It's useful to trace any dependency a job has on prevoius
jobs.
Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c | 5 +++++
drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h | 24 ++++++++++++++++++++++++
2 files changed, 29 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
index 5518e62..5c22cfd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -32,6 +32,7 @@
#include <drm/amdgpu_drm.h>
#include "amdgpu.h"
#include "atom.h"
+#include "amdgpu_trace.h"
#define AMDGPU_IB_TEST_TIMEOUT msecs_to_jiffies(1000)
@@ -168,6 +169,10 @@ int amdgpu_ib_schedule(struct amdgpu_ring *ring, unsigned num_ibs,
((tmp = amdgpu_sync_get_fence(&job->sched_sync, NULL)) ||
amdgpu_vm_need_pipeline_sync(ring, job))) {
need_pipe_sync = true;
+
+ if (tmp)
+ trace_amdgpu_ib_pipe_sync(job, tmp);
+
dma_fence_put(tmp);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index 11f262f..3cffe53 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -457,6 +457,30 @@ TRACE_EVENT(amdgpu_bo_move,
__entry->new_placement, __entry->bo_size)
);
+TRACE_EVENT(amdgpu_ib_pipe_sync,
+ TP_PROTO(struct amdgpu_job *sched_job, struct dma_fence *fence),
+ TP_ARGS(sched_job, fence),
+ TP_STRUCT__entry(
+ __field(const char *,name)
+ __field(uint64_t, id)
+ __field(struct dma_fence *, fence)
+ __field(uint64_t, ctx)
+ __field(unsigned, seqno)
+ ),
+
+ TP_fast_assign(
+ __entry->name = sched_job->base.sched->name;
+ __entry->id = sched_job->base.id;
+ __entry->fence = fence;
+ __entry->ctx = fence->context;
+ __entry->seqno = fence->seqno;
+ ),
+ TP_printk("job ring=%s, id=%llu, need pipe sync to fence=%p, context=%llu, seq=%u",
+ __entry->name, __entry->id,
+ __entry->fence, __entry->ctx,
+ __entry->seqno)
+);
+
#undef AMDGPU_JOB_GET_TIMELINE_NAME
#endif
--
2.7.4
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