>Четверг, 29 марта 2018, 21:46 +03:00 от Tvrtko Ursulin <tursu...@ursulin.net>:
>
>+#define engine_ptr(engines, n) \
>+((struct engine *)((unsigned char *)(&engines->engine) + (n) * sizeof(struct
>engine)))
I think (&engines->engine + (n)) is easier to read.
>+if (fd < 0 && !cnt->optional)
>+return -1;
I've tried to run it on Skylake on Linux 4.16, and intel_gpu_top is working, as
long as
I remove these lines. Otherwise it fails while trying "vcs1". Error message
says about
Linux 4.16, which is a bit confusing.
There are code that sets and tests "present" field of struct pmu_counter. So,
I guess, it's fine to remove the code, and thus make all counters optional?
>+
>+if (!cnt->present) {
>+strncpy(buf, "---", bufsz);
> return;
>+}
If you decide to make all counters optional, this will be used for "busy"
numbers
too. But "busy" is 6 characters wide, unlike "sema" and "wait", which are 3
each.
>--
>2.14.1
>
---
Rinat
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