On 03/30/2012 12:45 PM, Chris Wilson wrote:
On Fri, 30 Mar 2012 11:59:28 +0200, Jiri Slaby jslaby@suse.cz wrote:
I don't know what to dump more, because iir is obviously zero too. What other sources of interrupts are on the (G33) chip?
IIR is the master interrupt, with chained secondary interrupt statuses. If IIR is 0, the interrupt wasn't raised by the GPU.
This does not make sense, the handler does something different. Even if IIR is 0, it still takes a look at pipe stats.
And this is MSI, so there can be no other source of the interrupt. (Except broken IRQ routing.) I may try to boot with MSIs off if you think it's important.
thanks, -- js suse labs