[Intel-gfx] [PATCH] drm/i915/mtl: Update Wa_22018931422

[Matt Roper]

On Thu, Nov 16, 2023 at 01:46:25PM -0800, Matt Roper wrote:
> On Thu, Nov 16, 2023 at 01:25:11PM -0800, Radhakrishna Sripada wrote:
> > Commit 78cc55e0b64c ("drm/i915/mcr: Hold GT forcewake during steering operations")
> > introduced the workaround which was in early stages. With a valid
> > lineage number update Workaround for future tracking.
> > 
> > Cc: Matt Roper <matthew.d.roper at intel.com>
> > Signed-off-by: Radhakrishna Sripada <radhakrishna.sripada at intel.com>
> 
> Reviewed-by: Matt Roper <matthew.d.roper at intel.com>
> 
> In case anyone is checking, the entries in the workaround database still
> aren't 100% updated yet, but we've been working directly with the
> hardware engineers on this one, so we know this is the correct lineage
> number and that it is indeed needed on the MTL and ARL platforms that
> this code will execute on.

Line-wrapped the commit message to appease checkpatch and applied to
drm-intel-gt-next.  Thanks for the patch.


Matt

> 
> 
> Matt
> 
> > ---
> >  drivers/gpu/drm/i915/gt/intel_gt_mcr.c | 3 +--
> >  1 file changed, 1 insertion(+), 2 deletions(-)
> > 
> > diff --git a/drivers/gpu/drm/i915/gt/intel_gt_mcr.c b/drivers/gpu/drm/i915/gt/intel_gt_mcr.c
> > index 34913912d8ae..e253750a51c5 100644
> > --- a/drivers/gpu/drm/i915/gt/intel_gt_mcr.c
> > +++ b/drivers/gpu/drm/i915/gt/intel_gt_mcr.c
> > @@ -388,8 +388,7 @@ void intel_gt_mcr_lock(struct intel_gt *gt, unsigned long *flags)
> >  		 * registers.  This wakeref will be released in the unlock
> >  		 * routine.
> >  		 *
> > -		 * This is expected to become a formally documented/numbered
> > -		 * workaround soon.
> > +		 * Wa_22018931422
> >  		 */
> >  		intel_uncore_forcewake_get(gt->uncore, FORCEWAKE_GT);
> >  
> > -- 
> > 2.34.1
> > 
> 
> -- 
> Matt Roper
> Graphics Software Engineer
> Linux GPU Platform Enablement
> Intel Corporation

-- 
Matt Roper
Graphics Software Engineer
Linux GPU Platform Enablement
Intel Corporation