[Bug 93698] [BAT BYT regression] WARNING "Unclaimed register detected before reading register 0x186500"

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93698

Mika Kuoppala <mika.kuoppala at intel.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |ville.syrjala at linux.intel.c
                   |                            |om

--- Comment #3 from Mika Kuoppala <mika.kuoppala at intel.com> ---
This unclaimed has always been there, it is just that we enabled
the debugs for byt/bsw too, which brought this to surface.

If you look closely there is identical trace with bsw, but with
different testcase: igt at kms_pipe_crc_basic@read-crc-pipe-c-frame-sequence

I have verified that indeed the power wells are all off when
we set the memory_cxsr, from intel_pre_plane_update().

Ville knows about this and according to him this is a real
problem with atomic commit in how/where intel_pre_plane_update() is called.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20160113/d504fa61/attachment.html>