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* [PATCH] drm/i915/bdw: Add WaHdcDisableFetchWhenMasked
@ 2014-12-04 15:07 Michel Thierry
  2014-12-04 15:25 ` Ville Syrjälä
                   ` (2 more replies)
  0 siblings, 3 replies; 10+ messages in thread
From: Michel Thierry @ 2014-12-04 15:07 UTC (permalink / raw)
  To: intel-gfx

We already have it for chv, but was missing for bdw.

Signed-off-by: Michel Thierry <michel.thierry@intel.com>
---
 drivers/gpu/drm/i915/intel_ringbuffer.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index 788e1b6..91ddcd1 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -756,9 +756,11 @@ static int bdw_init_workarounds(struct intel_engine_cs *ring)
 	 * workaround for for a possible hang in the unlikely event a TLB
 	 * invalidation occurs during a PSD flush.
 	 */
+	/* WaHdcDisableFetchWhenMasked:bdw */
 	/* WaDisableFenceDestinationToSLM:bdw (GT3 pre-production) */
 	WA_SET_BIT_MASKED(HDC_CHICKEN0,
 			  HDC_FORCE_NON_COHERENT |
+			  HDC_DONOT_FETCH_MEM_WHEN_MASKED |
 			  (IS_BDW_GT3(dev) ? HDC_FENCE_DEST_SLM_DISABLE : 0));
 
 	/* Wa4x4STCOptimizationDisable:bdw */
-- 
2.1.1

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^ permalink raw reply related	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2014-12-10  9:47 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2014-12-04 15:07 [PATCH] drm/i915/bdw: Add WaHdcDisableFetchWhenMasked Michel Thierry
2014-12-04 15:25 ` Ville Syrjälä
2014-12-04 15:36   ` Michel Thierry
2014-12-05 14:41   ` Daniel Vetter
2014-12-09 13:37     ` Michel Thierry
2014-12-10  9:18       ` Daniel Vetter
2014-12-10  9:47         ` Michel Thierry
2014-12-04 15:40 ` [PATCH v2] " Michel Thierry
2014-12-04 23:11   ` shuang.he
2014-12-04 19:58 ` [PATCH] " shuang.he

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