Re: PCI questions

[sakamoto%splhack.org@localhost (Kazuki Sakamoto)]

briggs%wasabisystems.com@localhost wrote:

 > Ah...  OK...  So the PHYS_TO_PCI_MEM(x) is a translation that
 > allows a PCI bus master to access system memory?
 > That is, if I am a PCI bus master, and I want to access system
 > memory address 0x00001234, then I want to use 0x80001234, so I
 > would use PHYS_TO_PCI_MEM(0x00001234).  Correct?

Yes. It should be used with DMA access from PCI master.

sakamoto