User:TheSame/google-krane notes/gpu

Parameter access

- Available frequencies: /sys/devices/platform/soc/13040000.gpu/devfreq/13040000.gpu/available_frequencies;

- Available governors: /sys/devices/platform/soc/13040000.gpu/devfreq/13040000.gpu/available_governors;

- Current frequency: /sys/devices/platform/soc/13040000.gpu/devfreq/13040000.gpu/cur_freq;

- Max frequency: /sys/devices/platform/soc/13040000.gpu/devfreq/13040000.gpu/max_freq;

- Min frequency: /sys/devices/platform/soc/13040000.gpu/devfreq/13040000.gpu/min_freq.

Attempts to overclock

To change the GPU specifications, you can try making a modification to mt8183-kukui-krane-sku176.dts starting with the line:

        opp-table-0 {
                compatible = "operating-points-v2";
                opp-shared;
                phandle = <0x6e>;

Unfortunately, I have accomplished nothing. The GPU accepts changes in voltage. But changing the frequency even by 1Mhz leads to lack of stability in glmark2 tests.

Perhaps it is the limitations of the chip itself. Perhaps I lack the knowledge to do it correctly.