vcn_v4_0_sw_init(9)
π vcn_v4_0_sw_init β like, the Kernel API Manual page, bestie π
okay so this is vcn_v4_0_sw_init(9) straight out of the Kernel API Manual, and honestly? it's a vibe. it's the software-init glow-up for the VCN block, and we're gonna walk through it together π«Ά
β¨ NAME β¨
vcn_v4_0_sw_init β the sw init for VCN block. that's it. that's the whole name. short, sweet, iconic π
πΈ SYNOPSIS πΈ
int vcn_v4_0_sw_init (struct amdgpu_ip_block *ip_block );
literally one function, one pointer, one int coming back at you. no cap π
π¦ ARGUMENTS π¦
ip_blockβ Pointer to theamdgpu_ip_blockfor this hw instance. like, this specific hardware instance, not the other ones. she knows which one she is π
π DESCRIPTION π
Load firmware and sw initialization. that's the whole job: the firmware gets loaded, the software gets initialized, and then the VCN block is ready to be her main character π§β¨
ngl, short description, but every word is doing its job. no filler, all slay π₯
β SEE ALSO β
go read the whole friend group, fr fr β they're all in the kernel file ./drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c:
vcn_v4_0_early_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_unified_ring_set_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, that's the whole squad. gating, rings, interrupts, idle checks β every single one accounted for, periodt ππ
and that's the page!! mwah π this lil cutie lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and she goes by vcn_v4_0_sw_init(9) β iykyk ππ
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