zynqmp_pm_stop_rpu(9)

📦 version 7.3.1, in nixpkgs unstable

👑 zynqmp_pm_stop_rpu — stop that Cortex-R, bestie ✨

okay so real talk, this lil page lives in the Kernel API Manual (yes, that's the manual name, we're fancy now 💅) and it's about telling the Real-time Processing Unit — that's the Cortex-R on the SoC, the little sibling core — to please sit down 🪑💖

🌸 NAME 🌸

zynqmp_pm_stop_rpu — Stop Real-time Processing Unit (Cortex-R) on SoC

like, that's the whole vibe. RPU? stopped. Cortex-R? napping. the SoC is at peace ✨

🎀 SYNOPSIS 🎀

int zynqmp_pm_stop_rpu (const u32 node );

that's it. one argument. returns an int. she's lowkey minimal and I respect it 🫶

🦋 ARGUMENTS 🦋

  • node — the power-domains id of the core 💫 (not a node in the "tree" sense, bestie, it's the power-domain identifier — the id you use to point at the core you're putting to sleep 😴)

💜 RETURN 💜

returns status — either success, or error+reason 😭 (so if it flops it tells you why, which honestly? self-aware king behavior 👑)

ngl, always check the return value. no cap. a silent failure here means your RPU is out there living its truth while you think it's stopped 💀

🌈 SEE ALSO 🌈

okay this list is long long — grab a snack 🍓 — but every single one is here because the kernel file ./drivers/firmware/xilinx/zynqmp.c is a whole ecosystem, iykyk:

also the kernel file itself: ./drivers/firmware/xilinx/zynqmp.c — go read it, it's giving main character energy 📖🔥

that's the whole page, bestie!! go stop that RPU, slay, and remember: check your return status 💅 🧚‍♀️

cute lil sign-off: this masterpiece came from ./drivers/firmware/xilinx, dated October 2026 — archived in the Kernel API Manual forever and ever, mwah 😘🎀
📦 where this page comes from