Messages in this thread | | | Subject | Re: use generic DMA mapping code in powerpc V4 | From | Christian Zigotzky <> | Date | Mon, 21 Jan 2019 15:38:38 +0100 |
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Hello Christoph,
Thanks for your reply. I successfully compiled a kernel (uImage) for the X5000 from your Git 'powerpc-dma.6-debug' (both patches) today.
It detects the SATA hard disk drive and boots without any problems. I will test the first patch in next days.
Thanks for your help,
Christian
On 19 January 2019 at 3:04PM, Christoph Hellwig wrote: > On Sat, Jan 19, 2019 at 02:02:22PM +0100, Christoph Hellwig wrote: >> Interesting. This suggest it is related to the use of ZONE_DMA by >> the FSL SOCs that your board uses. Let me investigate this a bit more. > As a hack to check that theory I've pushed a new commit to the > powerpc-dma.6-debug branch to use old powerpc GFP_DMA selection > with the new dma direct code: > > http://git.infradead.org/users/hch/misc.git/commitdiff/5c532d07c2f3c3972104de505d06b8d85f403f06 > > And another one that drops the addressability checks that powerpc > never had: > > http://git.infradead.org/users/hch/misc.git/commitdiff/18e7629b38465ca98f8e7eed639123a13ac3b669 > > Can you first test with both patches, and then just with the first > in case that worked? > >
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