Hans Petter Selasky wrote this message on Sun, May 27, 2007 at 22:35 +0200:
I've got some reports back that some USB host controllers do not support
transferring memory from a location higher than 2GB.
What should we do about this?
Should we limit all USB DMA allocations to the lower 2GB of the memory?
No, a quirk table should be setup and pass the restriction to bus_dma
at tag initalization time when a broken controller is detected..
John-Mark Gurney Voice: +1 415 225 5579
"All that I will do, has been done, All that I have, has not."