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SubjectRe: [PATCH] arm64: dts: mt8173: Re-measure capacity-dmips-mhz
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On 08/07/2020 20:55, Hsin-Yi Wang wrote:
> On Thu, Jul 9, 2020 at 1:01 AM Matthias Brugger <matthias.bgg@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.
>
>

applied to v5.8-next/dts64

Thanks!



>
>>
>> Regards,
>> Matthias
>>
>>>
>>> Signed-off-by: Hsin-Yi Wang <hsinyi@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@0 {
>>> <&apmixedsys CLK_APMIXED_MAINPLL>;
>>> clock-names = "cpu", "intermediate";
>>> operating-points-v2 = <&cluster0_opp>;
>>> - capacity-dmips-mhz = <526>;
>>> + capacity-dmips-mhz = <740>;
>>> };
>>>
>>> cpu1: cpu@1 {
>>> @@ -182,7 +182,7 @@ cpu1: cpu@1 {
>>> <&apmixedsys CLK_APMIXED_MAINPLL>;
>>> clock-names = "cpu", "intermediate";
>>> operating-points-v2 = <&cluster0_opp>;
>>> - capacity-dmips-mhz = <526>;
>>> + capacity-dmips-mhz = <740>;
>>> };
>>>
>>> cpu2: cpu@100 {
>>>

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