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chipsalliance / rocket-chip

Rocket Chip Generator
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Compile using simulator other than VCS? #999

Closed iperryman-xeda closed 2 years ago

iperryman-xeda commented 7 years ago

I am trying to compile and run the project but do not have access to VCS. Has anyone tried compiling with any other simulators?

The issues I have been running into seem related to the version of the vpi_user.h file that is included in csrc/jtag_vpi.c file.

We are trying to compile the csrc files with g++ 

11:49:33 [iperryman@eng-05 vsim]$ g++ --version
g++ (Debian 4.9.2-10) 4.9.2

getting this error:

rocket-chip/csrc/jtag_vpi.c:290:2: error: invalid conversion from ‘void*’ to ‘PLI_INT32 (*)(PLI_BYTE8*) {aka int (*)(char*)}’ [-fpermissive]

The vpi_user.h file that is bundled with the simulator has this header indicating that is is from IEEE 1364 2005. Not sure if VCS is using a more modern version of that file.

Thanks, Ian

mwachs5 commented 7 years ago

The regressions run using Verilator, not VCS, so it does work with something other than VCS. If you aren't running a config that actually uses the JTAG VPI (no CONFIG = WithJtagDTM_... ), you could remove this from the flow.

I am working on a way to do even the WithJtagDTM_ with Verilator, but no ETA on that task completion.

iperryman-xeda commented 7 years ago

Thank you for the clarification. Is there any documentation on the RocketChip testing at the top level? Is a verilog simulator only required for the JTAG? Perhaps some block diagram illustrating the DUT and the test bench components. List of tests?

Thanks, Ian

sequencer commented 2 years ago

We do need documentation on the UT. Which is currently on going at a PLCT intern project. closing this for now, this can be moved to discussion in the future.