From: Ross Biro <rossb@google.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Alan Cox <alan@redhat.com>, Alan Cox <alan@lxorguk.ukuu.org.uk>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Linux 2.4.21-pre3-ac4
Date: Tue, 14 Jan 2003 09:49:10 -0800 [thread overview]
Message-ID: <3E244D96.4040008@google.com> (raw)
In-Reply-To: 1042565893.587.66.camel@zion.wanadoo.fr
Benjamin Herrenschmidt wrote:
>Ok, but PIIX runs on intel platforms with real IOs, so there is no need
>to perform a read... If we go the hwif->IOSYNC() way, we might well set
>it up to no-op on x86 PIO iops by default and read of alt-status on
>other archs if it's safe enough on other controllers/drives...
>
I believe that this will corrupt any inprogress UDMA transfer on the
promise 20265 chip and probably others. It would be better to read the
dma registers for the Promise controllers.
Ross
next prev parent reply other threads:[~2003-01-14 17:41 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-01-12 18:07 Linux 2.4.21-pre3-ac4 Alan Cox
2003-01-12 19:29 ` Benjamin Herrenschmidt
[not found] ` <1042403235.16288.14.camel@irongate.swansea.linux.org.uk>
2003-01-12 19:51 ` Benjamin Herrenschmidt
2003-01-12 19:57 ` Benjamin Herrenschmidt
2003-01-12 20:51 ` Alan Cox
2003-01-13 16:56 ` Benjamin Herrenschmidt
2003-01-12 20:40 ` Alan Cox
2003-01-12 20:02 ` Benjamin Herrenschmidt
2003-01-13 18:49 ` Ross Biro
2003-01-13 19:03 ` Benjamin Herrenschmidt
2003-01-13 19:19 ` Ross Biro
2003-01-13 19:32 ` Ross Biro
2003-01-13 21:05 ` Alan Cox
2003-01-13 20:36 ` Ross Biro
2003-01-13 19:46 ` Alan Cox
2003-01-14 17:38 ` Benjamin Herrenschmidt
2003-01-14 17:49 ` Ross Biro [this message]
2003-01-14 17:52 ` Benjamin Herrenschmidt
2003-01-14 21:17 ` Andre Hedrick
2003-01-15 0:23 ` Benjamin Herrenschmidt
2003-01-15 5:07 ` Andre Hedrick
[not found] ` <1043105473.12609.5.camel@dhcp22.swansea.linux.org.uk>
2003-01-21 17:07 ` Benjamin Herrenschmidt
2003-01-13 20:56 ` Benjamin Herrenschmidt
2003-01-13 21:36 ` Ross Biro
2003-01-14 1:35 ` Ross Biro
2003-01-14 1:44 ` Andre Hedrick
2003-01-14 9:18 ` Benjamin Herrenschmidt
2003-01-20 6:13 ` Alan Cox
2003-01-13 19:34 ` John Alvord
2003-01-13 19:48 ` Ross Biro
2003-01-13 21:24 ` Jeff Garzik
2003-01-13 21:40 ` Richard B. Johnson
2003-01-13 22:02 ` Benjamin Herrenschmidt
2003-01-13 22:07 ` Benjamin Herrenschmidt
2003-01-14 1:20 ` Richard B. Johnson
2003-01-14 9:06 ` Benjamin Herrenschmidt
2003-01-14 14:04 ` Richard B. Johnson
2003-01-14 14:35 ` Benjamin Herrenschmidt
2003-01-21 11:15 ` Linux 2.4.21-pre3-ac4 [PATCH] Paul Gortmaker
2003-01-21 13:21 ` Hugh Dickins
2003-01-21 11:46 ` small patch for Via Pro 266T agp-support Jurriaan
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