On Sat, Jul 27, 2019 at 12:58:54PM +0530, Amit Kucheria wrote:
> On Fri, Jul 26, 2019 at 4:59 PM Brian Masney <masneyb@xxxxxxxxxxxxx> wrote:
> > On Fri, Jul 26, 2019 at 04:40:16PM +0530, Amit Kucheria wrote:
> > > How well does cpufreq work on 8974? I haven't looked at it yet but
> > > we'll need it for thermal throttling.
> >
> > I'm not sure how to tell if the frequency is dynamically changed during
> > runtime on arm. x86-64 shows this information in /proc/cpuinfo. Here's
> > the /proc/cpuinfo on the Nexus 5:
>
> Nah. /proc/cpuinfo won't show what we need.
>
> Try the following:
>
> $ grep "" /sys/devices/system/cpu/cpufreq/policy?/*
>
> More specifically, the following files have the information you need.
> Run watch -n1 on them.
>
> $ grep "" /sys/devices/system/cpu/cpufreq/policy?/scaling_*_freq
There's no cpufreq directory on msm8974:
# ls -1 /sys/devices/system/cpu/
cpu0
cpu1
cpu2
cpu3
cpuidle
hotplug
isolated
kernel_max
modalias
offline
online
possible
power
present
smt
uevent
I'm using qcom_defconfig.
Brian
