[PATCH] drm/radeon: Always flush VM again on < CIK

Michel Dänzer michel at daenzer.net
Thu Aug 7 19:38:55 PDT 2014

On 08.08.2014 00:55, Alex Deucher wrote:
> Note that there is no PFP (or CE) on the compute queues so we can't
> use PFP (or CE) for compute.

AFAICT cik_hdp_flush_cp_ring_emit() always uses the PFP though.

> Note also that the engine bit is not always consistent (for some packets 0
> = ME, 1 = PFP and for others 1= ME and 0 = PFP).

Ugh. Then we should probably use explicit *_ENGINE_PFP/ME macros instead
of *_ENGINE(lucky_number). :)

>> On Thu, Aug 7, 2014 at 3:59 PM, Alex Deucher <alexdeucher at gmail.com> wrote:
>>> We should be using PFP as much as possible.  Does the attached patch help?

Unfortunately not.

Earthling Michel Dänzer            |                  http://www.amd.com
Libre software enthusiast          |                Mesa and X developer

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