libpfm_intel_icx_unc_upi - support for Intel IcelakeX Server UPI uncore PMU

       Stephane Eranian <eranian@gmail.com>

                                                 November, 2023                                        LIBPFM(3)

       The  library  supports  the  Intel  IcelakeX  UPI  (Ultra  Path  Interconnect)  uncore PMU.  Each UPI PMU
       implements 4 generic counters.

       The following modifiers are supported on Intel IcelakeX UPI uncore PMU:

       e      Enable edge detection, i.e., count only when there is a state transition from no occurrence of the
              event to at least one occurrence. This modifier must be combined with  a  threshold  modifier  (t)
              with a value greater or equal to one.  This is a boolean modifier.

       t      Set  the  threshold  value.  When  set  to  a non-zero value, the counter counts the number of IRP
              clockticks in which the number of occurrences of the event is greater or equal to  the  threshold.
              This  is  an  integer  modifier with values in the range [0:255].  i Invert the threshold (t) test
              from strictly greater than to less or equal to. This is a boolean modifier.

       libpfm_intel_icx_unc_upi - support for Intel IcelakeX Server UPI uncore PMU

#include<perfmon/pfmlib.h>PMUname:icx_unc_upi[0-3]PMUdesc:IntelIcelakeXUPIuncorePMU