gfx_v7_0_ring_emit_ib_gfx(9)

πŸ“¦ version 7.3.1, in nixpkgs unstable

πŸ’… gfx_v7_0_ring_emit_ib_gfx(9) β€” like, the Kernel API Manual bestie edition πŸŽ€

okay so bestie, gather round, because we're about to talk about the single most "trust me I'm a driver" function in the whole amdgpu cinematic universe ✨


🌸 NAME 🌸

gfx_v7_0_ring_emit_ib_gfx β€” literally just emit an IB (Indirect Buffer) on the ring, no cap πŸ’–


πŸ¦‹ SYNOPSIS πŸ¦‹

void gfx_v7_0_ring_emit_ib_gfx (struct amdgpu_ring *ring , struct
amdgpu_job *job , struct amdgpu_ib *ib , uint32_t flags );

that's it. that's the whole signature. she's giving void, she's giving "I don't return anything because I'm too iconic" πŸ‘‘


✨ ARGUMENTS ✨

  • ring β€” the amdgpu_ring structure that's holding all the ring information. she's the main character holding the group chat together 🫢
  • job β€” the job we're pulling the vmid from. yes bestie, we got it from there πŸ’…
  • ib β€” the amdgpu indirect buffer object. the little packet of destiny 🌈
  • flags β€” the options, and rn the one on the menu is AMDGPU_HAVE_CTX_SWITCH ⭐

πŸ”₯ DESCRIPTION πŸ”₯

so what does she do? she emits a DE (drawing engine) or CE (constant engine) IB on the gfx ring. iconic behavior, honestly πŸ’€

and like, where do these IBs even come from? usually they're generated by userspace acceleration drivers and then submitted to the kernel so the kernel can schedule them on the ring. teamwork! collaboration! the way that userspace and kernel are literally a duo 🧚

this function right here is the one that schedules the IB on the gfx ring for execution by the GPU. she hands it off. she does not do the work herself. she's the connector, she's the middle child of the pipeline, and she ate πŸ”₯


πŸ‘‘ SEE ALSO πŸ‘‘

if you're nosy (love that for you), the kernel file lives at ./drivers/gpu/drm/amd/amdgpu/gfx_v7_0.c and the whole friend group is:

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_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_ring_emit_vm_flush(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, that's a whole squad. a roster. a lineup πŸ˜­πŸ’œ


ok that's the page bestie, hope it slayed 🌸 this little love letter came to you from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and yes she's still serving gfx_v7_0_ring_emit_ib_gfx(9) energy. mwah πŸ’‹ periodt.
πŸ“¦ where this page comes from