[Intel-gfx] [PATCH 03/10] drm/i915: gen 9 h/w w/a (WaDisablePartialInstShootdown)

Nick Hoath nicholas.hoath at intel.com
Thu Feb 5 02:47:18 PST 2015


From: "Hoath, Nicholas" <nicholas.hoath at intel.com>

Add:
WaDisablePartialInstShootdown

v1: Dont add WaDisableThreadStallDopClockGating as not SKL WA. (Found by Damien Lespiau)

Signed-off-by: Nick Hoath <nicholas.hoath at intel.com>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index fbfe65a..b869f1c 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -875,6 +875,13 @@ static int chv_init_workarounds(struct intel_engine_cs *ring)
 
 static int gen9_init_workarounds(struct intel_engine_cs *ring)
 {
+	struct drm_device *dev = ring->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	/* WaDisablePartialInstShootdown:skl */
+	WA_SET_BIT_MASKED(GEN8_ROW_CHICKEN,
+			  PARTIAL_INSTRUCTION_SHOOTDOWN_DISABLE);
+
 	return 0;
 }
 
-- 
2.1.1



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