gfx_v7_0_ring_emit_vm_flush(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… gfx_v7_0_ring_emit_vm_flush(9) β€” a Kernel API Manual moment

okay so bestie, this is a page from the Kernel API Manual, and it's about gfx_v7_0_ring_emit_vm_flush. yes the name is a mouthful, no we are not abbreviating it, it's iconic as-is πŸŽ€


✨ NAME ✨

gfx_v7_0_ring_emit_vm_flush β€” cik vm flush using the CP

like, that's the whole vibe. it flushes the VM TLB and it does it using the CP, on CIK. periodt. πŸ¦‹


🌸 SYNOPSIS 🌸

void gfx_v7_0_ring_emit_vm_flush (struct amdgpu_ring *ring , unsigned
vmid , uint64_t pd_addr );

returns void, so like... no return value to obsess over, she just does the thing and dips πŸ’…


πŸŽ€ ARGUMENTS πŸŽ€

  • ring β€” an amdgpu_ring pointer, i.e. the ring we're doing all of this on ✨
  • vmid β€” the vmid number to use, like, which virtual machine ID we're rolling with πŸ”₯
  • pd_addr β€” the address. that's it. that's the whole description. she's lowkey mysterious πŸ™ˆ

πŸ’– DESCRIPTION πŸ’–

so what does she actually do? two things, and honestly? both slay:

  1. Update the page table base πŸ“
  2. Flush the VM TLB using the CP (CIK) 🌊

that's the entire plot. no plot twists. no cap. it's giving "small function, big responsibility" energy and I am obsessed πŸ‘‘


πŸ‘‘ SEE ALSO πŸ‘‘

the kernel file herself lives at:

./drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c

and here's the whole friend group, fr fr β€” every single one of them, no skip:

like, the whole gfx_v7_0_* squad showed up to the group chat πŸ˜­πŸ’œ


ngl bestie, this one's short and sweet β€” no warnings, no bugs section, no exit statuses, nothing scary. just a little VM flush and a whole lot of lore 🧚

and that's the page!! 🌈 this lil writeup came out of ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and yes she's still out here answering to gfx_v7_0_ring_emit_vm_flush(9) β€” iykyk 🫢⭐

πŸ“¦ where this page comes from