公开(公告)号：US20060248281A1

公开(公告)日：2006-11-02

申请号：US11120288

申请日：2005-05-02

申请人： Hassan Al-Sukhni ,  James Holt ,  Matt Smittle ,  Michael Snyder ,  Brian Grayson

发明人： Hassan Al-Sukhni ,  James Holt ,  Matt Smittle ,  Michael Snyder ,  Brian Grayson

IPC分类号： G06F12/00

CPC分类号： G06F12/0862 ,  G06F9/30047 ,  G06F9/3455 ,  G06F9/383 ,  G06F9/3832 ,  G06F2212/6026

摘要： Generating a hashed value of the program counter in a data processing system. The hashed value can be used for prefetching in the data processing system. In some examples, the hashed value is used to identify whether a load instruction associated with the hashed value has an address that is part of a strided stream in an address stream. In some examples, the hashed value is a subset of bits of the bits of the program counter. In other examples, the hashed value may be derived in other ways from the program counter.

公开(公告)号：US20060248279A1

公开(公告)日：2006-11-02

申请号：US11120272

申请日：2005-05-02

申请人： Hassan Al-Sukhni ,  Brian Grayson ,  James Holt ,  Matt Smittle ,  Michael Snyder

发明人： Hassan Al-Sukhni ,  Brian Grayson ,  James Holt ,  Matt Smittle ,  Michael Snyder

IPC分类号： G06F13/00

CPC分类号： G06F12/0862 ,  G06F12/1009 ,  G06F2212/1028 ,  G06F2212/1044 ,  G06F2212/6026 ,  G06F2212/655 ,  Y02D10/13

摘要： Prefetching across a page boundary in a data processing system. The system determines whether a prefetch will cross a page boundary of memory, and if so, it determines whether a translation source has an entry corresponding to the virtual address of the prefetch. If the translation source has an entry corresponding the virtual address, a physical address of the virtual address is used to prefetch the information.

摘要翻译： 在数据处理系统中跨页边界预取。 系统确定预取是否将跨越存储器的页面边界，如果是，则确定翻译源是否具有与预取的虚拟地址相对应的条目。 如果翻译源具有与虚拟地址相对应的条目，则使用虚拟地址的物理地址来预取信息。