From: Sergei Shtylyov <sshtylyov@ru.mvista.com>
To: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: linux-ide@vger.kernel.org
Subject: Re: [PATCH 2/11] it8213/piix/slc90e66: remove {it8213,piix,slc90e66}_dma_2_pio()
Date: Fri, 10 Aug 2007 20:44:45 +0400 [thread overview]
Message-ID: <46BC95FD.20104@ru.mvista.com> (raw)
In-Reply-To: <200708092140.22179.bzolnier@gmail.com>
Bartlomiej Zolnierkiewicz wrote:
>>>Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
>> Sigh... when I was talking about getting rid of that function, I meant
>>that we need to also decouple UltraDMA from PIO -- which is what this patch
>>misses...
> Addressed in the follow-up patch.
That's good, thanks. :-)
>> Actually, I intended to decouple DMA form PIO in this drivers completely
>>but that would be a next step...
> DMA and PIO timings are shared on these controllers (except when DTE bit is
> set, then PIO0 timings are always used and DMA timings are independent)...?
Yeah, but one do not need to toggle IORDY/prefetch enables for DMA modes --
actually, this is a buglet -- despite what Intel's manuals say...
> Bart
MBR, Sergei
next prev parent reply other threads:[~2007-08-10 16:42 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-04 20:06 [PATCH 2/11] it8213/piix/slc90e66: remove {it8213,piix,slc90e66}_dma_2_pio() Bartlomiej Zolnierkiewicz
2007-08-05 15:55 ` Sergei Shtylyov
2007-08-09 19:40 ` Bartlomiej Zolnierkiewicz
2007-08-10 16:44 ` Sergei Shtylyov [this message]
2007-08-10 18:54 ` Sergei Shtylyov
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