It's useful to trace any dependency a job has on prevoius jobs.
Signed-off-by: Andrey Grodzovsky andrey.grodzovsky@amd.com --- 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