Memory Interface Control Circuit for Initialization
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Solution Overview
Problem
Current memory initialization processes in computer systems are inefficient due to cache pollution, TLB pollution, high CPU usage, and increased power consumption, which are caused by the need for memory allocation and data transfer across various memory hierarchies.
Innovation Solution
A memory interface with a control circuit that determines trigger events for initializing memory locations and initializes them with pre-defined data, eliminating the need for cache, TLB, and data bus involvement, thereby reducing CPU usage and power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If memory initialization is performed using CPU, cache, and TLB, then memory locations can be initialized, but cache pollution and TLB pollution occur reducing system efficiency
Solution Approach 1:
The patent extracts the memory initialization function from the CPU and cache system, implementing it directly in the memory controller. This removes the harmful interaction with cache and TLB while maintaining initialization capability, thereby eliminating cache pollution and TLB pollution that reduce system efficiency.
Solution Approach 2:
The patent introduces a dedicated initialization circuit within the memory controller as an intermediary component. This circuit handles memory initialization independently without involving the CPU, cache, or TLB, thus preventing cache pollution and TLB pollution while ensuring reliable initialization.
2Reliability
If memory initialization is performed using CPU and data bus, then memory locations can be initialized, but CPU usage and power consumption increase
Solution Approach 1:
The patent extracts the memory initialization function from the CPU operations, implementing it locally in the memory controller. This eliminates the need for CPU involvement and data bus usage during initialization, significantly reducing power consumption while maintaining initialization reliability.
Solution Approach 2:
The memory controller performs memory initialization autonomously using its own internal initialization circuit without requiring CPU intervention or data bus resources. This self-service approach reduces overall system power consumption while ensuring reliable initialization.
3Reliability
If memory initialization involves data transfer through memory hierarchy, then memory locations can be initialized, but time is lost and resources are consumed
Solution Approach 1:
The patent extracts the initialization operation from the complex memory hierarchy data transfer path, implementing it directly at the memory controller level. This eliminates unnecessary data movement through multiple memory levels, reducing initialization time while maintaining reliability.
Data Source
AI summary
A memory interface for interfacing with a memory device includes a control circuit configured to determine whether a trigger event has occurred for initializing one or more memory locations in the memory device, and initialize the one or more memory locations in the memory device with pre-defined data upon determining the trigger event has occurred.