On Jun 1, 2004, at 8:38 AM, Lalit Chandivade wrote: Is there an equivalent for smp_processor_id() on Mac OS X? I'm not familiar with this (Linux?) API. More info as to your goal would be useful. Is there any documentation available for making drivers SMP safe on Mac OS X? There's a wealth of info on on Apple's developer site. Since you are asking about driver development you should explore (in particular the IOKit and Multiprocessing links!): http://developer.apple.com/hardware/ Kernel programming in general is covered here: http://developer.apple.com/documentation/Darwin/Conceptual/ KernelProgramming/KernelProgramming.pdf Your easiest path will be to write a new, IOKit-based driver using your existing code as a reference. That path will have IOKit handle most of the tedious details of dealing with SMP. But if you _must_ port an existing driver and retain source compatibility (perhaps it already runs on Linux and Solaris, for example) then you will have a harder time. If your code already factors platform specifics out and you need to implement certain platform functions like memory allocation, DMA preparation, mutexes, interrupt handling, etc. then this is possible. I've done ports this way but it generally takes longer than using the existing code as a reference and just writing a new, clean IOKit driver. (Of course the long term effort to support a forked development would be more. That's the reason we went that way.) Info specific to porting a driver includes: http://developer.apple.com/documentation/Porting/Conceptual/ PortingDrivers/PortingDrivers.pdf Good Luck! -Mike _______________________________________________ darwin-kernel mailing list | darwin-kernel@lists.apple.com Help/Unsubscribe/Archives: http://www.lists.apple.com/mailman/listinfo/darwin-kernel Do not post admin requests to the list. They will be ignored.