[Bug 86145] New: Pipeline statistic counter values for VF always 0

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=86145

            Bug ID: 86145
           Summary: Pipeline statistic counter values for VF always 0
           Product: Mesa
           Version: git
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Drivers/DRI/i965
          Assignee: idr at freedesktop.org
          Reporter: petri.latvala at intel.com
        QA Contact: intel-3d-bugs at lists.freedesktop.org

The performance counter values for VF part of the pipeline (IA_VERTICES_COUNT,
IA_PRIMITIVES_COUNT) are always 0. Gathering of these counters should be
explicitly enabled in VF_STATE.

According to the specs, the same should apply to *_INVOCATION_COUNT counters,
but those come out fine.

As a workaround, INTEL_DEBUG=stats enables the gathering.

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