mem_info_gtt_total(9)

💅 mem_info_gtt_total

okay bestie, welcome to the Kernel API Manual — this one's a section 9 page and honestly it's short and sweet, so let's get into it 🎀

🌸 the vibes (a.k.a. what this even is)

So the amdgpu driver? It's out here providing a sysfs API for reporting the current total size of the GTT. That's it, that's the whole personality ✨

The file you wanna look at is mem_info_gtt_total, and it's literally the main character for this job — it returns the total size of the GTT block, in bytes. No cap, that's the entire flex 🔥

ngl this one is a tiny page, so don't go looking for a million options — there aren't any. it just tells you the total GTT size in bytes and minds its business 💅

✨ SEE ALSO ✨

like, go read these next, iykyk 🫶

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
• mem_info_gtt_used(9)
• amdgpu_gtt_mgr_has_gart_addr(9)
• amdgpu_gtt_mgr_mark_bo_teardown(9)
• amdgpu_gtt_mgr_new(9)
• amdgpu_gtt_mgr_del(9)
• amdgpu_gtt_mgr_alloc_entries(9)
• amdgpu_gtt_mgr_free_entries(9)
• amdgpu_gtt_mgr_recover(9)
• amdgpu_gtt_mgr_intersects(9)
• amdgpu_gtt_mgr_compatible(9)
• amdgpu_gtt_mgr_debug(9)
• amdgpu_gtt_mgr_init(9)
• amdgpu_gtt_mgr_fini(9)

and that's the whole page, bestie 💖 this little icon lives over in ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and it goes by mem_info_gtt_total(9) — mwah, slay, go read the source 🌈👑