| 发明名称 |
METHOD AND APPARATUS FOR CACHE LINE WRITE BACK OPERATION |
| 摘要 |
An apparatus and method are described for performing a cache line write back operation. For example, one embodiment of a method comprises: initiating a cache line write back operation directed to a particular linear address; determining if a dirty cache line identified by the linear address exists at any cache of a cache hierarchy comprised of a plurality of cache levels; writing back the dirty cache line to memory if the dirty cache line exists in one of the caches; and responsively maintaining or placing the dirty cache line in an exclusive state in at least a first cache of the hierarchy. |
| 申请公布号 |
US2015178202(A1) |
申请公布日期 |
2015.06.25 |
| 申请号 |
US201314137432 |
申请日期 |
2013.12.20 |
| 申请人 |
Sankaran Rajesh M.;Schaper Neil M.;Nuzman Joseph;Novakovsky Larisa;Liu Yen-Cheng;Neiger Gilbert;Ramanujan Raj K. |
发明人 |
Sankaran Rajesh M.;Schaper Neil M.;Nuzman Joseph;Novakovsky Larisa;Liu Yen-Cheng;Neiger Gilbert;Ramanujan Raj K. |
| 分类号 |
G06F12/08 |
主分类号 |
G06F12/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method comprising:
initiating a cache line write back operation directed to a particular linear address; determining if a dirty cache line identified by the linear address exists at any cache of a cache hierarchy comprised of a plurality of cache levels; writing back the dirty cache line to memory if the dirty cache line exists in one of the caches; and responsively maintaining or placing the dirty cache line in an exclusive state in at least a first cache of the hierarchy. |
| 地址 |
Portland OR US |
