Bugs item #1580064, was opened at 2006-10-18 14:08
Message generated for change (Comment added) made by adsharma
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Category: None
Group: None
Status: Open
Resolution: None
Priority: 5
Submitted By: Arun Sharma (adsharma)
Assigned to: Nobody/Anonymous (nobody)
Summary: core event: EXT_SNOOP
Initial Comment:
opcontrol --list-events shows:
EXT_SNOOP: (counter: all)
External snoops (min count: 500)
Unit masks (default 0x3)
----------
0x00: bus: this agent
0x10: bus: include all agents
0x01: snoop: CMP2I snoops
0x02: snoop: CMP2S snoops
CMP2I seems to make no sense for this event. The
documentation (Table 18-11 vol3b) specifies a different
set of unit masks.
0x80: HITM
0x20: HIT
0x10: CLEAN
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>Comment By: Arun Sharma (adsharma)
Date: 2006-10-18 15:36
Message:
Logged In: YES
user_id=100877
I noticed that the unit masks are shifted by 8 in the
EVTSELx MSRs. So the correct unit masks should be:
0x08: snoop: HITM snoops
0x02: snoop: HIT snoops
0x01: snoop: CLEAN snoops
----------------------------------------------------------------------
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