Linux kernel is not real time OS, while some applications is time sensitive tasks running in Linux environment, this request to extend the real time feature in common Linux kernel, and RT_PREEMPT is one of the methods to enable Linux kernel with real time processing requirement. But RT_PREEMPT is not accepted by kernel, so it needs extra effort to porting this patch-set to i.MX8M family products.
This patch-set is based on L4.14.78 for i.MX8M products, customer need to apply patches based on this release.
