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Those were removed from mainline kernels by Chromebook devs, wanting to protect their broken babies at all cost. This patch was dully tested here : https://forum.armbian.com/topic/13515-panfrost-on-rk3288-and-gpu-on-600mhz-problems/ But you're welcome to test it again ! I did it, with a whole glmark2 round and it worked flawlessly. To test the GPU at that frequency, locate the **devfreq** folder of your GPU unit on your system (For tinkerboards, it's in **/sys/devices/platform/ffa30000.gpu/devfreq/ffa30000.gpu**) and then : * Check the available frequencies by doing `sudo cat available_frequencies` . That should output something like this : `100000000 200000000 300000000 400000000 500000000 600000000` Be sure that `500000000` is in the list. * Setup the minimum GPU frequency to 500Mhz like this : `sudo echo 500000000 > min_freq` You can also set up the GPU to not go over 500Mhz like this : `sudo echo 500000000 > max_freq` Signed-off-by: Miouyouyou (Myy) <myy@miouyouyou.fr> |
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imx6-current | ||
meson-current | ||
meson64-current | ||
meson64-legacy | ||
mt7623-legacy | ||
mvebu-current | ||
mvebu-dev | ||
mvebu-legacy | ||
mvebu64-current | ||
mvebu64-dev | ||
mvebu64-legacy | ||
odroidxu4-current | ||
odroidxu4-dev | ||
odroidxu4-legacy | ||
rk322x-current | ||
rk322x-legacy | ||
rk3399-legacy | ||
rockchip-current | ||
rockchip-dev | ||
rockchip-legacy | ||
rockchip64-current | ||
rockchip64-dev | ||
rockchip64-legacy | ||
rockpis-legacy | ||
s5p6818-legacy | ||
sunxi-current | ||
sunxi-dev | ||
sunxi-legacy | ||
imx6-dev | ||
meson-dev | ||
meson-legacy | ||
meson64-dev |