amdgpu_ttm_e...buffer_funcs(9)

💖 amdgpu_ttm_e...buffer_funcs(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes, the whole manual, and today's main character is amdgpu_ttm_enable_buffer_funcs(9) ✨ (the header's out here abbreviating it like amdgpu_ttm_e...buffer_funcs(9) because apparently even kernel docs have a character limit, slay 💅).

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🌸 NAME 🌸

amdgpu_ttm_enable_buffer_funcs — literally just: enable use of buffer functions 🫶

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🎀 SYNOPSIS 🎀

void amdgpu_ttm_enable_buffer_funcs (struct amdgpu_device *adev );

(no cap, that's the whole signature — copy it exactly, spacing and all, because the kernel does not do typos-forgiveness 🙈)

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🦋 ARGUMENTS 🦋

• adev — an amdgpu_device pointer. that's it. that's the whole vibe. it's giving "one job and she's doing it" 💅

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✨ DESCRIPTION ✨

so what does it do? it enables the use of buffer functions during suspend/resume 💤🔥

big important caveat bestie, read this twice: this should only be called at bootup or when userspace isn't running. like, do not just call this whenever. the vibe check is strict here 😭

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🌈 SEE ALSO 🌈

the kernel file it lives in:

• ./drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c

and now the whole friend group 👑 (yes, all of them, we don't skip anyone at this table):

• 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_get_userptr(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_disable_buffer_funcs(9)
• amdgpu_ttm_clear_buffer(9)
• amdgpu_ttm_evict_resources(9)

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🧚 sign-off 🧚

and that's the page, bestie!! 🍓 sourced straight from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, under the title amdgpu_ttm_e...buffer_funcs(9) — periodt 💜 go call your buffer functions responsibly and only at bootup, mwah 💋