amdgpu_vm_up..._fault_cache(9)

๐Ÿ“ฆ version 7.3.1, in nixpkgs unstable

โœจ amdgpu_vm_update_fault_cache โœจ

okay so real talk, this one lives in the Kernel API Manual (the amdgpu_vm_up..._fault_cache(9) one, yes the name is a whole mood and it got truncated, we don't talk about it ๐Ÿ’€) and honestly? it's a little baddie. let's get into it ๐Ÿซถ


๐ŸŒธ NAME ๐ŸŒธ

amdgpu_vm_update_fault_cache โ€” update cached fault into.

(no bestie I did not mistype that, the page literally says "into", we're keeping it, character for character, periodt ๐Ÿ’…)


โญ SYNOPSIS โญ

void amdgpu_vm_update_fault_cache (struct amdgpu_device *adev , unsigned
int pasid , uint64_t addr , uint32_t status , unsigned int vmhub );

like yeah it's giving "one function, five arguments, zero chill" but she's iconic ๐Ÿ”ฅ


๐ŸŽ€ ARGUMENTS ๐ŸŽ€

  • adev โ€” amdgpu device pointer. that's the whole GPU bestie, the main character energy itself ๐Ÿ‘‘
  • pasid โ€” PASID of the VM. your girl's process ID era ๐Ÿฆ‹
  • addr โ€” Address of the fault. where it all went down ๐Ÿ™ˆ
  • status โ€” GPUVM fault status register. the receipts, basically ๐Ÿ“‹
  • vmhub โ€” which vmhub got the fault. gotta know which hub is going through it ๐Ÿ˜ญ

๐Ÿ’œ DESCRIPTION ๐Ÿ’œ

Cache the fault info for later use by userspace in debugging.

that's it. that's the whole vibe. she snatches the fault info, tucks it away all neatly, and later userspace gets to rummage through it while debugging. lowkey so helpful of her ngl ๐Ÿงšโœจ


๐Ÿ”ฎ SEE ALSO ๐Ÿ”ฎ

Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c โ€” and like, an entire friend group of functions. buckle up bestie, we're listing every single one because I would never do you dirty like that ๐Ÿ’–

like. seventy entries. she has friends, okay, we respect it ๐ŸŒˆ


and that's the whole page bestie โ€” mwah ๐Ÿ’‹ this little love letter came to you from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it answers to the name amdgpu_vm_up..._fault_cache(9). go read it again fr fr, she ate ๐Ÿ“๐Ÿ‘‘

๐Ÿ“ฆ where this page comes from