diff options
Diffstat (limited to 'src/mem/ruby/system')
| -rw-r--r-- | src/mem/ruby/system/CacheRecorder.cc | 15 | ||||
| -rw-r--r-- | src/mem/ruby/system/CacheRecorder.hh | 2 | ||||
| -rw-r--r-- | src/mem/ruby/system/RubySystem.py | 11 | ||||
| -rw-r--r-- | src/mem/ruby/system/Sequencer.cc | 42 | ||||
| -rw-r--r-- | src/mem/ruby/system/System.cc | 27 | ||||
| -rw-r--r-- | src/mem/ruby/system/System.hh | 10 |
6 files changed, 59 insertions, 48 deletions
diff --git a/src/mem/ruby/system/CacheRecorder.cc b/src/mem/ruby/system/CacheRecorder.cc index 9568d6a88..a2ac6bdf8 100644 --- a/src/mem/ruby/system/CacheRecorder.cc +++ b/src/mem/ruby/system/CacheRecorder.cc @@ -58,6 +58,15 @@ CacheRecorder::CacheRecorder(uint8_t* uncompressed_trace, m_seq_map(seq_map), m_bytes_read(0), m_records_read(0), m_records_flushed(0), m_block_size_bytes(block_size_bytes) { + if (m_uncompressed_trace != NULL) { + if (m_block_size_bytes < RubySystem::getBlockSizeBytes()) { + // Block sizes larger than when the trace was recorded are not + // supported, as we cannot reliably turn accesses to smaller blocks + // into larger ones. + panic("Recorded cache block size (%d) < current block size (%d) !!", + m_block_size_bytes, RubySystem::getBlockSizeBytes()); + } + } } CacheRecorder::~CacheRecorder() @@ -152,13 +161,13 @@ CacheRecorder::addRecord(int cntrl, Addr data_addr, Addr pc_addr, m_records.push_back(rec); } -uint64_t -CacheRecorder::aggregateRecords(uint8_t **buf, uint64_t total_size) +uint64 +CacheRecorder::aggregateRecords(uint8_t** buf, uint64 total_size) { std::sort(m_records.begin(), m_records.end(), compareTraceRecords); int size = m_records.size(); - uint64_t current_size = 0; + uint64 current_size = 0; int record_size = sizeof(TraceRecord) + m_block_size_bytes; for (int i = 0; i < size; ++i) { diff --git a/src/mem/ruby/system/CacheRecorder.hh b/src/mem/ruby/system/CacheRecorder.hh index 44110cf9f..a4a7261f4 100644 --- a/src/mem/ruby/system/CacheRecorder.hh +++ b/src/mem/ruby/system/CacheRecorder.hh @@ -77,7 +77,7 @@ class CacheRecorder void addRecord(int cntrl, Addr data_addr, Addr pc_addr, RubyRequestType type, Tick time, DataBlock& data); - uint64_t aggregateRecords(uint8_t **data, uint64_t size); + uint64 aggregateRecords(uint8_t** data, uint64 size); /*! * Function for flushing the memory contents of the caches to the diff --git a/src/mem/ruby/system/RubySystem.py b/src/mem/ruby/system/RubySystem.py index 9ffaa5702..81a9a181b 100644 --- a/src/mem/ruby/system/RubySystem.py +++ b/src/mem/ruby/system/RubySystem.py @@ -34,6 +34,7 @@ from SimpleMemory import * class RubySystem(ClockedObject): type = 'RubySystem' cxx_header = "mem/ruby/system/System.hh" + random_seed = Param.Int(1234, "random seed used by the simulation"); randomization = Param.Bool(False, "insert random delays on message enqueue times"); block_size_bytes = Param.UInt32(64, @@ -41,13 +42,11 @@ class RubySystem(ClockedObject): memory_size_bits = Param.UInt32(64, "number of bits that a memory address requires"); - phys_mem = Param.SimpleMemory(NULL, "") - - access_backing_store = Param.Bool(False, "Use phys_mem as the functional \ - store and only use ruby for timing.") - # Profiler related configuration variables hot_lines = Param.Bool(False, "") all_instructions = Param.Bool(False, "") num_of_sequencers = Param.Int("") - number_of_virtual_networks = Param.Unsigned("") + phys_mem = Param.SimpleMemory(NULL, "") + + access_backing_store = Param.Bool(False, "Use phys_mem as the functional \ + store and only use ruby for timing.") diff --git a/src/mem/ruby/system/Sequencer.cc b/src/mem/ruby/system/Sequencer.cc index 740db7d8d..305758798 100644 --- a/src/mem/ruby/system/Sequencer.cc +++ b/src/mem/ruby/system/Sequencer.cc @@ -317,27 +317,28 @@ Sequencer::removeRequest(SequencerRequest* srequest) void Sequencer::invalidateSC(Addr address) { - AbstractCacheEntry *e = m_dataCache_ptr->lookup(address); - // The controller has lost the coherence permissions, hence the lock - // on the cache line maintained by the cache should be cleared. - if (e && e->isLocked(m_version)) { - e->clearLocked(); + RequestTable::iterator i = m_writeRequestTable.find(address); + if (i != m_writeRequestTable.end()) { + SequencerRequest* request = i->second; + // The controller has lost the coherence permissions, hence the lock + // on the cache line maintained by the cache should be cleared. + if (request->m_type == RubyRequestType_Store_Conditional) { + m_dataCache_ptr->clearLocked(address); + } } } bool Sequencer::handleLlsc(Addr address, SequencerRequest* request) { - AbstractCacheEntry *e = m_dataCache_ptr->lookup(address); - if (!e) - return true; - + // // The success flag indicates whether the LLSC operation was successful. // LL ops will always succeed, but SC may fail if the cache line is no // longer locked. + // bool success = true; if (request->m_type == RubyRequestType_Store_Conditional) { - if (!e->isLocked(m_version)) { + if (!m_dataCache_ptr->isLocked(address, m_version)) { // // For failed SC requests, indicate the failure to the cpu by // setting the extra data to zero. @@ -354,18 +355,19 @@ Sequencer::handleLlsc(Addr address, SequencerRequest* request) // // Independent of success, all SC operations must clear the lock // - e->clearLocked(); + m_dataCache_ptr->clearLocked(address); } else if (request->m_type == RubyRequestType_Load_Linked) { // // Note: To fully follow Alpha LLSC semantics, should the LL clear any // previously locked cache lines? // - e->setLocked(m_version); - } else if (e->isLocked(m_version)) { + m_dataCache_ptr->setLocked(address, m_version); + } else if ((m_dataCache_ptr->isTagPresent(address)) && + (m_dataCache_ptr->isLocked(address, m_version))) { // // Normal writes should clear the locked address // - e->clearLocked(); + m_dataCache_ptr->clearLocked(address); } return success; } @@ -496,15 +498,19 @@ Sequencer::hitCallback(SequencerRequest* srequest, DataBlock& data, const Cycles forwardRequestTime, const Cycles firstResponseTime) { - warn_once("Replacement policy updates recently became the responsibility " - "of SLICC state machines. Make sure to setMRU() near callbacks " - "in .sm files!"); - PacketPtr pkt = srequest->pkt; Addr request_address(pkt->getAddr()); + Addr request_line_address = makeLineAddress(pkt->getAddr()); RubyRequestType type = srequest->m_type; Cycles issued_time = srequest->issue_time; + // Set this cache entry to the most recently used + if (type == RubyRequestType_IFETCH) { + m_instCache_ptr->setMRU(request_line_address); + } else { + m_dataCache_ptr->setMRU(request_line_address); + } + assert(curCycle() >= issued_time); Cycles total_latency = curCycle() - issued_time; diff --git a/src/mem/ruby/system/System.cc b/src/mem/ruby/system/System.cc index cb485a47b..c00082010 100644 --- a/src/mem/ruby/system/System.cc +++ b/src/mem/ruby/system/System.cc @@ -45,6 +45,7 @@ using namespace std; +int RubySystem::m_random_seed; bool RubySystem::m_randomization; uint32_t RubySystem::m_block_size_bytes; uint32_t RubySystem::m_block_size_bits; @@ -59,6 +60,8 @@ RubySystem::RubySystem(const Params *p) : ClockedObject(p), m_access_backing_store(p->access_backing_store), m_cache_recorder(NULL) { + m_random_seed = p->random_seed; + srandom(m_random_seed); m_randomization = p->randomization; m_block_size_bytes = p->block_size_bytes; @@ -99,8 +102,8 @@ RubySystem::~RubySystem() void RubySystem::makeCacheRecorder(uint8_t *uncompressed_trace, - uint64_t cache_trace_size, - uint64_t block_size_bytes) + uint64 cache_trace_size, + uint64 block_size_bytes) { vector<Sequencer*> sequencer_map; Sequencer* sequencer_ptr = NULL; @@ -204,7 +207,7 @@ RubySystem::memWriteback() void RubySystem::writeCompressedTrace(uint8_t *raw_data, string filename, - uint64_t uncompressed_trace_size) + uint64 uncompressed_trace_size) { // Create the checkpoint file for the memory string thefile = CheckpointIn::dir() + "/" + filename.c_str(); @@ -237,7 +240,7 @@ RubySystem::serializeOld(CheckpointOut &cp) // Store the cache-block size, so we are able to restore on systems with a // different cache-block size. CacheRecorder depends on the correct // cache-block size upon unserializing. - uint64_t block_size_bytes = getBlockSizeBytes(); + uint64 block_size_bytes = getBlockSizeBytes(); SERIALIZE_SCALAR(block_size_bytes); // Check that there's a valid trace to use. If not, then memory won't be @@ -249,7 +252,7 @@ RubySystem::serializeOld(CheckpointOut &cp) // Aggregate the trace entries together into a single array uint8_t *raw_data = new uint8_t[4096]; - uint64_t cache_trace_size = m_cache_recorder->aggregateRecords(&raw_data, + uint64 cache_trace_size = m_cache_recorder->aggregateRecords(&raw_data, 4096); string cache_trace_file = name() + ".cache.gz"; writeCompressedTrace(raw_data, cache_trace_file, cache_trace_size); @@ -264,7 +267,7 @@ RubySystem::serializeOld(CheckpointOut &cp) void RubySystem::readCompressedTrace(string filename, uint8_t *&raw_data, - uint64_t &uncompressed_trace_size) + uint64& uncompressed_trace_size) { // Read the trace file gzFile compressedTrace; @@ -301,19 +304,11 @@ RubySystem::unserialize(CheckpointIn &cp) // This value should be set to the checkpoint-system's block-size. // Optional, as checkpoints without it can be run if the // checkpoint-system's block-size == current block-size. - uint64_t block_size_bytes = m_block_size_bytes; + uint64 block_size_bytes = getBlockSizeBytes(); UNSERIALIZE_OPT_SCALAR(block_size_bytes); - if (block_size_bytes < m_block_size_bytes) { - // Block sizes larger than when the trace was recorded are not - // supported, as we cannot reliably turn accesses to smaller blocks - // into larger ones. - panic("Recorded cache block size (%d) < current block size (%d) !!", - block_size_bytes, m_block_size_bytes); - } - string cache_trace_file; - uint64_t cache_trace_size = 0; + uint64 cache_trace_size = 0; UNSERIALIZE_SCALAR(cache_trace_file); UNSERIALIZE_SCALAR(cache_trace_size); diff --git a/src/mem/ruby/system/System.hh b/src/mem/ruby/system/System.hh index 70d216201..787e4f4ae 100644 --- a/src/mem/ruby/system/System.hh +++ b/src/mem/ruby/system/System.hh @@ -70,6 +70,7 @@ class RubySystem : public ClockedObject ~RubySystem(); // config accessors + static int getRandomSeed() { return m_random_seed; } static int getRandomization() { return m_randomization; } static uint32_t getBlockSizeBytes() { return m_block_size_bytes; } static uint32_t getBlockSizeBits() { return m_block_size_bits; } @@ -117,17 +118,18 @@ class RubySystem : public ClockedObject RubySystem& operator=(const RubySystem& obj); void makeCacheRecorder(uint8_t *uncompressed_trace, - uint64_t cache_trace_size, - uint64_t block_size_bytes); + uint64 cache_trace_size, + uint64 block_size_bytes); void readCompressedTrace(std::string filename, uint8_t *&raw_data, - uint64_t &uncompressed_trace_size); + uint64& uncompressed_trace_size); void writeCompressedTrace(uint8_t *raw_data, std::string file, - uint64_t uncompressed_trace_size); + uint64 uncompressed_trace_size); private: // configuration parameters + static int m_random_seed; static bool m_randomization; static uint32_t m_block_size_bytes; static uint32_t m_block_size_bits; |