amdgpu_atpx_switchto(9)

🌸 amdgpu_atpx_switchto(9) — Kernel API Manual 🌸

okay so bestie, this is the manual page for amdgpu_atpx_switchto(9) from the Kernel API Manual, and it’s literally about switching GPUs. no cap. 💅

✨ NAME ✨

amdgpu_atpx_switchto — switch to the requested GPU, periodt. 👑

🎀 SYNOPSIS 🎀

int amdgpu_atpx_switchto (enum vga_switcheroo_client_id id );

🦋 ARGUMENTS 🦋

• id — the GPU to switch to. that’s the whole vibe check. ✨

💖 DESCRIPTION 💖

okay so listen: this function executes the necessary ATPX functions to switch between the discrete GPU and the integrated GPU — all asics, bestie, all of them. 🫶

It returns 0 on success and an error on failure. iconic behavior, honestly. 🔥

🌈 SEE ALSO 🌈

• 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_set_discrete_state(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_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)

mwah 💋 this little page lives under ./drivers/gpu/drm/amd/amdgpu, is dated October 2026, and answers to amdgpu_atpx_switchto(9). slay. 💜