STRUCT XE_PREEMPT_FENCE(9)

💖 struct xe_preempt_fence(9) 💖

okay bestie, welcome to the Kernel API Manual page for struct xe_preempt_fence(9) — the Xe preempt fence. no cap, we are getting into the struct details and it’s lowkey iconic. 🦋

🌸 NAME 🌸

struct xe_preempt_fence - Xe preempt fence. periodt. 💅

✨ SYNOPSIS ✨

       struct xe_preempt_fence {
           struct dma_fence base;
           struct list_head link;
           struct xe_exec_queue *q;
           struct work_struct preempt_work;
           spinlock_t lock;
           int error;
        };

That’s the whole struct shape, bestie — keep it exactly like that. 🫶

🎀 Members 🎀

• base — dma fence base. 💖
• link — link into list of pending preempt fences. 🔗
• q — exec queue for this preempt fence. 👑
• preempt_work — work struct which issues preemption. 🛠️
• lock — dma-fence fence lock. 🔒
• error — preempt fence is in error state. 💀

💫 Description 💫

The description here is short and a lil mysterious, ngl: hardware and triggers a callback once the xe_engine is complete. 😭 That’s what it says, bestie — keeping it exactly as-is. ✨

🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_preempt_fence_types.h — go look, iykyk. 🧚

later, bestie 🫶 — this page is from ./drivers/gpu/drm/xe, dated October 2026, and it’s the struct xe_preempt_fence(9) page. 💖🎀