摘要:
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.
摘要:
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.
摘要:
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.
摘要:
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.