amdgpu_bo_sync_wait_resv(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’– amdgpu_bo_sync_wait_resv(9) β€” the Kernel API Manual, but make it make sense ✨

okay so bestie, welcome to the Kernel API Manual πŸŽ€ β€” this is the page for amdgpu_bo_sync_wait_resv(9), and honestly? it's giving "small function, big job." sit down, grab a strawberry πŸ“, and let's get into it.


✨ NAME ✨

amdgpu_bo_sync_wait_resv β€” bestie, it waits for BO reservation fences. that's the whole vibe check. πŸ¦‹


πŸ”₯ SYNOPSIS πŸ”₯

int amdgpu_bo_sync_wait_resv (struct amdgpu_device *adev , struct
dma_resv *resv , enum amdgpu_sync_mode sync_mode , void *owner , bool
intr );

five arguments, one int coming back at you. no cap, that's it. πŸ‘‘


🌸 ARGUMENTS 🌸

here's the cast of characters, main character energy only:

  • adev β€” the amdgpu device pointer. like, the whole device. your fave. πŸ’œ
  • resv β€” the reservation object you're syncing to. this is the thing we're waiting on, periodt.
  • sync_mode β€” the synchronization mode. it's an enum amdgpu_sync_mode, so pls use a real value, iykyk.
  • owner β€” the fence owner. a void *, so it can be literally whatever, but it does mean something, bestie.
  • intr β€” a bool for whether the wait is interruptible. yes or no, no in-between. πŸ™ˆ

πŸ’… DESCRIPTION πŸ’…

so what does it do? it extracts the fences from the reservation object and waits for them to finish. that's the whole thing. the way that it just… pulls the fences out and waits? iconic. 🧚

like, if the fences aren't done yet, this is the function that just stands there patiently until they are. no drama, just fences, and waiting. slay. 🌈


⭐ RETURN ⭐

  • 0 on success 🫢
  • errno otherwise 😭

two outcomes, no nuance, we love a clean binary.


πŸ‘‘ SEE ALSO πŸ‘‘

the source file lives at Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_object.c β€” go read it if you're feeling nosy (you should be, it's a whole moment).

and now, the friend group β€” literally every amdgpu_bo-adjacent function you could possibly need:

the whole squad, fr fr. πŸ’–


ok that's the page!! special shoutout to the source at ./drivers/gpu/drm/amd/amdgpu, dated October 2026, for making this little wait-for-fences moment possible. xoxo, go touch some dma_resv πŸ’€πŸ¦‹
πŸ“¦ where this page comes from