Performance and power tuning user interface
Power management in a computing device. A driver is registered with an operating system (OS) executing on the computing device to receive information about a position of a user interface control. If the user interface control is moved, the driver receives a notification of the user interface control position and determines a power management intervention based on the position The driver transmits the power management intervention to power control circuitry which sets a power setting of the computing device based on the intervention.
1. A method for power management in a computing device, the method comprising:
transmitting, by an operating system (OS) executing on the computing device to a driver, a first notification;
receiving, by the driver, the first notification;
determining, by the driver, based on the first notification, a power management intervention;
transmitting, by the driver to power control circuitry, a second notification of the determined power management intervention; and
setting, by the power control circuitry, a power setting of the computing device based on the determined power management intervention.
2. The method of claim 1 , wherein the driver comprises a graphics driver.
3. The method of claim 1 , wherein the driver receives the first notification on a periodic basis.
4. The method of claim 1 , wherein the computing device comprises a central processing unit (CPU).
5. The method of claim 1 , wherein the power control circuitry comprises a system management unit (SMU).
6. The method of claim 1 , wherein the power control circuitry is implemented on a central processing unit (CPU).
7. The method of claim 1 , wherein the power management intervention comprises setting a maximum voltage or maximum power of the computing device.
8. The method of claim 1 , wherein the power management intervention comprises setting a maximum voltage or maximum power for a specific power domain of the computing device.
9. The method of claim 1 , wherein the power management intervention comprises setting a maximum clock frequency or maximum power of the computing device.
10. The method of claim 1 , wherein the power management intervention comprises setting a maximum clock frequency for a specific clock domain of the computing device.
11. A computing device configured for power management, comprising:
circuitry configured to
transmit, by an operating system (OS) executing on the computing device to a driver, a first notification;
receive, by the driver from the OS, the first notification;
determine, by the driver, based on the first notification, a power management intervention;
transmit, by the driver to power control circuitry, a second notification of the determined power management intervention; and
set, by the power control circuitry, a power setting of the computing device based on the determined power management intervention.
12. The computing device of claim 11 , wherein the driver comprises a graphics driver.
13. The computing device of claim 11 , wherein the driver receives the first notification of on a periodic basis.
14. The computing device of claim 11 , wherein the computing device comprises a central processing unit (CPU).
15. The computing device of claim 11 , wherein the power control circuitry comprises a system management unit (SMU).
16. The computing device of claim 11 , wherein the power control circuitry is implemented on a central processing unit (CPU).
17. The computing device of claim 11 , wherein the power management intervention comprises setting a maximum voltage or maximum power of the computing device.
18. The computing device of claim 11 , wherein the power management intervention comprises setting a maximum voltage or maximum power for a specific power domain of the computing device.
19. The computing device of claim 11 , wherein the power management intervention comprises setting a maximum clock frequency or maximum power of the computing device.
20. The computing device of claim 11 , wherein the power management intervention comprises setting a maximum clock frequency for a specific clock domain of the computing device.