Updated commands to increase max unified memory usage on Framework Desktop under Fedora 43?

[Djip]

Fedora use systemd and kernel.

CMD for gtt (if realy needed… in many case it is not):

Experiments with using ROCM on the FW16 AMD

EDIT: The 34GB RAM limit can be increased using a few simple configuration commands: You can try increasing the GTT pool with something like: /etc/modprobe.d/increase_amd_memory.conf #Otherwise it's capped to only half the RAM options amdgpu gttsize=90000 #in MB options ttm pages_limit=22500000 #4k per page, 90GB total options ttm page_pool_size=22500000 Note: (gttsize * 1024) / 4.096 = ttm pages So, if you wish to use 60GB RAM with ROCM: options amdgpu gttsize=60000 #in MB options ttm …

# sudo nano /etc/modprobe.d/increase_amd_memory.conf
options ttm pages_limit=22500000 #4k per page, 90GB total
# options ttm page_pool_size=22500000  # not needed :)

And do not use this GRUG “hack” even grub cmd change have to be done an other way on never fedora.

If I remamber (not sure…) kernel cmd have to be set with

grubby --update-kernel=ALL --args="<cmd to define>"