发明名称 |
Partitioning prefetch registers to prevent at least in part inconsistent prefetch information from being stored in a prefetch register |
摘要 |
A method and multithreaded processor for dynamically reallocating prefetch registers upon the processor switching modes of operation. An execution unit may be coupled to a prefetch engine where the execution unit may be configured to receive prefetch instructions regarding prefetching data. The prefetch engine may comprise a plurality of prefetch registers. The execution unit may further be configured to load the plurality of prefetch registers with information regarding prefetching data obtained from the prefetch instructions. In a single thread mode of operation, the plurality of prefetch registers are allocated to be accessed by either a first or a second thread. In a multithread mode of operation, the plurality of prefetch registers are allocated to be accessed among the first and second threads.
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申请公布号 |
US2004215892(A1) |
申请公布日期 |
2004.10.28 |
申请号 |
US20030425424 |
申请日期 |
2003.04.28 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
FLUHR ERIC J.;MAY CATHY;SINHAROY BALARAM |
分类号 |
G06F9/30;G06F9/38;G06F12/08;(IPC1-7):G06F12/00 |
主分类号 |
G06F9/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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