24 lines
888 B
Bash
Executable File
24 lines
888 B
Bash
Executable File
#!/bin/bash
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# blob:summary=Detect whether the computer has an NVIDIA GPU without GSP firmware (Maxwell/Pascal/Volta).
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# Bounded at both ends, because the callers install the 580xx driver on a match
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# and it supports exactly this span. GSP firmware arrived with Turing, which is
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# also where device IDs cross 0x1e00. Maxwell opens at 0x1340, one ID after the
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# last Kepler part; anything older needs a legacy driver we don't package.
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#
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# Read the cached sysfs IDs rather than lspci, which reads PCI config space and
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# resumes runtime-suspended GPUs.
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pci_devices_path="${BLOB_PCI_DEVICES_PATH:-/sys/bus/pci/devices}"
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shopt -s nullglob
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for device in "$pci_devices_path"/*; do
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[[ $(< "$device/vendor") == "0x10de" ]] || continue
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[[ $(< "$device/class") == 0x03* ]] || continue
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device_id=$(< "$device/device")
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(( device_id >= 0x1340 && device_id < 0x1e00 )) && exit 0
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done
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exit 1
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