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core: Improve GPU detection and mapping logic

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Refactor GPU detection logic to map DRI nodes to their owning GPUs based on vendor IDs. Update messages for detected Intel and AMD GPUs.
This commit is contained in:
CanbiZ (MickLesk)
2026-07-20 11:05:51 +02:00
committed by GitHub
parent a6a608614f
commit 30f855f852
1 changed files with 23 additions and 19 deletions
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misc/build.func
+23 -19
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@@ -4233,27 +4233,31 @@ $PCT_OPTIONS_STRING"
return 0 return 0
fi fi
# Check for Intel GPU - look for Intel vendor ID [8086] # Map each DRI render/card node to its owning GPU via the PCI vendor ID
if grep -q "\[8086:" <<<"$pci_vga_info"; then # exposed in sysfs (/sys/class/drm/<node>/device/vendor). This is required
msg_custom "🎮" "${BL}" "Detected Intel GPU" # on multi-GPU hosts: globbing every /dev/dri node onto the first detected
if [[ -d /dev/dri ]]; then # vendor would pass through *both* GPUs and skip the selection prompt.
for d in /dev/dri/renderD* /dev/dri/card*; do if [[ -d /dev/dri ]]; then
[[ -e "$d" ]] && INTEL_DEVICES+=("$d") for d in /dev/dri/renderD* /dev/dri/card*; do
done [[ -e "$d" ]] || continue
fi local node vendor
node=$(basename "$d")
vendor=$(cat "/sys/class/drm/${node}/device/vendor" 2>/dev/null || true)
case "$vendor" in
0x8086) INTEL_DEVICES+=("$d") ;; # Intel
0x1002 | 0x1022) AMD_DEVICES+=("$d") ;; # AMD/ATI
0x10de) ;; # NVIDIA - handled via /dev/nvidia* below
*) msg_debug "Unmapped GPU vendor '${vendor:-unknown}' for $d" ;;
esac
done
fi fi
# Check for AMD GPU - look for AMD vendor IDs [1002] (AMD/ATI) or [1022] (AMD) [[ ${#INTEL_DEVICES[@]} -gt 0 ]] && msg_custom "🎮" "${BL}" "Detected Intel GPU"
if grep -qE "\[1002:|\[1022:" <<<"$pci_vga_info"; then [[ ${#AMD_DEVICES[@]} -gt 0 ]] && msg_custom "🎮" "${RD}" "Detected AMD GPU"
msg_custom "🎮" "${RD}" "Detected AMD GPU"
if [[ -d /dev/dri ]]; then # AMD compute (ROCm) additionally needs /dev/kfd alongside the render nodes
# Only add if not already claimed by Intel if [[ ${#AMD_DEVICES[@]} -gt 0 && -e /dev/kfd ]]; then
if [[ ${#INTEL_DEVICES[@]} -eq 0 ]]; then AMD_DEVICES+=("/dev/kfd")
for d in /dev/dri/renderD* /dev/dri/card* /dev/kfd; do
[[ -e "$d" ]] && AMD_DEVICES+=("$d")
done
fi
fi
fi fi
# Check for NVIDIA GPU - look for NVIDIA vendor ID [10de] # Check for NVIDIA GPU - look for NVIDIA vendor ID [10de]