vcn_v4_0_start(9)

💅 vcn_v4_0_start(9) 💅

okay so bestie, welcome to the Kernel API Manual ✨ — this is the page for vcn_v4_0_start, and yes it's a kernel function, yes it's giving main character energy, and yes we're gonna get through it together 🫶

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🌸 NAME 🌸

vcn_v4_0_start — VCN start 💖 (that's literally it, that's the whole vibe)

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✨ SYNOPSIS ✨

int vcn_v4_0_start (struct amdgpu_vcn_inst *vinst );

so it returns an int (iykyk, kernel functions basically always return an int), and it takes exactly one argument. no cap, that's the whole signature 🎀

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🦋 ARGUMENTS 🦋

• vinst — the VCN instance. like, the specific one you're starting. one instance, one argument, no drama 💅

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🔥 DESCRIPTION 🔥

Start VCN block ✨ — that's the whole description, and honestly? iconic. it starts the VCN block. periodt. 🎯

lowkey the shortest DESCRIPTION ever and I'm obsessed with the confidence ngl 💀

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👑 SEE ALSO 👑

bestie, buckle up, because there is a lot of family here 🍓 — and every single one of them is a (9) page, fr fr:

• Kernel file ./drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c — the source, the origin, the mothership 🌈
• 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_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 right there 🧚💜

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✨ cute sign-off time ✨

this lil masterpiece lives in ./drivers/gpu/drm/amd/amdgpu and the version/date stamp on it is October 2026 — so yeah, valid, current, slaying 💖 go read the source, bestie, and remember: start the VCN block, don't skip the VCN block 🎀⭐