Should I even care for "Enable Southern Islands (SI) and Sea Islands"?

860lacov · 2023-11-01 06:22:18

Device-1: AMD Phoenix1 vendor: Lenovo driver: amdgpu v: kernel arch: RDNA-3
    pcie: speed: 16 GT/s lanes: 16 ports: active: eDP-1 empty: DP-1, DP-2,
    DP-3, DP-4, DP-5, DP-6, HDMI-A-1 bus-ID: 64:00.0 chip-ID: 1002:15bf
    class-ID: 0300

lspci -k | grep -A 3 -E "(VGA|3D)"
pcilib: Error reading /sys/bus/pci/devices/0000:00:08.3/label: Operation not permitted
64:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Phoenix1 (rev dd)
        Subsystem: Lenovo Phoenix1
        Kernel driver in use: amdgpu
        Kernel modules: amdgpu

If I'm correct, my GPU doesn't need settings from Enable Southern Islands (SI) and Sea Islands (CIK) support

But at the end of:

Disable loading radeon completely at boot
The kernel may still probe and load the radeon module depending on the specific graphics chip involved, but the module is unnecessary to have loaded after confirming amdgpu works as expected. Reboot between each step to confirm it works before moving to the next step:
Use the module parameters on the kernel command line method to ensure amdgpu works as expected
Use the MODULES=(amdgpu) mkinitcpio method but do not add radeon to the configuration
Test that modprobe -r radeon will remove the kernel module cleanly after logged into the desktop
Blacklist the radeon module from being probed by the kernel during second stage boot:
/etc/modprobe.d/radeon.conf
blacklist radeon
The output of lsmod and dmesg should now only show the amdgpu driver loading, radeon should not be present. The directory /sys/module/radeon should not exist.

There is:

The output of lsmod and dmesg should now only show the amdgpu driver loading, radeon should not be present. The directory /sys/module/radeon should not exist.

lsmod and dmesg output I can confirm, butthe part of directory I can't - it exists in my system.

lspci shows that only amdgpu is being used so I assume that everything is correct without changes. But it is assumption and not certainty.

seth · 2023-11-01 08:40:18

https://en.wikipedia.org/wiki/Radeon_HD_7000_series was a series of GPUs 11 years ago.

And here's your obligatory geography lesson: https://www.x.org/wiki/RadeonFeature/#d … etingnames

Arch Linux

#1 2023-11-01 06:22:18

Should I even care for "Enable Southern Islands (SI) and Sea Islands"?

#2 2023-11-01 08:40:18

Re: Should I even care for "Enable Southern Islands (SI) and Sea Islands"?

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