Quoting Lionel Landwerlin (2017-12-19 01:06:18)
> With changes going to drm-tip, the tracepoints field locations are
> going to change. This change introduces a tracepoint parser (using a
> peg parser) which lets us figure out field positions on the fly.
>
> v2: Fix automake build (Lionel)
>
> Signed-off-by: Lionel Landwerlin <lionel.g.landwer...@intel.com>
> ---
> @@ -292,9 +394,13 @@ static int wait_end(struct gpu_perf *gp, const void
> *event)
> const struct sample_event *sample = event;
> struct gpu_perf_time *wait, **prev;
u32 engine = READ_TP_FIELD_U32(sample, TP_GEM_REQUEST_WAIT_END, ring);
u32 context = READ_TP_FIELD_U32(sample, TP_GEM_REQUEST_WAIT_END, ctx);
u32 seqno = READ_TP_FIELD_U32(sample, TP_GEM_REQUEST_WAIT_END, seqno);
> - for (prev = &gp->wait[sample->raw[ENGINE]]; (wait = *prev) != NULL;
> prev = &wait->next) {
> - if (wait->context != sample->raw[CTX] ||
> - wait->seqno != sample->raw[CTX_SEQNO])
> + for (prev = &gp->wait[READ_TP_FIELD_U32(sample,
> TP_GEM_REQUEST_WAIT_END, ring)];
> + (wait = *prev) != NULL;
> + prev = &wait->next) {
> + if (wait->context != READ_TP_FIELD_U32(sample,
> +
> TP_GEM_REQUEST_WAIT_END, ctx) ||
> + wait->seqno != READ_TP_FIELD_U32(sample,
> +
> TP_GEM_REQUEST_WAIT_END, seqno))
> continue;
Looks very useful, thanks!
-Chris
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