Sky130/Openroad Tutorial Fixes

.github/workflows/chipyard-full-flow.yml

@@ -107,6 +107,61 @@ jobs:
           source env.sh
           cd sims/verilator
           make verilog
+      - name: VLSI test
+        run: |
+          cd ${{ env.REMOTE_WORK_DIR }}
+          eval "$(conda shell.bash hook)"
+          source env.sh
+
+          cd vlsi
+
+          # NOTE: most conda installs are in separate conda envs because they mess up 
+          #   each other's versions (for no apparent reason) and we need the latest versions
+          conda config --add channels defaults
+          conda config --add channels litex-hub
+
+          # installs for example-sky130.yml
+          conda create -y --prefix ./.conda-sky130 open_pdks.sky130a=1.0.399_0_g63dbde9
+          git clone https://github.com/rahulk29/sram22_sky130_macros.git
+
+          # installs for example-openroad.yml
+          conda create -y --prefix ./.conda-yosys yosys=0.27_4_gb58664d44
+          conda create -y --prefix ./.conda-openroad openroad=2.0_7070_g0264023b6
+          conda create -y --prefix ./.conda-klayout klayout=0.28.5_98_g87e2def28
+          conda create -y --prefix ./.conda-signoff magic=8.3.376_0_g5e5879c netgen=1.5.250_0_g178b172
+
+          echo "# Tutorial configs" > tutorial.yml
+          echo "# pdk" > tutorial.yml
+          echo "technology.sky130.sky130A: $PWD/.conda-sky130/share/pdk/sky130A" >> tutorial.yml
+          echo "technology.sky130.sram22_sky130_macros: $PWD/sram22_sky130_macros" >> tutorial.yml
+          echo "" >> tutorial.yml
+          echo "# tools" >> tutorial.yml
+          echo "synthesis.yosys.yosys_bin: $PWD/.conda-yosys/bin/yosys" >> tutorial.yml
+          echo "par.openroad.openroad_bin: $PWD/.conda-openroad/bin/openroad" >> tutorial.yml
+          echo "par.openroad.klayout_bin: $PWD/.conda-klayout/bin/klayout" >> tutorial.yml
+          echo "drc.magic.magic_bin: $PWD/.conda-signoff/bin/magic" >> tutorial.yml
+          echo "lvs.netgen.netgen_bin: $PWD/.conda-signoff/bin/netgen" >> tutorial.yml
+          echo "" >> tutorial.yml
+          echo "# speed up tutorial runs & declutter log output" >> tutorial.yml
+          echo "par.openroad.timing_driven: false" >> tutorial.yml
+          echo "par.openroad.write_reports: false" >> tutorial.yml
+
+          conda config --remove channels litex-hub
+          conda config --remove channels defaults
+
+          export tutorial=sky130-openroad
+          export EXTRA_CONFS=tutorial.yml
+          export VLSI_TOP=RocketTile
+          make buildfile
+          make syn
+          # openroad freezes during some write commands after detailed route
+          # so need to stop the flow & run last step separately
+          make par HAMMER_EXTRA_ARGS="--stop_after_step extraction"
+          make redo-par HAMMER_EXTRA_ARGS="--start_before_step extraction"
+          make drc
+          # doesn't work for now bc of hammer sky130 plugin bug, fix in next release
+          # make lvs
+
 
   cleanup:
     name: cleanup

README.md

@@ -84,6 +84,7 @@ These additional publications cover many of the internal components used in Chip
     * **FireMarshal**: N. Pemberton, et al., *ISPASS'21*. [PDF](https://ieeexplore.ieee.org/document/9408192).
 * **VLSI**
     * **Hammer**: E. Wang, et al., *ISQED'20*. [PDF](https://www.isqed.org/English/Archives/2020/Technical_Sessions/113.html).
+    * **Hammer**: H. Liew, et al., *DAC'22*. [PDF](https://dl.acm.org/doi/abs/10.1145/3489517.3530672).
 
 ## Acknowledgements
 

conda-reqs/chipyard.yaml

@@ -1,5 +1,6 @@
 channels:
     - ucb-bar
+    - litex-hub
     - conda-forge
     - nodefaults
 
@@ -100,8 +101,9 @@ dependencies:
 
     # hammer packages
     - sty
+    - open_pdks.sky130a
     - pip:
-        - hammer-vlsi[asap7]==1.0.1
+        - hammer-vlsi[asap7]==1.0.4
 
     # doc requirements
     - sphinx