amdgpu_ttm_tt_get_userptr(9)

🎀 amdgpu_ttm_tt_get_userptr(9) 🎀

okay bestie, welcome to the Kernel API Manual — today’s main character is amdgpu_ttm_tt_get_userptr(9) and it’s literally giving “tiny function, big userptr energy” ✨. No cap, this one is all about returning the userptr GTT ttm_tt for the current task. Let’s get into it 💅.

✨ NAME ✨

amdgpu_ttm_tt_get_userptr — Return the userptr GTT ttm_tt for the current task 💖

🌸 SYNOPSIS 🌸

int amdgpu_ttm_tt_get_userptr (const struct ttm_buffer_object *tbo ,
uint64_t *user_addr );

🦋 ARGUMENTS 🦋

• tbo — the ttm_buffer_object that contains the userptr. That’s the input bestie, the object holding the userptr vibe 🫶.
• user_addr — the returned value. Literally the value that gets returned, no extra lore 🙈.

🔥 SEE ALSO 🔥

okay so the kernel file is ./drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c — that’s home base 🏠. And here’s the whole squad of related functions, all linked and iconic 👑:

• amdgpu_evict_flags(9)
• amdgpu_ttm_map_buffer(9)
• amdgpu_ttm_copy_mem_to_mem(9)
• amdgpu_res_cpu_visible(9)
• amdgpu_ttm_domain_start(9)
• amdgpu_ttm_mmio_remap_alloc_sgt(9)
• amdgpu_ttm_tt_create(9)
• amdgpu_ttm_tt_set_userptr(9)
• amdgpu_ttm_tt_pde_flags(9)
• amdgpu_ttm_tt_pte_flags(9)
• amdgpu_ttm_access_memory(9)
• amdgpu_ttm_training_reserve_vram_fini(9)
• amdgpu_ttm_alloc_mmio_remap_bo(9)
• amdgpu_ttm_free_mmio_remap_bo(9)
• amdgpu_ttm_enable_buffer_funcs(9)
• amdgpu_ttm_disable_buffer_funcs(9)
• amdgpu_ttm_clear_buffer(9)
• amdgpu_ttm_evict_resources(9)

mwah 💋 that’s the page! It lives in ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and the manual name on the footer is amdgpu_ttm_tt_get_userptr(9). Bye bestie, go slay those userptrs 🫶✨