cik_sdma_init_microcode(9)

💖 cik_sdma_init_microcode(9) 💖

okay so bestie, welcome to the Kernel API Manual — this is the page for cik_sdma_init_microcode, and honestly it's a short one but it's kinda iconic. Let's get into it 🦋

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✨ NAME ✨

cik_sdma_init_microcode — load ucode images from disk 🌸

Like, that's the whole thing. It loads microcode images off the disk. Simple queen behavior.

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🌈 SYNOPSIS 🌈

int cik_sdma_init_microcode (struct amdgpu_device *adev );

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🎀 ARGUMENTS 🎀

• adev — amdgpu_device pointer 💅 like, that's the device you're handing over, no cap

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💜 DESCRIPTION 💜

So here's the vibe: this function uses the firmware interface to load the ucode images into the driver — and important note bestie, not loaded into hw. That distinction is doing a lot of work here, don't skip it 🙈

It returns 0 on success, and an error on failure. That's it. That's the function. Short king 👑

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🦋 SEE ALSO 🦋

The kernel file lives at ./drivers/gpu/drm/amd/amdgpu/cik_sdma.c — go read it, it's giving main character energy ✨

And the whole squad, in the order they were listed:

• cik_sdma_ring_get_rptr(9)
• cik_sdma_ring_get_wptr(9)
• cik_sdma_ring_set_wptr(9)
• cik_sdma_ring_emit_ib(9)
• cik_sdma_ring_emit_hdp_flush(9)
• cik_sdma_ring_emit_fence(9)
• cik_sdma_gfx_stop(9)
• cik_sdma_rlc_stop(9)
• cik_ctx_switch_enable(9)
• cik_sdma_enable(9)
• cik_sdma_gfx_resume(9)
• cik_sdma_rlc_resume(9)
• cik_sdma_load_microcode(9)
• cik_sdma_start(9)
• cik_sdma_ring_test_ring(9)
• cik_sdma_ring_test_ib(9)
• cik_sdma_vm_copy_pte(9)
• cik_sdma_vm_write_pte(9)
• cik_sdma_vm_set_pte_pde(9)
• cik_sdma_ring_pad_ib(9)
• cik_sdma_ring_emit_pipeline_sync(9)
• cik_sdma_ring_emit_vm_flush(9)
• cik_sdma_emit_copy_buffer(9)
• cik_sdma_emit_fill_buffer(9)

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fr fr that's the whole page. go load some ucode, bestie 🫶

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and that's a wrap, mwah 💋 — this came out of the ./drivers/gpu/drm/amd/amdgpu corner of the kernel, dated October 2026, and it's filed under cik_sdma_init_microcode(9). slay, bye 🧚💖