Messages in this thread | | | From | Patrick Lerda <> | Subject | RE: Specifying properly the PCI driver model on all linux archite ctur es, (ioremap(), bus_to_virt() ...) | Date | Tue, 2 Nov 1999 17:28:48 +0100 |
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Linux is great operating system, but a small part of it, the PCI initalisation are not properly documented. This lack of documentation is not a real problem for the classic Linux that works on Intel processor. But some linux architecture like PowerPC use a more complex PCI translation. In this case the lack of information is a problem. Because some PCI drivers used some #ifdef to work on different linux architecture...
>Bret write: >It also totally destroys Alan Cox's and other peoples statements in the past >about Linux being faster than something like UDI because it doesn't have to >go through a routine just to access the bus.
Linux still go faster these translations need to be done only one time, when the driver start.
Patrick LERDA
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