smartshift_bias(9)

💅 smartshift_bias(9) 🎀

okay so you just opened smartshift_bias(9) from the Kernel API Manual and honestly? it's a short one, but she's cute. let's get into it bestie 🫶

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✨ NAME ✨

smartshift_bias — the amdgpu driver's sysfs API for reporting the smartshift (SS2.0) bias level. that's it, that's the vibe 💖

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🦋 DESCRIPTION 🦋

okay so the amdgpu driver gives you a sysfs API for reporting the smartshift (SS2.0) bias level. literally what it says on the tin ✨

the value ranges from -100 to 100 and the default is 0. and the way it works is:

• -100 sets maximum preference to the APU 👑
• 100 sets max perference to the dGPU 🔥 (yes, "perference" — that's how it's spelled in the source, no cap, we do not correct the kernel's typo, we respect it 💀)

so think of it as a slider between your APU and your dGPU. 0 is the chill middle, -100 is APU main character energy, 100 is dGPU all the way. periodt 💅

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🌈 SEE ALSO 🌈

so many friends, a whole group chat honestly 😭 here's everyone:

• the kernel file itself: ./drivers/gpu/drm/amd/pm/amdgpu_pm.c 🍓
• amdgpu_pm_dev_state_check(9), amdgpu_pm_get_access(9), amdgpu_pm_get_access_if_active(9), amdgpu_pm_put_access(9)
• power_dpm_state(9), power_dpm_force_performance_level(9), pp_table(9), pp_od_clk_voltage(9), pp_features(9)
• pp_dpm_sclk pp_dpm_mclk pp_dpm_socclk pp_dpm_fclk pp_dpm_dcefclk pp_dpm_pcie(9)
• pp_power_profile_mode(9), gpu_busy_percent(9), mem_busy_percent(9), vcn_busy_percent(9), pcie_bw(9), unique_id(9)
• thermal_throttling_logging(9), apu_thermal_cap(9), gpu_metrics(9)
• smartshift_apu_power(9), smartshift_dgpu_power(9)
• board(9), baseboard_temp(9), gpuboard_temp(9)
• cur_node_power_limit(9), node_power(9), npm_status(9), global_ppt_resid(9), max_node_power_limit(9), baseboard_power(9), baseboard_power_limit(9), pm_policy(9)
• hwmon(9), fan_curve(9), acoustic_limit_rpm_threshold(9), acoustic_target_rpm_threshold(9), fan_target_temperature(9), fan_minimum_pwm(9), fan_zero_rpm_enable(9), fan_zero_rpm_stop_temperature(9)

like I said. whole group chat. iykyk 💜

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ngl bestie, there's no OPTIONS section here — smartshift_bias is a sysfs attribute, not a command. so no flags to memorise, you're free 🦋

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and that's the whole page!! 🧚✨ this lil beauty lives in ./drivers/gpu/drm/amd/pm and she's dated October 2026 — mwah, go read the rest of the amdgpu sysfs pages, they're iconic 💋👑