evergreen_d...ce_ring_emit(9)

💖 evergreen_d...ce_ring_emit(9) 💖

okay so bestie, welcome to the Kernel API Manual page for evergreen_d...ce_ring_emit — yes that's the abbreviated form, the full name is evergreen_dma_fence_ring_emit and it lives in the Radeon GPU driver corner of the kernel. pull up a chair, this one's short but iconic ✨

---

🦋 NAME 🦋

evergreen_dma_fence_ring_emit — literally just emit a fence on the DMA ring, that's the whole job, no cap 💅

---

🌸 SYNOPSIS 🌸

void evergreen_dma_fence_ring_emit (struct radeon_device *rdev , struct
radeon_fence *fence );

it returns void, meaning it gives you nothing back — the side effects are the whole point, main character energy honestly 👑

---

🎀 ARGUMENTS 🎀

• rdev — a radeon_device pointer, aka your ticket to the whole Radeon device struct 🫶
• fence — a radeon_fence object, aka the actual fence we're about to send out into the world 💫

---

⭐ DESCRIPTION ⭐

so what does it actually do? it adds a DMA fence packet to the ring — that's the thing that writes the fence seq number — and then a DMA trap packet to generate an interrupt if needed. and this whole vibe is specifically for evergreen-SI hardware, iykyk 🔥

basically: fence goes on the ring, seq number gets written, interrupt fires if it needs to. clean, simple, obsessed 🍓

---

👑 SEE ALSO 👑

• the kernel file itself: ./drivers/gpu/drm/radeon/evergreen_dma.c 📁
• evergreen_dma_ring_ib_execute(9) — the execute sibling
• evergreen_copy_dma(9) — the copy one
• evergreen_dma_is_lockup(9) — the "are we stuck" check 💀

---

💖 that's the whole page bestie, and yes it's from ./drivers/gpu/drm/radeon, October 2026, filed under evergreen_d...ce_ring_emit(9) — go forth and emit those fences ✨🎀🦋