IMPLEMENTING DRAM ROW HAMMER AVOIDANCE

摘要

A method and apparatus for implementing row hammer avoidance in a dynamic random access memory (DRAM) in a computer system. Hammer detection logic identifies a hit count of repeated activations at a specific row in the DRAM. Monitor and control logic receiving an output of the hammer detection logic compares the identified hit count with a programmable threshold value. Responsive to a specific count as determined by the programmable threshold value, the monitor and control logic captures the address where a selected row hammer avoidance action is provided.

主权项

1. A method for implementing row hammer avoidance in a dynamic random access memory (DRAM) in a computer system comprising:
providing hammer detection logic identifying a hit count of repeated activations at a specific row in the DRAM; providing monitor and control logic receiving an output of the hammer detection logic for comparing the identified hit count value with a programmable threshold value, capturing an address responsive to the compared values and providing a selected row hammer avoidance action for the captured address.