On Mon, 2015-12-07 at 15:12 +0100, Christian Zigotzky wrote:

Hi all,

I have some good news for you. I was able to fix the issue with the
P.A. 
Semi Ethernet. It was a problem with the new DMA handling. The patch
' 
[RFC/PATCH,v2] powerpc/iommu: Support "hybrid" iommu/direct DMA ops
for 
coherent_mask < dma_mask (https://patchwork.ozlabs.org/patch/472535/)
' 
is the problem.

Send me your .config and the full dmesg output. I can't seem to
reproduce here.

Cheers,
Ben.

I had patched the following files before I compiled a kernel.

arch/powerpc/Kconfig
arch/powerpc/include/asm/device.h
arch/powerpc/include/asm/dma-mapping.h
arch/powerpc/include/asm/iommu.h
arch/powerpc/kernel/dma-iommu.c
arch/powerpc/kernel/dma-swiotlb.c
arch/powerpc/kernel/dma.c
arch/powerpc/platforms/powernv/pci-ioda.c
arch/powerpc/platforms/pseries/iommu.c
arch/powerpc/sysdev/dart_iommu.c
include/asm-generic/dma-mapping-common.h

The P.A. Semi Ethernet works again with the patched kernel.

I am happy. :-)

Please fix the issue in the kernel source code.

Thanks in advance,

Christian


_______________________________________________
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev