add RVFI CSRs tracing

[MarioOpenHWGroup]

Implementation of RVFI CSRs.

This supposes that the testbench binds a rvfi_unified_csr_if in the cs_registers.sv module.

[davideschiavone]

can you move this after the module declaration?

`include "prim_assert.sv"

module cve2_cs_registers #(
  parameter bit               DbgTriggerEn      = 0,
  parameter int unsigned      DbgHwBreakNum     = 1,
  parameter int unsigned      MHPMCounterNum    = 10,
  parameter int unsigned      MHPMCounterWidth  = 40,
  parameter bit               PMPEnable         = 0,
  parameter int unsigned      PMPGranularity    = 0,
  parameter int unsigned      PMPNumRegions     = 4,
  parameter bit               RV32E             = 0,
  parameter cve2_pkg::rv32m_e RV32M             = cve2_pkg::RV32MFast,
  parameter cve2_pkg::rv32b_e RV32B             = cve2_pkg::RV32BNone
) (
  // Clock and Reset
  input  logic                 clk_i,
  input  logic                 rst_ni,
....
 input  logic                 wfi_wait_i,                  // core waiting for interrupt
  input  logic                 div_wait_i                   // core waiting for divide
);

  import cve2_pkg::*;

[MarioOpenHWGroup]

Sure!

[ilamparithy01]

Hi I am started to use this comit, I a unable to compile the design , It is throwing error in cve2_cs_register
where traces is added
Error found while trying to resolve cross-module reference.
token 'clknrst_if'. Originating module 'cve2_cs_registers' like this

[MarioOpenHWGroup]

This has to be used with the new cv32e20-dv repo as this has the bind interfaces

[MikeOpenHWGroup]

See #271 for additional discussion on this point.

[ilamparithy01]

@MarioOpenHWGroup
I am not seeing anything in cv32e20 -dv , I am only seeing coming soon.
could help me out how to compile the design without error , I checked out this version.
I created allfile.txt with the help of cv32e20_manifest.flist and doing compile , do i need to add somthing to resolve the interface signals.

[ilamparithy01]

my initial requirement is to fetch the data and write and read some date from memory,
how we need to provide the address map
I am new to this that why I am asking .