18 lines
669 B
Plaintext
18 lines
669 B
Plaintext
# Recommended kernel boot parameters for AMD Strix Halo
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# Add to GRUB_CMDLINE_LINUX in /etc/default/grub
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#
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# After editing, regenerate GRUB:
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# sudo grub2-mkconfig -o /boot/grub2/grub.cfg
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# Then reboot.
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#
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# For 64GB system (HP ZBook Ultra G1a):
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iommu=pt amdgpu.gttsize=60416 ttm.pages_limit=15466496
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#
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# For 128GB system (Framework Desktop, GMKtec EVO X2):
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# iommu=pt amdgpu.gttsize=126976 ttm.pages_limit=32505856
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#
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# Parameter explanation:
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# iommu=pt - IOMMU passthrough, reduces memory access latency
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# amdgpu.gttsize=N - Max GPU-addressable system RAM in MiB (total - 4GB reserve)
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# ttm.pages_limit=N - Max pinnable 4K pages (gttsize_MiB * 256)
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