amdgpu_device_get_pcie_info(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… amdgpu_device_get_pcie_info(9) β€” bestie, let's talk PCIe

okay so first things first: this page lives in the Kernel API Manual, section 9, and the function's full government name is amdgpu_device_get_pcie_info. say it with me. iconic. πŸŽ€


✨ NAME ✨

amdgpu_device_get_pcie_info β€” fence pcie info about the PCIE slot

like, it goes and gets the info. and then fences it. no cap. πŸ¦‹


🌸 SYNOPSIS 🌸

void amdgpu_device_get_pcie_info (struct amdgpu_device *adev );

short, sweet, returns nothing, does not miss. periodt. πŸ’…


🫢 ARGUMENTS 🫢

  • adev β€” amdgpu_device pointer. that's the one and only thing you're handing it. it's giving "just the one friend who's driving" energy. πŸš—

πŸ”₯ DESCRIPTION πŸ”₯

so what does it actually do? it fetches the PCIE capabilities of the slot the device is sitting in β€” that's the gen speed and the lanes β€” and then it stores them in the driver. so the driver just... knows. main character energy, honestly. πŸ‘‘

and the way it handles the weird edge cases?? obsessed. it's got you covered for:

  • APUs 🧚
  • virtualized environments, where PCIE config space may not be available 😭

so like, if the config space isn't there to read, it's not gonna have a meltdown β€” it knows what's up. lowkey so thoughtful of it. πŸ’–

ngl, this is the kind of function that quietly does its job and never asks for credit. eat your heart out.

πŸ‘‘ SEE ALSO πŸ‘‘

the friend group. the whole squad. every single one. 🫑

Kernel file: ./drivers/gpu/drm/amd/amdgpu/amdgpu_device.c

like i said. the whole squad. πŸ’€


that's the page, bestie. source and version vibes come from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and the man page is amdgpu_device_get_pcie_info(9) β€” slay, go read the source, ily πŸ“πŸ’œπŸŒˆ

πŸ“¦ where this page comes from