amdgpu_atrm_call(9)

💅 amdgpu_atrm_call(9) 💅

okay so this is the Kernel API Manual page for amdgpu_atrm_call(9), bestie — and it's literally all about fetching a chunk of the vbios. no cap, let's get into it 🎀✨

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💖 NAME 💖

amdgpu_atrm_call — fetch a chunk of the vbios 🖼️

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✨ SYNOPSIS ✨

int amdgpu_atrm_call (acpi_handle atrm_handle , uint8_t *bios , int
       offset , int len );

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🦋 ARGUMENTS 🦋

• atrm_handle — an acpi ATRM handle, like the little passport for this call 🛂
• bios — vbios image pointer, aka where the vbios image lives 🖼️
• offset — offset of vbios image data to fetch 📍
• len — length of vbios image data to fetch 📏

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🌸 DESCRIPTION 🌸

So this one executes ATRM to fetch a chunk of the discrete vbios image on PX systems (all asics), periodt 💅

And yes bestie, it returns the length of the buffer fetched — iconic behavior, honestly 👑

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_bios.c — the source file in question 💾
• amdgpu_acpi_vfct_match(9) — another manual page to check out 👀

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ta-ta for now 💖 this page comes from the ./drivers/gpu/drm/amd/amdgpu source, version amdgpu_atrm_call(9), dated October 2026 — and it's part of the Kernel API Manual, periodt ✨🫶