sdma_v6_0_ring_emit_fence(9)

💖 sdma_v6_0_ring_emit_fence(9) 💖

okay bestie, this one is from the Kernel API Manual, and it's here to explain how to emit a fence on the DMA ring. very main-character kernel behavior, no cap ✨

---

🌸 NAME 🌸

sdma_v6_0_ring_emit_fence — emit a fence on the DMA ring 💅

---

🦋 SYNOPSIS 🦋

void sdma_v6_0_ring_emit_fence (struct amdgpu_ring *ring , u64 addr ,
       u64 seq , unsigned flags );

---

🎀 ARGUMENTS 🎀

• ring — amdgpu ring pointer. this is the ring bestie, the whole vibe.
• addr — address. literally the address.
• seq — fence seq number. yes, the sequence number for the fence.
• flags — fence flags. flags gonna flag.

---

✨ DESCRIPTION ✨

so what it does: it adds a DMA fence packet to the ring to write the fence seq number, and it adds a DMA trap packet to generate an interrupt if needed. that's the whole assignment, and it ate 🔥

---

💜 SEE ALSO 💜

• Kernel file: ./drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c
• sdma_v6_0_ring_get_rptr(9), sdma_v6_0_ring_get_wptr(9), sdma_v6_0_ring_set_wptr(9), sdma_v6_0_ring_emit_mem_sync(9), sdma_v6_0_ring_emit_hdp_flush(9), sdma_v6_0_gfx_stop(9), sdma_v6_0_rlc_stop(9), sdma_v6_0_ctxempty_int_enable(9), sdma_v6_0_enable(9), sdma_v6_0_gfx_resume_instance(9), sdma_v6_0_gfx_resume(9), sdma_v6_0_rlc_resume(9), sdma_v6_0_load_microcode(9), sdma_v6_0_start(9), sdma_v6_0_ring_test_ring(9), sdma_v6_0_vm_copy_pte(9), sdma_v6_0_vm_write_pte(9), sdma_v6_0_vm_set_pte_pde(9), sdma_v6_0_ring_emit_pipeline_sync(9), sdma_v6_0_emit_copy_buffer(9), sdma_v6_0_emit_fill_buffer(9)

---

source/version: ./drivers/gpu/drm/amd/amdgpu · date: October 2026 — okay that's the whole page, ily, bye bestie 🫶💋