公开(公告)号：US20120066455A1

公开(公告)日：2012-03-15

申请号：US12878513

申请日：2010-09-09

申请人： Swamy Punyamurtula ,  Bharath Narashima Swamy

发明人： Swamy Punyamurtula ,  Bharath Narashima Swamy

IPC分类号： G06F12/08 ,  G06F12/00

CPC分类号： G06F12/0862 ,  G06F2212/6026 ,  Y02D10/13

摘要： A hybrid prefetch method and apparatus is disclosed. A processor includes a hybrid prefetch unit configured to generate addresses for accessing data from a system memory. The hybrid prefetch unit includes a first prediction unit configured to generate a first memory address according to a first prefetch algorithm and a second prediction unit configured to generate a second memory address according to a second prefetch algorithm. The hybrid prefetcher further includes an arbitration unit configured to select one of the first and second memory addresses and further configured to provide the selected one of the first and second memory addresses during a prefetch operation.

摘要翻译： 公开了一种混合预取方法和装置。 处理器包括配置成生成用于从系统存储器访问数据的地址的混合预取单元。 混合预取单元包括：第一预测单元，被配置为根据第一预取算法生成第一存储器地址;第二预测单元，被配置为根据第二预取算法生成第二存储器地址。 混合预取器还包括仲裁单元，其被配置为选择第一和第二存储器地址中的一个，并且还被配置为在预取操作期间提供所选择的第一和第二存储器地址之一。