xe_guc_ct_restart(9)

✨ xe_guc_ct_restart(9) ✨

okay so this is a page straight out of the Kernel API Manual bestie, and it's about restarting the GuC CT. yes it's niche. yes it's iconic. let's get into it 🫶

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🌸 NAME 🌸

xe_guc_ct_restart — Restart GuC CT 💅

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🦋 SYNOPSIS 🦋

int xe_guc_ct_restart (struct xe_guc_ct *ct );

literally just one argument. one (1) argument. we love a low-effort slay ✨

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🎀 ARGUMENTS 🎀

• ct — the xe_guc_ct, aka the main character of this whole situation 👑

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💖 DESCRIPTION 💖

okay so the whole job here is to restart the GuC CT back to an empty state, and the way that it does it is without issuing a CT register MMIO command. no MMIO, no issue, that's the vibe check of this function 🔥

that's it. that's the whole description. short, sweet, slays 🍓

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👑 RETURN 👑

• 0 on success 🌈
• a negative errno on failure 😭

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/xe/xe_guc_ct.c
• GuC CTB Blob(9)
• xe_guc_ct_queue_proc_time_jiffies(9)
• xe_guc_ct_init_post_hwconfig(9)
• xe_guc_ct_enable(9)
• xe_guc_ct_disable(9)
• xe_guc_ct_flush_and_stop(9)
• xe_guc_ct_stop(9)
• xe_guc_ct_runtime_suspend(9)
• xe_guc_ct_runtime_resume(9)
• xe_guc_ct_send(9)
• xe_guc_ct_send_recv(9)
• xe_guc_ct_fast_path(9)
• xe_guc_ct_snapshot_capture(9)
• xe_guc_ct_snapshot_print(9)
• xe_guc_ct_snapshot_free(9)
• xe_guc_ct_print(9)

that's a whole friend group right there, no cap 🧚💜

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okay bestie that's the page!! this one's brought to you by the fine people at ./drivers/gpu/drm/xe, dated October 2026 — go drink some water and go read some kernel source, mwah 💋💖