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US08868948B2 Method and system for coordinating link power management with platform power management 有权
协调电源管理与平台电源管理的方法和系统

Method and system for coordinating link power management with platform power management
Abstract:
A method, apparatus, and system for coordinated link power management. Some embodiments of a method include receiving an exit latency for each of a group of link states for a link, with a device being coupled to an interconnect via the first link. A latency tolerance value is determined and communicated, and a platform latency is received. The method further provides for determining a link budget for the device, the link budget indicating an amount of time available for an exit from a link state for the device; and selecting one of the link states based at least in part on the link budget.
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