Messages in this thread | | | Date | Mon, 6 Mar 2006 00:32:22 +0000 | From | Matthew Garrett <> | Subject | Re: PATA failure with piix, works with libata |
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On Sun, Mar 05, 2006 at 06:40:58PM -0500, Jeff Garzik wrote: > Matthew Garrett wrote: > >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? > > ICH definitely needs that irq ack...
Yeah, this is an ICH7. I can't find anything in drivers/ide that would result in it being done, which is why I'm kind of confused. ide_ack_intr seems to be defined to do nothing on x86 since IDE_ARCH_ACK_INTR isn't defined there?
-- Matthew Garrett | mjg59@srcf.ucam.org - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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