Re: FreeBSD/AVR32 port

From: M. Warner Losh <imp_at_bsdimp.com>
Date: Sun, 10 Aug 2008 13:38:24 -0600 (MDT)
In message: <15037888-362B-43BD-9736-4F7D2C76D762_at_valka.is>
            Arnar Mar Sig <antab_at_valka.is> writes:
: 
: On Aug 10, 2008, at 7:49 AM, Julian Elischer wrote:
: 
: > M. Warner Losh wrote:
: >> In message: <67389BC1-FBD5-4D39-97CA-056FFC3B3B01_at_valka.is>
: >>            Arnar Mar Sig <antab_at_valka.is> writes:
: >> : I have been working on porting FreeBSD to AVR32 for the past  
: >> few  : weeks, and now i have a bootable kernel although there is  
: >> still a lot  : of work to be done.
: >> COOL!  Very COOL!
: >
: > I assume this is the part WITH an MMU you are supporting?
: 
: Yes full MMU. The TLB is managed by software so page table layout can  
: be implemented whatever way one wants. I was going to use the same  
: layout that x86 uses  pd->pt->entry and 4K pages, but i'm open to any  
: suggestions.

This is very similar to how the MIPS ports does things.  Since the TLB
structure of the AVR32 is similar to MIPS, maybe looking at how it
does its thing might be helpful.  Of course, this conclusion was
reached by just glancing a the AVR32 spec some months ago, so some
discretion might be needed :-).

Warner
Received on Sun Aug 10 2008 - 17:40:49 UTC

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