cppc_perf_ctrs_in_pcc_cpu(9)

📦 version 7.3.1, in nixpkgs unstable

💅 cppc_perf_ctrs_in_pcc_cpu(9) 💅

okay bestie, welcome to the Kernel API Manual — yes, that's the manual name, we're fancy here ✨ — and today's main character is cppc_perf_ctrs_in_pcc_cpu, a tiny little bool-returning icon whose whole personality is asking one (1) question about performance counters and PCC regions. no cap, that's the whole vibe. 🎀

✨ NAME ✨

cppc_perf_ctrs_in_pcc_cpu — literally just checks whether any of a CPU's perf counters live in PCC. that's it. that's the function. 🦋

🌸 SYNOPSIS 🌸

bool cppc_perf_ctrs_in_pcc_cpu (unsigned int cpu );

look at her. one argument, returns a bool. lowkey minimalist queen 👑

💖 ARGUMENTS 💖

  • cpu — the CPU you wanna snoop on, i.e. the one whose perf counters you're checking. bestie, you gotta tell her which CPU. 🙈

⭐ RETURN ⭐

  • true — yup, at least one of the counters is hanging out in PCC regions 🫶
  • false — nope, none of them are, sad but valid 💀

that's the whole vibe check: true if any of the counters are in PCC regions, false otherwise. periodt.

🦋 SEE ALSO 🦋

the whole friend group 🫂 — and don't forget the kernel file they all live in: ./drivers/acpi/cppc_acpi.c 📁

ngl that's a lot of see-also's — she's not clingy, she's just well-connected 💅

🎀 sign-off 🎀

this little baddie lives in ./drivers/acpi, dated October 2026, and answers to the name cppc_perf_ctrs_in_pcc_cpu(9). slay, go read your counters, love u, bye 💜🌈

📦 where this page comes from