[Intel-gfx] [PATCH] drm/i915/gt: Update PMINTRMSK holding fw

[Andi Shyti]

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 at riseup.net>
> Suggested-by: Francisco Jerez <currojerez at riseup.net>
> Fixes: 35cc7f32c298 ("drm/i915/gt: Use non-forcewake writes for RPS")
> Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> Cc: Francisco Jerez <currojerez at riseup.net>
> Cc: Mika Kuoppala <mika.kuoppala at linux.intel.com>
> Cc: Andi Shyti <andi.shyti at intel.com>
> Cc: <stable at vger.kernel.org> # v5.6+

Reviewed-by: Andi Shyti <andi.shyti at intel.com>

Andi