#!/bin/sh
# bee-nvidia-load — load NVIDIA kernel modules and create device nodes
# Called by bee-nvidia.service at boot.

NVIDIA_KO_DIR="/usr/local/lib/nvidia"

log() { echo "[bee-nvidia] $*"; }

log "kernel: $(uname -r)"

if [ ! -d "$NVIDIA_KO_DIR" ]; then
    log "ERROR: NVIDIA module dir missing: $NVIDIA_KO_DIR"
    exit 1
fi

log "module dir: $NVIDIA_KO_DIR"
ls "$NVIDIA_KO_DIR"/*.ko 2>/dev/null | sed 's/^/  /' || true

# Load modules via insmod (direct load — no depmod needed)
for mod in nvidia nvidia-modeset nvidia-uvm; do
    ko="$NVIDIA_KO_DIR/${mod}.ko"
    [ -f "$ko" ] || ko="$NVIDIA_KO_DIR/${mod//-/_}.ko"
    if [ -f "$ko" ]; then
        if insmod "$ko" 2>/dev/null; then
            log "loaded: $mod"
        else
            log "WARN: failed to load: $mod"
            dmesg | tail -n 5 | sed 's/^/  dmesg: /' || true
        fi
    else
        log "WARN: not found: $ko"
    fi
done

# Create /dev/nvidia* device nodes (udev rules absent since we use .run installer)
nvidia_major=$(grep -m1 ' nvidiactl$' /proc/devices 2>/dev/null | awk '{print $1}')
if [ -n "$nvidia_major" ]; then
    mknod -m 666 /dev/nvidiactl c "$nvidia_major" 255 2>/dev/null \
        && log "created /dev/nvidiactl (major $nvidia_major)" \
        || log "WARN: /dev/nvidiactl already exists or mknod failed"
    for i in 0 1 2 3 4 5 6 7; do
        mknod -m 666 "/dev/nvidia$i" c "$nvidia_major" "$i" 2>/dev/null || true
    done
    log "created /dev/nvidia{0-7}"
else
    log "WARN: nvidiactl not in /proc/devices — no GPU hardware present?"
fi

uvm_major=$(grep -m1 ' nvidia-uvm$' /proc/devices 2>/dev/null | awk '{print $1}')
if [ -n "$uvm_major" ]; then
    mknod -m 666 /dev/nvidia-uvm       c "$uvm_major" 0 2>/dev/null \
        && log "created /dev/nvidia-uvm (major $uvm_major)" \
        || log "WARN: /dev/nvidia-uvm already exists"
    mknod -m 666 /dev/nvidia-uvm-tools c "$uvm_major" 1 2>/dev/null || true
else
    log "WARN: nvidia-uvm not in /proc/devices"
fi

log "done"