On Tue Jul 1, 2025 at 12:43 AM JST, Danilo Krummrich wrote: > On 6/24/25 4:56 AM, Alexandre Courbot wrote: >> On Tue Jun 24, 2025 at 6:01 AM JST, Danilo Krummrich wrote: >>> There's one thing that would be nice to fix subsequently, which is properly >>> resetting the GPU. Currently, it needs a power cycle to be able to probe >>> successfully after unbinding the driver. >> >> Yes, what I usually do is the following after unloading Nova: >> >> echo 1 | sudo tee /sys/bus/pci/devices/0000:01:00.0/reset >> >> and this allows it to probe again. Maybe we want to add some equivalent >> programmatically in the driver probe function? > > Probably -- how are things implemented on the GPU side of things? Is the GPU > firmware surviving a FLR?
After a FLR all firmware is cleared and the WPR2 region is wiped, meaning GPU initialization has to be done again from the very beginning.
