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

Daniel Vetter daniel at ffwll.ch
Fri Oct 23 02:23:12 PDT 2015

On Fri, Oct 23, 2015 at 12:21:37PM +0300, Jani Nikula wrote:
> On Fri, 23 Oct 2015, Chris Wilson <chris at chris-wilson.co.uk> 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.
> Except this one is a regression, introduced by a bisected commit, and
> suspiciously the errors pop up during aux transfers.

dp aux is a red herring very likely, since it's just the source of a _lot_
of sde interrupts.

> https://bugs.freedesktop.org/show_bug.cgi?id=92084

No one demonstrated any bad side-effects of this, let's shut it up (but
keep the breadcrumb in debug logs in case) and move on to other bugs. We
have enough.
Daniel Vetter
Software Engineer, Intel Corporation

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