amd_hfi_offline(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, you opened the amd_hfi_offline(9) page from the Kernel API Manual and honestly? iconic. 💅✨ let’s get into it.

🌸 NAME 🌸

amd_hfi_offline — disable workload classification on @cpu 💖

✨ SYNOPSIS ✨

int amd_hfi_offline (unsigned int cpu );

🎀 ARGUMENTS 🎀

  • cpu — the CPU in which the workload classification will be disabled, bestie. that’s the whole assignment. 🫶

🦋 DESCRIPTION 🦋

okay so what it does: remove cpu from those covered by its HFI instance. lowkey simple, highkey important. periodt. 💅

🔥 RETURN 🔥

  • 0 on success 🎉
  • negative error code on failure 😭

👑 SEE ALSO 👑

  • Kernel file: ./drivers/platform/x86/amd/hfi/hfi.c
  • struct amd_shmem_info(9)
  • struct amd_hfi_classes(9)
  • struct amd_hfi_cpuinfo(9)
  • amd_hfi_online(9)

shoutout to source/version ./drivers/platform/x86/amd/hfi, dated October 2026, for this amd_hfi_offline(9) page — byeee bestie 🫶💖🌸

📦 where this page comes from