intel_sseu_c...mask_to_user(9)

💅 intel_sseu_c...mask_to_user(9) — like, the Kernel API Manual page, bestie ✨

Okay so this is intel_sseu_c...mask_to_user(9) from the Kernel API Manual, and it's honestly a little icon of a function. Let's get into it 🫶

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🌸 NAME 🌸

intel_sseu_copy_ssmask_to_user — copies the subslice mask straight into a userspace buffer. That's the whole vibe. No cap 💖

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✨ SYNOPSIS ✨

int intel_sseu_copy_ssmask_to_user (void __user *to , const struct
       sseu_dev_info *sseu );

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🎀 ARGUMENTS 🎀

• to — pointer to the userspace buffer you're copying into. Like, this is where the good stuff lands 💫
• sseu — the SSEU structure that's holding the subslice mask you wanna copy. She's the source of truth 👑

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🦋 DESCRIPTION 🦋

So what she does is: copies the subslice mask into a userspace buffer, in the exact format that the query ioctl's topology queries are expecting. Format match = chef's kiss 💋👌

And then — and this is the main character part — she returns the result of the copy_to_user operation. Like she's literally just handing you the outcome. Periodt 🔥

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/i915/gt/intel_sseu.c — go read her, she ate 📖
• intel_sseu_copy_eumask_to_user(9) — the sibling function, same energy, different mask 💜

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lowkey a short page but she's efficient and we respect that 💅

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And that's the tea, bestie 🍓 This lil page lives in ./drivers/gpu/drm/i915/gt, dated October 2026, and she goes by intel_sseu_c...mask_to_user(9) — ily, go copy some masks ✨💖🎀