intel_region_ttm_init(9)

💅 intel_region_ttm_init(9) 💅

okay so bestie, welcome to the Kernel API Manual — this one's a function page from the i915 fam, and it's honestly giving "small function, big job" energy. let's go 🎀

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✨ NAME ✨

intel_region_ttm_init — the glow-up ritual that initializes a memory region for TTM. no cap, that's literally it. 🦋

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✨ SYNOPSIS ✨

int intel_region_ttm_init (struct intel_memory_region *mem );

one argument, one job, main character energy only 💅

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✨ ARGUMENTS ✨

• mem — the region we're initializing. that's the whole vibe. it's the struct intel_memory_region you're handing over to get set up. 🫶

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✨ DESCRIPTION ✨

so what does she actually do? two things, and she does them well:

1. she initializes a suitable TTM resource manager for the region ✨
2. if it's a LMEM region type, she attaches it to the TTM device 🔥

and now for the plot twist 😭 — MOCK regions are NOT attached to the TTM device. why? because we literally don't have one for the mock selftests. like, there's nothing to attach to, bestie. so she just... doesn't. periodt. 💀

ngl this is the kind of detail that'll vibe-check you in a selftest if you forget it, so keep it in your notes 🍓

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✨ RETURN ✨

• 0 — success, we ate 👑
• negative error code — failure, it's giving sad girl hours 😭

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✨ SEE ALSO ✨

• Kernel file ./drivers/gpu/drm/i915/intel_region_ttm.c — the source, go read her 📖
• TTM support structure(9)
• intel_region_ttm_device_init(9)
• intel_region_ttm_device_fini(9)
• intel_region_ttm_fini(9)
• intel_region_ttm_resource_to_rsgt(9)
• intel_region_ttm_resource_alloc(9)
• intel_region_ttm_resource_free(9)

literally the whole friend group, iykyk 💜

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and that's the page!! mwah 🧚 it lives over in ./drivers/gpu/drm/i915, dated October 2026, and it's the Kernel API Manual version of intel_region_ttm_init(9) — slay, go init some regions 💖🌈⭐