From: David Gibson <david@gibson.dropbear.id.au>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Dan Malek <dan@embeddededge.com>,
Paul Mackerras <paulus@samba.org>,
linuxppc-embedded@lists.linuxppc.org
Subject: Re: More details on the telnet with CONFIG_PIN_TLB problems
Date: Thu, 6 Jun 2002 17:52:47 +1000 [thread overview]
Message-ID: <20020606075247.GX2630@zax> (raw)
In-Reply-To: <20020605221542.31000@smtp.wanadoo.fr>
On Thu, Jun 06, 2002 at 12:15:42AM +0200, Benjamin Herrenschmidt wrote:
>
> >flush_instruction_cache() is already an iccci on 4xx (iccci flushes
> >the entire ICU). flush_dcache_icache() should be fixed though. We
> >could either replace the entire icache flushing loop with a single
> >iccci, or we could replace each icbi with two icbis, on the address
> >and the address XORed with 0x00001000 (which is the only possible
> >alias with 4kb pages).
>
> Provided that address ^ 0x1000 is mapped or we do that with
> translation off (but then we must get to the physical address
> of the first page).
Blah. Good point.
> Looks simpler to do an iccci.
Agreed.
--
David Gibson | For every complex problem there is a
david@gibson.dropbear.id.au | solution which is simple, neat and
| wrong. -- H.L. Mencken
http://www.ozlabs.org/people/dgibson
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
prev parent reply other threads:[~2002-06-06 7:52 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-03 7:53 More details on the telnet with CONFIG_PIN_TLB problems David Gibson
2002-06-04 12:54 ` Paul Mackerras
2002-06-04 14:39 ` David Gibson
2002-06-04 16:57 ` Matt Porter
2002-06-05 0:02 ` David Gibson
2002-06-05 0:34 ` Matt Porter
2002-06-04 17:04 ` Dan Malek
2002-06-04 16:43 ` Benjamin Herrenschmidt
2002-06-05 3:22 ` David Gibson
2002-06-04 19:31 ` benh
2002-06-06 1:42 ` David Gibson
2002-06-05 22:15 ` Benjamin Herrenschmidt
2002-06-06 7:52 ` David Gibson [this message]
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