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Subject: Re: Linux 2.4.21-pre3-ac4
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Ross Biro <rossb@google.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, Alan Cox <alan@redhat.com>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
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On Mon, 2003-01-13 at 20:19, Ross Biro wrote:

> and read the alt status register to get a delay.
> 
> This is technically a spec violation, but it's probably safe.  I'm going 
> to send an email to a couple of the drive manufacturers and see what 
> they think.

Or get back to my original idea of an IOSYNC() callback in hwif. For
standard PCI controllers with DMA, it's enough to read the dma_status
register which is on the same bus path. Others will have to provide
some implementation or be unsafe on some non-x86. What do you think ?

Ben.


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