cpu_exceeded(9)

💅 cpu_exceeded — bestie, is this CPU literally overheating or what

okay so this is a page from the Kernel API Manual (yes, the kernel has lore and we're reading it 🎀), and it's about one tiny little vibe-check function. let's get into it.

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✨ NAME ✨

cpu_exceeded — check whether a CPU core is outside its limits

like, is this core behaving or is it Doing Too Much? that's the whole job. 🫶

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🌸 SYNOPSIS 🌸

bool cpu_exceeded (struct ips_driver *ips , int cpu );

that's it. two arguments, one bool back. short and iconic, we love a low-effort king 👑

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🦋 ARGUMENTS 🦋

• ips — the IPS driver struct. your main character data structure, the whole context basically 💖
• cpu — the CPU number you wanna check. just point at the core and be like "u good?" 🙈

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⭐ DESCRIPTION ⭐

so what it actually does: it checks a given CPU's average temp or power and tells you if it's over its limit. that's it, that's the function 💅

temp or power, one of the two (or honestly whichever one is being dramatic today), and it's comparing the average against the max. no cap, that's the whole description. simple. clean. iconic.

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🔥 RETURN 🔥

• true — if the temp or power has exceeded its maximum 😭 (the core is lowkey cooked)
• false — otherwise ✨ (we're fine, everything's fine)

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👑 SEE ALSO 👑

okay this is the part where the manpage goes feral and lists literally everyone in the friend group. no gatekeeping here, it's giving full ensemble cast 🌈

• Kernel file ./drivers/platform/x86/intel_ips.c
• ips_cpu_busy(9)
• ips_cpu_raise(9)
• ips_cpu_lower(9)
• do_enable_cpu_turbo(9)
• ips_enable_cpu_turbo(9)
• do_disable_cpu_turbo(9)
• ips_disable_cpu_turbo(9)
• ips_gpu_busy(9)
• ips_gpu_raise(9)
• ips_gpu_lower(9)
• ips_enable_gpu_turbo(9)
• ips_disable_gpu_turbo(9)
• mcp_exceeded(9)
• mch_exceeded(9)
• verify_limits(9)
• update_turbo_limits(9)
• ips_adjust(9)
• ips_monitor(9)
• ips_irq_handler(9)
• ips_detect_cpu(9)
• ips_get_i915_syms(9)

ngl bestie, if cpu_exceeded returns true you should probs go read ips_adjust(9) and friends. the whole turbo/limit squad is right there. iykyk 🧚

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🌸 okay that's the page!! it lives in ./drivers/platform/x86 and it was last touched October 2026 — so go forth, vibe-check your cores, and stay under your limits fr fr 💜🎀