Messages in this thread | | | Date | Sun, 05 Mar 2006 19:58:09 -0500 | From | Jeff Garzik <> | Subject | Re: PATA failure with piix, works with libata |
| |
Matthew Garrett wrote: > 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?
This is more a piix-specific behavior than an arch-specific behavior.
Jeff
- 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/
| |