WaDisableInstructionShootdown:chv
WaForceEnableNonCoherent:chv
WaHdcDisableFetchWhenMasked:chv
WaDisableFenceDestinationToSLM:chv (pre-production)

s/WaDisableDopClockGating/WaDisableRowChickenDopClockGating, because another
CHV WA is defined with the same name in intel_pm.c for a different reg.

For: VIZ-4090
Signed-off-by: Arun Siluvery <[email protected]>
---
 drivers/gpu/drm/i915/i915_reg.h         |  2 ++
 drivers/gpu/drm/i915/intel_ringbuffer.c | 20 ++++++++++++++++++--
 2 files changed, 20 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 77fce96..840e5d9 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -5024,6 +5024,7 @@ enum punit_power_well {
 /* GEN8 chicken */
 #define HDC_CHICKEN0                           0x7300
 #define  HDC_FORCE_NON_COHERENT                        (1<<4)
+#define  HDC_DONOT_FETCH_MEM_WHEN_MASKED       (1<<11)
 #define  HDC_FENCE_DEST_SLM_DISABLE            (1<<14)
 
 /* WaCatErrorRejectionIssue */
@@ -5941,6 +5942,7 @@ enum punit_power_well {
 #define   GEN9_DG_MIRROR_FIX_ENABLE    (1<<5)
 
 #define GEN8_ROW_CHICKEN               0xe4f0
+#define   INSTRUCTION_SHOOTDOWN_DISABLE (1<<9)
 #define   PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE        (1<<8)
 #define   STALL_DOP_GATING_DISABLE             (1<<5)
 
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c 
b/drivers/gpu/drm/i915/intel_ringbuffer.c
index a8f72e8..2c07a02 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -788,14 +788,30 @@ static int chv_init_workarounds(struct intel_engine_cs 
*ring)
        struct drm_i915_private *dev_priv = dev->dev_private;
 
        /* WaDisablePartialInstShootdown:chv */
+       /* WaDisableInstructionShootdown:chv */
        WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN,
-                 PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE);
+                         PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE |
+                         (dev->pdev->revision < 0x06 ?
+                          INSTRUCTION_SHOOTDOWN_DISABLE : 0));
 
        /* WaDisableThreadStallDopClockGating:chv */
        WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN,
                  STALL_DOP_GATING_DISABLE);
 
-       /* WaDisableDopClockGating:chv (pre-production hw) */
+       /* Use Force Non-Coherent whenever executing a 3D context. This is a
+        * workaround for a possible hang in the unlikely event a TLB
+        * invalidation occurs during a PSD flush.
+        */
+       /* WaForceEnableNonCoherent:chv */
+       /* WaHdcDisableFetchWhenMasked:chv */
+       /* WaDisableFenceDestinationToSLM:chv (pre-production) */
+       WA_SET_BIT_MASKED(HDC_CHICKEN0,
+                         HDC_FORCE_NON_COHERENT |
+                         HDC_DONOT_FETCH_MEM_WHEN_MASKED |
+                         (dev->pdev->revision < 0x06 ?
+                          HDC_FENCE_DEST_SLM_DISABLE : 0));
+
+       /* WaDisableRowChickenDopClockGating:chv (pre-production hw) */
        WA_SET_BIT_MASKED(GEN7_ROW_CHICKEN2,
                  DOP_CLOCK_GATING_DISABLE);
 
-- 
2.1.2

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