xe_lrc_init_seqno_fence(9)

💅 xe_lrc_init_seqno_fence — bestie, let's init a fence

okay so this is a page from the Kernel API Manual, and it's all about xe_lrc_init_seqno_fence — literally the glow-up ritual for an lrc seqno fence ✨ buckle up 🎀

---

✨ NAME ✨

xe_lrc_init_seqno_fence — initialize an lrc seqno fence 🦋

---

🌸 SYNOPSIS 🌸

void xe_lrc_init_seqno_fence (struct xe_lrc *lrc , struct dma_fence
*fence );

no cap, that's the whole signature 💅

---

🎀 ARGUMENTS 🎀

• lrc — pointer to the lrc, bestie. this is the main character 👑
• fence — pointer to the fence you're about to initialize 🫶

---

💖 DESCRIPTION 💖

so what this does: it initializes a pre-allocated lrc seqno fence. that's the vibe. once it's initialized, the fence is subject to normal dma-fence refcounting — meaning the refcount rules apply to it like they do to every other dma-fence out there. fr fr, that's it, that's the whole thing 🌈

ngl, "pre-allocated" is doing a lot of work in that sentence — the fence already exists, you're just giving it its little moment 💀

---

🔥 SEE ALSO 🔥

like, go read these too, they're iconic ✨ the kernel file in question is ./drivers/gpu/drm/xe/xe_lrc.c:

• xe_gt_lrc_hang_replay_size(9)
• xe_lrc_reg_size(9)
• xe_lrc_engine_state_size(9)
• xe_lrc_ctx_timestamp_ggtt_addr(9)
• xe_lrc_ctx_timestamp_udw_ggtt_addr(9)
• xe_lrc_ctx_timestamp(9)
• xe_lrc_queue_timestamp(9)
• xe_lrc_ctx_job_timestamp_ggtt_addr(9)
• xe_lrc_ctx_job_timestamp(9)
• xe_default_lrc_update_memirq_regs_with_address(9)
• xe_lrc_update_memirq_regs_with_address(9)
• xe_lrc_setup_wa_bb_with_scratch(9)
• xe_lrc_set_multi_queue_priority(9)
• xe_lrc_create(9)
• xe_lrc_destroy(9)
• xe_lrc_update_hwctx_regs_with_address(9)
• xe_lrc_alloc_seqno_fence(9)
• xe_lrc_free_seqno_fence(9)
• xe_lrc_engine_id(9)
• xe_lrc_timestamp(9)
• xe_lrc_update_timestamp(9)
• xe_lrc_ring_is_idle(9)

---

and that's the page, bestie 🫶 this one lives over in ./drivers/gpu/drm/xe (that's the source/version vibe), dated October 2026, and it's filed under xe_lrc_init_seqno_fence(9) — periodt 💅✨