dm_test_rv_set_wm_ranges(9)

📦 version 7.3.1, in nixpkgs unstable

💅 dm_test_rv_set_wm_ranges — Kernel API Manual 🎀

okay so bestie, we're in the Kernel API Manual and the star of today's show is dm_test_rv_set_wm_ranges(9). yes that's a whole mouthful, i know, drink some water. 🫶

✨ NAME ✨

dm_test_rv_set_wm_ranges — bestie, this one's literally a test for Raven watermark range forwarding 💖

🌸 SYNOPSIS 🌸

void dm_test_rv_set_wm_ranges (struct kunit *test );

that's it. that's the whole signature. no cap. 👑

🦋 ARGUMENTS 🦋

  • test — the KUnit test context 🧚 it's giving "i hold the receipts for whether this test passed or absolutely flopped".

🔥 DESCRIPTION 🔥

so what does this actually do? the vibe check is this: it verifies that pp_rv_set_wm_ranges converts watermark ranges via build_wm_clock_ranges_soc15, and then forwards them over to DPM — and crucially, that it does all of this without crashing. 😭💀

like yes, "doesn't crash" sounds like a low bar but bestie, in kernel land that bar is in the stratosphere. no crashing = slay. ✨

so the whole point of this test: conversion happens, forwarding happens, nobody explodes. periodt. 💅

🌈 SEE ALSO 🌈

okay bestie here's the group chat — the whole friend circle of tests hanging out with this one. i'm listing every single one because they all ate and they all deserve their moment. 👑

Kernel file

./drivers/gpu/drm/amd/display/amdgpu_dm/tests/amdgpu_dm_pp_smu_test.c

and now, the iconic lineup 💜:

and that's the whole page bestie, you ate that 🍓

okay so real talk, the source/version lives over at ./drivers/gpu/drm/amd/display/... and the date stamp is October 2026 — and the page signs off as dm_test_rv_set_wm_ranges(9), which is honestly main character energy. mwah 💋✨💖

📦 where this page comes from