6 Jan
2022
6 Jan
'22
4:12 p.m.
On Thu, Jan 6, 2022 at 4:55 PM Borislav Petkov bp@alien8.de wrote:
On Thu, Jan 06, 2022 at 10:55:20PM +0800, Huang Rui wrote:
I just thought the CPPC function should be able to work on single core even SMP is disabled.
Why, because SMP=n is a real use case?!
And why can't it be a real use case?
FWIW, we were even speculating on removing SMP=n so how practical is using CPPC on SMP=n at all?
The honest answer is that we don't know.
Moreover, AFAICS the requisite #ifdeffery is there already and the problem is that the init_freq_invariance_cppc() defined in smpboot.c is not exported to modules and the CPPC code is modular in this build.