On 11/29/2017 12:21 AM, Alexey Brodkin wrote:
As of today we assumed that "machine_desc->init_per_cpu" calls are only usable on SMP systems when we want to run some piece of code on early boot for each and every core, I guess assumption was we have "machine_desc->init_early" for single-core cases where the one and only master core can do all the things.But it turned out for platforms which might be both UP and SMP it might be benificial to use "init_per_cpu" for both UP and SMP cases with which we achieve 2 things simultaneously: 1) Exactly the same one code will be used for UP&SMP for things required to be done on each an every core regardless if it's a master and the only core in UP system or any other slave core in SMP setup. 1) There will be no "ifdef CONFIG_SMP" around "init_per_cpu".
Seems fine to me. However this needs to go with the actual platform change which needs it.
-Vineet
