Invention Grant
- Patent Title: Back-off mechanism for a peripheral page request log
- Patent Title (中): 外设页面请求日志的备份机制
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Application No.: US14045701Application Date: 2013-10-03
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Publication No.: US09239804B2Publication Date: 2016-01-19
- Inventor: Andrew Kegel , Jimshed Mirza , Paul Blinzer , Philip Ng
- Applicant: Advanced Micro Devices, Inc. , ATI Technologies ULC
- Applicant Address: US CA Sunnyvale
- Assignee: ADVANCED MICRO DEVICES, INC.
- Current Assignee: ADVANCED MICRO DEVICES, INC.
- Current Assignee Address: US CA Sunnyvale
- Agency: Park, Vaughan, Fleming & Dowler LLP
- Main IPC: G06F11/07
- IPC: G06F11/07 ; G06F13/00 ; G06F12/10 ; G06F12/00 ; G06F13/38
Abstract:
A system and method of managing requests from peripherals in a computer system are provided. In the system and method, an input/output memory management unit (IOMMU) receives a peripheral page request (PPR) from a peripheral. In response to a determination that a criterion regarding an available capacity of a PPR log is satisfied, a completion message is sent to the peripheral indicating that the PPR is complete and the PPR is discarded without queuing the PPR in the PPR log.
Public/Granted literature
- US20150100818A1 BACK-OFF MECHANISM FOR A PERIPHERAL PAGE REQUEST LOG Public/Granted day:2015-04-09
Information query
