[ci] Add SSH key before init-submodules for access to rocket-gpu

Need to do the same for every init-submodule script run

.github/actions/prepare-gpu/action.yml

@@ -20,6 +20,8 @@ runs:
     - name: Init submodules to ensure stimuli is located
       run: |
         conda activate ${{ env.conda-env-name-no-time }}-$(date --date "${{ env.workflow-timestamp }}" +%Y%m%d)-${{ inputs.toolchain }}
+        eval `ssh-agent -s`
+        ssh-add - <<< '${{ secrets.PRIVATE_SSH_KEY }}'
         ./scripts/init-submodules-no-riscv-tools.sh --force
       shell: bash -leo pipefail {0}
 

.github/scripts/run-tests.sh

@@ -139,7 +139,7 @@ case $1 in
         ;;
     chipyard-vortex)
         # FIXME fix args.bin
-        run_binary BINARY=$LOCAL_CHIPYARD_DIR/generators/rocket-gpu/stimuli/vecadd.elf
+        run_binary BINARY=$LOCAL_CHIPYARD_DIR/generators/rocket-gpu/stimuli/vecadd.bin.elf
         ;;
     chipyard-coalescer)
         run_binary BINARY=none

.gitmodules

@@ -135,4 +135,4 @@
 	url = https://github.com/ucb-bar/berkeley-hardfloat.git
 [submodule "generators/rocket-gpu"]
 	path = generators/rocket-gpu
-	url = https://github.com/hansungk/rocket-gpu.git
+	url = git@github.com:hansungk/rocket-gpu.git