From: Matthew Garrett <mjg59@srcf.ucam.org>
To: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: PATA failure with piix, works with libata
Date: Sun, 5 Mar 2006 22:57:33 +0000 [thread overview]
Message-ID: <20060305225733.GA8578@srcf.ucam.org> (raw)
In-Reply-To: <20060303183937.GA30840@srcf.ucam.org>
Ok, it /seems/ that things are happier (though still not entirely happy)
if I explicitly acknowledge the interrupt by writing the dma status
register back again. This doesn't seem to be done anywhere in the IDE
interrupt routine, but is in the libata one. I'm afraid I don't
understand IDE well enough to have any idea what's going on here - is it
possible that a piix in native mode (rather than legacy mode) and
sharing an interrupt needs some special handling?
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2006-03-05 22:58 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-03 18:39 PATA failure with piix, works with libata Matthew Garrett
2006-03-04 14:11 ` Alan Cox
2006-03-06 15:12 ` Matthew Garrett
2006-03-05 22:57 ` Matthew Garrett [this message]
2006-03-05 23:40 ` Jeff Garzik
2006-03-06 0:32 ` Matthew Garrett
2006-03-06 0:58 ` Jeff Garzik
2006-03-06 1:03 ` Matthew Garrett
2006-03-06 1:07 ` Jeff Garzik
2006-03-06 13:15 ` Matthew Garrett
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