[igt-dev] [PATCH i-g-t] lib/i915/perf: rework perf counters equations

[Petri Latvala]

On Thu, Sep 10, 2020 at 01:15:32PM +0300, Lionel Landwerlin wrote:
> Working with an offset means we can have the PERFCNT snapshots stored
> at an offset in the existing accumulator rather than having a specific
> accumulator just for them.
> 
> This isn't really useful for IGT because it only looks at the OA
> buffer where those registers aren't stored, but it is useful for perf
> queries in Mesa.
> 
> This bumps the version of the i915_perf library to reflect the API
> change (see perf.h).

For older versions of Mesa that cannot use this version, what's the
method of getting a compatible i915-perf? Is it "checkout this older
git commit"?


-- 
Petri Latvala