intel_engine_is_idle(9)

💅 intel_engine_is_idle(9) — a kernel API manual moment

okay so first things first, bestie: this is a section 9 page from the Kernel API Manual, and the star of the show is intel_engine_is_idle. yes, the whole page is about ONE function. and honestly? she deserves it. ✨

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🎀 NAME 🎀

intel_engine_is_idle — reports whether the engine has finished processing all the work. like, all of it. every last crumb. no cap. 🍓

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✨ SYNOPSIS ✨

bool intel_engine_is_idle(struct intel_engine_cs *engine);

that's it. that's the whole vibe check. one function, takes one pointer, hands you back a bool. iconic. 👑

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🌸 ARGUMENTS 🌸

• engine — the intel_engine_cs in question. literally just the engine you're asking about. that's the whole thing. 🫶

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🦋 DESCRIPTION 🦋

so here's the tea: this returns true if there are no requests pending, nothing left to be submitted to hardware, and the engine is idle.

three little conditions, all gotta be true, no exceptions. think of it as the engine saying "nope, i'm chillin', nothing in my queue, nothing headed to the hardware, we're good." 😌✨

if it returns true — slay, she's idle. if not… well. she's busy. she said not right now. 💅

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💜 SEE ALSO 💜

the kernel file that lives here, bestie:

./drivers/gpu/drm/i915/gt/intel_engine_cs.c

and the whole friend group of related pages, all of them iconic in their own right:

• intel_engine_context_size(9)
• intel_engines_release(9)
• intel_engines_init_mmio(9)
• intel_engine_cleanup_common(9)
• intel_engine_resume(9)
• intel_engine_get_busy_time(9)

go read them. iykyk. 📚💖

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and that's the page, babes 🧚 — brought to you from ./drivers/gpu/drm/i915/gt, dated October 2026, filed under intel_engine_is_idle(9). see you in the group chat, mwah 💋🌈