gem5 - gem5

Age	Commit message (Collapse)	Author
2016-11-09	style: [patch 3/22] reduce include dependencies in some headers	Brandon Potter
	Used cppclean to help identify useless includes and removed them. This involved erroneously included headers, but also cases where forward declarations could have been used rather than a full include.
2016-11-09	style: [patch 1/22] use /r/3648/ to reorganize includes	Brandon Potter

2015-03-02	mem: Split port retry for all different packet classes	Andreas Hansson
	This patch fixes a long-standing isue with the port flow control. Before this patch the retry mechanism was shared between all different packet classes. As a result, a snoop response could get stuck behind a request waiting for a retry, even if the send/recv functions were split. This caused message-dependent deadlocks in stress-test scenarios. The patch splits the retry into one per packet (message) class. Thus, sendTimingReq has a corresponding recvReqRetry, sendTimingResp has recvRespRetry etc. Most of the changes to the code involve simply clarifying what type of request a specific object was accepting. The biggest change in functionality is in the cache downstream packet queue, facing the memory. This queue was shared by requests and snoop responses, and it is now split into two queues, each with their own flow control, but the same physical MasterPort. These changes fixes the previously seen deadlocks.
2015-02-11	mem: Clarification of packet crossbar timings	Marco Balboni
	This patch clarifies the packet timings annotated when going through a crossbar. The old 'firstWordDelay' is replaced by 'headerDelay' that represents the delay associated to the delivery of the header of the packet. The old 'lastWordDelay' is replaced by 'payloadDelay' that represents the delay needed to processing the payload of the packet. For now the uses and values remain identical. However, going forward the payloadDelay will be additive, and not include the headerDelay. Follow-on patches will make the headerDelay capture the pipeline latency incurred in the crossbar, whereas the payloadDelay will capture the additional serialisation delay.
2014-12-02	mem: Add const getters for write packet data	Andreas Hansson
	This patch takes a first step in tightening up how we use the data pointer in write packets. A const getter is added for the pointer itself (getConstPtr), and a number of member functions are also made const accordingly. In a range of places throughout the memory system the new member is used. The patch also removes the unused isReadWrite function.
2014-11-24	misc: Another round of static analysis fixups	Andreas Hansson
	Mostly addressing uninitialised members.
2014-10-16	mem: Add ExternalMaster and ExternalSlave ports	Andrew Bardsley
	This patch adds two MemoryObject's: ExternalMaster and ExternalSlave. Each object has a single port which can be bound to an externally- provided bridge to a port of another simulation system at initialisation.