Wake-up control method and device, vehicle and storage medium

The main processor controls the wake-up and sleep state of the slave processor in the mobile data center MDC platform, and solves the problem that the slave processor does not support IPC interrupt wake-up, achieving the effect of reducing power consumption.

CN119718436AActive Publication Date: 2025-03-28BEIJING XIAOMI MOBILE SOFTWARE CO LTD
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Patent Information

Application Number
CN202311281541.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2023-09-28
Publication Date
2025-03-28
Estimated Expiration
2043-09-28

AI Technical Summary

Technical Problem

In the mobile data center MDC platform of intelligent driving, the slave processor does not support IPC interrupt wake-up, which makes it a technical challenge to effectively control the wake-up of the slave processor.

Method used

When the data to be interacted with the user is detected by the main processor, the sleep flag bit of the operating system on the slave processor is read. If it is in a sleep state, a power-up request is sent to the virtual machine monitor, and a de-reset command is sent after the power-up is completed to wake up the slave processor's operating system.

Benefits of technology

It realizes the wake-up of the processor's operating system when it needs to interact with the user and put it to sleep when it is not needed, reducing power consumption.

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Abstract

The invention provides a wake-up control method and device, a vehicle and a storage medium, and the method comprises the steps: obtaining a value of a sleep flag bit of an operating system on a slave processor from a shared memory in response to detection of data to be interacted with a user, and determining that the operating system is in a sleep state according to the value of the sleep flag bit, a power-on request is sent to the virtual machine monitor, the power-on request is used for controlling the slave processor to be powered on by the virtual machine monitor, and under the condition that power-on is completed, a first reset-removing instruction is sent to the slave processor, and the first reset-removing instruction is used for controlling the slave processor to be powered on by the slave processor according to the reset-removing instruction. The method comprises the following steps: controlling an operation system on a slave processor to enter a running state from a sleep state, controlling the slave processor in the sleep state to be powered on through a master processor in a scene needing to interact with a user, and awakening the operation system on the slave processor to enter the running state, so that the operation system of the slave processor is awakened only when the operation system needs to be used; and the power consumption is reduced.
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