spr_idle_state_table_update(9)

💤 spr_idle_state_table_update(9) 💤

okay bestie, welcome to the Kernel API Manual ✨ this page is all about spr_idle_state_table_update, and it’s lowkey a tiny little tune-up for Sapphire Rapids Xeon idle states 🦋 no cap.

✨ NAME ✨

• spr_idle_state_table_update — Adjust Sapphire Rapids Xeon idle states table.

🫶 SYNOPSIS 🫶

void spr_idle_state_table_update (void );

that’s the whole signature, periodt 💅

💅 ARGUMENTS 💅

• void — no arguments 🫶 literally none, bestie.

🌸 DESCRIPTION 🌸

okay so by default, the C6 state assumes the absolute worst-case scenario of package C6 😭.

however, if PC6 is disabled in BIOS, this function updates the numbers so they match core C6 instead 💅✨.

🔥 SEE ALSO 🔥

Kernel file: ./drivers/idle/intel_idle.c 👀

• 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)
• skx_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)

okay that’s the whole page, bestie!! signing off from the ./drivers/idle source, October 2026, on the spr_idle_state_table_update(9) page 🫶💖🌸