Re: [PATCH 2/3] drm/i915/trace: Remove engine out of the context sandwich

[Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>]

On 25/05/18 11:28, Lionel Landwerlin wrote:
> On 25/05/18 09:26, Tvrtko Ursulin wrote:
> > From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> >
> > In the string tracepoint representation we ended up with the engine
> > sandwiched between context hardware id and context fence id.
> >
> > Move the two pieces of context data together for redability.
> >
> > Binary records are left as is, that is both fields remaing under the
> > existing name and ordering.
> >
> > v2:
> >   * Do not consolidate the printk format, just reorder. (Lionel)
> >
> > Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
> > Cc: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
>
> Maybe there was misunderstanding on my previous comment.
> What I wanted to let you know is that the parser in igt doesn't know 
> (yet) how to deal with "engine=%u:%u".

Duh! Actually I'm wrong about that!
It's all fine for the parser. Just need to update the overlay logic.


> The ordering of the field doesn't matter though.
>
> Updating the parser is probably a one liner. There is some interesting 
> logic behind though that expect the engine ids to be contiguous numbers.
>
> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@xxxxxxxxx>
>
> > ---
> >   drivers/gpu/drm/i915/i915_trace.h | 30 +++++++++++++++---------------
> >   1 file changed, 15 insertions(+), 15 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/i915/i915_trace.h 
> > b/drivers/gpu/drm/i915/i915_trace.h
> > index 7acea4052798..bac582ed3a0b 100644
> > --- a/drivers/gpu/drm/i915/i915_trace.h
> > +++ b/drivers/gpu/drm/i915/i915_trace.h
> > @@ -638,9 +638,9 @@ TRACE_EVENT(i915_request_queue,
> >                  __entry->flags = flags;
> >                  ),
> >   -        TP_printk("dev=%u, hw_id=%u, engine=%u:%u, ctx=%u, 
> > seqno=%u, flags=0x%x",
> > -              __entry->dev, __entry->hw_id, __entry->class,
> > -              __entry->instance, __entry->ctx, __entry->seqno,
> > +        TP_printk("dev=%u, engine=%u:%u, hw_id=%u, ctx=%u, seqno=%u, 
> > flags=0x%x",
> > +              __entry->dev, __entry->class, __entry->instance,
> > +              __entry->hw_id, __entry->ctx, __entry->seqno,
> >                 __entry->flags)
> >   );
> >   @@ -668,9 +668,9 @@ DECLARE_EVENT_CLASS(i915_request,
> >                  __entry->global = rq->global_seqno;
> >                  ),
> >   -        TP_printk("dev=%u, hw_id=%u, engine=%u:%u, ctx=%u, 
> > seqno=%u, global=%u",
> > -              __entry->dev, __entry->hw_id, __entry->class,
> > -              __entry->instance, __entry->ctx, __entry->seqno,
> > +        TP_printk("dev=%u, engine=%u:%u, hw_id=%u, ctx=%u, seqno=%u, 
> > global=%u",
> > +              __entry->dev, __entry->class, __entry->instance,
> > +              __entry->hw_id, __entry->ctx, __entry->seqno,
> >                 __entry->global)
> >   );
> >   @@ -718,9 +718,9 @@ TRACE_EVENT(i915_request_in,
> >                  __entry->port = port;
> >                  ),
> >   -        TP_printk("dev=%u, hw_id=%u, engine=%u:%u, ctx=%u, 
> > seqno=%u, prio=%u, global=%u, port=%u",
> > -              __entry->dev, __entry->hw_id, __entry->class,
> > -              __entry->instance, __entry->ctx, __entry->seqno,
> > +        TP_printk("dev=%u, engine=%u:%u, hw_id=%u, ctx=%u, seqno=%u, 
> > prio=%u, global=%u, port=%u",
> > +              __entry->dev, __entry->class, __entry->instance,
> > +              __entry->hw_id, __entry->ctx, __entry->seqno,
> >                 __entry->prio, __entry->global_seqno, __entry->port)
> >   );
> >   @@ -750,9 +750,9 @@ TRACE_EVENT(i915_request_out,
> >                  __entry->completed = i915_request_completed(rq);
> >                  ),
> >   -            TP_printk("dev=%u, hw_id=%u, engine=%u:%u, ctx=%u, 
> > seqno=%u, global=%u, completed?=%u",
> > -                  __entry->dev, __entry->hw_id, __entry->class,
> > -                  __entry->instance, __entry->ctx, __entry->seqno,
> > +            TP_printk("dev=%u, engine=%u:%u, hw_id=%u, ctx=%u, 
> > seqno=%u, global=%u, completed?=%u",
> > +                  __entry->dev, __entry->class, __entry->instance,
> > +                  __entry->hw_id, __entry->ctx, __entry->seqno,
> >                     __entry->global_seqno, __entry->completed)
> >   );
> >   @@ -842,9 +842,9 @@ TRACE_EVENT(i915_request_wait_begin,
> >                  __entry->flags = flags;
> >                  ),
> >   -        TP_printk("dev=%u, hw_id=%u, engine=%u:%u, ctx=%u, 
> > seqno=%u, global=%u, blocking=%u, flags=0x%x",
> > -              __entry->dev, __entry->hw_id, __entry->class,
> > -              __entry->instance, __entry->ctx, __entry->seqno,
> > +        TP_printk("dev=%u, engine=%u:%u, hw_id=%u, ctx=%u, seqno=%u, 
> > global=%u, blocking=%u, flags=0x%x",
> > +              __entry->dev, __entry->class, __entry->instance,
> > +              __entry->hw_id, __entry->ctx, __entry->seqno,
> >                 __entry->global, !!(__entry->flags & I915_WAIT_LOCKED),
> >                 __entry->flags)
> >   );
>
>
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