uvd_v4_2_resume(9)

💖 uvd_v4_2_resume(9) 💖

okay so welcome to the Kernel API Manual bestie, this one's a lil baby page but she's important 🎀 it's all about uvd_v4_2_resume, a kernel function that wakes the UVD back up and gets her memory controller caught up. strap in, it's short but it slays ✨

🌸 NAME 🌸

uvd_v4_2_resume — memory controller programming, but make it a comeback tour 💅

🦋 SYNOPSIS 🦋

int uvd_v4_2_resume (struct radeon_device *rdev );

like, that's the whole signature, no cap — it takes one pointer and hands you back an int 🫶

✨ ARGUMENTS ✨

• rdev — a radeon_device pointer. that's your whole radeon device, the main character of this lil story 👑

🌈 DESCRIPTION 🌈

so here's the vibe: this function lets the UVD memory controller know its offsets 💀 like literally, that's the entire job description. the memory controller was sitting there not knowing where anything lives, and uvd_v4_2_resume rolls up and is like "bestie, here are your offsets" and now everything's fine. iconic behavior, honestly 🎀✨

🧚 SEE ALSO 🧚

• Kernel file ./drivers/gpu/drm/radeon/uvd_v4_2.c — go read the source if you wanna see her in her natural habitat 🦋

ngl this is one of those tiny manpages that's like three lines long but you still gotta read it before you poke at the radeon driver. respect the process 🙈

and that's a wrap, mwah 💋 this lil page lives under ./drivers/gpu/drm/radeon (Kernel API Manual vibes, version-coded as of October 2026) — go forth and resume responsibly 🫶💜🌸