Messages in this thread | | | Date | Wed, 01 Dec 1999 09:21:38 -0500 | From | Ralph Blach <> | Subject | DMA and Cache coherency on machines without hardware enforced cache coherency. |
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I have to write a device driver for a machine which does not have hardware enforced cache coherency between bus master devices and the CPU caches. Is there a way to allocate certain buffers in uncached memory. I know this would lower performance, but it would also solve certain problems which seem to be cropping up.
Please reply to rcblach@raleigh.ibm.com
Thanks Chip
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