gem5 - gem5

Age	Commit message (Collapse)	Author
2014-02-09	cpu: simple: Add support for using branch predictors	Andreas Sandberg
	This changesets adds branch predictor support to the BaseSimpleCPU. The simple CPUs normally don't need a branch predictor, however, there are at least two cases where it can be desirable: 1) A simple CPU can be used to warm the branch predictor of an O3 CPU before switching to the slower O3 model. 2) The simple CPU can be used as a quick way of evaluating/debugging new branch predictors since it exposes branch predictor statistics. Limitations: * Since the simple CPU doesn't speculate, only one instruction will be active in the branch predictor at a time (i.e., the branch predictor will never see speculative branches). * The outcome of a branch prediction does not affect the performance of the simple CPU.
2012-11-02	sim: Include object header files in SWIG interfaces	Andreas Sandberg
	When casting objects in the generated SWIG interfaces, SWIG uses classical C-style casts ( (Foo *)bar; ). In some cases, this can degenerate into the equivalent of a reinterpret_cast (mainly if only a forward declaration of the type is available). This usually works for most compilers, but it is known to break if multiple inheritance is used anywhere in the object hierarchy. This patch introduces the cxx_header attribute to Python SimObject definitions, which should be used to specify a header to include in the SWIG interface. The header should include the declaration of the wrapped object. We currently don't enforce header the use of the header attribute, but a warning will be generated for objects that do not use it.
2012-03-09	CheckerCPU: Make CheckerCPU runtime selectable instead of compile selectable	Geoffrey Blake
	Enables the CheckerCPU to be selected at runtime with the --checker option from the configs/example/fs.py and configs/example/se.py configuration files. Also merges with the SE/FS changes.
2012-01-31	CheckerCPU: Re-factor CheckerCPU to be compatible with current gem5	Geoffrey Blake
	Brings the CheckerCPU back to life to allow FS and SE checking of the O3CPU. These changes have only been tested with the ARM ISA. Other ISAs potentially require modification.
2008-08-11	params: Convert the CPU objects to use the auto generated param structs.	Nathan Binkert
	A whole bunch of stuff has been converted to use the new params stuff, but the CPU wasn't one of them. While we're at it, make some things a bit more stylish. Most of the work was done by Gabe, I just cleaned stuff up a bit more at the end.