From: Zhen Han <zhen....@intel.com>
GPU hangs at RCC. According to Wa_14012131227 we shouldn't have a hang
due to RHWO, but that is what we are observing, even without media
compressible render target. Feedback from HW engineers is to leave RHWO
disabled.
Cc: Jianjun Liu <jianjun....@intel.com>
Cc: Chuansheng Liu <chuansheng....@intel.com>
Cc: Radhakrishna Sripada <radhakrishna.srip...@intel.com>
Signed-off-by: Zhen Han <zhen....@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demar...@intel.com>
---
drivers/gpu/drm/i915/gt/intel_workarounds.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c
b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index e678fa8d2ab9..5235fb70a69a 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -739,6 +739,17 @@ static void dg1_ctx_workarounds_init(struct
intel_engine_cs *engine,
FF_MODE2,
FF_MODE2_GS_TIMER_MASK,
FF_MODE2_GS_TIMER_224, 0);
+
+ /*
+ * Wa_14012131227
+ *
+ * Although the WA is described as causing corruption when using media
+ * compressible render target, leaving RHWO enabled is also causing
+ * gpu hang when using multiple concurrent render and media workloads.
+ * Disable it completely for now.
+ */
+ wa_masked_en(wal, GEN7_COMMON_SLICE_CHICKEN1,
+ GEN9_RHWO_OPTIMIZATION_DISABLE);
}
static void
--
2.30.1
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