amdgpu_pm_ge...ss_if_active(9)

🌸 NAME 🌸

amdgpu_pm_get_access_if_active — bestie, the title of this one lowkey spoils it: it checks if the device is active for access. That's the whole gig. 💅

(also hi, you're reading the Kernel API Manual, welcome to the function-reference corner of the group chat ✨)

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🦋 SYNOPSIS 🦋

int amdgpu_pm_get_access_if_active (struct amdgpu_device *adev );

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🎀 ARGUMENTS 🎀

• adev — the target device 🫶 that's it, that's the argument, she's the main character here.

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✨ DESCRIPTION ✨

Okay so here's the vibe: this function checks the state of adev for access. To figure out whether the device is actually active, it uses the runtime pm API — that's the whole detective situation, no cap.

And then the important part: it allows access only if the device is active. Like, if the device isn't active, you are not getting in. 🙈

Return-wise it's giving very straightforward: you get 0 if the device is accessible, or a negative error code otherwise. Not a bool, not a vibe check — an actual error code. iykyk. 💀

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🔥 SEE ALSO 🔥

First up, the kernel file herself:

• ./drivers/gpu/drm/amd/pm/amdgpu_pm.c

And then the whole friend group — every single one of these is invited to the party:

• amdgpu_pm_dev_state_check(9)
• amdgpu_pm_get_access(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)
• smartshift_bias(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)

ngl that's a long list but you asked for the whole friend group, so here's the whole friend group. ate. 👑

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Signed, sealed, delivered from ./drivers/gpu/drm/amd/pm 💌 — and yes, the date on this one is October 2026, so she's from the future, iconic behavior fr fr 🌈⭐🦋