xe_exec_queue_is_idle(9)

💅 xe_exec_queue_is_idle(9)

okay so bestie, we're in the Kernel API Manual today (section 9, very fancy of us 🎀) and the star of the show is xe_exec_queue_is_idle — say that five times fast, iykyk.

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✨ NAME ✨

xe_exec_queue_is_idle — literally just tells you whether an exec_queue is idle. that's the whole vibe check. 😌

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🌸 SYNOPSIS 🌸

bool xe_exec_queue_is_idle (struct xe_exec_queue *q );

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🦋 ARGUMENTS 🦋

• q — The exec_queue. the main character of this function, the one we're checking on 🫶

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💖 DESCRIPTION 💖

okay so here's the tea ☕ and it's a little messy ngl:

FIXME: We still need to figure out what to use as the short-lived timeline lock for the exec_queues, so that the return value of this function actually becomes more than just an advisory snapshot in time. 💀

like, right now it's giving "screenshot of a vibe" not "certified truth," you know?

the timeline lock must protect the seqno from racing submissions on the same exec_queue. typically that lock is vm->resv, but user-created timeline locks use the migrate vm and never grab the migrate vm->resv — so yeah, we have a race there. 😭 no cap, that's a real one.

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⭐ RETURN ⭐

• True if the exec_queue is idle 👑
• false otherwise 🙈

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🔥 SEE ALSO 🔥

Kernel file ./drivers/gpu/drm/xe/xe_exec_queue.c — and honestly, the whole friend group showed up for this one:

• Execution Queue(9)
• Multi Queue Group(9)
• xe_exec_queue_get_lrc(9)
• xe_exec_queue_lrc(9)
• xe_exec_queue_create(9)
• xe_exec_queue_create_class(9)
• xe_exec_queue_create_bind(9)
• xe_exec_queue_destroy(9)
• xe_exec_queue_fini(9)
• xe_exec_queue_assign_name(9)
• xe_exec_queue_lookup(9)
• xe_exec_queue_device_get_max_priority(9)
• xe_exec_queue_set_property_ioctl(9)
• xe_exec_queue_create_ioctl(9)
• xe_exec_queue_get_property_ioctl(9)
• xe_exec_queue_is_lr(9)
• xe_exec_queue_update_run_ticks(9)
• xe_exec_queue_kill(9)
• xe_exec_queue_destroy_ioctl(9)
• xe_exec_queue_last_fence_put(9)
• xe_exec_queue_last_fence_put_unlocked(9)
• xe_exec_queue_last_fence_get(9)
• xe_exec_queue_last_fence_get_for_resume(9)
• xe_exec_queue_last_fence_set(9)
• xe_exec_queue_tlb_inval_last_fence_put(9)
• xe_exec_queue_tlb_inval_last_fence_put_unlocked(9)
• xe_exec_queue_tlb_inval_last_fence_get(9)
• xe_exec_queue_tlb_inval_last_fence_set(9)
• xe_exec_queue_contexts_hwsp_rebase(9)

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and that's the page, bestie 🧚 this little drop came out of ./drivers/gpu/drm/xe, stamped October 2026, and it answers to the name xe_exec_queue_is_idle(9) — slay, stay idle, periodt. 💜✨