On Wednesday, March 06, 2013 4:34 PM, H Hartley Sweeten wrote: > > Question, when doing an ioremap() of a PCI resource which is more correct? > > iobase = pci_resource_start(pcidev, bar); > len = pci_resource_len(pcidev, bar); > mmio = ioremap(iobase, len); > > or > > mmio = pci_ioremap_bar(pcidev, bar); > > pci_ioremap_bar() does some extra sanity checking to make sure the bar > is actually a memory resource and then does an ioremap_nocache(). > > If the ioremap() is in order to talk to the registers on the PCI device > wouldn't > the pci_ioremap_bar() be more correct?
Greg / Ian / Dan, Do you have any ideas/opinions on the question above? Thanks, Hartley _______________________________________________ devel mailing list [email protected] http://driverdev.linuxdriverproject.org/mailman/listinfo/devel
