intel_gt_mcr_lock_sanitize(9)

💅 intel_gt_mcr_lock_sanitize 💅

okay so bestie, welcome to the Kernel API Manual — yes you're literally reading kernel docs rn, look at you go 🎀

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✨ NAME ✨

intel_gt_mcr_lock_sanitize — the function that does a lil glow-up on the MCR steering lock 🌸

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🦋 SYNOPSIS 🦋

void intel_gt_mcr_lock_sanitize (struct intel_gt *gt );

no return value, no drama, just vibes and a pointer 🫶

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💜 ARGUMENTS 💜

• gt — the GT structure. that's it, that's the whole argument, she's low maintenance 👑

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🔥 DESCRIPTION 🔥

okay so picture this: you're doing driver load or resume, and there's literally zero concurrent access from other agents at those times — nobody else is in the group chat, it's just you 💅

which is exactly why this function exists: it sanitizes the initial status of the hardware lock during that window. ✨

but here's the plot twist 😭 boot firmware might have left that lock in a bad state — like it ghosted the lock, left it messy, made it look a whole way. so we clean it up. main character energy, honestly. 👑

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🌈 SEE ALSO 🌈

• the kernel file ./drivers/gpu/drm/i915/gt/intel_gt_mcr.c
• GT Multicast/Replicated (MCR) Register Support(9)
• intel_gt_mcr_lock(9)
• intel_gt_mcr_unlock(9)
• intel_gt_mcr_read(9)
• intel_gt_mcr_unicast_write(9)
• intel_gt_mcr_multicast_write(9)
• intel_gt_mcr_multicast_write_fw(9)
• intel_gt_mcr_multicast_rmw(9)
• intel_gt_mcr_get_nonterminated_steering(9)
• intel_gt_mcr_read_any_fw(9)
• intel_gt_mcr_read_any(9)
• intel_gt_mcr_get_ss_steering(9)
• intel_gt_mcr_wait_for_reg(9)

like yes that's a lot of siblings but they're all iconic in their own way 💖

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that's the whole page bestie, hope it ate 🍓

sign-off szn: this one lives over in ./drivers/gpu/drm/i915/gt, it's dated October 2026, and you can find it filed under intel_gt_mcr_lock_sanitize(9) — iykyk 💅✨