[Bug 93640] [BAT SNB regression] Fifo underruns since CI_DRM_952

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93640

Matt Roper <matthew.d.roper at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED
      i915 platform|                            |IVB, SNB, ILK

--- Comment #3 from Matt Roper <matthew.d.roper at intel.com> ---
My above patch/comment was actually intended for bug 93666; disregard for this
defect since it likely isn't related to underruns.

If I'm reading the CI details correctly, it's not just SNB that gets the
underruns, but also ILK and IVB.  However HSW/BDW, which use pretty much the
same watermark logic and code, are fine.  I'll take a look to see if I can
figure out the source of the problems.  Unfortunately I don't have any of these
platforms at the moment so debugging is somewhat challenging.

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