I am running linux 2.4.2 on Apple G4 machine. I think the 'PCI bus addresses' and 'physical addresses' are same on this architecture. I expected the two be different but according to asm/io.h 'virt_to_bus(addr) = virt_to_phys(addr) + PCI_DRAM_OFFSET'. I printed the value of 'PCI_DRAM_OFFSET' and that come out to be zero. Is this correct? If I somehow get the physical address of a user space buffer in a module and take this as a PCI bus address, will I be able to do DMA properly? thanks, Daljeet. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
