Messages in this thread | | | Date | Tue, 14 Nov 2006 20:07:19 -0800 (PST) | Subject | Re: [PATCH] ALSA: hda-intel - Disable MSI support by default | From | David Miller <> |
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From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Wed, 15 Nov 2006 15:01:00 +1100
> Out of curiosity. Are you sure there is no case of stupid bridge > converting the MSI into some APIC/whatever interrupt for the CPU > potentially before all previous DMA have been fully pushed to the > coherent domain (still in some internal store queue for example) ?
That would really suck, wouldn't it :)
However, they have to do all the work of processing the memory transation that the MSI is on the PCI bus, I don't think they would go so far out of their way to reorder things even if they converted the MSI packet into a PIN to the APIC, for example. - 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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