On Thu, Jan 25, 2007 at 03:52:07PM -0600, Ruggles, Timothy wrote: > All, > Is there an easy way to determine how Linux has remapped a > 32 bit physical PCI address on a 64 bit machine(40 bit phys)? > > Backgrd: Driver running on IA64 machine with PCI H/W that has some > 32 bit addressing. IA64 uses I/OTLB to remap 32 to 44 bit address. > > Driver ported to AMD64 (Debian etch running x86_64). Driver installs > and runs. I just need to verify the Machine I am on is really doing > address translation in H/W and is not using bounce buffers, which > would > involve an extra copy. BTW - I use pci_map_single and unmap single to > set > up the dma. Which driver are you referring to? And I think it's all up to the hardware that you are using, not the driver at all. thanks, greg k-h -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
