IMPLEMENTING DRAM ROW HAMMER AVOIDANCE
First Claim
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.
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Abstract
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.
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Citations
10 Claims
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1. A method for implementing row hammer avoidance in a dynamic random access memory (DRAM) in a computer system comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10-20. -20. (canceled)
Specification