skx_idle_state_table_update(9)

💅 skx_idle_state_table_update(9) — Kernel API Manual 🦋

ok so bestie, this one lives in the Kernel API Manual and it's literally a tiny little function from the intel_idle corner of the kernel, and the whole vibe is "the BIOS did something goofy, so we're gonna fix the table." no cap, that's it. ✨

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🎀 NAME 🎀

skx_idle_state_table_update — adjust the SKX/CLX idle states table. that's the whole assignment, and she ate. 💅

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✨ SYNOPSIS ✨

void skx_idle_state_table_update (void );

like, that's literally the whole signature. so clean. 🫶

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🌸 ARGUMENTS 🌸

• void — no arguments. zero. nada. she takes nothing, she needs nothing, she's lowkey thriving on her own. 💀

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💖 DESCRIPTION 💖

okay so picture this: you're on a Sky Lake or Cascade Lake Xeon, and the BIOS has gone and disabled PC6. iconic of it, honestly, but it means the idle states table needs a little tune-up, and this is the function that does the tune-up. 🔥

here's the actual tea: it uses the CC6 + PC0 latency, and then it uses 3 times of that latency for target_residency. yes, three. triple. the math is mathing. 🧮✨

and why, you ask? because that's consistent with how the intel_idle driver uses _CST to set the target_residency — so we're just matching the established behavior instead of inventing our own whole personality. periodt. 👑

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🌈 SEE ALSO 🌈

• the kernel file ./drivers/idle/intel_idle.c — that's the home base, go say hi 🏠
• intel_idle(9)
• intel_idle_s2idle(9)
• intel_idle_cst_usable(9)
• ivt_idle_state_table_update(9)
• irtl_2_usec(9)
• bxt_idle_state_table_update(9)
• sklh_idle_state_table_update(9)
• skx_is_pc6_disabled(9)
• spr_idle_state_table_update(9)
• drop_pc6_redundant_cstates(9)
• byt_cht_auto_demotion_disable(9)
• intel_idle_cpuidle_driver_init(9)
• intel_idle_cpu_init(9)
• intel_idle_cpuidle_devices_uninit(9)
• validate_cmdline_cstate(9)
• cmdline_table_adjust(9)

no gatekeeping here, she shares the whole friend group. 💜🦋

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🧚 quick reminder bestie: the intel_idle driver reads _CST to set target_residency, and this function is deliberately staying consistent with that. no invented behavior, no extra lore, iykyk. 🎀

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and that's the whole page! 🌸 this came out of ./drivers/idle (that's the source/version, mwah 💋) back in October 2026, and the manual name for the record is skx_idle_state_table_update(9). hope that was useful, love u, bye! 🫶💖⭐