-
/*
* Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
* All rights reserved.
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
-/*
- * DirectoryMemory.cc
- *
- * Description: See DirectoryMemory.hh
- *
- * $Id$
- *
- */
-
-#include "mem/ruby/system/System.hh"
-#include "mem/ruby/system/DirectoryMemory.hh"
+#include "base/intmath.hh"
+#include "debug/RubyCache.hh"
#include "mem/ruby/slicc_interface/RubySlicc_Util.hh"
-#include "mem/ruby/slicc_interface/AbstractController.hh"
-#include "mem/gems_common/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;
-int DirectoryMemory::m_total_size_bytes = 0;
+uint64_t DirectoryMemory::m_total_size_bytes = 0;
+int DirectoryMemory::m_numa_high_bit = 0;
-DirectoryMemory::DirectoryMemory(const string & name)
- : m_name(name)
+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(const vector<string> & argv)
+void
+DirectoryMemory::init()
{
- m_controller = NULL;
- for (vector<string>::const_iterator it = argv.begin(); it != argv.end(); it++) {
- if ( (*it) == "version" )
- m_version = atoi( (*(++it)).c_str() );
- else if ( (*it) == "size_mb" ) {
- m_size_bytes = atoi((*(++it)).c_str()) * static_cast<uint64>(1<<20);
- m_size_bits = log_int(m_size_bytes);
- } else if ( (*it) == "controller" ) {
- m_controller = RubySystem::getController((*(++it)));
+ 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 {
- cerr << "DirectoryMemory: Unkown config parameter: " << (*it) << endl;
- assert(0);
+ 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();
}
- }
- assert(m_controller != NULL);
- m_num_entries = m_size_bytes / RubySystem::getBlockSizeBytes();
- m_entries = new Directory_Entry*[m_num_entries];
- for (int i=0; i < m_num_entries; i++)
- m_entries[i] = NULL;
+ m_num_directories++;
+ m_num_directories_bits = floorLog2(m_num_directories);
+ m_total_size_bytes += m_size_bytes;
- m_ram = g_system_ptr->getMemoryVector();
-
- m_num_directories++;
- m_num_directories_bits = log_int(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
- for (int i=0;i<m_num_entries;i++)
- if (m_entries[i] != NULL)
- delete m_entries;
- if (m_entries != NULL)
- delete [] m_entries;
+ // 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;
+ }
}
-void DirectoryMemory::printConfig(ostream& out) const
+void
+DirectoryMemory::printConfig(ostream& out) const
{
- out << "DirectoryMemory module config: " << m_name << endl;
- out << " controller: " << m_controller->getName() << endl;
- out << " version: " << m_version << endl;
- out << " memory_bits: " << m_size_bits << endl;
- out << " memory_size_bytes: " << m_size_bytes << endl;
- out << " memory_size_Kbytes: " << double(m_size_bytes) / (1<<10) << endl;
- out << " memory_size_Mbytes: " << double(m_size_bytes) / (1<<20) << endl;
- out << " memory_size_Gbytes: " << double(m_size_bytes) / (1<<30) << endl;
+ out << "DirectoryMemory module config: " << m_name << endl
+ << " version: " << m_version << endl
+ << " memory_bits: " << m_size_bits << endl
+ << " memory_size_bytes: " << m_size_bytes << endl
+ << " memory_size_Kbytes: " << double(m_size_bytes) / (1<<10) << endl
+ << " memory_size_Mbytes: " << double(m_size_bytes) / (1<<20) << endl
+ << " memory_size_Gbytes: " << double(m_size_bytes) / (1<<30) << endl;
}
// Static method
-void DirectoryMemory::printGlobalConfig(ostream & out)
+void
+DirectoryMemory::printGlobalConfig(ostream & out)
{
- out << "DirectoryMemory Global Config: " << endl;
- out << " number of directory memories: " << m_num_directories << endl;
- if (m_num_directories > 1) {
- out << " number of selection bits: " << m_num_directories_bits << endl;
- out << " selection bits: " << RubySystem::getBlockSizeBits()+m_num_directories_bits-1
- << "-" << RubySystem::getBlockSizeBits() << endl;
- }
- out << " total memory size bytes: " << m_total_size_bytes << endl;
- out << " total memory size bits: " << log_int(m_total_size_bytes) << endl;
-
+ out << "DirectoryMemory Global Config: " << endl;
+ out << " number of directory memories: " << m_num_directories << endl;
+ if (m_num_directories > 1) {
+ out << " number of selection bits: " << m_num_directories_bits << endl
+ << " selection bits: " << m_numa_high_bit
+ << "-" << m_numa_high_bit-m_num_directories_bits
+ << endl;
+ }
+ out << " total memory size bytes: " << m_total_size_bytes << endl;
+ out << " total memory bits: " << floorLog2(m_total_size_bytes) << endl;
}
-int DirectoryMemory::mapAddressToDirectoryVersion(PhysAddress address)
+uint64
+DirectoryMemory::mapAddressToDirectoryVersion(PhysAddress address)
{
- if (m_num_directories_bits == 0) return 0;
- int ret = address.bitSelect(RubySystem::getBlockSizeBits(),
- RubySystem::getBlockSizeBits()+m_num_directories_bits-1);
- return ret;
+ 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;
}
-// Public method
-bool DirectoryMemory::isPresent(PhysAddress address)
+bool
+DirectoryMemory::isPresent(PhysAddress address)
{
- bool ret = (mapAddressToDirectoryVersion(address) == m_version);
- return ret;
+ bool ret = (mapAddressToDirectoryVersion(address) == m_version);
+ return ret;
}
-int DirectoryMemory::mapAddressToLocalIdx(PhysAddress address)
+uint64
+DirectoryMemory::mapAddressToLocalIdx(PhysAddress address)
{
- int ret = address.getAddress() >> (RubySystem::getBlockSizeBits() + m_num_directories_bits);
- return ret;
+ 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());
}
-Directory_Entry& DirectoryMemory::lookup(PhysAddress address)
+AbstractEntry*
+DirectoryMemory::lookup(PhysAddress address)
{
- assert(isPresent(address));
- Directory_Entry* entry;
- int idx = mapAddressToLocalIdx(address);
- entry = m_entries[idx];
- if (entry == NULL) {
- entry = new Directory_Entry;
- entry->getDataBlk().assign(m_ram->getBlockPtr(address));
- m_entries[idx] = entry;
- }
- return (*entry);
+ 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];
+ }
}
-/*
-Directory_Entry& DirectoryMemory::lookup(PhysAddress address)
+
+AbstractEntry*
+DirectoryMemory::allocate(const PhysAddress& address, AbstractEntry* entry)
{
- assert(isPresent(address));
- Index index = address.memoryModuleIndex();
-
- if (index < 0 || index > m_size) {
- WARN_EXPR(address.getAddress());
- WARN_EXPR(index);
- WARN_EXPR(m_size);
- ERROR_MSG("Directory Memory Assertion: accessing memory out of range.");
- }
- Directory_Entry* entry = m_entries[index];
-
- // allocate the directory entry on demand.
- if (entry == NULL) {
- entry = new Directory_Entry;
- entry->getDataBlk().assign(m_ram->getBlockPtr(address));
-
- // store entry to the table
- m_entries[index] = entry;
- }
-
- return (*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)
+void
+DirectoryMemory::invalidateBlock(PhysAddress address)
{
- /*
- assert(isPresent(address));
+ if (m_use_map) {
+ assert(m_sparseMemory->exist(address));
+ m_sparseMemory->remove(address);
+ }
+#if 0
+ else {
+ assert(isPresent(address));
- Index index = address.memoryModuleIndex();
+ Index index = address.memoryModuleIndex();
- if (index < 0 || index > m_size) {
- ERROR_MSG("Directory Memory Assertion: accessing memory out of range.");
- }
+ 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;
- }
- */
+ if (m_entries[index] != NULL){
+ delete m_entries[index];
+ m_entries[index] = NULL;
+ }
+ }
+#endif
}
-void DirectoryMemory::print(ostream& out) const
+void
+DirectoryMemory::print(ostream& out) const
{
+}
+void
+DirectoryMemory::printStats(ostream& out) const
+{
+ if (m_use_map) {
+ m_sparseMemory->printStats(out);
+ }
}
+DirectoryMemory *
+RubyDirectoryMemoryParams::create()
+{
+ return new DirectoryMemory(this);
+}
projects / gem5.git / blobdiff