Messages in this thread | | | Date | Wed, 13 Dec 2017 12:35:54 +0100 (CET) | From | Thomas Gleixner <> | Subject | RE: [Intel-gfx] [PATCH] drm/i915: Remove unused IRQ chip data of HDMI LPE audio |
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On Wed, 13 Dec 2017, Anand, Jerome wrote: > > -----Original Message----- > > From: Thomas Gleixner [mailto:tglx@linutronix.de] > > Sent: Tuesday, December 12, 2017 10:37 PM > > To: Anand, Jerome <jerome.anand@intel.com> > > Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>; Chen, Augustine > > <augustine.chen@intel.com>; intel-gfx@lists.freedesktop.org; alsa-devel@alsa- > > project.org; Bossart, Pierre-louis <pierre-louis.bossart@intel.com>; > > tiwai@suse.de; Ingo Molnar <mingo@redhat.com>; H. Peter Anvin > > <hpa@zytor.com>; Jiang Liu <jiang.liu@linux.intel.com>; Juergen Gross > > <jgross@suse.com>; Dou Liyang <douly.fnst@cn.fujitsu.com>; linux- > > kernel@vger.kernel.org > > Subject: RE: [Intel-gfx] [PATCH] drm/i915: Remove unused IRQ chip data of > > HDMI LPE audio
Can you please fix your mail client NOT to replicate the full mail header. That's just annoying.
> > On Mon, 11 Dec 2017, Anand, Jerome wrote: > > > > On Fri, 8 Dec 2017, Ville Syrjälä wrote: > > > > > > > > > On Fri, Dec 08, 2017 at 05:33:23PM +0800, Augustine.Chen wrote: > > > > > > The chip data of HDMI LPE audio is set to drm_i915_private which > > > > > > is not consistent with the expectation by x86 APIC driver. > > > > > > > > > > Hmm. Why is the apic code looking at data for an irq chip it > > > > > hasn't created? > > > > > > > > > > > apic code expects an irq domain to be place as generic approach. > > > > APIC code does not even see that interrupt at all. It's completely disconnected. > > > > That's the problem - APIC just converts the chip data to its internal > format and fails.
How does APIC code end up to touch that interrupt at all? Call stack please.
And please enable CONFIG_GENERIC_IRQ_DEBUGFS and provide the output of
cat /sys/kernel/debug/irq/irqs/$N
where N is the interrupt number of that thing.
Thanks,
tglx | |