[PATCH] arm64: dts: mt8173: Re-measure capacity-dmips-mhz

[Hsin-Yi Wang]

On Thu, Jul 9, 2020 at 1:01 AM Matthias Brugger <matthias.bgg at gmail.com> wrote:
>
>
>
> On 06/07/2020 10:37, Hsin-Yi Wang wrote:
> > Re measure capacity-dmips-mhz on elm and hana:
> >
> > cpu 1:  9502 DMIPS @ 1703 Mhz
> > cpu 3: 16250 DMIPS @ 2106 Mhz
> >
> > ==> 740 : 1024
>
> I have some trouble to match the commit message to the actual patch. Commit
> message talks about cpu 1 but patch changes cpu0. Where are the values of the
> other CPUs?

Small cpu on 8173 is cpu0 & cpu1, while big cpu is cpu2 & cpu3.
Small cpu: 9502 DMIPS @ 1703 Mhz
Big cpu:   16250 DMIPS @ 2106 Mhz

9502/1703 : 16250/2106 = 740 : 1024 (scale big cpu to 1024), and this patch
changes the small cpu value to 740.



>
> Regards,
> Matthias
>
> >
> > Signed-off-by: Hsin-Yi Wang <hsinyi at chromium.org>
> > ---
> >   arch/arm64/boot/dts/mediatek/mt8173.dtsi | 4 ++--
> >   1 file changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/arch/arm64/boot/dts/mediatek/mt8173.dtsi b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > index 70b1ffcab7f0..5e046f9d48ce 100644
> > --- a/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > +++ b/arch/arm64/boot/dts/mediatek/mt8173.dtsi
> > @@ -167,7 +167,7 @@ cpu0: cpu at 0 {
> >                                <&apmixedsys CLK_APMIXED_MAINPLL>;
> >                       clock-names = "cpu", "intermediate";
> >                       operating-points-v2 = <&cluster0_opp>;
> > -                     capacity-dmips-mhz = <526>;
> > +                     capacity-dmips-mhz = <740>;
> >               };
> >
> >               cpu1: cpu at 1 {
> > @@ -182,7 +182,7 @@ cpu1: cpu at 1 {
> >                                <&apmixedsys CLK_APMIXED_MAINPLL>;
> >                       clock-names = "cpu", "intermediate";
> >                       operating-points-v2 = <&cluster0_opp>;
> > -                     capacity-dmips-mhz = <526>;
> > +                     capacity-dmips-mhz = <740>;
> >               };
> >
> >               cpu2: cpu at 100 {
> >