sdma_v5_0_ring_test_ring(9)

🌸 NAME 🌸

okay so this page is sdma_v5_0_ring_test_ring(9), straight outta the Kernel API Manual — and it's literally the “simple async dma engine test” for your fave DMA engine, no cap. 💖

✨ SYNOPSIS ✨

int sdma_v5_0_ring_test_ring (struct amdgpu_ring *ring );

It returns an int, bestie. That's the vibe. ✨

💅 ARGUMENTS 💅

• ring — the amdgpu_ring structure holding ring information. She's the main character here, fr fr. 👑

🦋 DESCRIPTION 🦋

So basically: you test the DMA engine by using it to write a value to memory. This is the NAVI10 situation, iykyk. 🫶

It returns 0 for success, and error for failure. Periodt. 💅

bestie, that's the whole description — don't blink or you'll miss it. 😭

👑 SEE ALSO 👑

The kernel file lives at ./drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c, and here's the whole squad of references — every single one, preserved exactly:

• sdma_v5_0_init_microcode(9)
• sdma_v5_0_ring_get_rptr(9)
• sdma_v5_0_ring_get_wptr(9)
• sdma_v5_0_ring_set_wptr(9)
• sdma_v5_0_ring_emit_ib(9)
• sdma_v5_0_ring_emit_mem_sync(9)
• sdma_v5_0_ring_emit_hdp_flush(9)
• sdma_v5_0_ring_emit_fence(9)
• sdma_v5_0_gfx_stop(9)
• sdma_v5_0_rlc_stop(9)
• sdma_v5_0_ctx_switch_enable(9)
• sdma_v5_0_enable(9)
• sdma_v5_0_gfx_resume_instance(9)
• sdma_v5_0_gfx_resume(9)
• sdma_v5_0_rlc_resume(9)
• sdma_v5_0_load_microcode(9)
• sdma_v5_0_start(9)
• sdma_v5_0_ring_test_ib(9)
• sdma_v5_0_vm_copy_pte(9)
• sdma_v5_0_vm_write_pte(9)
• sdma_v5_0_vm_set_pte_pde(9)
• sdma_v5_0_ring_pad_ib(9)
• sdma_v5_0_ring_emit_pipeline_sync(9)
• sdma_v5_0_ring_emit_vm_flush(9)
• sdma_v5_0_emit_copy_buffer(9)
• sdma_v5_0_emit_fill_buffer(9)

mwah 💋 — source path is ./drivers/gpu/drm/amd/amdgpu, the version/date situation is October 2026, and the page name is sdma_v5_0_ring_test_ring(9). byeee 🎀