CI: Add missing pieces

arch/powerpc/configs/g5-qemu.config

@@ -0,0 +1,2 @@
+CONFIG_SERIAL_PMACZILOG=y
+CONFIG_SERIAL_PMACZILOG_CONSOLE=y

arch/powerpc/configs/pmac32-qemu.config

@@ -0,0 +1,4 @@
+CONFIG_SERIAL_PMACZILOG=y
+CONFIG_SERIAL_PMACZILOG_CONSOLE=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y

arch/powerpc/configs/ppc44x-qemu.config

@@ -0,0 +1,2 @@
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y

arch/powerpc/tools/ci-build.sh

@@ -0,0 +1,84 @@
+#!/bin/bash
+
+if [[ -z "$TARGET" || -z "$IMAGE" ]]; then
+    echo "Error: required environment variables not set!"
+    exit 1
+fi
+
+cmd="docker run --rm "
+cmd+="--network none "
+cmd+="-w /linux "
+
+linux_dir=$(realpath $(dirname $0))/../../../
+cmd+="-v $linux_dir:/linux:ro "
+
+cmd+="-e ARCH "
+cmd+="-e JFACTOR=$(nproc) "
+cmd+="-e KBUILD_BUILD_TIMESTAMP=$(date +%Y-%m-%d) "
+cmd+="-e CLANG "
+cmd+="-e LLVM_IAS "
+cmd+="-e SPARSE "
+
+if [[ -n "$MODULES" ]]; then
+    cmd+="-e MODULES=$MODULES "
+fi
+
+if [[ -n "$DEFCONFIG" ]]; then
+    if [[ $DEFCONFIG != *config ]]; then
+	DEFCONFIG=${DEFCONFIG}_defconfig
+    fi
+
+    cmd+="-e DEFCONFIG=${DEFCONFIG} "
+fi
+
+if [[ -n "$MERGE_CONFIG" ]]; then
+    cmd+="-e MERGE_CONFIG=$MERGE_CONFIG "
+fi
+
+if [[ "$SUBARCH" == "ppc64le" ]]; then
+    cross="powerpc64le-linux-gnu-"
+else
+    cross="powerpc-linux-gnu-"
+fi
+cmd+="-e CROSS_COMPILE=$cross "
+
+mkdir -p $HOME/output
+cmd+="-v $HOME/output:/output:rw "
+
+user=$(stat -c "%u:%g" $HOME/output)
+cmd+="-u $user "
+
+if [[ -n "$CCACHE" ]]; then
+    cmd+="-v $HOME/.ccache:/ccache:rw "
+    cmd+="-e CCACHE_DIR=/ccache "
+    cmd+="-e CCACHE=1 "
+fi
+
+if [[ -n "$TARGETS" ]]; then
+    cmd+="-e TARGETS=$TARGETS "
+fi
+
+if [[ -n "$INSTALL" ]]; then
+    cmd+="-e INSTALL=$INSTALL "
+fi
+
+if [[ "$TARGET" == "kernel" ]]; then
+    cmd+="-e QUIET=1 "
+fi
+
+if [[ -n $KBUILD_EXTRA_WARN ]]; then
+    cmd+="-e KBUILD_EXTRA_WARN=$KBUILD_EXTRA_WARN "
+fi
+
+cmd+="ghcr.io/linuxppc/build:$IMAGE-$(uname -m) "
+cmd+="/bin/container-build.sh $TARGET"
+
+(set -x; $cmd)
+
+rc=$?
+
+if [[ -n "$SPARSE" ]]; then
+    cat $HOME/output/sparse.log
+fi
+
+exit $rc