dm_test_bac...eallows_idle(9)

📦 version 7.3.1, in nixpkgs unstable

✨ dm_test_bac...eallows_idle(9) ✨

okay so bestie, we're diving into the Kernel API Manual 💅 and today's main character is a KUnit test with an absolutely iconic long name that got truncated at the party: dm_test_bac...eallows_idle(9). yes the header is giving "my name is too long for the door" energy 😭 but we move.

🌸 NAME 🌸

dm_test_backlight_set_level_reallows_idle — it tests the idle-optimization toggle path. that's it. that's the whole vibe. ✨

🦋 SYNOPSIS 🦋

void dm_test_backlight_set_level_reallows_idle (struct kunit *test );

🎀 ARGUMENTS 🎀

  • test — the KUnit test context. that's the whole luggage she brings, and honestly? she travels light. 🧳

💜 DESCRIPTION 💜

so here's the tea, bestie 🍓: when ips_support is set and dmub idle is allowed, set_level disables idle optimizations around the programming call and then re-enables them afterwards. slay. it always comes back. periodt.

meanwhile, disable_idle_power_optimizations keeps dc_allow_idle_optimizations a safe early return — no chaos, no drama, just a clean exit 😌.

and ctx->logger is wired because DC_LOG_* dereferences it. like, it literally needs it or it falls apart. so we wire it. no cap. 🔥

ngl this is a small test but it's doing the lord's work keeping the toggle path honest 🫶

👑 SEE ALSO 👑

Kernel file

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

and now, the moment you've all been waiting for — the whole entire friend group 💅 (yes, all of them, I would never do you dirty by cutting the list):

okay that's the whole page, bestie, you ate that 🍽️💖

sign-off time: this cutie lives in the sources under ./drivers/gpu/drm/amd/display/..., the manual says October 2026 📅, and it's filed under dm_test_bac...eallows_idle(9) in the Kernel API Manual. iykyk 🦋✨🎀

📦 where this page comes from