drop_pc6_redundant_cstates(9)

✨ drop_pc6_redundant_cstates ✨

okay so bestie, welcome to the drop_pc6_redundant_cstates(9) page 💅 this is a kernel API manual situation, and honestly? it's giving "tiny function, big vibes." let's get into it 🫶

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🌸 NAME 🌸

drop_pc6_redundant_cstates — drops the C-states that become redundant when PC6 is disabled.

like, it's literally a cleanup crew for your idle states 🧹✨

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🎀 SYNOPSIS 🎀

void drop_pc6_redundant_cstates (struct cpuidle_state *states );

returns nothing, obviously. it's void. it just does the thing and leaves 😌

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🦋 ARGUMENTS 🦋

• states — the idle states table you're about to modify. that's the whole assignment. hand it over and let the function cook 🔥

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💜 DESCRIPTION 💜

okay so here's the tea ☕ when PC6 is disabled in the BIOS, some C-states that only ever existed to make PC6 entry happen — things like C6P or C6SP — end up being literally identical to shallower C-states like C6. Which means they're redundant. dead weight. not pulling their weight. 💀

so this function drops them. slay. 👑

heads up bestie: this should be called only on systems with multiple C6 flavors. like, don't just call it wherever. know your system's vibe first 🙈

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🌈 SEE ALSO 🌈

peep these, iykyk 🧚:

• 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)
• spr_idle_state_table_update(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)

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and that's the whole page, bestie 🍓 before you go — this one lives in ./drivers/idle, it's from October 2026, and it's part of the Kernel API Manual. consider yourself fully briefed 💖✨👑