发明授权
US06286090B1 Mechanism for selectively imposing interference order between page-table fetches and corresponding data fetches
失效
选择性地强制页表提取之间的干扰顺序和相应数据提取的机制
- 专利标题: Mechanism for selectively imposing interference order between page-table fetches and corresponding data fetches
- 专利标题(中): 选择性地强制页表提取之间的干扰顺序和相应数据提取的机制
-
申请号: US09084621申请日: 1998-05-26
-
公开(公告)号: US06286090B1公开(公告)日: 2001-09-04
- 发明人: Simon C. Steely, Jr. , Madhumitra Sharma , Stephen R. Van Doren , Kourosh Gharachorloo
- 申请人: Simon C. Steely, Jr. , Madhumitra Sharma , Stephen R. Van Doren , Kourosh Gharachorloo
- 主分类号: G06F1200
- IPC分类号: G06F1200
摘要:
A technique selectively imposes inter-reference ordering between memory reference operations issued by a processor of a multiprocessor system to addresses within a page pertaining to a page table entry (PTE) that is affected by a translation buffer (TB) miss flow routine. The TB miss flow is used to retrieve information contained in the PTE for mapping a virtual address to a physical address and, subsequently, to allow retrieval of data at the mapped physical address. The PTE that is retrieved in response to a memory reference (read) operation is not loaded into the TB until a commit-signal associated with that read operation is returned to the processor. Once the PTE and associated commit-signal are returned, the processor loads the PTE into the TB so that it can be used for a subsequent read operation directed to the data at the physical address.
信息查询