[Intel-gfx] 5.14-rc2 warnings with kvmgvt

[Lucas De Marchi]

On Thu, Jul 22, 2021 at 08:20:34AM +0100, Christoph Hellwig wrote:
>On Thu, Jul 22, 2021 at 01:55:23AM -0400, Lucas De Marchi wrote:
>> humn... PORT_F. KBL doesn't have PORT_F. We decided to keep the handling
>> of DISPLAY_VER == 10 and DISPLAY_VER == 9 together and trust the VBT,
>> but when the VBT is not present, DDI F will get added unconditio.
>>
>> maybe best thing to do is to split that
>
>With this and the previous patch the stack traces are gone.

maybe not the perfect fix though... can you share how you're starting
qemu so I can try to reproduce it? I'd like to see a log with
drm.debug=0xe param.

In theory 5a9d38b20a5a ("drm/i915/display: hide workaround for broken vbt in intel_bios.c")
should filter out the PORT_F in KBL.


thanks
Lucas De Marchi