[Bug 87347] [BSW]175 igt/kms_flip cases and 41 igt/pm_rpm cases sporadically cause: "*ERROR* The master control interrupt lied (PM)!"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87347

lu hua <huax.lu at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |NEW

--- Comment #7 from lu hua <huax.lu at intel.com> ---
(In reply to Imre Deak from comment #6)
> Created attachment 114483 [details] [review]
> avoid spurious PM interrupts
> 
> Could you try the attached patch?

Test this patch, run ./pm_rpm --run-subtest cursor 10 cycles and ./kms_flip
--run-subtest vblank-vs-modeset-rpm-interruptible 10 cycles. This error goes
away.

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