11-25-2020, 04:19 AM
@icecream95 - another bug with recent frequency scaling changes to panfrost it's from 5.9.9 up. And manifests itself only when panfrost is baked into the kernel.
The frequencies are not registered correctly.
Kernel with frequency patches reverted:
Mainline kernel:
Errors:
GPU gets stuck in one frequency and does not scale properly.
The frequencies are not registered correctly.
Kernel with frequency patches reverted:
Code:
cat /sys/devices/platform/ff9a0000.gpu/devfreq/ff9a0000.gpu/available_frequencies
200000000 297000000 400000000 500000000 600000000 800000000
Mainline kernel:
Code:
cat /sys/devices/platform/ff9a0000.gpu/devfreq/ff9a0000.gpu/available_frequencies
3472328296228218214 7094142619989800238 3472328296365385280 499974192 600000000 800000000
Errors:
Code:
[ 18.139041] devfreq ff9a0000.gpu: Couldn't update frequency transition information.
GPU gets stuck in one frequency and does not scale properly.