Abstract: Apparatus and methods for managing power consumption of a data-path in a computer system are provided, the data-path comprising a first port and a second port, the first port comprising a high-speed and the second port comprising a low-speed port. The disclosed method including connecting a device to the data-path, determining that the connected device is to communicate using the second port and turning off an active circuit associated with the first port of the data-path.

Abstract: Automatic-switching and deployment of software (SW)- or firmware (FW)-based USB4 connection managers (CMs) and associated methods, apparatus, software and firmware. A handshake is defined between BIOS and an operating system (OS) to discover supported CM capability and dynamically switch from a FW CM to a SW CM and visa verse if there is a mismatch. In addition, a mechanism is defined to deploy the correct FW or SW CM driver based on class code, 2-part or 4-part ID. Support for continued USB4 operation during an OS upgrade or downgrade is provided, while ensuring that the best possible CM solution is used based on the advertised platform and OS capability. USB4 controllers support a pass-through mode under which the host controller FW redirects control packets sent between an SW CM and a USB4 fabric, and a FW CM mode under which control packets are communicated between the host controller FW and the USB4 fabric to configure USB4 peripheral devices and/or USB4 hubs in the USB4 fabric.

Abstract: In some embodiments, a PPM interface for a computing platform may be provided with functionality to facilitate, to an OS through the PPM interface, firmware performance data.

Abstract: In one embodiment, a system on chip includes: at least one core; a plurality of intellectual property (IP) agents coupled to the at least one core; a shared power rail to provide an operating voltage to the plurality of IP agents; and a power controller, in response to an indication that the plurality of IP agents are in an idle state and the at least one core is in an active state, to power down the shared power rail while the at least one core remains in the active state. Other embodiments are described and claimed.

Abstract: Apparatus and methods for managing power consumption of a data-path in a computer system are provided, the data-path comprising a first port and a second port, the first port comprising a high-speed and the second port comprising a low-speed port. The disclosed method including connecting a device to the data-path, determining that the connected device is to communicate using the second port and turning off an active circuit associated with the first port of the data-path.

Abstract: Automatic-switching and deployment of software (SW)- or firmware (FW)-based USB4 connection managers (CMs) and associated methods, apparatus, software and firmware. A handshake is defined between BIOS and an operating system (OS) to discover supported CM capability and dynamically switch from a FW CM to a SW CM and visa verse if there is a mismatch. In addition, a mechanism is defined to deploy the correct FW or SW CM driver based on class code, 2-part or 4-part ID. Support for continued USB4 operation during an OS upgrade or downgrade is provided, while ensuring that the best possible CM solution is used based on the advertised platform and OS capability. USB4 controllers support a pass-through mode under which the host controller FW redirects control packets sent between an SW CM and a USB4 fabric, and a FW CM mode under which control packets are communicated between the host controller FW and the USB4 fabric to configure USB4 peripheral devices and/or USB4 hubs in the USB4 fabric.

Abstract: In one embodiment, a system on chip includes: at least one core; a plurality of intellectual property (IP) agents coupled to the at least one core; a shared power rail to provide an operating voltage to the plurality of IP agents; and a power controller, in response to an indication that the plurality of IP agents are in an idle state and the at least one core is in an active state, to power down the shared power rail while the at least one core remains in the active state. Other embodiments are described and claimed.

Abstract: In some embodiments, a PPM interface for a computing platform may be provided with functionality to facilitate, to an OS through the PPM interface, firmware performance data.

Abstract: In some embodiments, a PPM interface may be provided with functionality to facilitate to an OS memory power state management for one or more memory nodes, regardless of a particular platform hardware configuration, as long as the platform hardware is in conformance with the PPM interface.

Abstract: In some embodiments, a PPM interface for a computing platform may be provided with functionality to facilitate, to an OS through the PPM interface, firmware performance data.

Abstract: Particular embodiments described herein provide for an apparatus that includes a means for determining a power state for a device connected to a system, a means for determining that the device should change power states, and means for sending a signal to the device to put the device in a D3-cold state while the system is a GO/SO state. In an embodiment, the device is a peripheral component interconnect (PCI) device. Also, the particular example implementation can include means for sending a PCIRST# signal from the device to a controller to cause the device to exit the D3-cold state, wherein the PCIRST# signal is received at a pin on the controller that is different than a designated PCIRST# signal pin.

Abstract: In some embodiments, a PPM interface for a computing platform may be provided with functionality to facilitate, to an OS through the PPM interface, firmware performance data.

Abstract: In some embodiments, a PPM interface for a computing platform may be provided with functionality to facilitate, to an OS through the PPM interface, firmware performance data.

Abstract: Particular embodiments described herein can offer a method that includes receiving a signal indicating whether at least one device is in a low power mode, determining that the at least one device is in a first thermally benign state based, at least in part, on the signal, and performing a first operation associated with a reduced thermal remediation power consumption.

Abstract: Particular embodiments described herein provide for an apparatus that includes a means for determining a power state for a device connected to a system, a means for determining that the device should change power states, and means for sending a signal to the device to put the device in a D3-cold state while the system is a G0/S0 state. In an embodiment, the device is a peripheral component interconnect (PCI) device. Also, the particular example implementation can include means for sending a PCIRST# signal from the device to a controller to cause the device to exit the D3-cold state, wherein the PCIRST# signal is received at a pin on the controller that is different than a designated PCIRST# signal pin.

Abstract: Particular embodiments described herein provide for an apparatus that includes a means for determining a power state for a device connected to a system, a means for determining that the device should change power states, and means for sending a signal to the device to put the device in a D3-cold state while the system is a GO/SO state. In an embodiment, the device is a peripheral component interconnect (PCI) device. Also, the particular example implementation can include means for sending a WAKE# signal from a controller to the device to cause the device to exit the D3-cold state, wherein the WAKE# signal was sent from a designated WAKE# signal pin on the controller. In some embodiments, the WAKE# signal is not sent to other devices in the system.

Abstract: Particular embodiments described herein can offer a method that includes receiving a signal indicating whether at least one device is in a low power mode, determining that the at least one device is in a first thermally benign state based, at least in part, on the signal, and performing a first operation associated with a reduced thermal remediation power consumption.

Abstract: Particular embodiments described herein can offer an apparatus that includes logic, the logic at least partially comprising hardware logic to receive a first notification indicating that at least one first user interaction device has become precluded; and cause, by a processor and absent intermediate operation of operating system software, disabling of at least one second user interaction device based, at least in part, on the first notification.

Abstract: One particular example implementation of an apparatus that includes logic, the logic at least partially comprising hardware logic to: trigger a particular interrupt based, at least in part, on input/output (I/O) activity when a predetermined state is activated on a platform; generate a system control interrupt based, at least in part, on a source associated with the particular interrupt; and route the system control interrupt to a custom system control interrupt handler.