dev_pm_opp_x...rmance_state(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dev_pm_opp_xlate_performance_state — the Kernel API Manual, bestie edition 🎀

okay so real talk, the header got chopped on this one (it's giving dev_pm_opp_x...rmance_state(9), iconic truncation honestly 🙈), but the full name is dev_pm_opp_xlate_performance_state and yes we're translating performance states today. it lives in the Kernel API Manual btw, section 9, iykyk ✨

🌸 NAME 🌸

dev_pm_opp_xlate_performance_state — find the required OPP's pstate for src_table. that's the whole mission, no cap 🫶

✨ SYNOPSIS ✨

int dev_pm_opp_xlate_performance_state (struct opp_table *src_table ,
struct opp_table *dst_table , unsigned int pstate );

look at that signature, it ate 💅

🦋 ARGUMENTS 🦋

  • src_table — the OPP table that has dst_table as one of its required OPP tables. main character table, fr.
  • dst_table — the required OPP table of the src_table. it's the plus-one 🌈
  • pstate — the current performance state of src_table. currently the vibe we're working with ⭐

💖 DESCRIPTION 💖

okay so what this bad boy does: it returns the pstate of the OPP (the one hanging out in dst_table) that's pointed out by the "required-opps" property of the OPP (the one living in src_table) which has its performance state set to pstate.

literally it's matchmaking: you give it a pstate from src_table, it follows the "required-opps" breadcrumb, and hands you back the matching pstate over in dst_table. lowkey obsessed with it 😭✨

🔥 RETURN 🔥

  • Zero or positive performance state on success — slay 🎉
  • negative value on errors — 💀 (that's the failure path, handle it pls, don't just ignore it)

👑 SEE ALSO 👑

bestie, the whole OPP friend group showed up for this one, and every single one of them is linked. no gatekeeping 🫶 all of these live in the kernel file ./drivers/opp/core.c:

ngl the manpage name is literally truncated in the official header (dev_pm_opp_x...rmance_state(9)) — that's not me being lazy, that's just how it ships 💀

and that's the page! source is ./drivers/opp, dated October 2026, and the whole thing is filed under dev_pm_opp_x...rmance_state(9) 💜 bye bestie, go translate some pstates ✨🧚‍♀️

📦 where this page comes from