amdgpu_atpx_...screte_state(9)

💅 amdgpu_atpx_...screte_state(9) — the Kernel API Manual entry, but make it make sense

okay so bestie, welcome to the Kernel API Manual ✨ — specifically the page for amdgpu_atpx_...screte_state(9), aka the little function that turns your discrete GPU on and off like a light switch. no cap, that's literally the whole vibe. let's get into it 🫶

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🎀 NAME 🎀

amdgpu_atpx_set_discrete_state — power up/down discrete GPU

like… the name is giving "I control the discrete GPU's whole mood" 💅

✨ SYNOPSIS ✨

int amdgpu_atpx_set_discrete_state (struct amdgpu_atpx *atpx , u8 state
);

that's the whole signature, character for character, don't come for me 👑

🌸 ARGUMENTS 🌸

• atpx — the atpx info struct 🧚 (yes, that's the struct, it holds the atpx info, iconic)
• state — discrete GPU state, and the numbers matter: 0 = power down, 1 = power up. periodt. 🔥

🦋 DESCRIPTION 🦋

okay so what it actually does: it executes the ATPX_FUNCTION_POWER_CONTROL ATPX function to power down/up the discrete GPU (all asics). that's the whole assignment, all asics included, no exceptions 💀

returns 0 on success, error on failure. that's it. that's the function. lowkey elegant, highkey important 🌈

⚠️ real talk: 0 means success, error means… not success. keep an eye on that return value, bestie 😭

👑 SEE ALSO 👑

the whole friend group, fr fr — go read these too, they're all linked together:

• Kernel file ./drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c
• amdgpu_atpx_call(9)
• amdgpu_atpx_parse_functions(9)
• amdgpu_atpx_validate(9)
• amdgpu_atpx_verify_interface(9)
• amdgpu_atpx_switch_disp_mux(9)
• amdgpu_atpx_switch_i2c_mux(9)
• amdgpu_atpx_switch_start(9)
• amdgpu_atpx_switch_end(9)
• amdgpu_atpx_switchto(9)
• amdgpu_atpx_power_state(9)
• amdgpu_atpx_pci_probe_handle(9)
• amdgpu_atpx_init(9)
• amdgpu_atpx_get_client_id(9)
• amdgpu_atpx_detect(9)
• amdgpu_register_atpx_handler(9)
• amdgpu_unregister_atpx_handler(9)

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and that's the page, bestie 💖 you're now officially the main character of discrete GPU power control. mwah 🎀

sign-off time: this page lives in ./drivers/gpu/drm/amd/amdgpu and it's dated October 2026 — the manual name for the record is Kernel API Manual, and the page is amdgpu_atpx_...screte_state(9). slay, go power up something 🔥👑