vcn_v5_0_1_start(9)

✨ vcn_v5_0_1_start — the Kernel API Manual glow-up ✨

okay so bestie, you're looking at vcn_v5_0_1_start from the Kernel API Manual, and honestly? it's giving "small function, big responsibility" 💅 let's get into it.

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🌸 NAME 🌸

vcn_v5_0_1_start — literally just VCN start. that's the whole vibe. 🎀

🦋 SYNOPSIS 🦋

int vcn_v5_0_1_start (struct amdgpu_vcn_inst *vinst );

💖 ARGUMENTS 💖

• vinst — the VCN instance. that's it, that's the whole parameter list. one (1) arg, and it's this one 🫶

✨ DESCRIPTION ✨

Start the VCN block. no cap, that's the entire description — it starts VCN and it does not elaborate 😭 iconic behavior honestly.

👑 SEE ALSO 👑

the kernel file lives at ./drivers/gpu/drm/amd/amdgpu/vcn_v5_0_1.c — go read it if you want the lore, iykyk 📖

and here's the whole friend group, all of them cross-referenced, all of them real, none of them skipped:

• 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_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_unified_ring_set_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)

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bestie reminder: this page is filed under ./drivers/gpu/drm/amd/amdgpu, so that's where the source lives — don't come for me if you go looking elsewhere 💀

and that's the whole page! short, sweet, and honestly kind of a vibe 🌈 mwah 💋

signed off with love by the ./drivers/gpu/drm/amd/amdgpu girlies — dated October 2026, version vibes: vcn_v5_0_1_start(9) 🎀✨