vcn_v2_5_di...clock_gating(9)

✨ NAME ✨

vcn_v2_5_disable_clock_gating — bestie, this is the one that turns VCN clock gating off 💅

This is a page from the Kernel API Manual, and honestly? It's a short one, but it ate. No cap.

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🌸 SYNOPSIS 🌸

void vcn_v2_5_disable_clock_gating (struct amdgpu_vcn_inst *vinst );

Like… that's it. That's the whole signature. Void return, one pointer, zero drama. ✨

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🎀 ARGUMENTS 🎀

• vinst — the VCN instance, iykyk. It's a struct amdgpu_vcn_inst * and it's literally the only thing you have to hand over 🫶

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🦋 DESCRIPTION 🦋

It disables clock gating for the VCN block. That's the whole vibe check.

Disable clock gating for VCN block — periodt. If you came here looking for a plot twist, there isn't one, and honestly that's iconic of it 💖

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💜 SEE ALSO 💜

Okay so this function does not exist in a vacuum, bestie — it's part of a whole little friend group in the kernel:

• Kernel file: ./drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c 👑
• vcn_v2_5_early_init(9)
• vcn_v2_5_sw_init(9)
• vcn_v2_5_sw_fini(9)
• vcn_v2_5_hw_init(9)
• vcn_v2_5_hw_fini(9)
• vcn_v2_5_suspend(9)
• vcn_v2_5_resume(9)
• vcn_v2_5_mc_resume(9)
• vcn_v2_5_enable_clock_gating(9) — yes, the opposite one, they're giving sibling energy 🌈
• vcn_v2_5_dec_ring_get_rptr(9)
• vcn_v2_5_dec_ring_get_wptr(9)
• vcn_v2_5_dec_ring_set_wptr(9)
• vcn_v2_5_enc_ring_get_rptr(9)
• vcn_v2_5_enc_ring_get_wptr(9)
• vcn_v2_5_enc_ring_set_wptr(9)

Like, go read those too, they're all right there 💀

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Go off, vcn_v2_5.c. You're the main character file of this whole page fr fr 🧚

So yeah — that's the whole page, from the Kernel API Manual, dated October 2026, living its best life over in ./drivers/gpu/drm/amd/amdgpu. Stay slay, stay gated (or don't, that's literally the point) 💅✨🍓