Comment 22 for bug 2051560

I can see this is available in oracular-proposed's kernel and linux-tools package:

ubuntu@o-dep8:~$ uname -r
6.10.0-15-generic
ubuntu@o-dep8:~$ apt-cache policy linux-tools-$(uname -r)
linux-tools-6.10.0-15-generic:
  Installed: 6.10.0-15.15
  Candidate: 6.10.0-15.15
  Version table:
 *** 6.10.0-15.15 100
        100 http://br.archive.ubuntu.com/ubuntu oracular-proposed/main amd64 Packages
        100 /var/lib/dpkg/status

ubuntu@o-dep8:~$ python3 -c "import perf; [print(c) for c in perf.cpu_map()]"
0

(the python module can be imported and run some trivial code)