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TS bit explanation

To: linux-origin@xxxxxxxxxxx
Subject: TS bit explanation
From: sprasad@xxxxxxxxxxxxxxxxxxxx (Srinivasa Prasad Thirumalachar)
Date: Tue, 11 Apr 2000 11:09:28 -0700 (PDT)
Sender: owner-linux-origin@xxxxxxxxxxx
Hi,
The final word on TS ....

> It says that this bit is set when tlb is "presented" with an entry
> that is already present and may cause multiple matches. It also
> goes on to say those conflicting entries are invalidated before the
> new entry is inserted. What we dont know is whether TS is sticky.
> We dont know whether it gets cleared after the the r10k 'fixes'
> everything.

In case you still have this TS question....
The R10K "fixes" the other matching entries during the same write operation
which caused them.  Afterwards the TS bit stays set.
If you later do another TLB write which doesn't match any other entry, the TS
bit will be cleared.

Thanks
srinivasa


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