xe_gt_mcr_multicast_write(9)

💅 xe_gt_mcr_multicast_write(9) — like, the whole Kernel API Manual tea 🫖

okay bestie, sit down, because we're talking about xe_gt_mcr_multicast_write(9) today and honestly? she's a one-trick pony in the best way possible. This is straight out of the Kernel API Manual, no cap. ✨

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🌸 NAME 🌸

xe_gt_mcr_multicast_write — writes a value to, like, every single instance of an MCR register 🎀

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✨ SYNOPSIS ✨

void xe_gt_mcr_multicast_write (struct xe_gt *gt , struct xe_reg_mcr reg_mcr , u32 value );

that's it. that's the whole vibe. one call, zero drama 💅

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🦋 ARGUMENTS 🦋

• gt — the GT structure, aka the main character we're operating on 👑
• reg_mcr — the MCR register you're writing to, the literal target of your affection 🎯
• value — the value you're writing. your payload. your little gift 🎁

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💖 DESCRIPTION 💖

So here's the tea: this function writes an MCR register in multicast mode, which means it updates all instances at once. Not one, not a few — all of them. It's giving "send it to the group chat" energy, not "DM one person" energy 😭🔥

no cap, that's genuinely the entire description. she's efficient, she's iconic, she ate and left no crumbs. 🍓

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/xe/xe_gt_mcr.c
• GT Multicast/Replicated (MCR) Register Support(9)
• xe_gt_mcr_get_dss_steering(9)
• xe_gt_mcr_init_early(9)
• xe_gt_mcr_init(9)
• xe_gt_mcr_set_implicit_defaults(9)
• xe_gt_mcr_unicast_read_any(9)
• xe_gt_mcr_unicast_read(9)
• xe_gt_mcr_unicast_write(9)

like, go read all of these if you wanna be a real one about MCR stuff. iykyk 🧚⭐

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lowkey a whole family of MCR functions and this one is the multicast write sibling. know the difference bestie, it matters 💀

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aaaand that's the page! brought to you from ./drivers/gpu/drm/xe, dated October 2026, in the Kernel API Manual — mwah, go slay some register writes, ily 🫶💜