dc_assert_fp_enabled(9)

💅 dc_assert_fp_enabled — a Kernel API Manual moment (section 9, bestie) 🎀

okay so first things first: this gorgeous little page lives in the Kernel API Manual, section 9, and the whole entire star of the show is dc_assert_fp_enabled. say it with me. iconic.

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✨ NAME ✨

dc_assert_fp_enabled — literally just checks if FPU protection is enabled, that's it, that's the vibe 🦋

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🌸 SYNOPSIS 🌸

void dc_assert_fp_enabled (void );

like, no cap, that's the whole signature. she's lowkey minimalist.

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🎀 ARGUMENTS 🎀

• void — no arguments. zero. none. she takes nothing from nobody, periodt 💅

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💖 DESCRIPTION 💖

okay so here's the tea: this function tells you whether the code is already under FPU protection or not. that's the entire job. she's not doing anything fancy, she's just telling you. 🫶

and like, a function that works as an API for a set of FPU operations can use this function for checking if the caller invoked it after DC_FP_START. yep — that's the whole point. she's the vibe check for "did you actually wrap this in DC_FP_START first, or are you out here freelancing??" 😭

for example, take a look at dcn20_fpu.c file. that's your reference material, bestie, go read it. 📖✨

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/amd/display/amdgpu_dm/dc_fpu.c — the source file, the mothership, the main character 👑
• DC FPU manipulation overview(9) — the big-picture lore, start here honestly
• dc_is_fp_enabled(9) — the sibling that asks a very similar question 👀
• dc_fpu_begin(9) — the opening act 🌅
• dc_fpu_end(9) — the closing act 🌙

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ngl if you're calling FPU stuff without checking your protection status first, that's giving chaos energy and not in a fun way 💀 go read dcn20_fpu.c, i'm begging.

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and that's the page!! 🍓 sign-off time: this lil beauty comes from ./drivers/gpu/drm/amd/display/... and she's dated October 2026 — put that in your calendar, mwah 💜🧚‍♀️