[Bug 87180] [SNB+ Regression]igt/pm_rpm/legacy-planes causes drivers/gpu/drm/i915/intel_uncore.c:47 assert_device_not_suspended+0x45/0x5b

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=87180

Paulo Zanoni <przanoni at gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEEDINFO                    |ASSIGNED
           Assignee|intel-gfx-bugs at lists.freede |matthew.d.roper at intel.com
                   |sktop.org                   |

--- Comment #2 from Paulo Zanoni <przanoni at gmail.com> ---
Ok, so I got curious why this was not "caught" by PRTS so I decided to bisect
it myself.

Apparently, what happened is:
- The test was PASSing
- Then some commit made it execute BUG()
- Then some commit fixed the BUG(), but started giving us WARN()s.

Apparently the first bad commit is:

6beb8c23ebcc3d3287d8a247d11b73d7d0eaa475
drm/i915: Consolidate plane 'prepare' functions (v2)

Matt, can you please take a look at this?

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