The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 20, 2024
Filed:
Aug. 12, 2022
Huawei Technologies Co., Ltd., Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
The disclosure relates to technology for up-evicting cache lines. An apparatus comprises a hierarchy of caches comprising a first cache having a first cache controller and a second cache having a second cache controller. The first cache controller is configured to store cache lines evicted from a first processor group to the first cache and to down-evict cache lines from the first cache to the second cache. The second cache controller is configured to store cache lines evicted from a second processor group into the second cache, to up-evict a first cache line from the second cache to the first cache in response to an eviction of a second cache line from the second processor group to the second cache, and to provide the up-evicted first cache line from the first cache to the second processor group in response to a request from the second processor group.