[PATCH] drm/i915/mtl: Update workaround 14018778641

[Upadhyay, Tejas]

> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Chen,
> Angus
> Sent: Tuesday, April 30, 2024 4:50 PM
> To: Andi Shyti <andi.shyti at linux.intel.com>
> Cc: intel-gfx at lists.freedesktop.org
> Subject: Re: [PATCH] drm/i915/mtl: Update workaround 14018778641
> 
> The original workaround was from
> https://patchwork.freedesktop.org/patch/533574/
> Then, we don't apply WA to VDBOX, VEBOX and RENDER engine with the
> following patch
> https://patchwork.freedesktop.org/patch/543117/?series=119517&rev=1
> But now we need this WA to cover VDBOX.
> 
> On 4/29/2024 5:53 PM, Andi Shyti wrote:
> > Hi Angus,
> >
> > ...
> >
> >> @@ -1586,6 +1586,8 @@ xelpmp_gt_workarounds_init(struct intel_gt *gt,
> struct i915_wa_list *wal)
> >>   	 */
> >>   	wa_write_or(wal, XELPMP_GSC_MOD_CTRL, FORCE_MISS_FTLB);
> >>
> >> +	wa_write_or(wal, XELPMP_VDBX_MOD_CTRL, FORCE_MISS_FTLB);
> > Can you please add the reference of the workaround in a comment here?

As far as I know media team confirmed that there is no perf impact and this WA can be removed. As Andi said, reference would be help here.

Thanks,
Tejas
> >
> > Thanks,
> > Andi
> >
> >> +