vcn_v5_0_1_u...ing_set_wptr(9)
π vcn_v5_0_1_unified_ring_set_wptr(9) β from the Kernel API Manual π
okay so bestie, welcome to the group chat for a very specific little kernel function π this one lives in the Kernel API Manual and it is, no joke, the girl who tells the hardware where the write pointer is at. slay β¨
πΈ NAME πΈ
vcn_v5_0_1_unified_ring_set_wptr β set enc write pointer. that's it, that's the whole gig π
β SYNOPSIS β
void vcn_v5_0_1_unified_ring_set_wptr (struct amdgpu_ring *ring );
like, she takes one argument, she returns nothing, she minds her business π«Ά
π¦ ARGUMENTS π¦
ringβ anamdgpu_ringpointer. yes literally just that. it's giving "one job, one pointer" energy π
β¨ DESCRIPTION β¨
so what does she actually do? she commits the enc write pointer to the hardware. that's the whole thing, no cap π₯ the write pointer goes in, the hardware gets it, the vibe check passes β¨
π SEE ALSO π
okay this list is long, but we do not skip a single one, because every reference is iconic in her own way π
the kernel file herself:
./drivers/gpu/drm/amd/amdgpu/vcn_v5_0_1.c
and the whole friend group, fr fr:
vcn_v5_0_1_early_init(9)vcn_v5_0_1_sw_init(9)vcn_v5_0_1_sw_fini(9)vcn_v5_0_1_hw_init(9)vcn_v5_0_1_hw_fini(9)vcn_v5_0_1_suspend(9)vcn_v5_0_1_resume(9)vcn_v5_0_1_mc_resume(9)vcn_v5_0_1_mc_resume_dpg_mode(9)vcn_v5_0_1_disable_clock_gating(9)vcn_v5_0_1_enable_clock_gating(9)vcn_v5_0_1_pause_dpg_mode(9)vcn_v5_0_1_start_dpg_mode(9)vcn_v5_0_1_start(9)vcn_v5_0_1_stop_dpg_mode(9)vcn_v5_0_1_stop(9)vcn_v5_0_1_unified_ring_get_rptr(9)vcn_v5_0_1_unified_ring_get_wptr(9)vcn_v5_0_1_set_unified_ring_funcs(9)vcn_v5_0_1_is_idle(9)vcn_v5_0_1_wait_for_idle(9)vcn_v5_0_1_set_clockgating_state(9)vcn_v5_0_1_process_interrupt(9)vcn_v5_0_1_set_irq_funcs(9)
and that's the page, bestie π this cutie came to you from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and she's filed under vcn_v5_0_1_u...ing_set_wptr(9) in the Kernel API Manual β periodt π
β¨
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