Hello all, memory allocated with pci_alloc_consistent() returns the (kernel) virtual address and the bus address (which may be different from the physical memory address). What is the correct implementation of the driver mmap (file operation method) for such memory? I assume remap_pfn_range() must be used, but how can I find out the correct arguments, such as the physical address? Some plainly use the bus address as the physical address to remap_pfn_range, but that seems plain wrong to be in general. This questions seems a FAQ, but I found different (and contradictionary) answers on Google. Thanks, -- Leon -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
