dma_fence_describe(9)

✨ dma_fence_describe(9) ✨

okay so bestie, welcome to the dma_fence_describe page from the Kernel API Manual — this is the one that's literally just "dump the fence's whole personality into a `seq_file" 💅

🌸 NAME 🌸

dma_fence_describe — dump a fence description into a seq_file

🦋 SYNOPSIS 🦋

void dma_fence_describe (struct dma_fence *fence , struct seq_file *seq
);

🎀 ARGUMENTS 🎀

• fence — the fence you want to describe, like, the main character of this whole operation 👑
• seq — the seq_file that the textual description gets dropped into ✨

💖 DESCRIPTION 💖

So basically: you take a fence, you take a seq_file, and you dump a textual description of the fence and it's state into that seq_file. That's it, that's the whole gig. No cap, that's the function 🫶

ngl it's a tiny little guy — but don't sleep on it, when you're debugging DMA fences this is exactly the thing you want in your group chat.

🔥 SEE ALSO 🔥

• Kernel file ./drivers/dma-buf/dma-fence.c
• DMA fences overview(9)
• fence cross-driver contract(9)
• dma_fence_get_stub(9)
• dma_fence_allocate_private_stub(9)
• dma_fence_context_alloc(9)
• fence signalling annotation(9)
• dma_fence_begin_signalling(9)
• dma_fence_end_signalling(9)
• dma_fence_signal_timestamp_locked(9)
• dma_fence_signal_timestamp(9)
• dma_fence_signal_locked(9)
• dma_fence_check_and_signal_locked(9)
• dma_fence_check_and_signal(9)
• dma_fence_signal(9)
• dma_fence_wait_timeout(9)
• dma_fence_release(9)
• dma_fence_free(9)
• dma_fence_enable_signaling(9)
• dma_fence_add_callback(9)
• dma_fence_get_status(9)
• dma_fence_remove_callback(9)
• dma_fence_default_wait(9)
• dma_fence_wait_any_timeout(9)
• deadline hints(9)
• dma_fence_set_deadline(9)
• dma_fence_init(9)
• dma_fence_init64(9)
• dma_fence_driver_name(9)
• dma_fence_timeline_name(9)

and that's the whole page, bestie — go read the other thirty fence functions, iykyk 🧚

<x>—</x>

sign-off szn: this li'l baddie lives in ./drivers/dma-buf, dated October 2026, and answers to the name dma_fence_describe(9) ⭐