Some DG2 firmware locks this register for modification. Using wa_add with read_mask 0 allows to skip checks of such registers. Signed-off-by: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> --- drivers/gpu/drm/i915/gt/intel_workarounds.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c index 70071ead0659cc..1d1474ad945e0c 100644 --- a/drivers/gpu/drm/i915/gt/intel_workarounds.c +++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c @@ -1597,8 +1597,11 @@ dg2_gt_workarounds_init(struct intel_gt *gt, struct i915_wa_list *wal) /* Wa_14014830051:dg2 */ wa_mcr_write_clr(wal, SARB_CHICKEN1, COMP_CKN_IN); - /* Wa_14015795083 */ - wa_write_clr(wal, GEN7_MISCCPCTL, GEN12_DOP_CLOCK_GATE_RENDER_ENABLE); + /* Wa_14015795083 + * Skip verification for possibly locked register. + */ + wa_add(wal, GEN7_MISCCPCTL, GEN12_DOP_CLOCK_GATE_RENDER_ENABLE, + 0, 0, false); /* Wa_18018781329 */ wa_mcr_write_or(wal, RENDER_MOD_CTRL, FORCE_MISS_FTLB); -- 2.34.1
