Dynamic remapping of cache lines

摘要

A method of managing cache memory includes accessing a cache memory at a primary index that corresponds to an address specified in an access request. A determination is made that accessing the cache memory at the primary index does not result in a cache hit on a cache line with an error-free status. In response to this determination, the primary index is mapped to a secondary index and data for the address is written to a cache line at the secondary index.

主权项

1. A method of managing cache memory, comprising:
accessing a cache memory at a primary index that corresponds to an address specified in an access request; determining that the accessing does not result in a cache hit on a cache line with an error-free status; and in response to the determining:
mapping the primary index to a secondary index;selecting a selected cache line at the secondary index;fetching data for the address;setting a status indicator for the selected cache line to indicate a first error status while fetching the data, wherein the selected cache line is excluded from consideration for being dropped or evicted when the status indicator indicates the first error status; andwriting the data to the selected cache line at the secondary index.