gfx_v7_0_ring_emit_vm_flush(9)
π 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 π
β¨ NAME β¨
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. π¦
πΈ SYNOPSIS πΈ
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 π
π ARGUMENTS π
ringβ anamdgpu_ringpointer, i.e. the ring we're doing all of this on β¨vmidβ the vmid number to use, like, which virtual machine ID we're rolling with π₯pd_addrβ the address. that's it. that's the whole description. she's lowkey mysterious π
π DESCRIPTION π
so what does she actually do? two things, and honestly? both slay:
- Update the page table base π
- Flush the VM TLB using the CP (CIK) π
that's the entire plot. no plot twists. no cap. it's giving "small function, big responsibility" energy and I am obsessed π
π SEE ALSO π
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:
gfx_v7_0_init_microcode(9)gfx_v7_0_tiling_mode_table_init(9)gfx_v7_0_select_se_sh(9)gfx_v7_0_get_rb_active_bitmap(9)gfx_v7_0_setup_rb(9)gfx_v7_0_init_compute_vmid(9)gfx_v7_0_constants_init(9)gfx_v7_0_ring_test_ring(9)gfx_v7_0_ring_emit_hdp_flush(9)gfx_v7_0_ring_emit_fence_gfx(9)gfx_v7_0_ring_emit_fence_compute(9)gfx_v7_0_ring_emit_ib_gfx(9)gfx_v7_0_ring_test_ib(9)gfx_v7_0_cp_gfx_enable(9)gfx_v7_0_cp_gfx_load_microcode(9)gfx_v7_0_cp_gfx_start(9)gfx_v7_0_cp_gfx_resume(9)gfx_v7_0_cp_compute_enable(9)gfx_v7_0_cp_compute_load_microcode(9)gfx_v7_0_cp_compute_resume(9)gfx_v7_0_ring_emit_pipeline_sync(9)gfx_v7_0_rlc_stop(9)gfx_v7_0_rlc_start(9)gfx_v7_0_rlc_resume(9)gfx_v7_0_get_gpu_clock_counter(9)gfx_v7_0_get_hdp_flush_mask(9)
like, the whole gfx_v7_0_* squad showed up to the group chat ππ
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 π§
and that's the page!! π 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 π«Άβ
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms