Subject: Re:-pmap initlialization
To: None <email@example.com>
From: Toru Nishimura <firstname.lastname@example.org>
Date: 01/06/2005 11:55:37
Kamal R. Prasad asked;
> I notice that the lubbock code in netbsd sets
> the TLB base addr as 0xa01fc000,
I believe it's the consequence of the way how initarm() prepares
kernel pmap foundation. 2MB - 16KB, bingo.
> but isn't TLB
> base addr something that points to the hardware cache?
- yes, ARM cache is "virtually address indexed, virtual address tagged."
- no, it does not. MMU hardware pulls up TLB data with physical address.
So, they are never under control of processor cache.
Toru Nishimura/ALKYL Technology