Apple inc. (20240289282). Cache Control to Preserve Register Data simplified abstract
Contents
Cache Control to Preserve Register Data
Organization Name
Inventor(s)
Jonathan M. Redshaw of St. Albans (GB)
Winnie W. Yeung of San Jose CA (US)
Benjiman L. Goodman of Austin TX (US)
Zelin Zhang of San Jose CA (US)
Yoong Chert Foo of London (GB)
Cache Control to Preserve Register Data - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240289282 titled 'Cache Control to Preserve Register Data
Simplified Explanation: The patent application discusses techniques for eviction control in cache lines storing register data, ensuring the preservation of register operand data in cache circuits.
- Memory hierarchy circuitry provides memory backing for register operand data in cache circuits.
- Lock circuitry controls lock indicators for registers of a thread, preserving register data in cache circuits to prevent eviction based on asserted lock indicators.
- The lock circuitry clears lock indicators in response to a reset event, retaining relevant register information in the cache efficiently.
Key Features and Innovation:
- Memory hierarchy circuitry supports register operand data in cache circuits.
- Lock circuitry controls lock indicators for registers, preserving register data in cache to prevent eviction.
- Efficient retention of relevant register information in cache with limited control circuit area.
Potential Applications:
- Computer architecture design
- Processor development
- Cache memory management systems
Problems Solved:
- Efficient preservation of register data in cache circuits
- Prevention of eviction of cache lines storing important register information
Benefits:
- Improved performance in processor operations
- Enhanced cache memory management
- Optimal utilization of cache circuits
Commercial Applications: Optimized Cache Memory Management System for Enhanced Processor Performance
Prior Art: Prior art related to cache memory management systems and eviction control techniques in processor architectures.
Frequently Updated Research: Ongoing research on cache memory optimization and efficient register data preservation techniques.
Questions about Eviction Control for Cache Lines: 1. How does the lock circuitry prevent the eviction of cache lines in the cache circuits? 2. What are the potential commercial applications of this technology in processor development?
Original Abstract Submitted
techniques are disclosed relating to eviction control for cache lines that store register data. in some embodiments, memory hierarchy circuitry is configured to provide memory backing for register operand data in one or more cache circuits. lock circuitry may control a first set of lock indicators for a set of registers for a first thread, including to assert one or more lock indicators for registers that are indicated, by decode circuitry, as being utilized by decoded instructions of the first thread. the lock circuitry may preserve register operand data in the one or more cache circuits, including to prevent eviction of a given cache line from a cache circuit based on an asserted lock indicator. the lock circuitry may clear the first set of lock indicators in response to a reset event. disclosed techniques may advantageously retain relevant register information in the cache with limited control circuit area.
