This workaround the CS not done issue on PIPE_CONTROL.
BSpec: 52890
BSpec: 46218
Cc: Matt Roper <matthew.d.roper@xxxxxxxxx>
Signed-off-by: José Roberto de Souza <jose.souza@xxxxxxxxx>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 6 ++++++
drivers/gpu/drm/i915/i915_reg.h | 5 +++--
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 887e0dc701f7..57a5a39ee902 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1367,6 +1367,12 @@ rcs_engine_wa_init(struct intel_engine_cs *engine, struct i915_wa_list *wal)
GEN12_DISABLE_EARLY_READ);
}
+ if (IS_TIGERLAKE(i915)) {
+ /* Wa_1409804808:tgl */
+ wa_masked_en(wal, GEN7_ROW_CHICKEN2,
+ GEN12_PUSH_CONSTANT_DEREFERENCE_HOLD_DISABLE);
+ }
+
if (IS_GEN(i915, 11)) {
/* This is not an Wa. Enable for better image quality */
wa_masked_en(wal,
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f45b5e86ec63..cfc238ffd4ae 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -9149,8 +9149,9 @@ enum {
#define THROTTLE_12_5 (7 << 2)
#define DISABLE_EARLY_EOT (1 << 1)
-#define GEN7_ROW_CHICKEN2 _MMIO(0xe4f4)
-#define GEN12_DISABLE_EARLY_READ BIT(14)
+#define GEN7_ROW_CHICKEN2 _MMIO(0xe4f4)
+#define GEN12_DISABLE_EARLY_READ BIT(14)
+#define GEN12_PUSH_CONSTANT_DEREFERENCE_HOLD_DISABLE BIT(8)
#define GEN7_ROW_CHICKEN2_GT2 _MMIO(0xf4f4)
#define DOP_CLOCK_GATING_DISABLE (1 << 0)
--
2.25.1
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