13:00 <f11f12> For the GPU clock (dvalin_clk_) it probably should be something other tha just oscin (0). Does anyone have a reference frequency and clock source setting?

13:02 <narmstrong> f11f12: can you elaborate ?

13:05 <f11f12> narmstrong the dvalin clock (GPU) is set in HHI_DVALIN_CLK_CNTL, in my current setup it sources from oscin which is pretty slow. But I'm not sure if I should choose fclk_divX (any of them) as I don't how fast the GPU should be clocked

13:12 <narmstrong> f11f12: do you mean https://github.com/torvalds/linux/blob/master/drivers/clk/meson/g12a.c#L3778 and https://github.com/torvalds/linux/blob/master/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi#L61 ?

13:30 <f11f12> narmstrong: yes, indeed. I have the mali node, it's referencing the opp table you pointed to. When I check 0xff63c1B0 it's using oscin, so a few MHz. It's the first in the list (fw_clk xtal) so I assume it's the default

13:30 <narmstrong> f11f12: yes at boot it's default

13:32 <f11f12> The gpu clock has two parents (mali 0/1) and a glitch free mux to switch between them. For my debugging I'd like to set the gpu clock to some sane default, can I use 800MHz (div 2p5)?

13:35 <narmstrong> f11f12: yes it should work

20:00 <f11f12> narmstrong: when running a test I see gpu interrupts (192, gpu_gp), the clock is xtal (0xff63c1B0 is 0x100) but the test fails with: JS: Job Hard-Stopped (took more than 50 ticks at 100 ms/tick)

20:01 <f11f12> Is there anything I can read out to get more clues?