On a clean working area after following the steps outlined i open-source-silicon.dev #shuttle

On a clean working area, after following the steps...

Kauser Johar

02/04/2022, 12:47 PM

On a clean working area, after following the steps outlined in the documentation, when I run

make verify-io_ports

, I get the below error.

/<path>/caravel/verilog/rtl/caravel_netlists.v:90: Include file mgmt_core_wrapper.v not found

Marwan Abbas

02/04/2022, 1:13 PM

You need to

make install_mcw

, in order to get the mgmt_core_wrapper

Kauser Johar

02/04/2022, 1:13 PM

And this one too-

/<path>/caravel/verilog/rtl/caravel_netlists.v:47: Include file libs.ref/sky130_sram_macros/verilog/sky130_sram_2kbyte_1rw1r_32x512_8.v not found

Kauser Johar

02/04/2022, 1:14 PM

You need to
make install_mcw
, in order to get the mgmt_core_wrapper

I did that. I have the

mgmt_core_wrapper/

folder at the root after building that command.

Kauser Johar

02/04/2022, 1:14 PM

The

iverilog

command in the

Makefile

doesn't include

mgmt_core_wrapper

in the search path.

Marwan Abbas

02/04/2022, 1:15 PM

We're working on a fix, will notify you once it's merged

Kauser Johar

02/04/2022, 1:15 PM

Thanks @Marwan Abbas. Can you also suggest what could be the problem with the below error?

/<path>/caravel/verilog/rtl/caravel_netlists.v:47: Include file libs.ref/sky130_sram_macros/verilog/sky130_sram_2kbyte_1rw1r_32x512_8.v not found

Marwan Abbas

02/04/2022, 1:19 PM

You need to install the SRAM when installing the pdk

Marwan Abbas

02/04/2022, 1:21 PM

using

make pdk-with-sram

Kauser Johar

02/04/2022, 1:22 PM

Sure I can do that. Perhaps the documentation needs an update? I'm simply trying to run the instructions out of the box so it shouldn't really fail.

Marwan Abbas

02/04/2022, 1:24 PM

Yes, we are working on it, sorry for the inconvenience.

Kauser Johar

02/04/2022, 1:29 PM

No problems 🙂

Kauser Johar

02/04/2022, 1:30 PM

And thanks for the quick response. I'm building the pdk and will let you know if everything was clean.

Marwan Abbas

02/04/2022, 1:44 PM

Anytime, please let me know if you have anymore questions

🙏 1

Kauser Johar

02/04/2022, 3:34 PM

Another issue I hit so worth considering. The instructions suggested to set

export MCW=pico

. We also run

make install_mcw

. And after cloning the repo that contains the

Pico

CPU, we sort of end up with two versions of the

mgmt_core_wrapper

. So the

Makefile

for simulation needs to pick up the correct core if you end up with both. Ideally if

MCW=pico

is set, then the search path should look for

caravel_pico

and not

mgmt_core_wrapper

directory. I hope this makes sense.

Marwan Abbas

02/04/2022, 3:36 PM

This is actually an issue from my end, the documentation shouldn't be mentioning pico as we're using litex now. We're removing this part from the documentation now. don't export pico.

Kauser Johar

02/04/2022, 3:36 PM

Understood!

Mitch Bailey

02/04/2022, 3:52 PM

@Marwan Abbas I believe the

caravel-lite/Makefile

is missing

make full-pdk

and

make full-pdk-with-sram

. I couldn't figure out how to install all the libraries with the current Makefile.

Marwan Abbas

02/04/2022, 5:08 PM

@Mitch Bailey Unfortunately that feature is not supported.

Mitch Bailey

02/04/2022, 11:37 PM

Here are the changes I made for full pdk installation.

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local@ciic-cvc:~/mpw-5/test-mpw5a/caravel_example/caravel$ git diff
diff --git a/Makefile b/Makefile
index 806cfd1..f4055e9 100644
--- a/Makefile
+++ b/Makefile
@@ -1213,6 +1213,11 @@ pdk-with-sram: pdk
 .PHONY: pdk
 pdk: skywater-pdk skywater-library skywater-timing open_pdks build-pdk gen-sources
 
+full-pdk-with-sram: INSTALL_SRAM=yes
+full-pdk-with-sram: full-pdk
+.PHONY: full-pdk
+full-pdk: skywater-pdk all-skywater-libraries open_pdks build-pdk gen-sources
+
 $(PDK_ROOT)/skywater-pdk:
        git clone <https://github.com/google/skywater-pdk.git> $(PDK_ROOT)/skywater-pdk
 
@@ -1230,6 +1235,18 @@ skywater-library: check-env $(PDK_ROOT)/skywater-pdk
                git submodule update --init libraries/$(SPECIAL_VOLTAGE_LIBRARY)/latest && \
                git submodule update --init libraries/$(PRIMITIVES_LIBRARY)/latest
 
+.PHONY: all-skywater-libraries
+all-skywater-libraries: skywater-pdk
+       cd $(PDK_ROOT)/skywater-pdk && \
+               git submodule update --init libraries/sky130_fd_sc_hd/latest && \
+               git submodule update --init libraries/sky130_fd_sc_hs/latest && \
+               git submodule update --init libraries/sky130_fd_sc_hdll/latest && \
+               git submodule update --init libraries/sky130_fd_sc_ms/latest && \
+               git submodule update --init libraries/sky130_fd_sc_ls/latest && \
+               git submodule update --init libraries/sky130_fd_sc_hvl/latest && \
+               git submodule update --init libraries/sky130_fd_io/latest && \
+               $(MAKE) timing
+
 gen-sources: $(PDK_ROOT)/sky130A
        touch $(PDK_ROOT)/sky130A/SOURCES
        echo -ne "skywater-pdk " >> $(PDK_ROOT)/sky130A/SOURCES

Supratim Das

02/05/2022, 11:11 AM

make pdk-with-sram fails with the following:

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Error message output from magic script:
Can't write file named '(UNNAMED)'
Annotating files in /home/supratim/caravel_tutorial/pdks/open_pdks/sky130/sky130A/libs.ref/sky130_sram_macros/maglef
No CDL file contains sky130_sram_macros device sky130_sram_1kbyte_1rw1r_32x256_8
No CDL file contains sky130_sram_macros device sky130_sram_1kbyte_1rw1r_8x1024_8
No CDL file contains sky130_sram_macros device sram_1rw1r_32_256_8_sky130
No CDL file contains sky130_sram_macros device sky130_sram_2kbyte_1rw1r_32x512_8
make[4]: Leaving directory '/home/supratim/caravel_tutorial/pdks/open_pdks/sky130'
if test "x" != "x" ; then \
        echo "Building OSU 12-track-high standard cell library" ;\
        make osu-t12-a ;\
fi
if test "x" != "x" ; then \
        echo "Building OSU 15-track-high standard cell library" ;\
        make osu-t15-a ;\
fi
if test "x" != "x" ; then \
        echo "Building OSU 18-track-high standard cell library" ;\
        make osu-t18-a ;\
fi
make[3]: Leaving directory '/home/supratim/caravel_tutorial/pdks/open_pdks/sky130'
echo "Ended sky130A PDK staging on "`date` >> sky130A_make.log
make[2]: Leaving directory '/home/supratim/caravel_tutorial/pdks/open_pdks/sky130'
make[2]: Entering directory '/home/supratim/caravel_tutorial/pdks/open_pdks/sky130'
echo "Starting SKY130 PDK migration on "`date` > sky130A_install.log
../common/staging_install.py -std_format \
        -source /home/supratim/caravel_tutorial/pdks/open_pdks/sky130/sky130A \
        -finalpath /home/supratim/caravel_tutorial/pdks/sky130A \
        -variable PDKPATH \
        -link_from none 2>&1 | tee -a sky130A_install.log
Installing in target directory /home/supratim/caravel_tutorial/pdks/sky130A
Removing files from target
Copying staging files to target
Done.
Changing local path references from /home/supratim/caravel_tutorial/pdks/open_pdks/sky130/sky130A to /home/supratim/caravel_tutorial/pdks/sky130A
Part 1:  Tools
      xschem (1 substitution)
      xcircuit (1 substitution)
      qflow (16 substitutions)
      magic (2 substitutions)
Part 2:  Libraries
   sky130_fd_pr
      mag (1 substitution)
      maglef (1 substitution)
   sky130_ml_xx_hd
   sky130_sram_macros
      mag (1 substitution)
      maglef (1 substitution)
   sky130_fd_sc_hd
      mag (1 substitution)
      maglef (1 substitution)
   sky130_fd_sc_hvl
      mag (1 substitution)
      maglef (1 substitution)
   sky130_fd_io
      mag (1 substitution)
      maglef (1 substitution)
Removing temporary files from destination.
Done with PDK migration.
echo "Ended SKY130 PDK migration on "`date` >> sky130A_install.log
make[2]: Leaving directory '/home/supratim/caravel_tutorial/pdks/open_pdks/sky130'
make[2]: Entering directory '/home/supratim/caravel_tutorial/pdks/open_pdks/sky130'
set -f ; ../common/foundry_install.py -std_format -target /home/supratim/caravel_tutorial/pdks/open_pdks/sky130/sky130A -clean
Done removing staging area.
make[2]: Leaving directory '/home/supratim/caravel_tutorial/pdks/open_pdks/sky130'
make[1]: Leaving directory '/home/supratim/caravel_tutorial/caravel_example'
make: *** [Makefile:38: pdk-with-sram] Error 2

Supratim Das

02/05/2022, 11:11 AM

Error message output from magic script:

Can't write file named '(UNNAMED)'

Mitch Bailey

02/05/2022, 11:20 AM

@Supratim Das

UNNAMED

error is a known benign warning. That's not a problem. You're running

make pdk-with-sram

from a

caravel_user_project

clone, correct? Are you on

mpw-5a

Supratim Das

02/05/2022, 11:21 AM

yes, i am running from caravel_user_project and on mpw-5a

Mitch Bailey

02/05/2022, 11:25 AM

What version of magic?

magic -dnull -noc < /dev/null

Supratim Das

02/05/2022, 11:26 AM

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Magic 8.3 revision 265 - Compiled on Saturday 05 February 2022 12:35:23 PM IST.
Starting magic under Tcl interpreter
Using the terminal as the console.
Using NULL graphics device.
Processing system .magicrc file
Using technology "minimum", version 0.0

Mitch Bailey

02/05/2022, 11:26 AM

Let me check my log files.

Mitch Bailey

02/05/2022, 11:29 AM

Can you post your

pdks/open_pdks/sky130/sky130A_make.log

Mitch Bailey

02/05/2022, 11:49 AM

Looks like your log file is truncated. How's your disk space?

Supratim Das

02/05/2022, 11:50 AM

oops my bad, It got overritten by an on going run. will post a new one in a while

Mitch Bailey

02/05/2022, 11:51 AM

good luck!

Supratim Das

02/05/2022, 1:16 PM

it succeeded this time, turns out in my earlier run I used the -j option with make, and it failed with that due to some reason, without -j option it passed.

Matt Venn

02/05/2022, 2:39 PM

Can confirm Pdk build fails with -j

Marwan Abbas

02/05/2022, 4:27 PM

@Supratim Das @Mitch Bailey @Matt Venn These questions aren't really related to the main question and it's actually a very useful conversation for the community, so please for any unrelated questions start a new thread so that the whole community could benefit from it. Thank you!

👍 2

Marwan Abbas

02/05/2022, 4:29 PM

@User @User @User The -j flag with building the pdk actually corrupts the files, @User can comment on that

👍 1

Tim Edwards

02/05/2022, 6:50 PM

Working on the multithreaded build problem. Testing a solution now.

Tim Edwards

02/07/2022, 1:32 PM

@Marwan Abbas, @Supratim Das, @Mitch Bailey, @Matt Venn: The current version of open_pdks (as of yesterday afternoon) works cleanly with

make -jX

👍 1

🙌 2

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