AW: PowerPC PCI DMA issues (prefetch/coherency?)

Benjamin Herrenschmidt benh at kernel.crashing.org
Fri Sep 11 15:17:50 EST 2009


On Fri, 2009-09-11 at 07:12 +0200, Stefan Roese wrote:
> 
> It's already there. See commit:
> 
> 5ce4b59653b2c2053cd9a011918ac1e4747f24cc
> 
> powerpc/4xx: Workaround for PPC440EPx/GRx PCI_28 Errata
> 
Ok, that's another way to do it. Will catch nasty drivers who
try to write directly rather than clear pci_cache_line_size I suppose...

Cheers,
Ben.



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