If we are asked to submit a completed request, just move it onto the
active-list without modifying it's payload.
Signed-off-by: Chris Wilson <ch...@chris-wilson.co.uk>
---
drivers/gpu/drm/i915/i915_request.c | 14 +++++++++-----
1 file changed, 9 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_request.c
b/drivers/gpu/drm/i915/i915_request.c
index 8ac7d14ec8c9..69fc66bd1125 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -397,6 +397,9 @@ void __i915_request_submit(struct i915_request *request)
GEM_BUG_ON(!irqs_disabled());
lockdep_assert_held(&engine->active.lock);
+ if (i915_request_completed(request))
+ goto xfer;
+
if (i915_gem_context_is_banned(request->gem_context))
i915_request_skip(request, -EIO);
@@ -420,7 +423,13 @@ void __i915_request_submit(struct i915_request *request)
i915_sw_fence_signaled(&request->semaphore))
engine->saturated |= request->sched.semaphores;
+ engine->emit_fini_breadcrumb(request,
+ request->ring->vaddr + request->postfix);
+
+ engine->serial++;
+
/* We may be recursing from the signal callback of another i915 fence */
+xfer:
spin_lock_nested(&request->lock, SINGLE_DEPTH_NESTING);
list_move_tail(&request->sched.link, &engine->active.requests);
@@ -437,11 +446,6 @@ void __i915_request_submit(struct i915_request *request)
spin_unlock(&request->lock);
- engine->emit_fini_breadcrumb(request,
- request->ring->vaddr + request->postfix);
-
- engine->serial++;
-
trace_i915_request_execute(request);
}
--
2.23.0.rc1
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