[Bug 89055] [SKL APL] WARN_ON(!wm_changed) hit in the WM code with multiple pipes enabled

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89055

--- Comment #48 from Matt Roper <matthew.d.roper at intel.com> ---
Note that the series linked above is fully reviewed now, but we probably want
to hold off on merging it until one more issue is fixed.  Apparently some BIOS
can setup an unusual/unexpected initial DDB allocation that causes us problems
when we try to inherit it and use it for subsequent watermark calculations. 
See

  https://lists.freedesktop.org/archives/intel-gfx/2016-April/093739.html

for details.

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