[PATCH v2] drm/i915/mtl: Update workaround 14018778641

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The WA should be extended to cover VDBOX engine. We found that
28-channels 1080p VP9 encoding may hit this issue.

Signed-off-by: Chen, Angus <angus.chen@xxxxxxxxx>
---
 drivers/gpu/drm/i915/gt/intel_workarounds.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index d1ab560fcdfc..da0a481a375e 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1586,6 +1586,9 @@ 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_14018778641 */
+	wa_write_or(wal, XELPMP_VDBX_MOD_CTRL, FORCE_MISS_FTLB);
+
 	/* Wa_22016670082 */
 	wa_write_or(wal, GEN12_SQCNT1, GEN12_STRICT_RAR_ENABLE);
 
-- 
2.34.1




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