This is a spec requirement for all rings.
Signed-off-by: Ben Widawsky <b...@bwidawsk.net>
---
drivers/gpu/drm/i915/i915_gem_context.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c
b/drivers/gpu/drm/i915/i915_gem_context.c
index 5b4a9a0..1ac648f 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -870,6 +870,9 @@ int i915_switch_context(struct intel_engine_cs *ring,
if (from == to && !to->remap_slice)
return 0;
+ if (IS_GEN8(ring->dev))
+ WARN_ON(ring->flush(ring, I915_GEM_GPU_DOMAINS, 0));
+
if (ring->id == RCS)
return do_switch_rcs(ring, from, to);
else
--
2.0.1
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