job_finish(9)

💖 job_finish(9) — the Kernel API Manual, but make it group chat 💖

okay so bestie, you know how we've been living in irq.c? this is one of those little functions that's lowkey doing a LOT. it's from the habanalabs corner of the kernel (the ./drivers/accel/habanalabs/common girlies, you already know), and it's literally the "hey, this job's done, wrap it up" baton pass. ✨

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🌸 SYNOPSIS 🌸

void job_finish (struct hl_device *hdev , u32 cs_seq , struct hl_cq *cq
, ktime_t timestamp );

return type is void, so no exit status gossip, she just does the thing and leaves. main character energy fr fr. 💅

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🎀 ARGUMENTS 🎀

• hdev — pointer to device structure. it's the device, bestie. the whole vibe is anchored here. 🖥️
• cs_seq — command submission sequence. the number that tells you which submission we're talking about. keep it, you'll need it iykyk. 🔢
• cq — completion queue. the queue where the completion goss gets dropped off. 🗣️
• timestamp — interrupt timestamp. when the interrupt hit. yes we're keeping receipts. ⏰

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👑 SEE ALSO 👑

so the kernel file this lives in is ./drivers/accel/habanalabs/common/irq.c — and honestly the whole friend group shows up in here:

• struct hl_eqe_work(9)
• hl_cq_inc_ptr(9)
• hl_eq_inc_ptr(9)
• cs_finish(9)
• hl_irq_handler_cq(9)
• hl_irq_user_interrupt_handler(9)
• hl_irq_user_interrupt_thread_handler(9)
• hl_irq_handler_eq(9)
• hl_irq_handler_dec_abnrm(9)
• hl_cq_init(9)
• hl_cq_fini(9)
• hl_eq_init(9)
• hl_eq_fini(9)

like, that's the squad. 🫶 go read them, they're all linked to the same interrupt-handling storyline and it ATE. 🦋

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ngl, the argument names have spaces before the commas in the synopsis (hdev , cs_seq , cq , timestamp) — that's just how she's written, don't come for her, copy it exactly if you're quoting it. 🙈

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and that's the whole page, bestie — short, sweet, and doing exactly one job: queue job finish work. periodt. 💜

✨ sign-off time ✨ — this one's from ./drivers/accel/habanalabs/common, dated October 2026, and it's the job_finish(9) page out of the Kernel API Manual. mwah. 💋🌸🎀