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However, VFs shouldn't need > any explicit TLB invalidation before enabling CTB communication, > as there will be an implicit GGTT TLB invalidation issued by the > GuC itself as part of MMIO-based action handling. > > Signed-off-by: Michal Wajdeczko > --- > drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c > index 23d397a246a8..e1f1ccb01143 100644 > --- a/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c > +++ b/drivers/gpu/drm/xe/xe_gt_tlb_invalidation.c > @@ -13,6 +13,7 @@ > #include "xe_guc.h" > #include "xe_guc_ct.h" > #include "xe_mmio.h" > +#include "xe_sriov.h" > #include "xe_trace.h" > #include "regs/xe_guc_regs.h" > > @@ -249,6 +250,9 @@ int xe_gt_tlb_invalidation_ggtt(struct xe_gt *gt) > > xe_gt_tlb_invalidation_wait(gt, seqno); > } else if (xe_device_uc_enabled(xe) && !xe_device_wedged(xe)) { > + if (IS_SRIOV_VF(xe)) > + return 0; > + > xe_gt_WARN_ON(gt, xe_force_wake_get(gt_to_fw(gt), XE_FW_GT)); > if (xe->info.platform == XE_PVC || GRAPHICS_VER(xe) >= 20) { > xe_mmio_write32(gt, PVC_GUC_TLB_INV_DESC1, Reviewed-by: Piotr Piórkowski > -- > 2.43.0 > --