Selective cache fills in response to write misses

摘要

A cache memory receives a request to perform a write operation. The request specifies an address. A first determination is made that the cache memory does not include a cache line corresponding to the address. A second determination is made that the address is between a previous value of a stack pointer and a current value of the stack pointer. A third determination is made that a write history indicator is set to a specified value. The write operation is performed in the cache memory without waiting for a cache fill corresponding to the address to be performed, in response to the first, second, and third determinations.

主权项

1. A method of managing cache memory, comprising:
in a cache memory, receiving a first request to perform a first write operation, the first request specifying a first address; making a first determination that the cache memory does not include a cache line corresponding to the first address; making a second determination that the first address is between a previous value of a stack pointer and a current value of the stack pointer; making a third determination that a write history indicator is set to a specified value; and performing the first write operation in the cache memory without waiting for a cache fill corresponding to the first address to be performed, in response to the first, second, and third determinations.