From: Yinghai Lu <ying...@kernel.org> Date: Fri, 27 Mar 2015 14:01:54 -0700
> On Thu, Mar 26, 2015 at 4:27 PM, David Ahern <david.ah...@oracle.com> wrote: >> On 3/26/15 2:43 PM, Yinghai Lu wrote: >>> >>> Can you send out boot log with "debug ignore_loglevel"? >> >> >> attached > > So the kernel config is sparc32 or sparc64 ? > > pci 0000:06:00.0: reg 0x184: can't handle BAR above 4GB (bus address > 0x110204000) > > > only could happen when dma_addr_t is 32bit. All DMA occurs behind an IOMMU and these IOMMUs only support 32-bit addressing, therefore dma_addr_t is 32-bit on sparc64. If you want to represent PCI address in some way, you absolutely cannot use dma_addr_t as your data type. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
