Avoids an undefined LLC behavior.
BSpec: 9613
v2: Renamed to Wa_1405733216
v3: Spaces around '<<' and fix surrounding code
v4: Rebased on top of the WA refactoring
v5: Added References (Mika)
v6:
- Rebased
- C, not lisp (Chris)
References: HSDES#1405733216
Signed-off-by: Oscar Mateo <oscar.mateo@xxxxxxxxx>
Reviewed-by: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
---
drivers/gpu/drm/i915/i915_reg.h | 5 +++--
drivers/gpu/drm/i915/intel_workarounds.c | 6 ++++++
2 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 7fe505c..a7bd739 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -7232,8 +7232,9 @@ enum {
#define L3SQ_URB_READ_CAM_MATCH_DISABLE (1<<27)
#define GEN8_L3SQCREG4 _MMIO(0xb118)
-#define GEN8_LQSC_RO_PERF_DIS (1<<27)
-#define GEN8_LQSC_FLUSH_COHERENT_LINES (1<<21)
+#define GEN11_LQSC_CLEAN_EVICT_DISABLE (1 << 6)
+#define GEN8_LQSC_RO_PERF_DIS (1 << 27)
+#define GEN8_LQSC_FLUSH_COHERENT_LINES (1 << 21)
/* GEN8 chicken */
#define HDC_CHICKEN0 _MMIO(0x7300)
diff --git a/drivers/gpu/drm/i915/intel_workarounds.c b/drivers/gpu/drm/i915/intel_workarounds.c
index 2561c55..7e8bcc2 100644
--- a/drivers/gpu/drm/i915/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/intel_workarounds.c
@@ -720,6 +720,12 @@ static void icl_gt_workarounds_apply(struct drm_i915_private *dev_priv)
I915_WRITE(GEN11_GACB_PERF_CTRL,
(I915_READ(GEN11_GACB_PERF_CTRL) & ~GEN11_HASH_CTRL_MASK) |
GEN11_HASH_CTRL_BIT0 | GEN11_HASH_CTRL_BIT4);
+
+ /* Wa_1405733216:icl
+ * Formerly known as WaDisableCleanEvicts
+ */
+ I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) |
+ GEN11_LQSC_CLEAN_EVICT_DISABLE);
}
void intel_gt_workarounds_apply(struct drm_i915_private *dev_priv)
--
1.9.1
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