18:08 <Kwiboo> macromorgan: here is early patches related to scmi gpu clocks on rk35xx: https://github.com/Kwiboo/linux-rockchip/commits/next-20250428-rk35xx-scmi-gpu-clk/ includes adding opp-suspend for the rk356x gpu opp table, something that possible could improve with the sleep/suspend issue

18:08 <Kwiboo> more testing is needed on rk3576, however on rk3588 the glmark2-es2-gbm terrain fps improves around 9-10% when gpu now can run at full 1ghz with pvtpll instead of 850mhz using normal plls

18:11 <CounterPillow> Kwiboo: I can look into those on RK3576, it was on my radar anyway as a thing to look into eventually (see <https://gitlab.collabora.com/hardware-enablement/rockchip-3588/linux/-/issues/26>)

18:47 <Kwiboo> CounterPillow: please do :-), I have not yet tested on rk3576, I hope it work similar to rk356x or it may need some more work similar to rk3588 where grf for pvtpll seem to be in the gpu power domain, so changin rate while power domain was down or gpu clk was disable caused freeze or SError

18:53 <Kwiboo> the arm bifrost mali driver in rk vendor kernel seem to change to 200mhz at PM runtime suspend: https://github.com/rockchip-linux/kernel/blob/develop-6.1/drivers/gpu/arm/bifrost/platform/rk/mali_kbase_config_rk.c#L233-L236 e.g. changes back to normal pll prior to clks is disabled and power domain is powered down

18:54 <Kwiboo> using the opp-suspend in a 200 mhz opp should make mainline work in a similar way