| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and system for avoiding a deadlock by marking CPU traffic as special. SOLUTION: Deadlocks are avoided by marking read requests issued by a parallel processor to system memory as "special". Read completions associated with read requests marked as special are routed on a virtual channel 1 of the PCIe bus. Data returning on the virtual channel 1 cannot become stalled by write requests in a virtual channel 0, thus avoiding a potential deadlock. COPYRIGHT: (C)2010,JPO&INPIT |
