On Thu, Oct 20, 2016 at 11:30:36AM +0200, Jan Glauber wrote: > Sorry for the long time it took for re-cooking this patch set. > The v3 should address all of Marks previous comments, things I didn't > change are listed below. > > Not changed: > - Stick to NUMA node ID to detect the socket a device belongs to but made > uncore depend on CONFIG_NUMA. > - Stick to initcall for uncore framework because it is easier to do the > scanning for the same type of PCI devices, also I don't know if the PCI > layer > would allow for several drivers to register for the same device ID. > > Note: > I'm using perf_sw_context in difference to perf_invalid_context > (see WARN_ON in perf_pmu_register). Reason is that with perf_invalid_context > add() is never called and the counter results are shown as "unsupported" by > perf. With perf_sw_context everything works as expected.
I take it you were tryign to open per-task, non system-wide events? As a shared resource, per-task events do not make sense, and thus using perf_sw_context does not make sense. I take it If you expose a cpumask, and open the event in system-wide mode (passing '-a' to perf tool), things should work even if using perf_invalid_context. Thanks, Mark.
