Messages in this thread | | | Date | Fri, 30 Aug 2013 13:03:59 +0530 | Subject | Re: [Query] CPUFreq: Does these machines have separate clock domains for CPUs? | From | Viresh Kumar <> |
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On 30 August 2013 12:18, Magnus Damm <magnus.damm@gmail.com> wrote: > Hi Viresh, > > On Thu, Aug 29, 2013 at 7:15 PM, Viresh Kumar <viresh.kumar@linaro.org> wrote: >> Hi, >> >> I have been doing some CPUFreq cleanup work and >> wanted to know if the below mentioned machines have separate >> clock domains for their CPUs or all share the same domain? >> >> So, that we can use some generic routines for these drivers which >> would eventually do: >> >> cpumask_setall(policy->cpus); >> >> And I wanted to make sure that this doesn't break them.. :) >> >> ...... >> >> The drivers are: > ... >> drivers/cpufreq/sh-cpufreq.c > ... > > The above SH cpufreq driver seems to be written with SMP in mind, but > I would say SMP is a very rare case for SH. So I believe it can be > considered as UP-only at this point. If Paul disagrees I'm quite sure > he will tell us.
Okay.. The problem isn't really SMP but different clock domains for CPUs in a SMP system..
So, even if we have a SMP SH machine, will it have same clock line for all CPUs?
I will go with the change anyway..
Thanks.
-- viresh
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