[Intel-gfx] [PATCH 21/23] drm/i915: Remove the intel_engine_notify tracepoint

Chris Wilson chris at chris-wilson.co.uk
Thu Jan 17 14:35:02 UTC 2019


The global seqno is defunct and so we have no meaningful indicator of
forward progress for an engine. You need to listen to the request
signaling tracepoints instead.

Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
---
 drivers/gpu/drm/i915/i915_irq.c   |  2 --
 drivers/gpu/drm/i915/i915_trace.h | 25 -------------------------
 2 files changed, 27 deletions(-)

diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index 1abfc3fa76ad..8da5816e2854 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1210,8 +1210,6 @@ static void notify_ring(struct intel_engine_cs *engine)
 		wake_up_process(tsk);
 
 	rcu_read_unlock();
-
-	trace_intel_engine_notify(engine, wait);
 }
 
 static void vlv_c0_read(struct drm_i915_private *dev_priv,
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 33d90eca9cdd..cb5bc65d575d 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -750,31 +750,6 @@ trace_i915_request_out(struct i915_request *rq)
 #endif
 #endif
 
-TRACE_EVENT(intel_engine_notify,
-	    TP_PROTO(struct intel_engine_cs *engine, bool waiters),
-	    TP_ARGS(engine, waiters),
-
-	    TP_STRUCT__entry(
-			     __field(u32, dev)
-			     __field(u16, class)
-			     __field(u16, instance)
-			     __field(u32, seqno)
-			     __field(bool, waiters)
-			     ),
-
-	    TP_fast_assign(
-			   __entry->dev = engine->i915->drm.primary->index;
-			   __entry->class = engine->uabi_class;
-			   __entry->instance = engine->instance;
-			   __entry->seqno = intel_engine_get_seqno(engine);
-			   __entry->waiters = waiters;
-			   ),
-
-	    TP_printk("dev=%u, engine=%u:%u, seqno=%u, waiters=%u",
-		      __entry->dev, __entry->class, __entry->instance,
-		      __entry->seqno, __entry->waiters)
-);
-
 DEFINE_EVENT(i915_request, i915_request_retire,
 	    TP_PROTO(struct i915_request *rq),
 	    TP_ARGS(rq)
-- 
2.20.1



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