On Mon, Apr 27, 2009 at 03:04:49PM -0500, Timur Tabi wrote: > David Hawkins wrote: > > > Can you give me an example of non-PCI memory that would be > > non-prefetchable that you'd like us to try? We can see if our > > host CPUs have an area like that ... we just need to know > > what device to look for first :) > > Hmmmm.... I was going to say any SOC device in the IMMR, but I don't see > anything there that would constitute a memory buffer. > > I test this change on an 8610 and DMA to a register I/O, where this bit > isn't even defined, and it made no difference. So I guess this change > is okay.
I thought the driver only used the bit if the device tree indicated it was an 83xx-era DMA controller? That said, the bits are documented as specifically for PCI, so it would be surprising if it had any effect elsewhere. -Scott _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-dev
