Patent ID: 11860794
Assignee: VENTANA MICRO SYSTEMS INC.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 18:
19. The method of claim 18, further comprising:
by the first-level data cache:
receiving from the second-level cache, in response to the cache line fill request, a request that specifies the set index obtained from the physical memory line address and an incremented version of the GENID held in the entry of each way of the selected set; and
returning to the second-level cache an indication associated with each way of the selected set, wherein each indication indicates whether a PAP formed by the associated way and the incremented version of the GENID of the associated way and the set index specified in the request is resident in the first-level data cache; and

using, by the second-level cache, the indications to pick a way of the selected set for replacement to reduce a likelihood of forming a GPAP that is still available for comparisons as a proxy of the physical memory line address.