Hello
>> If the answer to the above question is yes, then why even have that
>> attribute for the class?
Looking in more detail, CHI_HNFController is derived from CHI_Cache_Controller
class.
The CHI_Cache_Controller class is used to derive the CHI_L1Controller and
CHI_L2Controller class objects. In these cases the number_of_snoop_TBEs
attribute is used to handle the number of snoop requests the respective cache
controller can receive.
Best regards
J.Osmany
From: Javed Osmany
Sent: 05 October 2021 16:33
To: gem5-users@gem5.org
Cc: Javed Osmany <javed.osm...@huawei.com>
Subject: CHI_config.py
Hello
In CHI_config.py, for the class CHI_HNFController we have
class CHI_HNFController(CHI_Cache_controller):
:
:
# Some reasonable default TBE params
self.number_of_TBEs = 32
self.number_of_repl_TBEs = 32
self.number_of_snoop_TBEs = 1 # should not receive any snoop
self.unify_repl_TBEs = False
:
The number_of_snoop_TBEs is set to 1 with the corresponding comment.
This seems to indicate that the number_of_snoop_TBEs can be left at 1 since the
CHI_HNFController should not receive any snoop requests.
Is this because a RNF coherence request which gets a hit in the directory will
generate a snoop request to one or more other RNFs which may be holding a copy
of the cache line?
If the answer to the above question is yes, then why even have that attribute
for the class?
Thanks in advance
J.Osmany
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