amdgpu_atcs_call(9)

💅 amdgpu_atcs_call — call an ATCS method

okay so this is a page from the Kernel API Manual, section 9, and the star of the show is amdgpu_atcs_call. bestie, we're going into the ACPI-adjacent GPU guts. buckle up 🎀

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✨ NAME ✨

amdgpu_atcs_call — call an ATCS method 🦋

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🌸 SYNOPSIS 🌸

union acpi_object * amdgpu_atcs_call (struct amdgpu_atcs *atcs , int
function , struct acpi_buffer *params );

like, it hands you back a union acpi_object *, it takes three things, and yes the wrapping is exactly like that 💖

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👑 ARGUMENTS 👑

• atcs — the atcs structure, obvi. she's the whole personality here 🫶
• function — the ATCS function to execute. literally which one you're running ⭐
• params — ATCS function params. the little bundle of arguments going along for the ride 🍓

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🔥 DESCRIPTION 🔥

Executes the requested ATCS function — and yes, that's for all asics, no cap, every single one 💀✨

Returns a pointer to the acpi output buffer. that's the whole vibe check: you ask, it runs, you get a pointer back. iconic 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c
• amdgpu_atif_call(9), 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_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, go read the whole friend group, they're all linked 💜

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ok that's the page!! sourced from <pink>./drivers/gpu/drm/amd/amdgpu</pink>, dated October 2026, and the whole thing is filed under amdgpu_atcs_call(9) — mwah, go touch some kernel code bestie 💅💖