Hi...
On Wed, Jun 27, 2012 at 12:02 AM, Jacky lin <h.t.jacky@xxxxxxxxx> 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
Kernelnewbies@xxxxxxxxxxxxxxxxx
http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
