gem5 - gem5

Age	Commit message (Collapse)	Author
2010-08-23	CPU: Make Exec trace to print predication result (if false) for memory ↵	Min Kyu Jeong
	instructions
2010-08-23	ARM: mark msr/mrs instructions as SerializeBefore/After	Min Kyu Jeong
	Since miscellaneous registers bypass wakeup logic, force serialization to resolve data dependencies through them * * * ARM: adding non-speculative/serialize flags for instructions change CPSR
2010-08-23	O3: Handle loads when the destination is the PC.	Min Kyu Jeong
	For loads that PC is the destination, check if the load was mispredicted again when the value being loaded returns from memory
2010-08-23	ARM/O3: store the result of the predicate evaluation in DynInst or Threadstate.	Min Kyu Jeong
	THis allows the CPU to handle predicated-false instructions accordingly. This particular patch makes loads that are predicated-false to be sent straight to the commit stage directly, not waiting for return of the data that was never requested since it was predicated-false.
2010-08-23	ARM: adding genMachineCheckFault() stub for ARM that doesn't panic	Min Kyu Jeong

2010-08-23	ARM: DFSR status value for sync external data abort is expected to be 0x8 in ↵	Gene Wu
	ARMv7
2010-08-23	ARM: Temporary local variables can't conflict with isa parser operands.	Gene Wu
	PC is an operand, so we can't have a temp called PC
2010-08-23	ARM: Exclusive accesses must be double word aligned	Ali Saidi

2010-08-23	ARM: Add some registers for big loads/stores to support neon.	Ali Saidi

2010-08-23	ARM: Decode neon memory instructions.	Ali Saidi

2010-08-23	ARM: Clean up the ISA desc portion of the ARM memory instructions.	Gabe Black

2010-08-23	Loader: Don't insert symbols into the symbol table that begin wiht '$'.	Ali Saidi

2010-08-23	ARM: We don't currently support ThumbEE exceptions, so don't report that we do	Ali Saidi

2010-08-23	ARM: Change how the AMBA device ID checking is done to make it more generic	Ali Saidi

2010-08-23	ARM: Add configuration for Linux/Full System	Ali Saidi

2010-08-23	ARM: Add system for ARM/Linux and bootstrapping	Ali Saidi

2010-08-23	ARM: Add I/O devices for booting linux	Ali Saidi
	--HG-- rename : src/dev/arm/Versatile.py => src/dev/arm/RealView.py rename : src/dev/arm/versatile.cc => src/dev/arm/realview.cc rename : src/dev/arm/versatile.hh => src/dev/arm/realview.hh
2010-08-23	ARM: Implement some more misc registers	Ali Saidi

2010-08-23	ARM: Fix an un-initialized variable bug	Ali Saidi

2010-08-23	Loader: Use address mask provided to load*Symbols when loading the symbols ↵	Ali Saidi
	from the symbol table.
2010-08-23	Loader: Make the load address mask be a parameter of the system rather than ↵	Ali Saidi
	a constant. This allows one two different OS requirements for the same ISA to be handled. Some OSes are compiled for a virtual address and need to be loaded into physical memory that starts at address 0, while other bare metal tools generate images that start at address 0.
2010-08-23	ARM: Finish the timing translation when taking a fault.	Min Kyu Jeong

2010-08-23	ARM: Use a stl queue for the table walker state	Dam Sunwoo

2010-08-23	CPU: Set a default value when readBytes faults.	Ali Saidi
	This was being done in read(), but if readBytes was called directly it wouldn't happen. Also, instead of setting the memory blob being read to -1 which would (I believe) require using memset with -1 as a parameter, this now uses bzero. It's hoped that it's more specialized behavior will make it slightly faster.
2010-08-23	Compiler: Fixes for GCC 4.5.	Ali Saidi

2010-08-23	BASE: Fix genrand to generate both 0s and 1s when max equals one.	Ali Saidi
	previously was only generating 0s.
2010-08-23	stats: Fix off-by-one error in distributions.	Ali Saidi
	bkt size isn't evenly divisible by max-min and it would round down, it's possible to sample a distribution and have no place to put the sample. When this case occured the simulator would assert.
2010-08-22	X86: Get rid of unused file arguments.hh.	Gabe Black

2010-08-22	SPARC: Fix some style issues in utility.hh.	Gabe Black

2010-08-22	X86: Get rid of the unused getAllocator on the python base microop class.	Gabe Black
	This function is always overridden, and doesn't actually have the right signature.
2010-08-20	regress: Regression tester updates	Brad Beckmann
	Regression tester updates required by the following patches: brad/moved_python_protocol_files: config: moved python protocol config files brad/ruby_options_movement: config: reorganized how ruby specifies command-line options brad/config_token_bcast: ruby: added token broadcast config params to cmd options brad/topology_name: config: Added the topology description to m5 config.ini brad/ruby_system_names: config: Improve ruby simobject names brad/consolidated_protocol_stats: slicc: Consolidated the protocol stats printing brad/ruby_request_type_ostream_fix: ruby: Added ruby_request_type ostream def to libruby.hh brad/memtest_dma_extension: memtest: Memtester support for DMA brad/token_dma_lockdown_fix: MOESI_CMP_token: Fixed dma persistent lockdown bugs brad/profile_generic_mach_type: ruby: Reincarnated the responding machine profiling brad/network_msg_consolidated_stats: ruby: Added consolidated network msg stats brad/bcast_msg_profiling: ruby: Added bcast msg profiling to hammer and token brad/l2cache_profiling_fix: ruby: Fixed L2 cache miss profiling brad/llsc_ruby_m5_fix: ruby: fix ruby llsc support to sync sc outcomes brad/ruby_latency_fixes: ruby: Reduced ruby latencies brad/hammer_l2_cache_latency: ruby: Updated MOESI_hammer L2 latency behavior brad/deterministic_resurrection: ruby: Resurrected Ruby's deterministic tests brad/token_dma_fixes: ruby: MOESI_CMP_token dma fixes brad/ruby_cmd_options: config: added cmd options to control ruby debug brad/token_owner_fixes: ruby: fixed token bugs associated with owner token counts brad/ruby_remove_try_except: ruby: Improved try except blocks in ruby creation brad/ruby_port_callback_fix: ruby: Fixed RubyPort sendTiming callbacks brad/interrupt_drain_fix: devices: Fixed periodic interrupts to work with draining brad/llsc_trace_profile: ruby: Added SC fail indication to trace profiling brad/no_migrate_atomic: ruby: Disable migratory sharing for token and hammer brad/ruby_start_time_fix: ruby: Reset ruby stats in RubySystem unserialize brad/numa_bit_select_fix: ruby: fixed DirectoryMemory's numa_high_bit configuration brad/hammer_probe_filter: ruby: added probe filter support to hammer brad/miss_latency_detail_profile: MOESI_hammer: break down miss latency stalled cycles brad/recycle_latency_fix: ruby: Recycle latency fix for hammer brad/stall_and_wait: ruby: Stall and wait input messages instead of recycling brad/rubytest_request_flag_fix: ruby: Fixed minor bug in ruby test for setting the request type brad/hammer_merge_gets: ruby: Added merge GETS optimization to hammer brad/regress_updates: regress: Regression tester updates
2010-08-20	ruby: Added merge GETS optimization to hammer	Brad Beckmann
	Added an optimization that merges multiple pending GETS requests into a single request to the owner node.
2010-08-20	ruby: Fixed minor bug in ruby test for setting the request type	Brad Beckmann

2010-08-20	ruby: Stall and wait input messages instead of recycling	Brad Beckmann
	This patch allows messages to be stalled in their input buffers and wait until a corresponding address changes state. In order to make this work, all in_ports must be ranked in order of dependence and those in_ports that may unblock an address, must wake up the stalled messages. Alot of this complexity is handled in slicc and the specification files simply annotate the in_ports. --HG-- rename : src/mem/slicc/ast/CheckAllocateStatementAST.py => src/mem/slicc/ast/StallAndWaitStatementAST.py rename : src/mem/slicc/ast/CheckAllocateStatementAST.py => src/mem/slicc/ast/WakeUpDependentsStatementAST.py
2010-08-20	ruby: Recycle latency fix for hammer	Brad Beckmann
	Patch allows each individual message buffer to have different recycle latencies and allows the overall recycle latency to be specified at the cmd line. The patch also adds profiling info to make sure no one processor's requests are recycled too much.
2010-08-20	MOESI_hammer: break down miss latency stalled cycles	Brad Beckmann
	This patch tracks the number of cycles a transaction is delayed at different points of the request-forward-response loop.
2010-08-20	ruby: added probe filter support to hammer	Brad Beckmann

2010-08-20	ruby: fixed DirectoryMemory's numa_high_bit configuration	Brad Beckmann
	This fix includes the off-by-one bit selection bug for numa mapping.
2010-08-20	ruby: Reset ruby stats in RubySystem unserialize	Brad Beckmann
	The main purpose for clearing stats in the unserialize process is so that the profiler can correctly set its start time to the unserialized value of curTick.
2010-08-20	ruby: Disable migratory sharing for token and hammer	Brad Beckmann
	This patch allows one to disable migratory sharing for those cache blocks that are accessed by atomic requests. While the implementations are different between the token and hammer protocols, the motivation is the same. For Alpha, LLSC semantics expect that normal loads do not unlock cache blocks that have been locked by LL accesses. Therefore, locked blocks should not transfer write permissions when responding to these load requests. Instead, only they only transfer read permissions so that the subsequent SC access can possibly succeed.
2010-08-20	ruby: Added SC fail indication to trace profiling	Brad Beckmann

2010-08-20	devices: Fixed periodic interrupts to work with draining	Brad Beckmann
	Added drain functions to the RTC and 8254 timer so that periodic interrupts stop when the system is draining. This patch is needed to checkpoint in timing mode. Otherwise under certain situations, the event queue will never be completely empty.
2010-08-20	ruby: Fixed RubyPort sendTiming callbacks	Brad Beckmann
	Fixed RubyPort schedSendTiming calls to match ruby frequency.
2010-08-20	ruby: Improved try except blocks in ruby creation	Brad Beckmann
	Replaced the sys.exit in the try-except blocks with raise so that the python call stack will be printed
2010-08-20	ruby: fixed token bugs associated with owner token counts	Brad Beckmann
	This patch fixes several bugs related to previous inconsistent assumptions on how many tokens the Owner had. Mike Marty should have fixes these bugs years ago. :)
2010-08-20	config: added cmd options to control ruby debug	Brad Beckmann

2010-08-20	ruby: MOESI_CMP_token dma fixes	Brad Beckmann
	This patch fixes various protocol bugs regarding races between dma requests and persistent requests.
2010-08-20	ruby: Resurrected Ruby's deterministic tests	Brad Beckmann
	Added the request series and invalidate deterministic tests as new cpu models and removed the no longer needed ruby tests --HG-- rename : configs/example/rubytest.py => configs/example/determ_test.py rename : src/mem/ruby/tester/DetermGETXGenerator.cc => src/cpu/directedtest/DirectedGenerator.cc rename : src/mem/ruby/tester/DetermGETXGenerator.hh => src/cpu/directedtest/DirectedGenerator.hh rename : src/mem/ruby/tester/DetermGETXGenerator.cc => src/cpu/directedtest/InvalidateGenerator.cc rename : src/mem/ruby/tester/DetermGETXGenerator.hh => src/cpu/directedtest/InvalidateGenerator.hh rename : src/cpu/rubytest/RubyTester.cc => src/cpu/directedtest/RubyDirectedTester.cc rename : src/cpu/rubytest/RubyTester.hh => src/cpu/directedtest/RubyDirectedTester.hh rename : src/mem/ruby/tester/DetermGETXGenerator.cc => src/cpu/directedtest/SeriesRequestGenerator.cc rename : src/mem/ruby/tester/DetermGETXGenerator.hh => src/cpu/directedtest/SeriesRequestGenerator.hh
2010-08-20	ruby: Updated MOESI_hammer L2 latency behavior	Brad Beckmann
	Previously, the MOESI_hammer protocol calculated the same latency for L1 and L2 hits. This was because the protocol was written using the old ruby assumption that L1 hits used the sequencer fast path. Since ruby no longer uses the fast-path, the protocol delays L2 hits by placing them on the trigger queue.
2010-08-20	ruby: Reduced ruby latencies	Brad Beckmann
	The previous slower ruby latencies created a mismatch between the faster M5 cpu models and the much slower ruby memory system. Specifically smp interrupts were much slower and infrequent, as well as cpus moving in and out of spin locks. The result was many cpus were idle for large periods of time. These changes fix the latency mismatch.