Regression: missing Zen 3 data fabric perf events

[Bruce Merry]

With 5.13.0-52-generic, "perf list" includes the following events:

data fabric:
  dram_channel_data_controller_0
       [Unit: amd_df]
  dram_channel_data_controller_1
       [Unit: amd_df]
  dram_channel_data_controller_2
       [Unit: amd_df]
  dram_channel_data_controller_3
       [Unit: amd_df]
...

With 5.15.0-46-generic the events are missing. This is occurring on Epyc 7003 processors (family 25, model 1, stepping 1).

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: linux-tools-5.15.0-46-generic 5.15.0-46.49~20.04.1
ProcVersionSignature: Ubuntu 5.15.0-46.49~20.04.1-generic 5.15.39
Uname: Linux 5.15.0-46-generic x86_64
NonfreeKernelModules: nvidia_peermem nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.24
Architecture: amd64
CasperMD5CheckResult: skip
Date: Wed Aug 24 12:08:11 2022
SourcePackage: linux-hwe-5.15
UpgradeStatus: No upgrade log present (probably fresh install)