Hi... On Wed, Jun 27, 2012 at 12:02 AM, Jacky lin <[email protected]> wrote: > I check the code, and find the LR is point to smp_cross_call() > > void arch_send_call_function_single_ipi(int cpu) > { > smp_cross_call(cpumask_of(cpu), IPI_CALL_FUNC_SINGLE); > }
from what I know, IPI (Inter Processor Call) is usually used to do things like cache snooping. It's like inter processor cache invalidation... -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com _______________________________________________ Kernelnewbies mailing list [email protected] http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
