Re: PPC64 & DMA zone
flat view
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: 2012-08-17 21:39:06
On Sat, 2012-08-18 at 00:01 +0300, Aaro Koskinen wrote:
b43-pci-bridge 0001:01:01.0: Warning: IOMMU window too big for device mask b43-pci-bridge 0001:01:01.0: mask: 0x3fffffff, table end: 0x80000000 b43-phy0 ERROR: The machine/kernel does not support the required 30-bit DMA mask
Hrm, odd, I though we had the iommu allocator sorted to handle that case a while back. Maybe that got broken. I can try to have a look but poke me in a week or so if you don't hear from me. Unless somebody else beat me to it which would be much welcome :-) Cheers, Ben.