Re: [RFC PATCH 3/5] RISC-V: Add cpu_operatios structure
From: Christoph Hellwig
Date: Tue Aug 21 2018 - 03:48:32 EST
On Thu, Aug 16, 2018 at 11:51:03AM +0530, Anup Patel wrote:
> Having thought about this more, I think cpu_ops should be an pointer array
> of NR_CPUS size. This means its not necessary to have have same ops for
> all CPUs. The ARM64 implementation of CPU operations also allows separate
> CPU operations for each CPU.
> For example, let's us assume that we have an SOC where we 2 cores
> per-cluster and N clusters. All CPUs of cluster0 comes up at the same time
> whereas cluster1 onwards we have to bring-up CPUs using special HW
All this (including the patch itself) seems a little hypothetical.
I'd rather only add all this infrastructure once it actually is needed.