sdma_v7_0_load_microcode(9)
π sdma_v7_0_load_microcode(9) π
okay so bestie, welcome to the Kernel API Manual β¨ this one's a lil function page and it's lowkey iconic, sit down, grab a strawberry π
πΈ NAME πΈ
sdma_v7_0_load_microcode β literally loads the sDMA ME ucode, that's the whole vibe π
β¨ SYNOPSIS β¨
int sdma_v7_0_load_microcode (struct amdgpu_device *adev );
like. that's it. that's the whole signature. she's simple, she's clean, she slays π
π¦ ARGUMENTS π¦
adevβ a pointer to anamdgpu_device, so basically the whole GPU's main character energy gets passed in right here π
π DESCRIPTION π
So what does she actually do? She loads the sDMA0/1 ucode β both instances, no cap, she's doing the absolute most in the best way π
And the return values? Get this:
- returns
0when it's all good β success, slay, we ate π - returns
-EINVALif the ucode is not available β like if the firmware just did not show up to the party π not the ucode ghosting you π
fr fr, that's the whole contract.0= good vibes,-EINVAL= no ucode, nothing in between π«Ά
π SEE ALSO π
okay this list is long but we don't skip the boring parts in this house, we love a complete list, iykyk π
First up, the source file herself:
- Kernel file
./drivers/gpu/drm/amd/amdgpu/sdma_v7_0.c
And then the whole friend group, in order:
sdma_v7_0_ring_get_rptr(9)sdma_v7_0_ring_get_wptr(9)sdma_v7_0_ring_set_wptr(9)sdma_v7_0_ring_emit_ib(9)sdma_v7_0_ring_emit_mem_sync(9)sdma_v7_0_ring_emit_hdp_flush(9)sdma_v7_0_ring_emit_fence(9)sdma_v7_0_gfx_stop(9)sdma_v7_0_rlc_stop(9)sdma_v7_0_ctx_switch_enable(9)sdma_v7_0_enable(9)sdma_v7_0_gfx_resume_instance(9)sdma_v7_0_gfx_resume(9)sdma_v7_0_rlc_resume(9)sdma_v7_0_start(9)sdma_v7_0_ring_test_ring(9)sdma_v7_0_ring_test_ib(9)sdma_v7_0_vm_copy_pte(9)sdma_v7_0_vm_write_pte(9)sdma_v7_0_vm_set_pte_pde(9)sdma_v7_0_ring_pad_ib(9)sdma_v7_0_ring_emit_pipeline_sync(9)sdma_v7_0_ring_emit_vm_flush(9)sdma_v7_0_emit_copy_buffer(9)sdma_v7_0_emit_fill_buffer(9)
like, the whole sdma_v7_0 fam is here, it's giving family reunion π§β¨
aaaand that's the page!! π sign-off time: this lil slice of documentation lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026 β so yeah, future-coded fr π go read the source file bestie, ily, bye ππ
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