drm/v3d: Add more tracepoints for V3D GPU rendering.

The core scheduler tells us when the job is pushed to the scheduler's
queue, and I had the job_run functions saying when they actually queue
the job to the hardware.  By adding tracepoints for the very top of
the ioctls and the IRQs signaling job completion, "perf record -a -e
v3d:.\* -e gpu_scheduler:.\* <job>; perf script" gets you a pretty
decent timeline.

Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181201005759.28093-5-eric@anholt.net
Reviewed-by: Dave Emett <david.emett@broadcom.com>

1 files changed, 101 insertions, 0 deletions

diff --git a/drivers/gpu/drm/v3d/v3d_trace.h b/drivers/gpu/drm/v3d/v3d_trace.h
index f54ed9cd3444..edd984afa33f 100644
--- a/drivers/gpu/drm/v3d/v3d_trace.h
+++ b/drivers/gpu/drm/v3d/v3d_trace.h
@@ -12,6 +12,28 @@
 #define TRACE_SYSTEM v3d
 #define TRACE_INCLUDE_FILE v3d_trace
 
+TRACE_EVENT(v3d_submit_cl_ioctl,
+            TP_PROTO(struct drm_device *dev, u32 ct1qba, u32 ct1qea),
+            TP_ARGS(dev, ct1qba, ct1qea),
+
+            TP_STRUCT__entry(
+                             __field(u32, dev)
+                             __field(u32, ct1qba)
+                             __field(u32, ct1qea)
+                             ),
+
+            TP_fast_assign(
+                           __entry->dev = dev->primary->index;
+                           __entry->ct1qba = ct1qba;
+                           __entry->ct1qea = ct1qea;
+                           ),
+
+            TP_printk("dev=%u, RCL 0x%08x..0x%08x",
+                      __entry->dev,
+                      __entry->ct1qba,
+                      __entry->ct1qea)
+);
+
 TRACE_EVENT(v3d_submit_cl,
             TP_PROTO(struct drm_device *dev, bool is_render,
                      uint64_t seqno,
@@ -42,6 +64,85 @@ TRACE_EVENT(v3d_submit_cl,
                       __entry->ctnqea)
 );
 
+TRACE_EVENT(v3d_bcl_irq,
+            TP_PROTO(struct drm_device *dev,
+                     uint64_t seqno),
+            TP_ARGS(dev, seqno),
+
+            TP_STRUCT__entry(
+                             __field(u32, dev)
+                             __field(u64, seqno)
+                             ),
+
+            TP_fast_assign(
+                           __entry->dev = dev->primary->index;
+                           __entry->seqno = seqno;
+                           ),
+
+            TP_printk("dev=%u, seqno=%llu",
+                      __entry->dev,
+                      __entry->seqno)
+);
+
+TRACE_EVENT(v3d_rcl_irq,
+            TP_PROTO(struct drm_device *dev,
+                     uint64_t seqno),
+            TP_ARGS(dev, seqno),
+
+            TP_STRUCT__entry(
+                             __field(u32, dev)
+                             __field(u64, seqno)
+                             ),
+
+            TP_fast_assign(
+                           __entry->dev = dev->primary->index;
+                           __entry->seqno = seqno;
+                           ),
+
+            TP_printk("dev=%u, seqno=%llu",
+                      __entry->dev,
+                      __entry->seqno)
+);
+
+TRACE_EVENT(v3d_tfu_irq,
+            TP_PROTO(struct drm_device *dev,
+                     uint64_t seqno),
+            TP_ARGS(dev, seqno),
+
+            TP_STRUCT__entry(
+                             __field(u32, dev)
+                             __field(u64, seqno)
+                             ),
+
+            TP_fast_assign(
+                           __entry->dev = dev->primary->index;
+                           __entry->seqno = seqno;
+                           ),
+
+            TP_printk("dev=%u, seqno=%llu",
+                      __entry->dev,
+                      __entry->seqno)
+);
+
+TRACE_EVENT(v3d_submit_tfu_ioctl,
+            TP_PROTO(struct drm_device *dev, u32 iia),
+            TP_ARGS(dev, iia),
+
+            TP_STRUCT__entry(
+                             __field(u32, dev)
+                             __field(u32, iia)
+                             ),
+
+            TP_fast_assign(
+                           __entry->dev = dev->primary->index;
+                           __entry->iia = iia;
+                           ),
+
+            TP_printk("dev=%u, IIA 0x%08x",
+                      __entry->dev,
+                      __entry->iia)
+);
+
 TRACE_EVENT(v3d_submit_tfu,
             TP_PROTO(struct drm_device *dev,
                      uint64_t seqno),