gem5 - gem5

Age	Commit message (Collapse)	Author
2016-11-09	style: [patch 1/22] use /r/3648/ to reorganize includes	Brandon Potter

2016-05-26	mem: Fix MemChecker unique_ptr type mismatch	Andreas Hansson
	This patch fixes the type of the unique_ptr instances, to ensure that the data that is allocated with new[] is also deleted with delete[]. The issue was highlighted by ASAN. Change-Id: I2c5510424959d862a9954d83e728d901bb18d309 Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com> Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-by: Stephan Diestelhorst <stephan.diestelhorst@arm.com>
2015-12-31	mem: Make cache terminology easier to understand	Andreas Hansson
	This patch changes the name of a bunch of packet flags and MSHR member functions and variables to make the coherency protocol easier to understand. In addition the patch adds and updates lots of descriptions, explicitly spelling out assumptions. The following name changes are made: * the packet memInhibit flag is renamed to cacheResponding * the packet sharedAsserted flag is renamed to hasSharers * the packet NeedsExclusive attribute is renamed to NeedsWritable * the packet isSupplyExclusive is renamed responderHadWritable * the MSHR pendingDirty is renamed to pendingModified The cache states, Modified, Owned, Exclusive, Shared are also called out in the cache and MSHR code to make it easier to understand.
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.
2014-12-23	mem: Add MemChecker and MemCheckerMonitor	Marco Elver
	This patch adds the MemChecker and MemCheckerMonitor classes. While MemChecker can be integrated anywhere in the system and is independent, the most convenient usage is through the MemCheckerMonitor -- this however, puts limitations on where the MemChecker is able to observe read/write transactions.