[Intel-gfx] [PATCH] drm/i915: Skip force-wake for uncached mmio flush of GGTT writes

Chris Wilson chris at chris-wilson.co.uk
Mon Mar 20 13:51:24 UTC 2017


On Mon, Mar 20, 2017 at 12:38:31PM +0200, Mika Kuoppala wrote:
> Chris Wilson <chris at chris-wilson.co.uk> writes:
> 
> > The trick of using an uncached mmio read to ensure that the GGTT writes
> > are flushed does not require us to do the forcewake dance, so avoid it
> > in the hope of reducing the frequency that we do keep the device forced
> > awake.
> >
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>

Applied, thanks.
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre


More information about the Intel-gfx mailing list