gem5 - gem5

Age	Commit message (Collapse)	Author
2012-03-30	MEM: Introduce the master/slave port sub-classes in C++	William Wang
	This patch introduces the notion of a master and slave port in the C++ code, thus bringing the previous classification from the Python classes into the corresponding simulation objects and memory objects. The patch enables us to classify behaviours into the two bins and add assumptions and enfore compliance, also simplifying the two interfaces. As a starting point, isSnooping is confined to a master port, and getAddrRanges to slave ports. More of these specilisations are to come in later patches. The getPort function is not getMasterPort and getSlavePort, and returns a port reference rather than a pointer as NULL would never be a valid return value. The default implementation of these two functions is placed in MemObject, and calls fatal. The one drawback with this specific patch is that it requires some code duplication, e.g. QueuedPort becomes QueuedMasterPort and QueuedSlavePort, and BusPort becomes BusMasterPort and BusSlavePort (avoiding multiple inheritance). With the later introduction of the port interfaces, moving the functionality outside the port itself, a lot of the duplicated code will disappear again.
2011-02-11	O3: Enhance data address translation by supporting hardware page table walkers.	Giacomo Gabrielli
	Some ISAs (like ARM) relies on hardware page table walkers. For those ISAs, when a TLB miss occurs, initiateTranslation() can return with NoFault but with the translation unfinished. Instructions experiencing a delayed translation due to a hardware page table walk are deferred until the translation completes and kept into the IQ. In order to keep track of them, the IQ has been augmented with a queue of the outstanding delayed memory instructions. When their translation completes, instructions are re-executed (only their initiateAccess() was already executed; their DTB translation is now skipped). The IEW stage has been modified to support such a 2-pass execution.
2011-02-03	Fault: Rename sim/fault.hh to fault_fwd.hh to distinguish it from faults.hh.	Gabe Black
	--HG-- rename : src/sim/fault.hh => src/sim/fault_fwd.hh
2010-12-07	ARM: Support switchover with hardware table walkers	Ali Saidi

2010-09-13	Faults: Pass the StaticInst involved, if any, to a Fault's invoke method.	Gabe Black
	Also move the "Fault" reference counted pointer type into a separate file, sim/fault.hh. It would be better to name this less similarly to sim/faults.hh to reduce confusion, but fault.hh matches the name of the type. We could change Fault to FaultPtr to match other pointer types, and then changing the name of the file would make more sense.
2009-04-08	tlb: More fixing of unified TLB	Nathan Binkert

2009-04-08	tlb: Don't separate the TLB classes into an instruction TLB and a data TLB	Gabe Black

2009-02-25	CPU: Implement translateTiming which defers to translateAtomic, and convert ↵	Gabe Black
	the timing simple CPU to use it.
2009-02-25	ISA: Replace the translate functions in the TLBs with translateAtomic.	Gabe Black

2008-02-26	TLB: Make a TLB base class and put a virtual demapPage function in it.	Gabe Black
	--HG-- extra : convert_revision : cc0e62a5a337fd5bf332ad33bed61c0d505a936f
2007-08-30	params: Deprecate old-style constructors; update most SimObject constructors.	Miles Kaufmann
	SimObjects not yet updated: - Process and subclasses - BaseCPU and subclasses The SimObject(const std::string &name) constructor was removed. Subclasses that still rely on that behavior must call the parent initializer as : SimObject(makeParams(name)) --HG-- extra : convert_revision : d6faddde76e7c3361ebdbd0a7b372a40941c12ed
2007-08-28	Address translation: De-templatize the GenericTLB class.	Gabe Black
	--HG-- extra : convert_revision : b605a90a4a1071e39f49085a839fdcd175e09fdb
2007-08-27	Address Translation: Make the Generic TLB only compile in SE mode.	Gabe Black
	--HG-- extra : convert_revision : 7eb9a78480174f754f51f75983ee5a1b31280bd3
2007-08-26	Address translation: Make the page table more flexible.	Gabe Black
	The page table now stores actual page table entries. It is still a templated class here, but this will be corrected in the near future. --HG-- extra : convert_revision : 804dcc6320414c2b3ab76a74a15295bd24e1d13d
2007-08-26	Address Translation: Make SE mode use an actual TLB/MMU for translation like FS.	Gabe Black
	--HG-- extra : convert_revision : a04a30df0b6246e877a1cea35420dbac94b506b1