gem5 - gem5

Age	Commit message (Collapse)	Author
2014-12-02	mem: Remove redundant Packet::allocate calls	Andreas Hansson
	This patch cleans up the packet memory allocation confusion. The data is always allocated at the requesting side, when a packet is created (or copied), and there is never a need for any device to allocate any space if it is merely responding to a paket. This behaviour is in line with how SystemC and TLM works as well, thus increasing interoperability, and matching established conventions. The redundant calls to Packet::allocate are removed, and the checks in the function are tightened up to make sure data is only ever allocated once. There are still some oddities in the packet copy constructor where we copy the data pointer if it is static (without ownership), and allocate new space if the data is dynamic (with ownership). The latter is being worked on further in a follow-on patch.
2014-05-09	arm: quick hack to allow a greater number of CPUs to a guest OS	Matt Evans
	This is a quick hack to communicate a greater number of CPUs to a guest OS via the ARM A9 SCU config register. Some OSes (Linux) just look at the bottom field to count CPUs and with a small change can look at bits [3:0] to learn about up to 16 CPUs. Very much unsupported (and contains warning messages as such) but useful for running 8 core sims without hardwiring CPU count in the guest OS.
2013-07-11	dev: make BasicPioDevice take size in constructor	Steve Reinhardt
	Instead of relying on derived classes explicitly assigning to the BasicPioDevice pioSize field, require them to pass a size value in to the constructor. Committed by: Nilay Vaish <nilay@cs.wisc.edu>
2011-05-04	ARM: Add snoop control unit device.	Ali Saidi