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drm/i915: Additional request structure tracing 

Added the request structure's 'uniq' identifier to the trace information. Also
renamed the '_complete' trace event to '_notify' as it actually happens in the
IRQ 'notify_ring()' function. The intention is to add a new '_complete' trace
event which occurs when a request structure is actually marked as complete.
However, at the moment the completion status is re-tested every time the query
is made so there isn't a completion event as such.

v2: New patch added to series.

v3: Rebased to remove completion caching as that is apparently contentious.

Change-Id: Ic9bcde67d175c6c03b96217cdcb6e4cc4aa45d67
For: VIZ-4377
Signed-off-by: John Harrison <John.C.Harrison@Intel.com>
Reviewed-by: Thomas Daniel <Thomas.Daniel@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
John Harrison 2014-12-05 13:49:36 +00:00 committed by Daniel Vetter
parent 67e2937bf4
commit bcfcc8ba29
2 changed files with 17 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/i915/i915_irq.c
View File

@ -1013,7 +1013,7 @@ static void notify_ring(struct drm_device *dev,
if (!intel_ring_initialized(ring))
return;
trace_i915_gem_request_complete(ring);
trace_i915_gem_request_notify(ring);
wake_up_all(&ring->irq_queue);
}

22
drivers/gpu/drm/i915/i915_trace.h
View File

@ -406,6 +406,7 @@ DECLARE_EVENT_CLASS(i915_gem_request,
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, uniq)
__field(u32, seqno)
),
@ -414,11 +415,13 @@ DECLARE_EVENT_CLASS(i915_gem_request,
i915_gem_request_get_ring(req);
__entry->dev = ring->dev->primary->index;
__entry->ring = ring->id;
__entry->uniq = req ? req->uniq : 0;
__entry->seqno = i915_gem_request_get_seqno(req);
),
TP_printk("dev=%u, ring=%u, seqno=%u",
__entry->dev, __entry->ring, __entry->seqno)
TP_printk("dev=%u, ring=%u, uniq=%u, seqno=%u",
__entry->dev, __entry->ring, __entry->uniq,
__entry->seqno)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_add,
@ -426,7 +429,7 @@ DEFINE_EVENT(i915_gem_request, i915_gem_request_add,
TP_ARGS(req)
);
TRACE_EVENT(i915_gem_request_complete,
TRACE_EVENT(i915_gem_request_notify,
TP_PROTO(struct intel_engine_cs *ring),
TP_ARGS(ring),
@ -451,6 +454,11 @@ DEFINE_EVENT(i915_gem_request, i915_gem_request_retire,
TP_ARGS(req)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_complete,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req)
);
TRACE_EVENT(i915_gem_request_wait_begin,
TP_PROTO(struct drm_i915_gem_request *req),
TP_ARGS(req),
@ -458,6 +466,7 @@ TRACE_EVENT(i915_gem_request_wait_begin,
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, uniq)
__field(u32, seqno)
__field(bool, blocking)
),
@ -473,14 +482,15 @@ TRACE_EVENT(i915_gem_request_wait_begin,
i915_gem_request_get_ring(req);
__entry->dev = ring->dev->primary->index;
__entry->ring = ring->id;
__entry->uniq = req ? req->uniq : 0;
__entry->seqno = i915_gem_request_get_seqno(req);
__entry->blocking =
mutex_is_locked(&ring->dev->struct_mutex);
),
TP_printk("dev=%u, ring=%u, seqno=%u, blocking=%s",
__entry->dev, __entry->ring, __entry->seqno,
__entry->blocking ? "yes (NB)" : "no")
TP_printk("dev=%u, ring=%u, uniq=%u, seqno=%u, blocking=%s",
__entry->dev, __entry->ring, __entry->uniq,
__entry->seqno, __entry->blocking ? "yes (NB)" : "no")
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_wait_end,