linaro@linaro-alip:~$ dmesg | grep mali
[ 0.625832] mali fde60000.gpu: Kernel DDK version g7p1-01bet0
[ 0.625919] mali fde60000.gpu: Looking up mali-supply from device tree
[ 0.625945] mali fde60000.gpu: Device initialization Deferred
[ 0.974495] mali fde60000.gpu: Kernel DDK version g7p1-01bet0
[ 0.974627] mali fde60000.gpu: Looking up mali-supply from device tree
[ 0.974740] mali fde60000.gpu: Linked as a consumer to regulator.16
[ 0.974760] mali fde60000.gpu: Looking up shadercores-supply from device tree
[ 0.974771] mali fde60000.gpu: Looking up shadercores-supply property in node /gpu@fde60000 failed
[ 0.974865] mali fde60000.gpu: Looking up mali-supply from device tree
[ 0.974900] mali fde60000.gpu: Looking up shadercores-supply from device tree
[ 0.974909] mali fde60000.gpu: Looking up shadercores-supply property in node /gpu@fde60000 failed
[ 0.974924] mali fde60000.gpu: dev_pm_opp_set_regulators: no regulator (shadercores) found: -19
[ 0.975017] mali fde60000.gpu: leakage=10
[ 0.975484] mali fde60000.gpu: avs=0
[ 0.975506] W : [File] : drivers/gpu/arm/bifrost/platform/rk/mali_kbase_config_rk.c; [Line] : 112; [Func] : kbase_platform_rk_init(); power-off-delay-ms not available.
[ 0.975871] mali fde60000.gpu: GPU identified as 0x2 arch 7.4.0 r1p0 status 0
[ 0.975947] mali fde60000.gpu: No priority control manager is configured
[ 0.975962] mali fde60000.gpu: No memory group manager is configured
[ 0.976445] mali fde60000.gpu: l=-2147483648 h=2147483647 hyst=0 l_limit=0 h_limit=0 h_table=0
[ 0.977068] mali fde60000.gpu: Probed as mali0
[ 0.999446] I : [File] : drivers/gpu/arm/mali400/mali/linux/mali_kernel_linux.c; [Line] : 417; [Func] : mali_module_init(); svn_rev_string_from_arm of this mali_ko is '', rk_ko_ver is '5', built at '16:28:04', on 'Dec 31 2021'.
rockchip has two sets of hardware kernel driver.
The first one is vcodec_service/vpu_service/mpp_service which is a high
performance stateless frame base hardware kernel driver. This driver supports
all available codecs that hardware can provide. This driver is used on Android/
Linux.
The second one is v4l2 driver which is developed for ChromeOS. It currently
supports H.264/H.265/vp8/vp9. This driver is used on ChomeOS/Linux.
Mpp plans to support serval userspace applications including OpenMax, FFmpeg,
gstreamer, libva.
