amdgpu_atif_call(9)

💅 amdgpu_atif_call — ok so this is from the Kernel API Manual, section 9, and it's literally about calling an ATIF method 🎀

✨ NAME ✨

amdgpu_atif_call — bestie, it calls an ATIF method. that's the whole vibe. 💫

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🌸 SYNOPSIS 🌸

union acpi_object * amdgpu_atif_call (struct amdgpu_atif *atif , int
function , struct acpi_buffer *params , size_t min_size );

no cap, that's the signature. four args, one return, iconic behavior 👑

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🦋 ARGUMENTS 🦋

• atif — the atif structure. your little passport of ATIF-ness 🛂
• function — the ATIF function you wanna execute. pick your fighter fr fr ⚔️
• params — the ATIF function params. the lil care package you're sending along 📦
• min_size — minimum size of the expected output buffer, in bytes. like, "bestie please give me at least this much" 📏

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💜 DESCRIPTION 💜

Executes the requested ATIF function (all asics). that's it, that's the whole thing — every asic gets the love, no gatekeeping 💅

Returns a pointer to the acpi output buffer. so like, a union acpi_object * lands in your hands and you're just standing there like 🫶

not me pointing out that it's a pointer to the acpi output buffer and not the buffer itself — know the difference, it's giving main character energy 🔥

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🌈 SEE ALSO 🌈

kernel file, right here in the source tree:

./drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c

and the whole friend group, in this exact order because i don't make the rules 🧚:

• amdgpu_atif_parse_notification(9)
• amdgpu_atif_parse_functions(9)
• amdgpu_atif_verify_interface(9)
• amdgpu_atif_get_notification_params(9)
• amdgpu_atif_query_backlight_caps(9)
• amdgpu_atif_get_sbios_requests(9)
• amdgpu_atif_handler(9)
• amdgpu_atcs_call(9)
• amdgpu_atcs_parse_functions(9)
• amdgpu_atcs_verify_interface(9)
• amdgpu_acpi_is_pcie_performance_request_supported(9)
• amdgpu_acpi_is_power_shift_control_supported(9)
• amdgpu_acpi_pcie_notify_device_ready(9)
• amdgpu_acpi_pcie_performance_request(9)
• amdgpu_acpi_power_shift_control(9)
• amdgpu_acpi_smart_shift_update(9)
• amdgpu_acpi_set_uma_allocation_size(9)
• amdgpu_acpi_get_node_id(9)
• amdgpu_acpi_event(9)
• amdgpu_acpi_init(9)
• amdgpu_acpi_fini(9)
• amdgpu_atif_pci_probe_handle(9)
• amdgpu_atcs_pci_probe_handle(9)
• amdgpu_acpi_should_gpu_reset(9)
• amdgpu_acpi_is_s3_active(9)
• amdgpu_acpi_is_s0ix_active(9)

like, that's the whole group chat, read the whole thread 😭💖

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anyway bestie, that's the page 🎀 sign-off time: this one lives in ./drivers/gpu/drm/amd/amdgpu, it's from October 2026, and the version is the Kernel API Manual — amdgpu_atif_call(9), slay, go read some kernel source, iykyk ⭐💅