发明授权
- 专利标题: Structure for performing cacheline polling utilizing a store and reserve instruction
- 专利标题(中): 使用存储和预留指令进行缓存线轮询的结构
-
申请号: US12132483申请日: 2008-06-03
-
公开(公告)号: US08219763B2公开(公告)日: 2012-07-10
- 发明人: Charles R. Johns
- 申请人: Charles R. Johns
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Yudell Isidore Ng Russell PLLC
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
A design structure for performing cacheline polling utilizing a store and reserve instruction are disclosed. In accordance with one embodiment of the present invention, a first process initially requests an action to be performed by a second process. A reservation is set at a cacheable memory location via a store operation. The first process reads the cacheable memory location via a load operation to determine whether or not the requested action has been completed by the second process. The load operation of the first process is stalled until the reservation on the cacheable memory location is lost. After the requested action has been completed, the reservation in the cacheable memory location is reset by the second process.
公开/授权文献
信息查询