vcn_v4_0_uni...ing_set_wptr(9)
β¨ vcn_v4_0_unified_ring_set_wptr(9) β¨
okay so bestie, we're in the Kernel API Manual today (yes, the fancy one π
) and the page we're reading is literally called vcn_v4_0_uni...ing_set_wptr(9) β the truncated lil icon that it is π
πΈ NAME πΈ
vcn_v4_0_unified_ring_set_wptr β set enc write pointer
no cap, that's the whole job. it sets the write pointer. for the enc. π₯
π¦ SYNOPSIS π¦
void vcn_v4_0_unified_ring_set_wptr (struct amdgpu_ring *ring );
that's it. that's the signature. she's void, she takes one pointer, she does not return a thing π
π ARGUMENTS π
ringβ amdgpu_ring pointer. that's your girl. she's astruct amdgpu_ring *and she's the only thing this function wants from you π«Ά
β DESCRIPTION β
Commits the enc write pointer to the hardware.
literally that's it, that's the whole vibe β the enc write pointer gets committed to the hardware. main character energy of a function that knows exactly what it's about and refuses to elaborate πβ¨
π SEE ALSO π
bestie, the friend group is huge, buckle up π and yes the kernel file lives at ./drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c:
vcn_v4_0_early_init(9)vcn_v4_0_sw_init(9)vcn_v4_0_sw_fini(9)vcn_v4_0_hw_init(9)vcn_v4_0_hw_fini(9)vcn_v4_0_suspend(9)vcn_v4_0_resume(9)vcn_v4_0_mc_resume(9)vcn_v4_0_mc_resume_dpg_mode(9)vcn_v4_0_disable_static_power_gating(9)vcn_v4_0_enable_static_power_gating(9)vcn_v4_0_disable_clock_gating(9)vcn_v4_0_disable_clock_gating_dpg_mode(9)vcn_v4_0_enable_clock_gating(9)vcn_v4_0_start_dpg_mode(9)vcn_v4_0_start(9)vcn_v4_0_stop_dpg_mode(9)vcn_v4_0_stop(9)vcn_v4_0_pause_dpg_mode(9)vcn_v4_0_unified_ring_get_rptr(9)vcn_v4_0_unified_ring_get_wptr(9)vcn_v4_0_set_unified_ring_funcs(9)vcn_v4_0_is_idle(9)vcn_v4_0_wait_for_idle(9)vcn_v4_0_set_clockgating_state(9)vcn_v4_0_set_ras_interrupt_state(9)vcn_v4_0_process_interrupt(9)vcn_v4_0_set_irq_funcs(9)
like, the whole vcn_v4_0 cast showed up to the group chat ππ and they all ate.
π reminder: everything in SEE ALSO is a manual page reference β the (9) is the section, not a vibe rating. iykyk.
and that's the page, bestie π super short, super sweet, lowkey iconic. this gem lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and the header told us it's vcn_v4_0_uni...ing_set_wptr(9) β so go forth and commit that write pointer to the hardware π
β¨π¦
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