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d6b7b46232
Since switching the scheduler from using kthreads to workqueues in
commit a6149f0393 ("drm/sched: Convert drm scheduler to use a work
queue rather than kthread") userspace applications cannot determine
the device from the PID of the threads sending the trace events
anymore.
Each queue had its own kthread which had a given PID for the whole
time. So, at least for amdgpu, it was possible to associate a PID
to the hardware queues of each GPU in the system. Then, when a
drm_run_job trace event was received by userspace, the source PID
allowed to associate it back to the correct GPU.
With workqueues this is not possible anymore, so the event needs to
contain the dev_name() to identify the device.
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Signed-off-by: Philipp Stanner <phasta@kernel.org>
Link: https://lore.kernel.org/r/20250526125505.2360-4-pierre-eric.pelloux-prayer@amd.com
117 lines
4.0 KiB
C
117 lines
4.0 KiB
C
/*
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* Copyright 2017 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#if !defined(_GPU_SCHED_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
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#define _GPU_SCHED_TRACE_H_
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#include <linux/stringify.h>
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#include <linux/types.h>
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#include <linux/tracepoint.h>
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM gpu_scheduler
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#define TRACE_INCLUDE_FILE gpu_scheduler_trace
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DECLARE_EVENT_CLASS(drm_sched_job,
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TP_PROTO(struct drm_sched_job *sched_job, struct drm_sched_entity *entity),
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TP_ARGS(sched_job, entity),
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TP_STRUCT__entry(
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__field(struct drm_sched_entity *, entity)
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__field(struct dma_fence *, fence)
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__string(name, sched_job->sched->name)
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__field(uint64_t, id)
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__field(u32, job_count)
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__field(int, hw_job_count)
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__string(dev, dev_name(sched_job->sched->dev))
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),
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TP_fast_assign(
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__entry->entity = entity;
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__entry->id = sched_job->id;
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__entry->fence = &sched_job->s_fence->finished;
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__assign_str(name);
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__entry->job_count = spsc_queue_count(&entity->job_queue);
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__entry->hw_job_count = atomic_read(
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&sched_job->sched->credit_count);
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__assign_str(dev);
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),
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TP_printk("dev=%s, entity=%p, id=%llu, fence=%p, ring=%s, job count:%u, hw job count:%d",
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__get_str(dev), __entry->entity, __entry->id,
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__entry->fence, __get_str(name),
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__entry->job_count, __entry->hw_job_count)
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);
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DEFINE_EVENT(drm_sched_job, drm_sched_job,
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TP_PROTO(struct drm_sched_job *sched_job, struct drm_sched_entity *entity),
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TP_ARGS(sched_job, entity)
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);
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DEFINE_EVENT(drm_sched_job, drm_run_job,
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TP_PROTO(struct drm_sched_job *sched_job, struct drm_sched_entity *entity),
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TP_ARGS(sched_job, entity)
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);
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TRACE_EVENT(drm_sched_process_job,
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TP_PROTO(struct drm_sched_fence *fence),
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TP_ARGS(fence),
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TP_STRUCT__entry(
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__field(struct dma_fence *, fence)
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),
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TP_fast_assign(
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__entry->fence = &fence->finished;
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),
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TP_printk("fence=%p signaled", __entry->fence)
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);
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TRACE_EVENT(drm_sched_job_wait_dep,
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TP_PROTO(struct drm_sched_job *sched_job, struct dma_fence *fence),
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TP_ARGS(sched_job, fence),
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TP_STRUCT__entry(
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__string(name, sched_job->sched->name)
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__field(uint64_t, id)
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__field(struct dma_fence *, fence)
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__field(uint64_t, ctx)
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__field(unsigned, seqno)
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),
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TP_fast_assign(
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__assign_str(name);
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__entry->id = sched_job->id;
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__entry->fence = fence;
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__entry->ctx = fence->context;
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__entry->seqno = fence->seqno;
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),
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TP_printk("job ring=%s, id=%llu, depends fence=%p, context=%llu, seq=%u",
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__get_str(name), __entry->id,
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__entry->fence, __entry->ctx,
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__entry->seqno)
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);
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#endif /* _GPU_SCHED_TRACE_H_ */
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/* This part must be outside protection */
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#undef TRACE_INCLUDE_PATH
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#define TRACE_INCLUDE_PATH ../../drivers/gpu/drm/scheduler
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#include <trace/define_trace.h>
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