linux-kernel - Re: i915_driver_irq_handler: irq 42: nobody cared

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Message-ID: <1333104359_155028@CP5-2952>
Date:	Fri, 30 Mar 2012 11:45:43 +0100
From:	Chris Wilson <chris@...is-wilson.co.uk>
To:	Jiri Slaby <jslaby@...e.cz>, Jiri Slaby <jirislaby@...il.com>
Cc:	Keith Packard <keithp@...thp.com>, dri-devel@...ts.freedesktop.org,
	LKML <linux-kernel@...r.kernel.org>, daniel@...ll.ch
Subject: Re: i915_driver_irq_handler: irq 42: nobody cared

On Fri, 30 Mar 2012 11:59:28 +0200, Jiri Slaby <jslaby@...e.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.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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