On Tue, Feb 08, 2011 at 11:01:25AM +0000, Dave Martin wrote: > For v6, wfi is architected as a defined MCR instruction, so > use that definition. > > Doing a no-op instead of wfi() is probably bad, so for older > processors than v6, wfi() is not defined. If needed, some CPU- > specific wfi() will have to be defined elsewhere. This is something we kind-of already handle in a different way - see the individual processor idle function in arch/arm/mm/proc*.S. There's various errata work-arounds older CPUs need for wfi (or rather its mcr equivalent) so maybe wfi() should just be an alias for a call to that function. Or maybe we shouldn't have a wfi() macro at all. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
