BUS DMA sync

M. Warner Losh imp at bsdimp.com
Thu Sep 25 18:47:17 PDT 2003


In message: <200309250014.53816.vjardin at free.fr>
            Vincent Jardin <vjardin at free.fr> writes:
: What's about PREREAD ? What kind of CPU synchronization is required prior a 
: DMA read ? There is no cache during a device to host memory process, isn't it 
: ?

There is on MIPS.

Warner


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