amdgpu_acpi_...ance_request(9)

💅 amdgpu_acpi_...ance_request(9) 💅

okay so this is a page straight out of the Kernel API Manual — welcome bestie, we're looking at amdgpu_acpi_pcie_performance_request today and honestly she's a little niche but she serves 🫶

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✨ NAME ✨

amdgpu_acpi_pcie_performance_request — (yes that's it, that's the whole vibe, the description slot is literally empty, no cap, we move 💀)

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🌸 SYNOPSIS 🌸

int amdgpu_acpi_pcie_performance_request (struct amdgpu_device *adev ,
u8 perf_req , bool advertise );

it's giving "three little args and a dream" 💖

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🎀 ARGUMENTS 🎀

• adev — the amdgpu_device pointer. your main character, the GPU herself 👑
• perf_req — the requested perf level, i.e. the pcie gen speed you're asking for. u8 energy ✨
• advertise — sets the advertise caps flag if it's set. little flag, big job 🦋

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🔥 DESCRIPTION 🔥

so what she actually does: she executes the PCIE_PERFORMANCE_REQUEST method to change the pcie gen speed — and this applies to all asics, periodt 💅

returns 0 on success, error on failure. that's the whole deal, fr fr.

ngl the whole description is like two lines and I respect the economy — get in, flip the pcie gen speed, get out 💜

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🌈 SEE ALSO 🌈

the kernel file lives at ./drivers/gpu/drm/amd/amdgpu/amdgpu_acpi.c — that's where the source is, go look if you're nosy (respectfully) 🧚

and here's the whole friend group, in order, no one left out:

• 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_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_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 entire group chat and they're all invited 🎉

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mwah 💋 that's the page — signed off from ./drivers/gpu/drm/amd/amdgpu, dated October 2026, and yeah the man page name is amdgpu_acpi_...ance_request(9) because she got truncated at the function-name party and honestly the ellipsis is a lewk 🙈 stay slay, go read your kernel source 💜