[PATCH RESEND v2 1/2] ARM: ixp4xx: Make dma_set_coherent_mask common, correct implementation

Simon Kågström simon.kagstrom at netinsight.net
Thu Mar 20 04:03:30 EDT 2014


On Tue, 18 Mar 2014 15:58:36 +0100
Arnd Bergmann <arnd at arndb.de> wrote:

> On Monday 17 March 2014, Simon Kågström wrote:
> > Non-PCI devices can use the entire 32-bit range, PCI dittos are
> > limited to the first 64MiB.
> > 
> > Also actually setup coherent_dma_mask.
> > 
> > The patch has been verified on a board with 128MiB memory, one
> > ipx4xx_eth device and a e100 PCI device.
> 
> I've applied this patch to the next/fixes-non-critical branch of arm-soc.
> Please let me know if you need to have it backported to older kernels
> as well.

Thanks. However, Krzysztof thinks that this implementation is
incorrect. It certainly fixes my ixp4xx issues, but might not be good
for everyone.

// Simon



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