Subject: Re: bumping ASID
To: None <port-mips@netbsd.org>
From: Jason R Thorpe <thorpej@zembu.com>
List: port-mips
Date: 03/27/2000 17:02:20
On Tue, Mar 28, 2000 at 09:39:49AM +0900, Toru Nishimura wrote:

 > I have a question about how ASID (== TLBpid, ASN) should be managed.
 > Should kernel_pmap() be immune to bump ASID by pmap_asid_alloc()? (see
 > mips/mips/pmap.c)

Look at how its done in NetBSD/alpha.  Kernel mappings are all Global,
so the ASID doesn't apply.  In NetBSD/alpha, I think I made the kernel
use a "reserved" ASN (the Alpha name for ASID) which also meant "invalid"
for user pmaps.

-- 
        -- Jason R. Thorpe <thorpej@zembu.com>