Invention Grant
US07657667B2 Method to provide cache management commands for a DMA controller
失效
为DMA控制器提供高速缓存管理命令的方法
- Patent Title: Method to provide cache management commands for a DMA controller
- Patent Title (中): 为DMA控制器提供高速缓存管理命令的方法
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Application No.: US10809553Application Date: 2004-03-25
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Publication No.: US07657667B2Publication Date: 2010-02-02
- Inventor: Charles Ray Johns , James Allan Kahle , Peichun Peter Liu , Thuong Quang Truong
- Applicant: Charles Ray Johns , James Allan Kahle , Peichun Peter Liu , Thuong Quang Truong
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Stephen R. Tkacs; Stephen J. Walder, Jr.; Matthew B. Talpis
- Main IPC: G06F13/28
- IPC: G06F13/28
Abstract:
The present invention provides a method and a system for providing cache management commands in a system supporting a DMA mechanism and caches. A DMA mechanism is set up by a processor. Software running on the processor generates cache management commands. The DMA mechanism carries out the commands, thereby enabling the software program management of the caches. The commands include commands for writing data to the cache, loading data from the cache, and for marking data in the cache as no longer needed. The cache can be a system cache or a DMA cache.
Public/Granted literature
- US20050216610A1 Method to provide cache management commands for a DMA controller Public/Granted day:2005-09-29
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