sq_unmap(9)

💜 sq_unmap(9) — the un-mapping icon ✨

okay bestie, welcome to the sq_unmap page from the Kernel API Manual 🎀 this is the little cleanup queen of the SuperH store queue world, and she's here to take out the trash (the trash being a mapping you made earlier) 💅

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✨ SYNOPSIS ✨

void sq_unmap (unsigned long vaddr );

that's it. that's the whole vibe check. no return value, no drama, just vibes and a void 🫶

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🌸 ARGUMENTS 🌸

• vaddr — the Pre-allocated Store Queue mapping, i.e. the address of the mapping you already set up. you're handing it over and saying "yeah this one, take it away bestie" 🙈

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🦋 DESCRIPTION 🦋

so like. remember that store queue allocation map you made earlier with sq_remap? yeah. sq_unmap is the one who unmaps it. the reverse slay. 🔥

and she doesn't just stop there, because she's a whole overachiever:

• she frees up the pte that was previously inserted into the kernel page table 🧚
• and she discards the UTLB translation ✨

literally full cleanup, no crumbs left behind. main character energy fr fr 👑

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💖 SEE ALSO 💖

• Kernel file ./arch/sh/kernel/cpu/sh4/sq.c
• sq_flush_range(9) 🌈
• sq_remap(9) 🌈

go read those if you wanna know how the mapping got there in the first place, iykyk 😌

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ngl bestie, the source on this one lives in ./arch/sh/kernel/cpu/sh4 — and this page is dated October 2026. consider that your cute little sign-off 💫 bye pookie, go free those ptes 💅💜