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path: root/drivers/gpu/drm/i915/intel_breadcrumbs.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_breadcrumbs.c')
-rw-r--r--drivers/gpu/drm/i915/intel_breadcrumbs.c21
1 files changed, 13 insertions, 8 deletions
diff --git a/drivers/gpu/drm/i915/intel_breadcrumbs.c b/drivers/gpu/drm/i915/intel_breadcrumbs.c
index 1f79e7a47433..671a6d61e29d 100644
--- a/drivers/gpu/drm/i915/intel_breadcrumbs.c
+++ b/drivers/gpu/drm/i915/intel_breadcrumbs.c
@@ -730,10 +730,11 @@ static void insert_signal(struct intel_breadcrumbs *b,
list_add(&request->signaling.link, &iter->signaling.link);
}
-void intel_engine_enable_signaling(struct i915_request *request, bool wakeup)
+bool intel_engine_enable_signaling(struct i915_request *request, bool wakeup)
{
struct intel_engine_cs *engine = request->engine;
struct intel_breadcrumbs *b = &engine->breadcrumbs;
+ struct intel_wait *wait = &request->signaling.wait;
u32 seqno;
/*
@@ -750,12 +751,12 @@ void intel_engine_enable_signaling(struct i915_request *request, bool wakeup)
seqno = i915_request_global_seqno(request);
if (!seqno) /* will be enabled later upon execution */
- return;
+ return true;
- GEM_BUG_ON(request->signaling.wait.seqno);
- request->signaling.wait.tsk = b->signaler;
- request->signaling.wait.request = request;
- request->signaling.wait.seqno = seqno;
+ GEM_BUG_ON(wait->seqno);
+ wait->tsk = b->signaler;
+ wait->request = request;
+ wait->seqno = seqno;
/*
* Add ourselves into the list of waiters, but registering our
@@ -768,11 +769,15 @@ void intel_engine_enable_signaling(struct i915_request *request, bool wakeup)
*/
spin_lock(&b->rb_lock);
insert_signal(b, request, seqno);
- wakeup &= __intel_engine_add_wait(engine, &request->signaling.wait);
+ wakeup &= __intel_engine_add_wait(engine, wait);
spin_unlock(&b->rb_lock);
- if (wakeup)
+ if (wakeup) {
wake_up_process(b->signaler);
+ return !intel_wait_complete(wait);
+ }
+
+ return true;
}
void intel_engine_cancel_signaling(struct i915_request *request)
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