gmc_v8_0_gart_enable(9)

💖 gmc_v8_0_gart_enable(9) 💖

okay so bestie, welcome to the Kernel API Manual, section 9 — this is the page for gmc_v8_0_gart_enable, and honestly? it's giving "the setup queen of the graphics memory controller" and I'm obsessed. let's get into it ✨

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🌸 NAME 🌸

gmc_v8_0_gart_enable — gart enable. that's it. that's the whole name. short, sweet, and lowkey iconic 💅

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🦋 SYNOPSIS 🦋

int gmc_v8_0_gart_enable (struct amdgpu_device *adev );

so it takes one thing and gives you back an int. no cap, that's the whole signature 🫶

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🎀 ARGUMENTS 🎀

• adev — an amdgpu_device pointer. literally just the device handle you're passing in, bestie. that's the vibe 💜

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✨ DESCRIPTION ✨

okay so here's what this function actually does, and it does a LOT, main character energy fr fr 👑

it sets up the TLBs. it programs the page tables for VMID0. it sets up the hardware for VMIDs 1-15 — and those ones are allocated on demand, iykyk, they show up when they're needed 🧚

then it sets up the global locations for the LDS, the GDS, and the GPUVM for FSA64 clients (VI). all of that. in one function. slay 💀

as for what you get back: it returns 0 for success, and errors for failure. so like, if you see a 0 you're thriving, and if you see anything else... you're not 🌈

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c — that's where the actual code lives, go look at her 💖
• gmc_v8_0_init_microcode(9)
• gmc_v8_0_tonga_mc_load_microcode(9)
• gmc_v8_0_mc_program(9)
• gmc_v8_0_mc_init(9)
• gmc_v8_0_flush_gpu_tlb_pasid(9)
• gmc_v8_0_flush_gpu_tlb(9)
• gmc_v8_0_set_fault_enable_default(9)
• gmc_v8_0_set_prt(9)
• gmc_v8_0_gart_disable(9) — the girlies who undo what we just did, we respect her 🙈
• gmc_v8_0_vm_decode_fault(9)

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bestie reminder: all of these live in ./drivers/gpu/drm/amd/amdgpu, so like... go read them, they're right there 🍓

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and that's the page!! sign-off time: this lil beauty comes to you from ./drivers/gpu/drm/amd/amdgpu, dated October 2026 — take care of her, she's doing a lot of hardware setup for you 💜🎀🦋