On Fri, Nov 25, 2016 at 12:57:01PM +0200, Imre Deak wrote:
> commit 848496e5902833600f7992f4faa82dc1546051ba
> Author: Ville Syrjälä <[email protected]>
> Date:   Wed Jul 13 16:32:03 2016 +0300
> 
>     drm/i915: Wait up to 3ms for the pcu to ack the cdclk change request on 
> SKL
> 
> increased the timeout to match the spec, but we still see a timeout on
> at least one SKL. A CDCLK change request following the failed one will
> succeed nevertheless, so let's try to increase the timeout to 10ms.
> 
> v2:
> - Use 1ms poll period instead of 10us. (Chris)
> 
> Cc: Ville Syrjälä <[email protected]>
> Cc: Chris Wilson <[email protected]>
> Reference: https://bugs.freedesktop.org/show_bug.cgi?id=97929
> Signed-off-by: Imre Deak <[email protected]>

If you are happy with it, so am I!
Reviewed-by: Chris Wilson <[email protected]>

Possibly time to volunteer someone to look at the poll interval again.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre
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