Uncore events show "event syntax error" in ‘perf stat’ output on several recent AMD EPYC processors

Issue

• Uncore events produce an "event syntax error" in the output of the perf stat command on AMD EPYC 7003, 8004, 9004, and 9005 Series processors.
• Uncore events in Red Hat Enterprise Linux (RHEL) measure the functions of a processor that are outside of a process core but within the CPU package.
• This issue is seen when running the profiler_hardware_uncore test (part of the redhat-certification-hardware certification suite) on any system with CPU(s) from these processor families.

Examples:

perf stat -e amd_df/event=0..0x3fff,umask=0..0xfff/modifier -o hwcert-perf.log --append -x';' -a -- sleep 1
stderr:
event syntax error: 'amd_df/event=0..0x3fff,umask=0..0xfff/modifier'
                     \___ Bad event or PMU

Unable to find PMU or event on a PMU of 'amd_df'

event syntax error: 'amd_df/event=0..0x3fff,umask=0..0xfff/modifier'
                                  \___ expected numeric value

event syntax error: 'amd_df/event=0..0x3fff,umask=0..0xfff/modifier'
                                  \___ expected numeric value
Run 'perf list' for a list of valid events

 Usage: perf stat [<options>] [<command>]

    -e, --event <event>   event selector. use 'perf list' to list available events
returned:
129
event syntax error: 'amd_df/event=0..0x3fff,umask=0..0xfff/modifier'
                     \___ Bad event or PMU

Unable to find PMU or event on a PMU of 'amd_df'

event syntax error: 'amd_df/event=0..0x3fff,umask=0..0xfff/modifier'
                                  \___ expected numeric value

event syntax error: 'amd_df/event=0..0x3fff,umask=0..0xfff/modifier'
                                  \___ expected numeric value
Run 'perf list' for a list of valid events

 Usage: perf stat [<options>] [<command>]

    -e, --event <event>   event selector. use 'perf list' to list available events
perf stat -e amd_iommu/devid=0..0xffff,devid_mask=0..0xffff,pasid_mask=0..0xfffff,.../modifier[Raw -o hwcert-perf.log --append -x';' -a -- sleep 1
-----------------------------------------------------------------------------
perf stat -e amd_iommu/devid=0..0xffff,devid_mask=0..0xffff,pasid_mask=0..0xfffff,.../modifier[Raw -o hwcert-perf.log --append -x';' -a -- sleep 1
stderr:
event syntax error: '...0xfffff,.../modifier[Raw'
                                  \___ Unrecognized input
Run 'perf list' for a list of valid events

 Usage: perf stat [<options>] [<command>]

    -e, --event <event>   event selector. use 'perf list' to list available events
returned:
129
event syntax error: '...0xfffff,.../modifier[Raw'
                                  \___ Unrecognized input
Run 'perf list' for a list of valid events

 Usage: perf stat [<options>] [<command>]

    -e, --event <event>   event selector. use 'perf list' to list available events
perf stat -e amd_l3/enallslices,event=0..255,sliceid=0..7,.../modifier[Raw -o hwcert-perf.log --append -x';' -a -- sleep 1
-----------------------------------------------------------------------------
perf stat -e amd_l3/enallslices,event=0..255,sliceid=0..7,.../modifier[Raw -o hwcert-perf.log --append -x';' -a -- sleep 1
stderr:
event syntax error: '..eid=0..7,.../modifier[Raw'
                                  \___ Unrecognized input
Run 'perf list' for a list of valid events

 Usage: perf stat [<options>] [<command>]

    -e, --event <event>   event selector. use 'perf list' to list available events
returned:
129
event syntax error: '..eid=0..7,.../modifier[Raw'
                                  \___ Unrecognized input
Run 'perf list' for a list of valid events

 Usage: perf stat [<options>] [<command>]

    -e, --event <event>   event selector. use 'perf list' to list available events