sdma_v5_2_gfx_resume(9)
π sdma_v5_2_gfx_resume π
okay bestie, so this is a page straight out of the Kernel API Manual β like, the actual kernel docs, not a vibe β and it's about sdma_v5_2_gfx_resume. yes it's a mouthful, no we're not renaming it, the kernel does NOT accept nicknames π
β¨ NAME β¨
sdma_v5_2_gfx_resume β setup and start the async dma engines
like, it literally spins the async DMA engines back up and gets them going π no cap, that's the whole gig.
πΈ SYNOPSIS πΈ
int sdma_v5_2_gfx_resume (struct amdgpu_device *adev );
it takes one thing and gives you back an int. that's it. that's the whole signature, she's lowkey elegant π
π¦ ARGUMENTS π¦
adevβ anamdgpu_devicepointer. that's your whole graphics device bestie, the main character of the entire amdgpu world π
π DESCRIPTION π
so what actually happens? it sets up the gfx DMA ring buffers and enables them. that's the tea β β buffers get configured, buffers get turned on, engines go brrr π₯
and the return value? if it works, you get 0 for success π and if it doesn't work, you get an error for failure π (yes, "error for failure," the manpage said it first, I'm just delivering it with feeling).
ngl, this one's a "check your return value" situation β 0 means slay, anything else means something went sideways and you should probably actually look at it instead of pretending you didn't see it π
π SEE ALSO π
okay this section is LONG and honestly she ate π β here's the full squad, no gatekeeping:
- the actual kernel file:
./drivers/gpu/drm/amd/amdgpu/sdma_v5_2.cβ that's home base π sdma_v5_2_ring_get_rptr(9)sdma_v5_2_ring_get_wptr(9)sdma_v5_2_ring_set_wptr(9)sdma_v5_2_ring_emit_ib(9)sdma_v5_2_ring_emit_mem_sync(9)sdma_v5_2_ring_emit_hdp_flush(9)sdma_v5_2_ring_emit_fence(9)sdma_v5_2_gfx_stop(9)sdma_v5_2_rlc_stop(9)sdma_v5_2_ctx_switch_enable(9)sdma_v5_2_enable(9)sdma_v5_2_gfx_resume_instance(9)sdma_v5_2_rlc_resume(9)sdma_v5_2_load_microcode(9)sdma_v5_2_start(9)sdma_v5_2_ring_test_ring(9)sdma_v5_2_ring_test_ib(9)sdma_v5_2_vm_copy_pte(9)sdma_v5_2_vm_write_pte(9)sdma_v5_2_vm_set_pte_pde(9)sdma_v5_2_ring_pad_ib(9)sdma_v5_2_ring_emit_pipeline_sync(9)sdma_v5_2_ring_emit_vm_flush(9)sdma_v5_2_emit_copy_buffer(9)sdma_v5_2_emit_fill_buffer(9)
fr fr, read the whole friend group, they all make sense together π«Άβ¨
and that's the page!! source is ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and the whole thing is filed under sdma_v5_2_gfx_resume(9) β mwah, go read the kernel docs bestie, ily ππ§ββοΈ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms