On 11/05/2017 14:07, Chris Wilson wrote:
On Thu, May 11, 2017 at 02:00:45PM +0100, Tvrtko Ursulin wrote:
From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx>
For userspace receiving binary data it is easier if all related
request tracepoints emit the binary data in the same order of
dev, ring, ctx, seqno, ...
We decided that dev, ctx, ring, seqno was the right heirachy last time.
After much debate :)
ctx is the logical view of the device for a user
ctx + ring = timeline
I couldn't remember so I thought it must have been what is documented in
TP_printk. Now I am confused. On one hand it's true, but on the other
ctx/seqno is also a pair as opposed to engine being stuck in the middle.
So ring-ctx-seqno is easier for humans I think. Even since per
ctx/engine seqno space.
Oh and I said I'll rename all those ring= to engine=..
Regards,
Tvrtko
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