发明名称 |
Microprocessor, method and computer program product for direct page prefetch in millicode capable computer system |
摘要 |
A microprocessor equipped to provide hardware initiated prefetching, includes at least one architecture for performing: issuance of a prefetch instruction; writing of a prefetch address into a prefetch fetch address register (PFAR); attempting a prefetch according to the address; detecting one of a cache miss and a cache hit; and if there is a cache miss, then sending a miss request to a next cache level and attempting cache access in a non-busy cycle; and if there is a cache hit, then incrementing the address in the PFAR and completing the prefetch. A method and a computer program product are provided.
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申请公布号 |
US8549255(B2) |
申请公布日期 |
2013.10.01 |
申请号 |
US20080032041 |
申请日期 |
2008.02.15 |
申请人 |
SCHROTER DAVID A.;FARRELL MARK S.;NAVARRO JENNIFER;SHUM CHUNG-LUNG KEVIN;WEBB CHARLES F.;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SCHROTER DAVID A.;FARRELL MARK S.;NAVARRO JENNIFER;SHUM CHUNG-LUNG KEVIN;WEBB CHARLES F. |
分类号 |
G06F12/00 |
主分类号 |
G06F12/00 |
代理机构 |
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地址 |
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