amdgpu_devi...irect_rreg64(9)

📦 version 7.3.1, in nixpkgs unstable

💅 amdgpu_device_indirect_rreg64(9) — from the Kernel API Manual, bestie

okay so picture this: you're deep in the kernel, you need one 64-bit value out of an indirect register on your amdgpu device, and nobody's gonna do it for you. that's literally this function. it's giving "small function, big responsibility" ✨

🌸 NAME 🌸

amdgpu_device_indirect_rreg64 — read a 64bits indirect register 🎀

like, sixty-four whole bits. not eight, not thirty-two. sixty-four. she's a big girl register and we're reading all of her, no cap 💅

✨ SYNOPSIS ✨

u64 amdgpu_device_indirect_rreg64 (struct amdgpu_device *adev , u32
reg_addr );

that's it. that's the whole vibe. one device, one address, one u64 coming back at you 🦋

🫶 ARGUMENTS 🫶

  • adev — amdgpu_device pointer. this is your main character, the device you're poking at 🔥
  • reg_addr — indirect register address to read from. the exact spot we're snooping, u32 style ⭐

💖 DESCRIPTION 💖

Returns the value of indirect register reg_addr. periodt. that's the whole job description — she reads, she returns, she doesn't overthink it 💀

no extra lore, no side quests, no "and then it also..." — just the value of reg_addr, handed to you as a u64 with full main character energy 👑

🦋 SEE ALSO 🦋

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_reg_access.c — that's where the source lives if you wanna go read her origin story 📖

and the whole friend group, all iconic, all linked:

i mean, the way these all show up together every single time — squad goals fr fr 🌈

ngl, if you needed a single 64-bit indirect read, congratulations, you found her. go get that value bestie 🍓

kisses and register reads, this page came out of ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it's part of that Kernel API Manual life — mwah, bye 🧚💜

📦 where this page comes from