mpw-precheck support for gf180mcuC designs

[proppy]

mpw_precheck should have support for selecting different PDK and validate user project based on gf180mcuC.

[jeffdi]

Sub-tasks:

• [x] xor
• [ ] consistency
• [ ] user_defines
• [x] drc - mr deck
• [ ] metal density
• [x] zero area

user_project_area size needs to be adjusted.

[jeffdi]

GF MPW Precheck Readiness Checklist

The following highlights key pieces of work required to get the precheck ready to support the GF180 process, this doesn't include every change required.

• Impacted Checks

  • Consistency Check
    • Hardcoded sky130 process specifics
    • Netlist parsers utilize sky130 specific regex to identify cell-names
    • Main script requires modest changes
  • KLayout Checks
    • Most checks don't have GF equivalents
    • Regular mention of sky130 specific rules and decks
  • Magic DRC Check
    • Significant rework required
    • Harded-coded paths to sky130 PDK files with unknown GF equivalents
    • sky130 specific .magicrc
  • XoR Check
    • fixed paths and dimensions specifc to sky130 process and caravel with unknown GF equivalents

Most of the aforementioned checks will be relatively solved by providing GF180 equivalents; however, some refactoring effort across most checks will be required to accommodate a variable pdk configuration based on the pdk and in some cases the pdk variant as well

[proppy]

• KLayout Checks
  • Most checks don't have GF equivalents

Does that mean that the klayout decks at https://github.com/google/globalfoundries-pdk-libs-gf180mcu_fd_pr/tree/e1b4e187900370103bf9b8a22bb8625f883368ef/rules/klayout are incomplete?

• Magic DRC Check

Where do those currently live? (I couldn't find any magic drc deck in the GF180MCU PDK repos)

• sky130 specific .magicrc

I think open_pdks already ships the gf180mcu equivalent: https://github.com/RTimothyEdwards/open_pdks/blob/master/gf180mcu/magic/gf180mcu.magicrc

/cc @RTimothyEdwards @QuantamHD @mithro

[proppy]

@jeffdi any updates?

[proppy]

Magic DRC Check Significant rework required

@jeffdi do we have a more granular view of the required work?

[proppy]

with #155 I still get the following violations on https://github.com/efabless/caravel_user_project example project:

{{STEP UPDATE}} Executing Check 2 of 4: Klayout FEOL
Total # of DRC violations is 163740 Please check /usr/local/google/home/proppy/src/github.com/efabless/caravel_user_project/precheck_results/14_NOV_2022___05_25_42/outputs/reports/klayout_feol_check.xml
{{STEP UPDATE}} Executing Check 3 of 4: Klayout BEOL
Total # of DRC violations is 163740 Please check /usr/local/google/home/proppy/src/github.com/efabless/caravel_user_project/precheck_results/14_NOV_2022___05_25_42/outputs/reports/klayout_beol_check.xml
{{STEP UPDATE}} Executing Check 4 of 4: Klayout Offgrid
Total # of DRC violations is 163740 Please check /usr/local/google/home/proppy/src/github.com/efabless/caravel_user_project/precheck_results/14_NOV_2022___05_25_42/outputs/reports/klayout_offgrid_check.xml

@jeffdi is that expected?