uvd_v4_2_mc_resume(9)

💅 uvd_v4_2_mc_resume(9) — like, the kernel API manual bestie 🎀

okay so picture this: it's a whole manpage from the Kernel API Manual, and the star of the show is uvd_v4_2_mc_resume. she's a function. she's iconic. let's get into it ✨

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🌸 NAME 🌸

uvd_v4_2_mc_resume — memory controller programming, no cap 💖

like literally, that's her whole job description: programming the memory controller. main character energy fr.

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🦋 SYNOPSIS 🦋

void uvd_v4_2_mc_resume (struct amdgpu_device *adev );

that's it. that's the whole signature. returns void (so, nothing — she gives nothing back, she just does 💅), and she takes exactly one argument. slay.

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🎀 ARGUMENTS 🎀

• adev — an amdgpu_device pointer. that's it, that's the whole vibe. one pointer, one purpose 🫶

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✨ DESCRIPTION ✨

so what does she actually do? the manpage says, and i quote in spirit: she lets the UVD memory controller know it's offsets. that's the whole thing. she goes in, she tells the UVD memory controller where its offsets are at, and she's out. lowkey the most useful little errand-runner in the whole amdgpu friend group 😭👑

no drama, no extra params, no return value to stress about. just void, one adev, and a memory controller that finally knows its own offsets. periodt.

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🔥 SEE ALSO 🔥

the kernel file in question lives right here, bestie:

• ./drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c

and here's the whole squad of related functions — go say hi 👋:

• uvd_v4_2_ring_get_rptr(9)
• uvd_v4_2_ring_get_wptr(9)
• uvd_v4_2_ring_set_wptr(9)
• uvd_v4_2_hw_init(9)
• uvd_v4_2_hw_fini(9)
• uvd_v4_2_start(9)
• uvd_v4_2_stop(9)
• uvd_v4_2_ring_emit_fence(9)
• uvd_v4_2_ring_test_ring(9)
• uvd_v4_2_ring_emit_ib(9)

ngl this entire family is giving "we all live in the same file and we all have a job to do" and honestly? obsessed 💜

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and that's the page!! sourced straight from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, filed under uvd_v4_2_mc_resume(9) — go off, memory controller, know your offsets 💖✨🎀🦋