Andreas Hansson f26a289295 mem: Split port retry for all different packet classes ... 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.		2015-03-02 04:00:35 -05:00
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activity.cc	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
activity.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
buffers.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
cpu.cc	alpha,arm,mips,power,x86,cpu,sim: Cleanup activate/deactivate	2014-09-20 17:18:35 -04:00
cpu.hh	alpha,arm,mips,power,x86,cpu,sim: Cleanup activate/deactivate	2014-09-20 17:18:35 -04:00
decode.cc	arm: Fixes based on UBSan and static analysis	2014-11-14 03:53:51 -05:00
decode.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
dyn_inst.cc	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
dyn_inst.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
exec_context.hh	arch: Make readMiscRegNoEffect const throughout	2015-02-16 03:33:28 -05:00
execute.cc	cpu: Fix memoryIssueLimit checking in Minor	2014-12-02 06:08:13 -05:00
execute.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
fetch1.cc	mem: Split port retry for all different packet classes	2015-03-02 04:00:35 -05:00
fetch1.hh	mem: Split port retry for all different packet classes	2015-03-02 04:00:35 -05:00
fetch2.cc	arm: Fixes based on UBSan and static analysis	2014-11-14 03:53:51 -05:00
fetch2.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
func_unit.cc	arch: Use const StaticInstPtr references where possible	2014-09-27 09:08:36 -04:00
func_unit.hh	arch: Use const StaticInstPtr references where possible	2014-09-27 09:08:36 -04:00
lsq.cc	mem: Split port retry for all different packet classes	2015-03-02 04:00:35 -05:00
lsq.hh	mem: Split port retry for all different packet classes	2015-03-02 04:00:35 -05:00
MinorCPU.py	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
pipe_data.cc	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
pipe_data.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
pipeline.cc	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
pipeline.hh	cpu: Probe points for basic PMU stats	2014-10-16 05:49:41 -04:00
SConscript	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
SConsopts	arch, cpu: Factor out the ExecContext into a proper base class	2014-09-03 07:42:22 -04:00
scoreboard.cc	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
scoreboard.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
stats.cc	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
stats.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00
trace.hh	cpu: `Minor' in-order CPU model	2014-07-23 16:09:04 -05:00