GVT needs single submission and cannot allow merge. So when GuC submitting
a GVT request, the next one should be submitted to guc later until the
previous one is completed. This is following the usage when using execlist
mode submission.
Cc: ch...@chris-wilson.co.uk
Signed-off-by: Chuanxiao Dong <chuanxiao.d...@intel.com>
---
drivers/gpu/drm/i915/i915_guc_submission.c | 6 +++++-
1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/i915_guc_submission.c
b/drivers/gpu/drm/i915/i915_guc_submission.c
index 1642fff..862f4fd 100644
--- a/drivers/gpu/drm/i915/i915_guc_submission.c
+++ b/drivers/gpu/drm/i915/i915_guc_submission.c
@@ -668,10 +668,14 @@ static bool i915_guc_dequeue(struct intel_engine_cs
*engine)
struct drm_i915_gem_request *rq =
rb_entry(rb, typeof(*rq), priotree.node);
- if (last && rq->ctx != last->ctx) {
+ if (last && !i915_gem_context_can_merge(last->ctx, rq->ctx)) {
if (port != engine->execlist_port)
break;
+ if (intel_gvt_context_single_port_submit(last->ctx) ||
+ intel_gvt_context_single_port_submit(rq->ctx))
+ break;
+
i915_gem_request_assign(&port->request, last);
nested_enable_signaling(last);
port++;
--
2.7.4
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