Le lundi 29 mai 2006 à 16:14 +0200, Bart Jonkers a écrit : > > The Ipipe patch for ARM only support the integrator platform for > > now. There exist patch for another ARM platform, but it exist only as > > a separated patch. Looking at the patch contents it seems that the only > > patched files specific to the integrator architecture are : > > arch/arm/mach-integrator/core.c > > arch/arm/mach-integrator/integrator_cp.c > > include/asm-arm/arch-integrator/entry-macro.S > > include/asm-arm/arch-integrator/platform.h > > include/asm-arm/arch-integrator/timex.h > > > > Looking rapidly at these files, it seems that the machine specific > > functions and variables are reduced to: > > > > int __ipipe_mach_timerint; > > int __ipipe_mach_timerstolen; > > unsigned int __ipipe_mach_ticks_per_jiffy; > > > > void __ipipe_mach_acktimer(void); > > unsigned long long __ipipe_mach_get_tsc(void); > > void __ipipe_mach_set_dec(unsigned long reload); > > unsigned long __ipipe_mach_get_dec(void); > > > > If you provide the same variables and functions for the PXA platform, I > > think there is no modification to be done at Xenomai level.
Gilles is 100% correct. All the platform specific code has to do is provide the low level timer manipulation functions. > I found this out already. But it would be a easier to implement this > functions if I know what they have to do. So could somebody give an > explanation of this variables and functions? Well, __ipipe_mach_acktimer acks the timer, __ipipe_mach_get_tsc returns the TSC of the platform, __ipipe_mach_set_dec sets the decrementer etc. Should I go on ? If you have specific questions feel free to ask. But I suggest you read and try to understand the code first. Stelian. -- Stelian Pop <[EMAIL PROTECTED]> _______________________________________________ Xenomai-core mailing list Xenomai-core@gna.org https://mail.gna.org/listinfo/xenomai-core
