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Fix panthor drm driver #1788

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Fix panthor drm driver #1788

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efcbbb7
Update gpu_fdinfo.cpp to fix panthor drm driver
pdapandapda Aug 26, 2025
ee2cb5b
Update gpu_fdinfo.h to fix panthor drm driver
pdapandapda Aug 26, 2025
59970c8
Update gpu.h to fix panthor drm driver
pdapandapda Aug 26, 2025
ba5e032
Update README.md to add panthor information
pdapandapda Aug 26, 2025
86da677
Update gpu_fdinfo.cpp
pdapandapda Aug 27, 2025
f2f9241
delete get_gpu_time_panthor delaration
pdapandapda Aug 27, 2025
ec97816
Update README.md
pdapandapda Aug 27, 2025
62cf55d
Update README.md
pdapandapda Aug 27, 2025
f425875
Update README.md
pdapandapda Aug 30, 2025
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1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -691,3 +691,4 @@ Example output:

#### Panfrost notes

@17314642 17314642 Aug 29, 2025

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just write this:

#### Panfrost and Panthor notes
- GPU usage requires `echo N | sudo tee /sys/class/drm/renderD*/device/profiling`
  - Where N is a number, 1 for panfrost and 3 for panthor.

- GPU usage requires `echo 1 | sudo tee /sys/class/drm/renderD*/device/profiling`
- If your linux kenel is newer than 6.10 and using "Panthor" drm driver,requires `echo 3 | sudo tee /sys/bus/platform/drivers/panthor/[a-f0-9]*.gpu/profiling`

@17314642 17314642 Aug 27, 2025

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is this 100% needed? are there no profiling file inside /sys/class/drm/renderD*/device like with panfrost?

@pdapandapda pdapandapda Aug 27, 2025

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echo 1 | sudo tee /sys/class/drm/renderD*/device/profiling would not work with panthor, official document shows the new address https://docs.kernel.org/gpu/panthor.html

@17314642 17314642 Aug 27, 2025

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echo <N> > /sys/bus/platform/drivers/panthor/[a-f0-9]*.gpu/profiling
echo <N> > /sys/bus/platform/drivers/panfrost/[a-f0-9]*.gpu/profiling

Are you sure?
https://docs.kernel.org/gpu/panfrost.html

@17314642 17314642 Aug 27, 2025

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To me it seems like two identical file paths, except driver names.

Only thing that might've changed is the value that you should write inside that file

@pdapandapda pdapandapda Aug 27, 2025

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Not working with my rk3588 at least.

@pdapandapda pdapandapda Aug 27, 2025

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echo 3 | sudo tee /sys/class/drm/renderD*/device/profiling

works