Hi,
I am not sure I follow.
If you have a look at the wiki, you see that gem5 supports three different port
access methods: functional, atomic, and timing. This corresponds to TLM-2.0’s
debug, b_transport and nb_transport. Functional is used for initialisation and
debug, and atomic/timing are mutually exclusive and used during the actual
simulation run. Each memory object has to implement all three.
Andreas
From: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>"
<[email protected]<mailto:[email protected]>>, gem5 users mailing
list <[email protected]<mailto:[email protected]>>
Date: Friday, 28 March 2014 05:42
To: gem5-users <[email protected]<mailto:[email protected]>>
Subject: [gem5-users] A Question on recvFunctional() and recvTiming() in DRAM
class
Hello! I'am studying the file src/mem/simple_dram.cc and confused by the
functional and timing access.
It seems that the functional access recvFunctional() is called first during
which a memcpy() accesses data in DRAM; then the timing one recvTiming() is
called to calculate latency.
While each timing access is preceded by a functional access, the first hundreds
of functional accesses at Tick 0 are not followed by timing accesses. I am
confused by the memory access calling methods. Could anyone give me a hint on
that?
Thanks for your assistance.
--------------------------------
Department of Microelectronics and Nanoelectronics in Tsinghua University
Class 02 Li Jiakun
-- IMPORTANT NOTICE: The contents of this email and any attachments are
confidential and may also be privileged. If you are not the intended recipient,
please notify the sender immediately and do not disclose the contents to any
other person, use it for any purpose, or store or copy the information in any
medium. Thank you.
ARM Limited, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ, Registered
in England & Wales, Company No: 2557590
ARM Holdings plc, Registered office 110 Fulbourn Road, Cambridge CB1 9NJ,
Registered in England & Wales, Company No: 2548782
_______________________________________________
gem5-users mailing list
[email protected]
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
