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authorNilay Vaish <nilay@cs.wisc.edu>2014-09-01 16:55:40 -0500
committerNilay Vaish <nilay@cs.wisc.edu>2014-09-01 16:55:40 -0500
commit82d136285dac52a97384961a814d5a0dda4a6482 (patch)
tree7e5a7cb87120591f8d87e73cfad4f9d5a300ee67 /src/mem/ruby/system/PersistentTable.cc
parent01f792a3675983411ff77b54cbee7ffee2a3d5d5 (diff)
downloadgem5-82d136285dac52a97384961a814d5a0dda4a6482.tar.xz
ruby: move files from ruby/system to ruby/structures
The directory ruby/system is crowded and unorganized. Hence, the files the hold actual physical structures, are being moved to the directory ruby/structures. This includes Cache Memory, Directory Memory, Memory Controller, Wire Buffer, TBE Table, Perfect Cache Memory, Timer Table, Bank Array. The directory ruby/systems has the glue code that holds these structures together. --HG-- rename : src/mem/ruby/system/MachineID.hh => src/mem/ruby/common/MachineID.hh rename : src/mem/ruby/buffers/MessageBuffer.cc => src/mem/ruby/network/MessageBuffer.cc rename : src/mem/ruby/buffers/MessageBuffer.hh => src/mem/ruby/network/MessageBuffer.hh rename : src/mem/ruby/buffers/MessageBufferNode.cc => src/mem/ruby/network/MessageBufferNode.cc rename : src/mem/ruby/buffers/MessageBufferNode.hh => src/mem/ruby/network/MessageBufferNode.hh rename : src/mem/ruby/system/AbstractReplacementPolicy.hh => src/mem/ruby/structures/AbstractReplacementPolicy.hh rename : src/mem/ruby/system/BankedArray.cc => src/mem/ruby/structures/BankedArray.cc rename : src/mem/ruby/system/BankedArray.hh => src/mem/ruby/structures/BankedArray.hh rename : src/mem/ruby/system/Cache.py => src/mem/ruby/structures/Cache.py rename : src/mem/ruby/system/CacheMemory.cc => src/mem/ruby/structures/CacheMemory.cc rename : src/mem/ruby/system/CacheMemory.hh => src/mem/ruby/structures/CacheMemory.hh rename : src/mem/ruby/system/DirectoryMemory.cc => src/mem/ruby/structures/DirectoryMemory.cc rename : src/mem/ruby/system/DirectoryMemory.hh => src/mem/ruby/structures/DirectoryMemory.hh rename : src/mem/ruby/system/DirectoryMemory.py => src/mem/ruby/structures/DirectoryMemory.py rename : src/mem/ruby/system/LRUPolicy.hh => src/mem/ruby/structures/LRUPolicy.hh rename : src/mem/ruby/system/MemoryControl.cc => src/mem/ruby/structures/MemoryControl.cc rename : src/mem/ruby/system/MemoryControl.hh => src/mem/ruby/structures/MemoryControl.hh rename : src/mem/ruby/system/MemoryControl.py => src/mem/ruby/structures/MemoryControl.py rename : src/mem/ruby/system/MemoryNode.cc => src/mem/ruby/structures/MemoryNode.cc rename : src/mem/ruby/system/MemoryNode.hh => src/mem/ruby/structures/MemoryNode.hh rename : src/mem/ruby/system/MemoryVector.hh => src/mem/ruby/structures/MemoryVector.hh rename : src/mem/ruby/system/PerfectCacheMemory.hh => src/mem/ruby/structures/PerfectCacheMemory.hh rename : src/mem/ruby/system/PersistentTable.cc => src/mem/ruby/structures/PersistentTable.cc rename : src/mem/ruby/system/PersistentTable.hh => src/mem/ruby/structures/PersistentTable.hh rename : src/mem/ruby/system/PseudoLRUPolicy.hh => src/mem/ruby/structures/PseudoLRUPolicy.hh rename : src/mem/ruby/system/RubyMemoryControl.cc => src/mem/ruby/structures/RubyMemoryControl.cc rename : src/mem/ruby/system/RubyMemoryControl.hh => src/mem/ruby/structures/RubyMemoryControl.hh rename : src/mem/ruby/system/RubyMemoryControl.py => src/mem/ruby/structures/RubyMemoryControl.py rename : src/mem/ruby/system/SparseMemory.cc => src/mem/ruby/structures/SparseMemory.cc rename : src/mem/ruby/system/SparseMemory.hh => src/mem/ruby/structures/SparseMemory.hh rename : src/mem/ruby/system/TBETable.hh => src/mem/ruby/structures/TBETable.hh rename : src/mem/ruby/system/TimerTable.cc => src/mem/ruby/structures/TimerTable.cc rename : src/mem/ruby/system/TimerTable.hh => src/mem/ruby/structures/TimerTable.hh rename : src/mem/ruby/system/WireBuffer.cc => src/mem/ruby/structures/WireBuffer.cc rename : src/mem/ruby/system/WireBuffer.hh => src/mem/ruby/structures/WireBuffer.hh rename : src/mem/ruby/system/WireBuffer.py => src/mem/ruby/structures/WireBuffer.py rename : src/mem/ruby/recorder/CacheRecorder.cc => src/mem/ruby/system/CacheRecorder.cc rename : src/mem/ruby/recorder/CacheRecorder.hh => src/mem/ruby/system/CacheRecorder.hh
Diffstat (limited to 'src/mem/ruby/system/PersistentTable.cc')
-rw-r--r--src/mem/ruby/system/PersistentTable.cc219
1 files changed, 0 insertions, 219 deletions
diff --git a/src/mem/ruby/system/PersistentTable.cc b/src/mem/ruby/system/PersistentTable.cc
deleted file mode 100644
index c60d39b8a..000000000
--- a/src/mem/ruby/system/PersistentTable.cc
+++ /dev/null
@@ -1,219 +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 "mem/ruby/system/PersistentTable.hh"
-
-using namespace std;
-
-// randomize so that handoffs are not locality-aware
-#if 0
-int persistent_randomize[] = {0, 4, 8, 12, 1, 5, 9, 13, 2, 6,
- 10, 14, 3, 7, 11, 15};
-int persistent_randomize[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
- 10, 11, 12, 13, 14, 15};
-#endif
-
-PersistentTable::PersistentTable()
-{
-}
-
-PersistentTable::~PersistentTable()
-{
-}
-
-void
-PersistentTable::persistentRequestLock(const Address& address,
- MachineID locker,
- AccessType type)
-{
-#if 0
- if (locker == m_chip_ptr->getID())
- cout << "Chip " << m_chip_ptr->getID() << ": " << llocker
- << " requesting lock for " << address << endl;
-
- MachineID locker = (MachineID) persistent_randomize[llocker];
-#endif
-
- assert(address == line_address(address));
-
- static const PersistentTableEntry dflt;
- pair<AddressMap::iterator, bool> r =
- m_map.insert(AddressMap::value_type(address, dflt));
- bool present = !r.second;
- AddressMap::iterator i = r.first;
- PersistentTableEntry &entry = i->second;
-
- if (present) {
- // Make sure we're not already in the locked set
- assert(!(entry.m_starving.isElement(locker)));
- }
-
- entry.m_starving.add(locker);
- if (type == AccessType_Write)
- entry.m_request_to_write.add(locker);
-
- if (present)
- assert(entry.m_marked.isSubset(entry.m_starving));
-}
-
-void
-PersistentTable::persistentRequestUnlock(const Address& address,
- MachineID unlocker)
-{
-#if 0
- if (unlocker == m_chip_ptr->getID())
- cout << "Chip " << m_chip_ptr->getID() << ": " << uunlocker
- << " requesting unlock for " << address << endl;
-
- MachineID unlocker = (MachineID) persistent_randomize[uunlocker];
-#endif
-
- assert(address == line_address(address));
- assert(m_map.count(address));
- PersistentTableEntry& entry = m_map[address];
-
- //
- // Make sure we're in the locked set
- //
- assert(entry.m_starving.isElement(unlocker));
- assert(entry.m_marked.isSubset(entry.m_starving));
- entry.m_starving.remove(unlocker);
- entry.m_marked.remove(unlocker);
- entry.m_request_to_write.remove(unlocker);
- assert(entry.m_marked.isSubset(entry.m_starving));
-
- // Deallocate if empty
- if (entry.m_starving.isEmpty()) {
- assert(entry.m_marked.isEmpty());
- m_map.erase(address);
- }
-}
-
-bool
-PersistentTable::okToIssueStarving(const Address& address,
- MachineID machId) const
-{
- assert(address == line_address(address));
-
- AddressMap::const_iterator i = m_map.find(address);
- if (i == m_map.end()) {
- // No entry present
- return true;
- }
-
- const PersistentTableEntry &entry = i->second;
-
- if (entry.m_starving.isElement(machId)) {
- // We can't issue another lockdown until are previous unlock
- // has occurred
- return false;
- }
-
- return entry.m_marked.isEmpty();
-}
-
-MachineID
-PersistentTable::findSmallest(const Address& address) const
-{
- assert(address == line_address(address));
- AddressMap::const_iterator i = m_map.find(address);
- assert(i != m_map.end());
- const PersistentTableEntry& entry = i->second;
- return entry.m_starving.smallestElement();
-}
-
-AccessType
-PersistentTable::typeOfSmallest(const Address& address) const
-{
- assert(address == line_address(address));
- AddressMap::const_iterator i = m_map.find(address);
- assert(i != m_map.end());
- const PersistentTableEntry& entry = i->second;
- if (entry.m_request_to_write.
- isElement(entry.m_starving.smallestElement())) {
- return AccessType_Write;
- } else {
- return AccessType_Read;
- }
-}
-
-void
-PersistentTable::markEntries(const Address& address)
-{
- assert(address == line_address(address));
- AddressMap::iterator i = m_map.find(address);
- if (i == m_map.end())
- return;
-
- PersistentTableEntry& entry = i->second;
-
- // None should be marked
- assert(entry.m_marked.isEmpty());
-
- // Mark all the nodes currently in the table
- entry.m_marked = entry.m_starving;
-}
-
-bool
-PersistentTable::isLocked(const Address& address) const
-{
- assert(address == line_address(address));
-
- // If an entry is present, it must be locked
- return m_map.count(address) > 0;
-}
-
-int
-PersistentTable::countStarvingForAddress(const Address& address) const
-{
- assert(address == line_address(address));
- AddressMap::const_iterator i = m_map.find(address);
- if (i == m_map.end())
- return 0;
-
- const PersistentTableEntry& entry = i->second;
- return entry.m_starving.count();
-}
-
-int
-PersistentTable::countReadStarvingForAddress(const Address& address) const
-{
- assert(address == line_address(address));
- AddressMap::const_iterator i = m_map.find(address);
- if (i == m_map.end())
- return 0;
-
- const PersistentTableEntry& entry = i->second;
- return entry.m_starving.count() - entry.m_request_to_write.count();
-}
-
-void
-PersistentTable::print(ostream& out) const
-{
-}
-