[Intel-gfx] [PATCH 2/2] drm/i915: shut up gen8+ SDE irq dmesg noise

Daniel Vetter daniel at ffwll.ch
Fri Oct 23 02:14:41 PDT 2015

On Fri, Oct 23, 2015 at 10:03:50AM +0100, Chris Wilson wrote:
> On Fri, Oct 23, 2015 at 10:56:12AM +0200, Daniel Vetter wrote:
> > We get tons of cases where the master interrupt handler apparently set
> > a bit, with the SDEIIR agreeing. No idea what's going on there, but
> > it's consistent on gen8+, no one seems to care about it and it's
> > making CI results flaky.
> Just delete the message and delete them all. There isn't anything we can
> do and if anybody actually cared (which apparently they didn't in the
> first place), they could just trace the mmio.

The non-SDE ones don't fire and I think are useful. And in case we have
another report from users that gmbus is not reliably working with their
touchpad (this is how we discovered the original pch irq issues) I think
finding some breadcrumbs in dmesg would be useful. The SDE one happens
rarely enough that I don't think it should be a performance issue, ever.

Hence why I decided to keep them.
Daniel Vetter
Software Engineer, Intel Corporation

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