Advanced Micro Devices, Inc.
Configurable skewed associativity in a translation lookaside buffer

Abstract:

Methods, devices, and systems for determining an address in a physical memory which corresponds to a virtual address using a skewed-associative translation lookaside buffer (TLB) are described. A virtual address and a configuration indication are received using receiver circuitry. A physical address corresponding to the virtual address is output if a TLB hit occurs. A first subset of a plurality of ways of the TLB is configured to hold a first page size. The first subset includes a number of the ways based on the configuration indication. A physical address corresponding to the virtual address is retrieved from a page table if a TLB miss occurs, and at least a portion of the physical address is installed in a least recently used way of a subset of a plurality of ways the TLB, determined according to a replacement policy based on the configuration indication.