Hi Chris,
On Wed, Apr 15, 2020 at 08:50:18AM +0100, Chris Wilson wrote:
> If we use a non-forcewaked write to PMINTRMSK, it does not take effect
> until much later, if at all, causing a loss of RPS interrupts and no GPU
> reclocking, leaving the GPU running at the wrong frequency for long
> periods of time.
>
> Reported-by: Francisco Jerez <currojerez@xxxxxxxxxx>
> Suggested-by: Francisco Jerez <currojerez@xxxxxxxxxx>
> Fixes: 35cc7f32c298 ("drm/i915/gt: Use non-forcewake writes for RPS")
> Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
> Cc: Francisco Jerez <currojerez@xxxxxxxxxx>
> Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
> Cc: Andi Shyti <andi.shyti@xxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx> # v5.6+
Reviewed-by: Andi Shyti <andi.shyti@xxxxxxxxx>
Andi
