From: John Harrison <John.C.Harrison@xxxxxxxxx>
Added the '_complete' trace event which occurs when a fence/request is
signaled as complete. Also moved the notify event from the IRQ handler
code to inside the notify function itself.
v3: Added the current ring seqno to the notify trace point.
v5: Line wrapping to keep the style checker happy.
For: VIZ-5190
Signed-off-by: John Harrison <John.C.Harrison@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 9 +++++++--
drivers/gpu/drm/i915/i915_irq.c | 2 --
drivers/gpu/drm/i915/i915_trace.h | 14 +++++++++-----
3 files changed, 16 insertions(+), 9 deletions(-)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 635729e..f7858ea 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2870,13 +2870,16 @@ void i915_gem_request_notify(struct intel_engine_cs *ring, bool fence_locked)
unsigned long flags;
u32 seqno;
- if (list_empty(&ring->fence_signal_list))
+ if (list_empty(&ring->fence_signal_list)) {
+ trace_i915_gem_request_notify(ring, 0);
return;
+ }
if (!fence_locked)
spin_lock_irqsave(&ring->fence_lock, flags);
seqno = ring->get_seqno(ring, false);
+ trace_i915_gem_request_notify(ring, seqno);
list_for_each_entry_safe(req, req_next, &ring->fence_signal_list, signal_link) {
if (!req->cancelled) {
@@ -2890,8 +2893,10 @@ void i915_gem_request_notify(struct intel_engine_cs *ring, bool fence_locked)
*/
list_del_init(&req->signal_link);
- if (!req->cancelled)
+ if (!req->cancelled) {
fence_signal_locked(&req->fence);
+ trace_i915_gem_request_complete(req);
+ }
if (req->irq_enabled) {
req->ring->irq_put(req->ring);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index a5f64aa..20c6a90 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -999,8 +999,6 @@ static void notify_ring(struct intel_engine_cs *ring)
if (!intel_ring_initialized(ring))
return;
- trace_i915_gem_request_notify(ring);
-
i915_gem_request_notify(ring, false);
wake_up_all(&ring->irq_queue);
diff --git a/drivers/gpu/drm/i915/i915_trace.h b/drivers/gpu/drm/i915/i915_trace.h
index 52b2d40..cfe4f03 100644
--- a/drivers/gpu/drm/i915/i915_trace.h
+++ b/drivers/gpu/drm/i915/i915_trace.h
@@ -561,23 +561,27 @@ DEFINE_EVENT(i915_gem_request, i915_gem_request_add,
);
TRACE_EVENT(i915_gem_request_notify,
- TP_PROTO(struct intel_engine_cs *ring),
- TP_ARGS(ring),
+ TP_PROTO(struct intel_engine_cs *ring, uint32_t seqno),
+ TP_ARGS(ring, seqno),
TP_STRUCT__entry(
__field(u32, dev)
__field(u32, ring)
__field(u32, seqno)
+ __field(bool, is_empty)
),
TP_fast_assign(
__entry->dev = ring->dev->primary->index;
__entry->ring = ring->id;
- __entry->seqno = ring->get_seqno(ring, false);
+ __entry->seqno = seqno;
+ __entry->is_empty =
+ list_empty(&ring->fence_signal_list);
),
- TP_printk("dev=%u, ring=%u, seqno=%u",
- __entry->dev, __entry->ring, __entry->seqno)
+ TP_printk("dev=%u, ring=%u, seqno=%u, empty=%d",
+ __entry->dev, __entry->ring, __entry->seqno,
+ __entry->is_empty)
);
DEFINE_EVENT(i915_gem_request, i915_gem_request_retire,
--
1.9.1
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