Reviewed-by: Oak Zeng <[email protected]> Thanks, Oak
> -----Original Message----- > From: Das, Nirmoy <[email protected]> > Sent: Wednesday, September 13, 2023 9:10 AM > To: [email protected] > Cc: Zeng, Oak <[email protected]>; [email protected]; > Piorkowski, > Piotr <[email protected]>; Shyti, Andi <[email protected]>; Mun, > Gwan-gyeong <[email protected]>; Roper, Matthew D > <[email protected]>; Das, Nirmoy <[email protected]> > Subject: [PATCH 7/7] drm/i915: Enable GGTT updates with binder in MTL > > MTL can hang because of a HW bug while parallel reading/writing > from/to LMEM/GTTMMADR BAR so try to reduce GGTT update > related pci transactions with blitter command as recommended > for Wa_13010847436 and Wa_14019519902. > > Signed-off-by: Nirmoy Das <[email protected]> > --- > drivers/gpu/drm/i915/gt/intel_gtt.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/i915/gt/intel_gtt.c > b/drivers/gpu/drm/i915/gt/intel_gtt.c > index 4c89eb8d9af7..4fbed27ef0ec 100644 > --- a/drivers/gpu/drm/i915/gt/intel_gtt.c > +++ b/drivers/gpu/drm/i915/gt/intel_gtt.c > @@ -23,7 +23,8 @@ > > bool i915_ggtt_require_binder(struct drm_i915_private *i915) > { > - return false; > + /* Wa_13010847436 & Wa_14019519902 */ > + return MEDIA_VER_FULL(i915) == IP_VER(13, 0); > } > > static bool intel_ggtt_update_needs_vtd_wa(struct drm_i915_private *i915) > -- > 2.41.0
