From: Dan Malek <dan@embeddededge.com>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Joakim Tjernlund <Joakim.Tjernlund@lumentis.se>,
linuxppc-embedded@ozlabs.org
Subject: Re: 8xx v2.6 TLB problems and suggested workaround
Date: Sat, 9 Apr 2005 01:16:50 -0400 [thread overview]
Message-ID: <86e2fa4b5afe5bd8afc33ca47a7ab50c@embeddededge.com> (raw)
In-Reply-To: <20050408110724.GG19449@logos.cnet>
On Apr 8, 2005, at 7:07 AM, Marcelo Tosatti wrote:
> 1) _tlbie() on update_mmu_cache() surrounded by CONFIG_8xx #ifdef
> Did you give up about it?
I think a tlbia() of the vaddr should work here. No sense blowing
away the whole TLB cache for this.
> What else you think can be done?
It would be interesting to change __flush_dcache_icache()
to use the 8xx SPR cache operations instead of the dcbst instruction.
I wouldn't be surprised if it worked differently, but I'd not be
able to explain it :-)
Thanks.
-- Dan
next prev parent reply other threads:[~2005-04-09 5:17 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-04-05 21:51 8xx v2.6 TLB problems and suggested workaround Joakim Tjernlund
2005-04-06 12:16 ` Marcelo Tosatti
2005-04-06 21:24 ` Joakim Tjernlund
2005-04-07 12:00 ` Marcelo Tosatti
2005-04-07 20:35 ` Joakim Tjernlund
2005-04-07 19:38 ` Marcelo Tosatti
2005-04-08 2:09 ` Dan Malek
2005-04-08 11:07 ` Marcelo Tosatti
2005-04-09 5:16 ` Dan Malek [this message]
2005-04-09 19:03 ` Joakim Tjernlund
2005-04-09 22:37 ` Marcelo Tosatti
2005-04-10 10:08 ` Joakim Tjernlund
2005-04-22 17:14 ` Marcelo Tosatti
2005-04-23 21:55 ` Dan Malek
2005-04-23 22:07 ` Joakim Tjernlund
2005-04-23 22:23 ` Dan Malek
2005-04-08 8:01 ` Joakim Tjernlund
2005-04-08 13:39 ` Dan Malek
2005-04-08 14:29 ` Joakim Tjernlund
-- strict thread matches above, loose matches on Subject: below --
2005-04-04 19:17 Marcelo Tosatti
2005-04-04 20:09 ` Marcelo Tosatti
2005-04-05 7:08 ` Pantelis Antoniou
2005-04-05 1:11 ` Kumar Gala
2005-04-05 15:58 ` Dan Malek
2005-04-05 11:41 ` Marcelo Tosatti
2005-04-05 20:26 ` Marcelo Tosatti
2005-04-06 6:00 ` Pantelis Antoniou
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