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    TRUSTED PROCESSOR FOR SAVING GPU CONTEXT TO SYSTEM MEMORY
    1.
    发明申请
    TRUSTED PROCESSOR FOR SAVING GPU CONTEXT TO SYSTEM MEMORY 有权

    公开(公告)号：US20220414222A1

    公开(公告)日：2022-12-29

    申请号：US17356776

    申请日：2021-06-24

    Applicant: ADVANCED MICRO DEVICES, INC. ,  ATI TECHNOLOGIES ULC

    Inventor： Gia Phan ,  Ashish Jain ,  Randall Brown

    IPC: G06F21/57 ,  G06F21/60 ,  G06F9/46 ,  G06F9/50 ,  G06T1/20

    Abstract: A trusted processor saves and restores context and data stored at a frame buffer of a GPU concurrent with initialization of a CPU of the processing system. In response to detecting that the GPU is powering down, the trusted processor accesses the context of the GPU and data stored at a frame buffer of the GPU via a high-speed bus. The trusted processor stores the context and data at a system memory, which maintains the context and data while the GPU is powered down. In response to detecting that the GPU is powering up again, the trusted processor restores the context and data to the GPU, which can be performed concurrently with initialization of the CPU.

    LATENCY REDUCTION FOR TRANSITIONS BETWEEN ACTIVE STATE AND SLEEP STATE OF AN INTEGRATED CIRCUIT
    3.
    发明公开
    LATENCY REDUCTION FOR TRANSITIONS BETWEEN ACTIVE STATE AND SLEEP STATE OF AN INTEGRATED CIRCUIT 审中-公开

    公开(公告)号：US20240319781A1

    公开(公告)日：2024-09-26

    申请号：US18189993

    申请日：2023-03-24

    Applicant: Advanced Micro Devices, Inc. ,  ATI Technologies ULC

    Inventor： Gia Tung Phan ,  Randall Brown ,  Ashish Jain

    IPC: G06F1/3234 ,  G06F1/3228 ,  G06F1/3287

    CPC classification number: G06F1/3275 ,  G06F1/3228 ,  G06F1/3287

    Abstract: An apparatus and method for efficient power management of multiple integrated circuits. In various implementations, a computing system includes an integrated circuit with a security processor. The security processor determines the integrated circuit transitions to an active state from a sleep state that is not intended to maintain configuration information to return to the active state without restarting an operating system. In the sleep state, multiple components of the integrated circuit have a power supply reference level turned off, which provides low power consumption for the integrated circuit. The security processor performs the bootup operation using information stored in persistent on-chip memory. By not using information stored in off-chip memory, the security processor reduces the latency of the transition. The persistent on-chip memory utilizes synchronous random-access memory that receives a standby power supply reference level that continually supplies a voltage magnitude by not being turned off.

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