A pending commit removes synchronous mode from switch_mm. This breaks
execlists because switch_mm will always try to write to the legacy ring
buffer.
Return immediately from i915_ppgtt_init_gw in execlists mode.
No longer check for execlists mode in gen8_ppgtt_enable() because this
will no longer be called in execlists mode.
Signed-off-by: Thomas Daniel <thomas.dan...@intel.com>
---
drivers/gpu/drm/i915/i915_gem_gtt.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem_gtt.c
b/drivers/gpu/drm/i915/i915_gem_gtt.c
index 22ad38b..00267b3 100644
--- a/drivers/gpu/drm/i915/i915_gem_gtt.c
+++ b/drivers/gpu/drm/i915/i915_gem_gtt.c
@@ -777,12 +777,6 @@ static void gen8_ppgtt_enable(struct drm_device *dev)
struct intel_engine_cs *ring;
int j;
- /* In the case of execlists, PPGTT is enabled by the context descriptor
- * and the PDPs are contained within the context itself. We don't
- * need to do anything here. */
- if (i915.enable_execlists)
- return;
-
for_each_ring(ring, dev_priv, j) {
I915_WRITE(RING_MODE_GEN7(ring),
_MASKED_BIT_ENABLE(GFX_PPGTT_ENABLE));
@@ -1126,6 +1120,12 @@ int i915_ppgtt_init_hw(struct drm_device *dev)
struct i915_hw_ppgtt *ppgtt = dev_priv->mm.aliasing_ppgtt;
int i, ret = 0;
+ /* In the case of execlists, PPGTT is enabled by the context descriptor
+ * and the PDPs are contained within the context itself. We don't
+ * need to do anything here. */
+ if (i915.enable_execlists)
+ return 0;
+
if (!USES_PPGTT(dev))
return 0;
--
1.7.9.5
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