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* [Intel-gfx] [CI 1/2] drm/i915: Redo "Remove i915_request.lock requirement for execution callbacks"
@ 2020-09-25 10:11 Chris Wilson
  2020-09-25 10:11 ` [Intel-gfx] [CI 2/2] drm/i915/gem: Hold request reference for canceling an active context Chris Wilson
                   ` (3 more replies)
  0 siblings, 4 replies; 5+ messages in thread
From: Chris Wilson @ 2020-09-25 10:11 UTC (permalink / raw)
  To: intel-gfx

The reordering and rebasing of commit 2e4c6c1a9db5 ("drm/i915: Remove
i915_request.lock requirement for execution callbacks") caused it to
revert an earlier correction. Let us restore commit 99f0a640d464
("drm/i915: Remove requirement for holding i915_request.lock for
breadcrumbs")

Fixes: 2e4c6c1a9db5 ("drm/i915: Remove i915_request.lock requirement for execution callbacks")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
---
 drivers/gpu/drm/i915/i915_request.c | 12 ++----------
 1 file changed, 2 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_request.c b/drivers/gpu/drm/i915/i915_request.c
index 11e272422fb7..436ce368ddaa 100644
--- a/drivers/gpu/drm/i915/i915_request.c
+++ b/drivers/gpu/drm/i915/i915_request.c
@@ -593,16 +593,8 @@ bool __i915_request_submit(struct i915_request *request)
 	__notify_execute_cb_irq(request);
 
 	/* We may be recursing from the signal callback of another i915 fence */
-	if (!i915_request_signaled(request)) {
-		spin_lock_nested(&request->lock, SINGLE_DEPTH_NESTING);
-
-		if (test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT,
-			     &request->fence.flags) &&
-		    !i915_request_enable_breadcrumb(request))
-			intel_engine_signal_breadcrumbs(engine);
-
-		spin_unlock(&request->lock);
-	}
+	if (test_bit(DMA_FENCE_FLAG_ENABLE_SIGNAL_BIT, &request->fence.flags))
+		i915_request_enable_breadcrumb(request);
 
 	return result;
 }
-- 
2.20.1

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^ permalink raw reply related	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2020-09-25 16:02 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-09-25 10:11 [Intel-gfx] [CI 1/2] drm/i915: Redo "Remove i915_request.lock requirement for execution callbacks" Chris Wilson
2020-09-25 10:11 ` [Intel-gfx] [CI 2/2] drm/i915/gem: Hold request reference for canceling an active context Chris Wilson
2020-09-25 11:41 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for series starting with [CI,1/2] drm/i915: Redo "Remove i915_request.lock requirement for execution callbacks" Patchwork
2020-09-25 12:03 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2020-09-25 16:02 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork

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