intel_engine_reset(9)

💅 intel_engine_reset — a Kernel API Manual moment

okay so bestie, welcome to intel_engine_reset(9), straight out of the Kernel API Manual, and honestly? this one's kind of a baddie. it's the "your GPU engine is having a meltdown, let's fix it" function. 🫶

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✨ NAME ✨

intel_engine_reset — reset a GPU engine so you can recover from a hang. that's it. that's the whole vibe. your engine got stuck, you hit it with the reset, we move on. 💅

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🌸 SYNOPSIS 🌸

int intel_engine_reset (struct intel_engine_cs *engine , const char *msg );

literally just two args, no drama, returns an int. we love a simple signature. ✨

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🎀 ARGUMENTS 🎀

• engine — the engine you wanna reset. the main character of this whole operation, fr fr. 👑
• msg — the reason for the GPU reset. think of it as the "why are we here" note. or pass NULL for no drm_notice. yep, NULL = keep it quiet, no notice. 🙈

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🦋 DESCRIPTION 🦋

okay so this resets one specific GPU engine. super useful when you detect a hang — like, your engine is just sitting there not doing its job, and you're like "girl, get up." 😭 it returns zero on a successful reset, or otherwise an error code. no cap, that's the return contract. ⭐

here's the procedure, step by step, in order:

1. it identifies the request that caused the hang, and that request gets dropped. bye bestie 👋
2. it resets the engine — which will force the engine to idle. forced relaxation time. 🧘
3. it re-inits / configures the engine. fresh fit, new era. 💖

ngl, the order matters here — drop the bad request first, then reset, then re-init. the described procedure is exactly those three steps, don't shuffle them. 🌈

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/i915/gt/intel_reset.c
• intel_gt_reset(9)
• intel_gt_reset_all_engines(9)
• intel_gt_reset_engine(9)
• intel_gt_handle_error(9)

go read those if you want the whole friend group. iykyk. 💜

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🍓 quick vibe check: this page lives at ./drivers/gpu/drm/i915/gt, dated October 2026. that's the source and the version-date combo, bestie — don't lose 'em.

okay that's the whole page, you ate that. slay, periodt, go reset an engine responsibly 💅✨🎀