Allows UMDs to set 'Disable Gather at Set Shader Common Slice'.
Do Linux UMDs make use of this? This change has been security
reviewed and the whitelisting approved. Virtualization of other
OSes could certainly use it...
v2: Rebased
Cc: Mika Kuoppala <mika.kuoppala@xxxxxxxxxxxxxxx>
Signed-off-by: Oscar Mateo <oscar.mateo@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_engine_cs.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_engine_cs.c b/drivers/gpu/drm/i915/intel_engine_cs.c
index 0f13e1a..ee16b88 100644
--- a/drivers/gpu/drm/i915/intel_engine_cs.c
+++ b/drivers/gpu/drm/i915/intel_engine_cs.c
@@ -1470,6 +1470,7 @@ static int cfl_init_workarounds(struct intel_engine_cs *engine)
static int icl_init_workarounds(struct intel_engine_cs *engine)
{
struct drm_i915_private *dev_priv = engine->i915;
+ int ret;
/* Wa_1604370585:icl (pre-prod)
* Formerly known as WaPushConstantDereferenceHoldDisable
@@ -1494,6 +1495,11 @@ static int icl_init_workarounds(struct intel_engine_cs *engine)
WA_SET_BIT_MASKED(GEN7_ROW_CHICKEN2,
GEN11_TDL_CLOCK_GATING_FIX_DISABLE);
+ /* WaSendPushConstantsFromMMIO:icl */
+ ret = wa_ring_whitelist_reg(engine, COMMON_SLICE_CHICKEN2);
+ if (ret)
+ return ret;
+
return 0;
}
--
1.9.1
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