Invention Grant
- Patent Title: Adaptive lower power state entry and exit
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Application No.: US16886694Application Date: 2020-05-28
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Publication No.: US12135597B2Publication Date: 2024-11-05
- Inventor: Ang Li
- Applicant: Intel Corporation
- Applicant Address: US CA Santa Clara
- Assignee: Intel Corporation
- Current Assignee: Intel Corporation
- Current Assignee Address: US CA Santa Clara
- Agency: Alliance IP, LLC
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G06F1/14 ; G06F1/3206 ; G06F1/324 ; G06F9/46 ; G06F13/38

Abstract:
Systems and devices can include power management circuitry to manage the entry and exit of active state power management (APSM) link states, such as the transition between an active (L0) state and a low power state (e.g., L1). The power management circuitry can cause a downstream component to initiate an ASPM link state change negotiation based on an ASPM link state change condition being met. An ASPM event analysis logic can identify and track events that occur proximate in time to the ASPM link state change and can correlate the occurrences of the event with ASPM link state changes. An ASPM policy tuning logic can use a correlation between the occurrences of the event and ASPM link state changes to adjust or tune the ASPM link state change condition.
Public/Granted literature
- US20200310517A1 ADAPTIVE LOWER POWER STATE ENTRY AND EXIT Public/Granted day:2020-10-01
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