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| | Base32Delta8 (const Params &p) |
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| | ~Base32Delta8 ()=default |
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| | BaseDelta (const Params &p) |
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| | ~BaseDelta ()=default |
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| | DictionaryCompressor (const Params &p) |
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| | ~DictionaryCompressor ()=default |
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| | BaseDictionaryCompressor (const Params &p) |
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| | ~BaseDictionaryCompressor ()=default |
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| | Base (const Params &p) |
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| virtual | ~Base ()=default |
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| virtual void | setCache (BaseCache *_cache) |
| | The cache can only be set once.
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| std::unique_ptr< CompressionData > | compress (const uint64_t *data, Cycles &comp_lat, Cycles &decomp_lat) |
| | Apply the compression process to the cache line.
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| Cycles | getDecompressionLatency (const CacheBlk *blk) |
| | Get the decompression latency if the block is compressed.
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| const Params & | params () const |
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| | SimObject (const Params &p) |
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| virtual | ~SimObject () |
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| virtual void | init () |
| | init() is called after all C++ SimObjects have been created and all ports are connected.
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| virtual void | loadState (CheckpointIn &cp) |
| | loadState() is called on each SimObject when restoring from a checkpoint.
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| virtual void | initState () |
| | initState() is called on each SimObject when not restoring from a checkpoint.
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| virtual void | regProbePoints () |
| | Register probe points for this object.
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| virtual void | regProbeListeners () |
| | Register probe listeners for this object.
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| ProbeManager * | getProbeManager () |
| | Get the probe manager for this object.
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| virtual Port & | getPort (const std::string &if_name, PortID idx=InvalidPortID) |
| | Get a port with a given name and index.
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| virtual void | startup () |
| | startup() is the final initialization call before simulation.
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| DrainState | drain () override |
| | Provide a default implementation of the drain interface for objects that don't need draining.
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| virtual void | memWriteback () |
| | Write back dirty buffers to memory using functional writes.
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| virtual void | memInvalidate () |
| | Invalidate the contents of memory buffers.
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| void | serialize (CheckpointOut &cp) const override |
| | Serialize an object.
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| void | unserialize (CheckpointIn &cp) override |
| | Unserialize an object.
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| EventQueue * | eventQueue () const |
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| void | schedule (Event &event, Tick when) |
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| void | deschedule (Event &event) |
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| void | reschedule (Event &event, Tick when, bool always=false) |
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| void | schedule (Event *event, Tick when) |
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| void | deschedule (Event *event) |
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| void | reschedule (Event *event, Tick when, bool always=false) |
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| void | wakeupEventQueue (Tick when=(Tick) -1) |
| | This function is not needed by the usual gem5 event loop but may be necessary in derived EventQueues which host gem5 on other schedulers.
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| void | setCurTick (Tick newVal) |
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| | EventManager (EventManager &em) |
| | Event manger manages events in the event queue.
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| | EventManager (EventManager *em) |
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| | EventManager (EventQueue *eq) |
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| | Serializable () |
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| virtual | ~Serializable () |
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| virtual void | serialize (CheckpointOut &cp) const =0 |
| | Serialize an object.
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| virtual void | unserialize (CheckpointIn &cp)=0 |
| | Unserialize an object.
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| void | serializeSection (CheckpointOut &cp, const char *name) const |
| | Serialize an object into a new section.
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| void | serializeSection (CheckpointOut &cp, const std::string &name) const |
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| void | unserializeSection (CheckpointIn &cp, const char *name) |
| | Unserialize an a child object.
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| void | unserializeSection (CheckpointIn &cp, const std::string &name) |
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| DrainState | drainState () const |
| | Return the current drain state of an object.
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| virtual void | notifyFork () |
| | Notify a child process of a fork.
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| | Group (Group *parent, const char *name=nullptr) |
| | Construct a new statistics group.
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| virtual | ~Group () |
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| virtual void | regStats () |
| | Callback to set stat parameters.
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| virtual void | resetStats () |
| | Callback to reset stats.
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| virtual void | preDumpStats () |
| | Callback before stats are dumped.
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| void | addStat (statistics::Info *info) |
| | Register a stat with this group.
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| const std::map< std::string, Group * > & | getStatGroups () const |
| | Get all child groups associated with this object.
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| const std::vector< Info * > & | getStats () const |
| | Get all stats associated with this object.
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| void | addStatGroup (const char *name, Group *block) |
| | Add a stat block as a child of this block.
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| const Info * | resolveStat (std::string name) const |
| | Resolve a stat by its name within this group.
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| void | mergeStatGroup (Group *block) |
| | Merge the contents (stats & children) of a block to this block.
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| | Group (const Group &)=delete |
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| Group & | operator= (const Group &)=delete |
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| | Named (const std::string &name_) |
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| virtual | ~Named ()=default |
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| virtual std::string | name () const |
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| static void | setDecompressionLatency (CacheBlk *blk, const Cycles lat) |
| | Set the decompression latency of compressed block.
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| static void | setSizeBits (CacheBlk *blk, const std::size_t size_bits) |
| | Set the size of the compressed block, in bits.
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| static void | serializeAll (const std::string &cpt_dir) |
| | Create a checkpoint by serializing all SimObjects in the system.
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| static SimObject * | find (const char *name) |
| | Find the SimObject with the given name and return a pointer to it.
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| static void | setSimObjectResolver (SimObjectResolver *resolver) |
| | There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.
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| static SimObjectResolver * | getSimObjectResolver () |
| | There is a single object name resolver, and it is only set when simulation is restoring from checkpoints.
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| static const std::string & | currentSection () |
| | Gets the fully-qualified name of the active section.
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| static void | generateCheckpointOut (const std::string &cpt_dir, std::ofstream &outstream) |
| | Generate a checkpoint file so that the serialization can be routed to it.
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| enum | PatternNumber |
| | The patterns proposed in the paper. More...
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| using | DictionaryEntry = typename DictionaryCompressor< uint32_t >::DictionaryEntry |
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| using | PatternFactory = typename DictionaryCompressor< uint32_t >::template Factory< PatternM, PatternX > |
| | Convenience factory declaration.
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| typedef std::array< uint8_t, sizeof(T)> | DictionaryEntry |
| | Convenience typedef for a dictionary entry.
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| typedef uint64_t | Chunk |
| | A chunk is a basic lexical unit.
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| uint64_t | getNumPatterns () const override |
| | Trick function to get the number of patterns.
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| std::unique_ptr< typename DictionaryCompressor< uint32_t >::Pattern > | getPattern (const DictionaryEntry &bytes, const DictionaryEntry &dict_bytes, const int match_location) const override |
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| std::string | getName (int number) const override |
| | Get meta-name assigned to the given pattern.
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| void | resetDictionary () override |
| | Clear all dictionary entries.
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| void | addToDictionary (DictionaryEntry data) override |
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| std::unique_ptr< Base::CompressionData > | compress (const std::vector< Base::Chunk > &chunks, Cycles &comp_lat, Cycles &decomp_lat) override |
| | Apply the compression process to the cache line.
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| virtual std::unique_ptr< Pattern > | getPattern (const DictionaryEntry &bytes, const DictionaryEntry &dict_bytes, const int match_location) const =0 |
| | Since the factory cannot be instantiated here, classes that inherit from this base class have to implement the call to their factory's getPattern.
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| std::unique_ptr< Pattern > | compressValue (const T data) |
| | Compress data.
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| T | decompressValue (const Pattern *pattern) |
| | Decompress a pattern into a value that fits in a dictionary entry.
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| virtual void | resetDictionary () |
| | Clear all dictionary entries.
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| virtual void | addToDictionary (const DictionaryEntry data)=0 |
| | Add an entry to the dictionary.
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| virtual std::unique_ptr< DictionaryCompressor::CompData > | instantiateDictionaryCompData () const |
| | Instantiate a compression data of the sub-class compressor.
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| std::unique_ptr< Base::CompressionData > | compress (const std::vector< Chunk > &chunks) |
| | Apply compression.
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| std::unique_ptr< Base::CompressionData > | compress (const std::vector< Chunk > &chunks, Cycles &comp_lat, Cycles &decomp_lat) override |
| | Apply the compression process to the cache line.
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| void | decompress (const CompressionData *comp_data, uint64_t *data) override |
| | Apply the decompression process to the compressed data.
|
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| virtual uint64_t | getNumPatterns () const =0 |
| | Trick function to get the number of patterns.
|
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| virtual std::string | getName (int number) const =0 |
| | Get meta-name assigned to the given pattern.
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| std::vector< Chunk > | toChunks (const uint64_t *data) const |
| | This function splits the raw data into chunks, so that it can be parsed by the compressor.
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| void | fromChunks (const std::vector< Chunk > &chunks, uint64_t *data) const |
| | This function re-joins the chunks to recreate the original data.
|
| |
| virtual std::unique_ptr< CompressionData > | compress (const std::vector< Chunk > &chunks, Cycles &comp_lat, Cycles &decomp_lat)=0 |
| | Apply the compression process to the cache line.
|
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| virtual void | decompress (const CompressionData *comp_data, uint64_t *cache_line)=0 |
| | Apply the decompression process to the compressed data.
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| | Drainable () |
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| virtual | ~Drainable () |
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| virtual DrainState | drain ()=0 |
| | Draining is the process of clearing out the states of SimObjects.These are the SimObjects that are partially executed or are partially in flight.
|
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| virtual void | drainResume () |
| | Resume execution after a successful drain.
|
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| void | signalDrainDone () const |
| | Signal that an object is drained.
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| |
| static DictionaryEntry | toDictionaryEntry (T value) |
| | Turn a value into a dictionary entry.
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| static T | fromDictionaryEntry (const DictionaryEntry &entry) |
| | Turn a dictionary entry into a value.
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| std::vector< DictionaryEntry > | dictionary |
| | The dictionary.
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| const std::size_t | dictionarySize |
| | Dictionary size.
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| std::size_t | numEntries |
| | Number of valid entries in the dictionary.
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| gem5::compression::BaseDictionaryCompressor::DictionaryStats | dictionaryStats |
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| const std::size_t | blkSize |
| | Uncompressed cache line size (in bytes).
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| const unsigned | chunkSizeBits |
| | Chunk size, in number of bits.
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| const std::size_t | sizeThreshold |
| | Size in bytes at which a compression is classified as bad and therefore the compressed block is restored to its uncompressed format.
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| const Cycles | compChunksPerCycle |
| | Degree of parallelization of the compression process.
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| const Cycles | compExtraLatency |
| | Extra latency added to compression due to packaging, shifting or other operations.
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| const Cycles | decompChunksPerCycle |
| | Degree of parallelization of the decompression process.
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| const Cycles | decompExtraLatency |
| | Extra latency added to decompression due to packaging, shifting or other operations.
|
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| BaseCache * | cache |
| | Pointer to the parent cache.
|
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| gem5::compression::Base::BaseStats | stats |
| |
| const SimObjectParams & | _params |
| | Cached copy of the object parameters.
|
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| EventQueue * | eventq |
| | A pointer to this object's event queue.
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| static constexpr int | DEFAULT_MAX_NUM_BASES |
| |
Definition at line 187 of file base_delta.hh.
Public Types inherited from gem5::compression::BaseDelta< uint32_t, 8 >