amdgpu_gart_map(9)

💅 amdgpu_gart_map(9) — from the Kernel API Manual, bestie

Okay so this is amdgpu_gart_map, straight out of the Kernel API Manual, and it's honestly that girl. Let's get into it ✨

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🌸 NAME 🌸

amdgpu_gart_map — the one that maps dma_addresses into GART entries. That's it, that's the whole vibe 🎀

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✨ SYNOPSIS ✨

void amdgpu_gart_map (struct amdgpu_device *adev , uint64_t offset , int
pages , dma_addr_t *dma_addr , uint64_t flags , void *dst );

Not me copying this exactly because you NEED it exactly 🫶

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💖 ARGUMENTS 💖

• adev — amdgpu_device pointer. Your main character struct, fr.
• offset — offset into the GPU's gart aperture. Where we're dropping this thing off 💅
• pages — number of pages to bind. Count 'em, bestie.
• dma_addr — DMA addresses of pages. The slay locations in question.
• flags — page table entry flags. Little personality settings for your entries ✨
• dst — CPU address of the gart table. The destination, obviously, no cap.

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🦋 DESCRIPTION 🦋

So what it does: map the dma_addresses into GART entries — and that's for all asics, not just the cool ones 💀

Returns 0 for success, -EINVAL for failure. Like yes it's declared void up in the synopsis, and the description is out here talking about return values — iykyk, we just report what the docs say, periodt 🌈

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👑 SEE ALSO 👑

Kernel file: ./drivers/gpu/drm/amd/amdgpu/amdgpu_gart.c — go read it, it's giving source of truth 📖

And the whole friend group, because none of them are doing it alone 🔥

• amdgpu_gart_dummy_page_init(9)
• amdgpu_gart_dummy_page_fini(9)
• amdgpu_gart_table_ram_alloc(9)
• amdgpu_gart_table_ram_free(9)
• amdgpu_gart_table_vram_alloc(9)
• amdgpu_gart_table_vram_free(9)
• amdgpu_gart_unbind(9)
• amdgpu_gart_map_vram_range(9)
• amdgpu_gart_map_gfx9_mqd(9)
• amdgpu_gart_bind(9)
• amdgpu_gart_invalidate_tlb(9)
• amdgpu_gart_init(9)

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ngl this whole page lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026, under the name amdgpu_gart_map(9). That's the sign-off bestie, mwah 💋 🧚