMSPermGen(perm_rs, init_size, ctrs,
duke@435:                    (FreeBlockDictionary::DictionaryChoice)CMSDictionaryChoice);
duke@435:     }
duke@435: #endif // SERIALGC
duke@435:     default:
duke@435:       guarantee(false, "unrecognized GenerationName");
duke@435:       return NULL;
duke@435:   }
duke@435: }
duke@435: 
duke@435: 
duke@435: // Alignment
duke@435: void PermanentGenerationSpec::align(size_t alignment) {
duke@435:   _init_size       = align_size_up(_init_size,       alignment);
duke@435:   _max_size        = align_size_up(_max_size,        alignment);
duke@435:   _read_only_size  = align_size_up(_read_only_size,  alignment);
duke@435:   _read_write_size = align_size_up(_read_write_size, alignment);
duke@435:   _misc_data_size  = align_size_up(_misc_data_size,  alignment);
duke@435:   _misc_code_size  = align_size_up(_misc_code_size,  alignment);
duke@435: 
duke@435:   assert(enable_shared_spaces() || (_read_only_size + _read_write_size == 0),
duke@435:          "Shared space when disabled?");
duke@435: }