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Diffstat (limited to 'src/mem/ruby/system/DirectoryMemory.cc')
| -rw-r--r-- | src/mem/ruby/system/DirectoryMemory.cc | 212 |
1 files changed, 0 insertions, 212 deletions
diff --git a/src/mem/ruby/system/DirectoryMemory.cc b/src/mem/ruby/system/DirectoryMemory.cc deleted file mode 100644 index cb1bf6f90..000000000 --- a/src/mem/ruby/system/DirectoryMemory.cc +++ /dev/null @@ -1,212 +0,0 @@ -/* - * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer; - * redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution; - * neither the name of the copyright holders nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "base/intmath.hh" -#include "debug/RubyCache.hh" -#include "debug/RubyStats.hh" -#include "mem/ruby/slicc_interface/RubySlicc_Util.hh" -#include "mem/ruby/system/DirectoryMemory.hh" -#include "mem/ruby/system/System.hh" - -using namespace std; - -int DirectoryMemory::m_num_directories = 0; -int DirectoryMemory::m_num_directories_bits = 0; -uint64_t DirectoryMemory::m_total_size_bytes = 0; -int DirectoryMemory::m_numa_high_bit = 0; - -DirectoryMemory::DirectoryMemory(const Params *p) - : SimObject(p) -{ - m_version = p->version; - m_size_bytes = p->size; - m_size_bits = floorLog2(m_size_bytes); - m_num_entries = 0; - m_use_map = p->use_map; - m_map_levels = p->map_levels; - m_numa_high_bit = p->numa_high_bit; -} - -void -DirectoryMemory::init() -{ - m_num_entries = m_size_bytes / RubySystem::getBlockSizeBytes(); - - if (m_use_map) { - m_sparseMemory = new SparseMemory(m_map_levels); - g_system_ptr->registerSparseMemory(m_sparseMemory); - } else { - m_entries = new AbstractEntry*[m_num_entries]; - for (int i = 0; i < m_num_entries; i++) - m_entries[i] = NULL; - m_ram = g_system_ptr->getMemoryVector(); - } - - m_num_directories++; - m_num_directories_bits = ceilLog2(m_num_directories); - m_total_size_bytes += m_size_bytes; - - if (m_numa_high_bit == 0) { - m_numa_high_bit = RubySystem::getMemorySizeBits() - 1; - } - assert(m_numa_high_bit != 0); -} - -DirectoryMemory::~DirectoryMemory() -{ - // free up all the directory entries - if (m_entries != NULL) { - for (uint64 i = 0; i < m_num_entries; i++) { - if (m_entries[i] != NULL) { - delete m_entries[i]; - } - } - delete [] m_entries; - } else if (m_use_map) { - delete m_sparseMemory; - } -} - -uint64 -DirectoryMemory::mapAddressToDirectoryVersion(PhysAddress address) -{ - if (m_num_directories_bits == 0) - return 0; - - uint64 ret = address.bitSelect(m_numa_high_bit - m_num_directories_bits + 1, - m_numa_high_bit); - return ret; -} - -bool -DirectoryMemory::isPresent(PhysAddress address) -{ - bool ret = (mapAddressToDirectoryVersion(address) == m_version); - return ret; -} - -uint64 -DirectoryMemory::mapAddressToLocalIdx(PhysAddress address) -{ - uint64 ret; - if (m_num_directories_bits > 0) { - ret = address.bitRemove(m_numa_high_bit - m_num_directories_bits + 1, - m_numa_high_bit); - } else { - ret = address.getAddress(); - } - - return ret >> (RubySystem::getBlockSizeBits()); -} - -AbstractEntry* -DirectoryMemory::lookup(PhysAddress address) -{ - assert(isPresent(address)); - DPRINTF(RubyCache, "Looking up address: %s\n", address); - - if (m_use_map) { - return m_sparseMemory->lookup(address); - } else { - uint64_t idx = mapAddressToLocalIdx(address); - assert(idx < m_num_entries); - return m_entries[idx]; - } -} - -AbstractEntry* -DirectoryMemory::allocate(const PhysAddress& address, AbstractEntry* entry) -{ - assert(isPresent(address)); - uint64 idx; - DPRINTF(RubyCache, "Looking up address: %s\n", address); - - if (m_use_map) { - m_sparseMemory->add(address, entry); - entry->changePermission(AccessPermission_Read_Write); - } else { - idx = mapAddressToLocalIdx(address); - assert(idx < m_num_entries); - entry->getDataBlk().assign(m_ram->getBlockPtr(address)); - entry->changePermission(AccessPermission_Read_Only); - m_entries[idx] = entry; - } - - return entry; -} - -void -DirectoryMemory::invalidateBlock(PhysAddress address) -{ - if (m_use_map) { - assert(m_sparseMemory->exist(address)); - m_sparseMemory->remove(address); - } -#if 0 - else { - assert(isPresent(address)); - - Index index = address.memoryModuleIndex(); - - if (index < 0 || index > m_size) { - ERROR_MSG("Directory Memory Assertion: " - "accessing memory out of range."); - } - - if (m_entries[index] != NULL){ - delete m_entries[index]; - m_entries[index] = NULL; - } - } -#endif -} - -void -DirectoryMemory::print(ostream& out) const -{ -} - -void -DirectoryMemory::regStats() -{ - if (m_use_map) { - m_sparseMemory->regStats(name()); - } -} - -void -DirectoryMemory::recordRequestType(DirectoryRequestType requestType) { - DPRINTF(RubyStats, "Recorded statistic: %s\n", - DirectoryRequestType_to_string(requestType)); -} - -DirectoryMemory * -RubyDirectoryMemoryParams::create() -{ - return new DirectoryMemory(this); -} |