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From: Jiri Slaby <jslaby@suse.cz>
To: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jiri Slaby <jirislaby@gmail.com>,
	Keith Packard <keithp@keithp.com>,
	dri-devel@lists.freedesktop.org,
	LKML <linux-kernel@vger.kernel.org>,
	daniel@ffwll.ch
Subject: Re: i915_driver_irq_handler: irq 42: nobody cared
Date: Fri, 30 Mar 2012 14:11:47 +0200	[thread overview]
Message-ID: <4F75A303.3030409@suse.cz> (raw)
In-Reply-To: <1333104359_155028@CP5-2952>

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



  reply	other threads:[~2012-03-30 12:11 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-03-27  8:40 i915_driver_irq_handler: irq 42: nobody cared Jiri Slaby
2012-03-27  8:42 ` Jiri Slaby
2012-03-30  9:59   ` Jiri Slaby
2012-03-30 10:45     ` Chris Wilson
2012-03-30 12:11       ` Jiri Slaby [this message]
2012-03-30 12:24         ` Chris Wilson
2012-04-06 21:31           ` i915_driver_irq_handler: irq 42: nobody cared [generic IRQ handling broken?] Jiri Slaby
2012-04-06 22:40             ` Thomas Gleixner
2012-04-09 17:12               ` Jesse Barnes
2012-04-09 17:52                 ` Dave Airlie
2012-04-10  8:44               ` Jiri Slaby
2012-04-10  8:50             ` Daniel Vetter
2012-04-10  8:52             ` i915_driver_irq_handler: irq 42: nobody cared Jiri Slaby
2012-04-10 16:50               ` Marcin Slusarz
2012-04-09 17:11       ` Jesse Barnes
2012-04-10  8:47         ` Jiri Slaby
2012-04-10  8:58           ` Daniel Vetter
2012-04-10  9:48             ` Jiri Slaby
2012-04-10 16:26           ` Jesse Barnes
2012-04-10 16:26             ` Jesse Barnes
2012-04-10 18:11             ` Jiri Slaby
2012-04-10 18:34               ` Jesse Barnes
2012-04-10 19:52                 ` Jiri Slaby
2012-04-10 20:32                   ` Daniel Vetter
2012-04-10 20:34                     ` Jesse Barnes
2012-04-10 20:34                       ` Jesse Barnes
2012-04-11 10:40                       ` Daniel Vetter
2012-05-03 19:56                         ` Jiri Slaby
2012-05-03 21:15                           ` Daniel Vetter
2012-05-03 21:15                             ` Daniel Vetter
2012-05-03 21:16                             ` Jiri Slaby
2012-05-03 21:54                               ` Jesse Barnes
2012-05-03 23:15                                 ` Ben Widawsky
2012-05-03 23:15                                   ` Ben Widawsky
2012-04-11  6:29                 ` Michel Dänzer
2012-04-11  6:29                   ` Michel Dänzer
2012-04-11 16:03                   ` Jesse Barnes
2012-03-27  8:57 ` Daniel Vetter
2012-03-27 10:54   ` Jiri Slaby

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