multicore test case
diff --git a/verilog/dv/Makefile b/verilog/dv/Makefile index ca64f10..17cd90d 100644 --- a/verilog/dv/Makefile +++ b/verilog/dv/Makefile
@@ -19,7 +19,7 @@ .SUFFIXES: .SILENT: clean all -PATTERNS = wb_port risc_boot user_risc_boot user_uart user_uart1 user_qspi user_i2cm riscv_regress user_basic user_usb user_pwm user_timer user_uart_master uart_master +PATTERNS = wb_port risc_boot user_risc_boot user_uart user_uart1 user_qspi user_i2cm riscv_regress user_basic user_usb user_pwm user_timer user_uart_master uart_master user_mcore user_sram_exec all: ${PATTERNS} for i in ${PATTERNS}; do \
diff --git a/verilog/dv/firmware/common_bthread.c b/verilog/dv/firmware/common_bthread.c new file mode 100644 index 0000000..e5508c6 --- /dev/null +++ b/verilog/dv/firmware/common_bthread.c
@@ -0,0 +1,137 @@ +//======================================================================== +// common-bthread +//======================================================================== + +#include "common_bthread.h" + +//------------------------------------------------------------------------ +// Global data structures +//------------------------------------------------------------------------ + +spawn_func_ptr g_thread_spawn_func_ptrs[4]; +void* g_thread_spawn_func_args[4]; + +volatile int g_thread_flags[4] = {0,0,0,0}; + + +//------------------------------------------------------------------------ +// bthread_init +//------------------------------------------------------------------------ + +void bthread_init() +{ + int core_id = bthread_get_core_id(); + + // If it's core zero, fall through + + if ( core_id == 0 ) { + + for ( int i = 0; i < 4; i++ ) + g_thread_flags[i] = 0; + + // mark core zero to be 1. + + g_thread_flags[0] = 1; + return; + } + + else { + + // Core 1-3 will wait here in the worker loop + + while (1) { + + // Wait until woken up by core 0. We insert some extra nops here to + // avoid banging on the memory system too hard. + + while( g_thread_flags[core_id] == 0 ) { + __asm__ __volatile__ ( "nop;" + "nop;" + "nop;" + "nop;" + "nop;" + "nop;" + "nop;" + "nop;" + "nop;" + "nop;": : : "memory" ); + } + + // Execute the spawn function + + (*g_thread_spawn_func_ptrs[core_id]) + ( g_thread_spawn_func_args[core_id] ); + + // Unset the flag so the master core knows this work core is done. + + g_thread_flags[core_id] = 0; + + } + + } +} + + +//------------------------------------------------------------------------ +// bthread_spawn +//------------------------------------------------------------------------ +// Spawn a function to a given worker core (thread). Need to provide: +// +// thread_id : ID of the thread we are spawning to +// start_routine : Spawned function +// arg : A pointer to the argument. +// + +int bthread_spawn( int thread_id, void (*start_routine)(void*), void* arg ) +{ + int ncores = bthread_get_num_cores(); + + // If the master core spawns work onto itself then that is an error. + + if ( thread_id == 0 ) { + return -1; + } + + // If thread id is too large return an error + + if ( thread_id >= ncores || thread_id < 0 ) + return -1; + + // Check to see if the thread is already in use. If so, then return + // an error. + + if ( g_thread_flags[thread_id] ) + return -1; + + // Set function and argument pointer + + g_thread_spawn_func_args[thread_id] = arg; + g_thread_spawn_func_ptrs[thread_id] = start_routine; + + // Wake up worker thread + + g_thread_flags[thread_id] = 1; + + return 0; +} + + +//------------------------------------------------------------------------ +// bthread_join +//------------------------------------------------------------------------ +// Wait for the given thread to finish executing its work. + +int bthread_join( int thread_id ) +{ + // Thread id out of range, return an error. + + if( thread_id < 1 || thread_id >= 4 ) + return -1; + + // Wait until the given thread is no longer in use. + + while ( g_thread_flags[thread_id] ) + ; + + return 0; +}
diff --git a/verilog/dv/firmware/common_bthread.h b/verilog/dv/firmware/common_bthread.h new file mode 100644 index 0000000..dcadf07 --- /dev/null +++ b/verilog/dv/firmware/common_bthread.h
@@ -0,0 +1,107 @@ +//======================================================================== +// common-bthread +//======================================================================== +// We use a very simple "runtime" to parallelize our apps. We called it +// bthread because it is a set of bare minimum "threading" library +// functions to parallelize a program across multiple cores. +// +// All cores start from the main function. We need to call the +// bthread_init() function at the beginning of main(). Basically only +// core 0 can pass through the bthread_init function and continue +// executing. The rest of cores (if any) will be trapped in the +// bthread_init() function, waiting in a loop we call the worker loop. In +// each iteration of the worker loop, a core will check if the flag is +// set by core 0. If it is, then it will execute the function core 0 +// stored in a shared location, then reset its flag. Cores other than +// core 0 will stay in the worker loop indefinitely. +// +// We call core 0 the master core, and we call the other cores the worker +// cores. The master core "spawns work" on a worker core using the +// bthread_spawn function. The master core needs the function pointer, +// the argument pointer, and a worker core's ID. It stores the function +// pointer and the argument pointer to a global location, then sets the +// flag for the given worker core. +// +// The master core can wait for a worker core to finish by using the +// bthread_join function. It waits for a designated worker core until the +// worker core finishes executing its function (if any) then returns. + +#ifndef COMMON_BTHREAD_H +#define COMMON_BTHREAD_H + +//------------------------------------------------------------------------ +// Global data structures +//------------------------------------------------------------------------ + +typedef void (*spawn_func_ptr)(void*); + + +extern spawn_func_ptr g_thread_spawn_func_ptrs[4]; +extern void* g_thread_spawn_func_args[4]; + +volatile extern int g_thread_flags[4]; + + +//------------------------------------------------------------------------ +// bthread_get_num_cores +//------------------------------------------------------------------------ +// Returns the number of cores. + +inline +int bthread_get_num_cores() +{ + int num_cores; + asm( "csrr %0, 0xFC1;" + : "=r"(num_cores) + : + ); + return num_cores; +} + + +//------------------------------------------------------------------------ +// bthread_get_core_id +//------------------------------------------------------------------------ +// Returns the core ID. + +inline +int bthread_get_core_id() +{ + int core_id; + asm( "csrr %0, 0xF14;" + : "=r"(core_id) + : + ); + return core_id; +} + + +//------------------------------------------------------------------------ +// bthread_init +//------------------------------------------------------------------------ +// This function _MUST_ be called right at the beginning of the main(). +// It will only let core 0 pass through. All other cores will be trapped +// in a worker loop, waiting be woken up by the core 0 (bthread_spawn). + +void bthread_init(); + +//------------------------------------------------------------------------ +// bthread_spawn +//------------------------------------------------------------------------ +// Spawn a function to a given worker core (thread). Need to provide: +// +// thread_id : ID of the thread we are spawning to +// start_routine : Spawned function +// arg : A pointer to the argument. +// + +int bthread_spawn( int thread_id, void (*start_routine)(void*), void* arg ); + +//------------------------------------------------------------------------ +// bthread_join +//------------------------------------------------------------------------ +// Wait for the given thread to finish executing its work. + +int bthread_join( int thread_id ); + +#endif /* COMMON_BTHREAD_H */
diff --git a/verilog/dv/firmware/common_misc.h b/verilog/dv/firmware/common_misc.h new file mode 100644 index 0000000..8556c35 --- /dev/null +++ b/verilog/dv/firmware/common_misc.h
@@ -0,0 +1,97 @@ +//======================================================================== +// common-misc +//======================================================================== + +#ifndef COMMON_MISC_H +#define COMMON_MISC_H + +#include <stdio.h> +#include <stdlib.h> + +//------------------------------------------------------------------------ +// Typedefs +//------------------------------------------------------------------------ + +typedef unsigned char byte; +typedef unsigned int uint; + +//------------------------------------------------------------------------ +// exit +//------------------------------------------------------------------------ +// exit the program with the given status code + + +inline +void exit( int i ) +{ + int msg = 0x00010000 | i; + asm ( "csrw 0x7C0, %0;" :: "r"(msg) ); +} + + +//------------------------------------------------------------------------ +// test_fail +//------------------------------------------------------------------------ + + +inline +void test_fail( int index, int val, int ref ) +{ + int status = 0x00020001; + asm( "csrw 0x7C0, %0;" + "csrw 0x7C0, %1;" + "csrw 0x7C0, %2;" + "csrw 0x7C0, %3;" + : + : "r" (status), "r" (index), "r" (val), "r" (ref) + ); +} + + +//------------------------------------------------------------------------ +// test_pass +//------------------------------------------------------------------------ + + +inline +void test_pass() +{ + int status = 0x00020000; + asm( "csrw 0x7C0, %0;" + : + : "r" (status) + ); +} + +//------------------------------------------------------------------------ +// test_stats_on +//------------------------------------------------------------------------ + + +inline +void test_stats_on() +{ + int status = 1; + asm( "csrw 0x7C1, %0;" + : + : "r" (status) + ); +} + + +//------------------------------------------------------------------------ +// test_stats_off +//------------------------------------------------------------------------ + +inline +void test_stats_off() +{ + int status = 0; + asm( "csrw 0x7C1, %0;" + : + : "r" (status) + ); +} + +#endif /* COMMON_MISC_H */ +
diff --git a/verilog/dv/user_mcore/Makefile b/verilog/dv/user_mcore/Makefile new file mode 100644 index 0000000..a7d9f3f --- /dev/null +++ b/verilog/dv/user_mcore/Makefile
@@ -0,0 +1,91 @@ +# SPDX-FileCopyrightText: 2020 Efabless Corporation +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +# SPDX-License-Identifier: Apache-2.0 + + +# ---- Include Partitioned Makefiles ---- + +CONFIG = caravel_user_project + +####################################################################### +## Caravel Verilog for Integration Tests +####################################################################### + +DESIGNS?=../../.. + +export USER_PROJECT_VERILOG ?= $(DESIGNS)/verilog +## YIFIVE FIRMWARE +YIFIVE_FIRMWARE_PATH = $(USER_PROJECT_VERILOG)/dv/firmware +GCC64_PREFIX?=riscv64-unknown-elf + + +## Simulation mode: RTL/GL +SIM?=RTL +DUMP?=OFF +RISC_CORE?=15 + +### To Enable IVERILOG FST DUMP +export IVERILOG_DUMPER = fst + + +.SUFFIXES: + +PATTERN = user_mcore + +all: ${PATTERN:=.vcd} + + +vvp: ${PATTERN:=.vvp} + +%.vvp: %_tb.v + ${GCC64_PREFIX}-gcc -O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las -D__RVC_EXT -static -std=gnu99 -fno-common -fno-builtin-printf -DTCM=0 -Wa,-march=rv32imc -march=rv32imc -mabi=ilp32 -DFLAGS_STR=\""-O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las "\" -c -I./ -I$(YIFIVE_FIRMWARE_PATH) user_mcore.c -o user_mcore.o + ${GCC64_PREFIX}-gcc -O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las -D__RVC_EXT -static -std=gnu99 -fno-common -fno-builtin-printf -DTCM=0 -Wa,-march=rv32imc -march=rv32imc -mabi=ilp32 -DFLAGS_STR=\""-O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las "\" -c -I./ -I$(YIFIVE_FIRMWARE_PATH) $(YIFIVE_FIRMWARE_PATH)/common_bthread.c -o common_bthread.o + ${GCC64_PREFIX}-gcc -O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las -D__RVC_EXT -static -std=gnu99 -fno-common -fno-builtin-printf -DTCM=0 -Wa,-march=rv32imc -march=rv32imc -mabi=ilp32 -DFLAGS_STR=\""-O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las "\" -D__ASSEMBLY__=1 -c -I./ -I$(YIFIVE_FIRMWARE_PATH) $(YIFIVE_FIRMWARE_PATH)/crt.S -o crt.o + ${GCC64_PREFIX}-gcc -o user_mcore.elf -T $(YIFIVE_FIRMWARE_PATH)/link.ld user_mcore.o crt.o common_bthread.o -nostartfiles -nostdlib -lc -lgcc -march=rv32imc -mabi=ilp32 -N + ${GCC64_PREFIX}-objcopy -O verilog user_mcore.elf user_mcore.hex + ${GCC64_PREFIX}-objdump -D user_mcore.elf > user_mcore.dump + rm crt.o user_mcore.o +ifeq ($(SIM),RTL) + ifeq ($(DUMP),OFF) + iverilog -g2012 -DFUNCTIONAL -DSIM -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.rtl.$(CONFIG) \ + $< -o $@ + else + iverilog -g2012 -DWFDUMP -DFUNCTIONAL -DSIM -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.rtl.$(CONFIG) \ + $< -o $@ + endif +else + ifeq ($(DUMP),OFF) + iverilog -g2012 -DFUNCTIONAL -DUSE_POWER_PINS -DGL -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.gl.$(CONFIG) \ + $< -o $@ + else + iverilog -g2012 -DWFDUMP -DFUNCTIONAL -DUSE_POWER_PINS -DGL -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.gl.$(CONFIG) \ + $< -o $@ + endif +endif + +%.vcd: %.vvp + vvp $< +risc_core_id=$(RISC_CORE) + + +# ---- Clean ---- + +clean: + rm -f *.elf *.hex *.bin *.vvp *.vcd *.log *.o *.dump + +.PHONY: clean hex all
diff --git a/verilog/dv/user_mcore/user_mcore.c b/verilog/dv/user_mcore/user_mcore.c new file mode 100644 index 0000000..dc1899d --- /dev/null +++ b/verilog/dv/user_mcore/user_mcore.c
@@ -0,0 +1,176 @@ +/* + * SPDX-FileCopyrightText: 2020 Efabless Corporation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * SPDX-License-Identifier: Apache-2.0 + */ + + +#include "common_misc.h" +#include "common_bthread.h" + +#define SC_SIM_OUTPORT (0xf0000000) +#define uint32_t long +#define uint16_t int +#define size 10 + +#define reg_mprj_globl_reg0 (*(volatile uint32_t*)0x10020000) +#define reg_mprj_globl_reg1 (*(volatile uint32_t*)0x10020004) +#define reg_mprj_globl_reg2 (*(volatile uint32_t*)0x10020008) +#define reg_mprj_globl_reg3 (*(volatile uint32_t*)0x1002000C) +#define reg_mprj_globl_reg4 (*(volatile uint32_t*)0x10020010) +#define reg_mprj_globl_reg5 (*(volatile uint32_t*)0x10020014) +#define reg_mprj_globl_reg6 (*(volatile uint32_t*)0x10020018) +#define reg_mprj_globl_reg7 (*(volatile uint32_t*)0x1002001C) +#define reg_mprj_globl_reg8 (*(volatile uint32_t*)0x10020020) +#define reg_mprj_globl_reg9 (*(volatile uint32_t*)0x10020024) +#define reg_mprj_globl_reg10 (*(volatile uint32_t*)0x10020028) +#define reg_mprj_globl_reg11 (*(volatile uint32_t*)0x1002002C) +#define reg_mprj_globl_reg12 (*(volatile uint32_t*)0x10020030) +#define reg_mprj_globl_reg13 (*(volatile uint32_t*)0x10020034) +#define reg_mprj_globl_reg14 (*(volatile uint32_t*)0x10020038) +#define reg_mprj_globl_reg15 (*(volatile uint32_t*)0x1002003C) +#define reg_mprj_globl_reg16 (*(volatile uint32_t*)0x10020040) +#define reg_mprj_globl_reg17 (*(volatile uint32_t*)0x10020044) +#define reg_mprj_globl_reg18 (*(volatile uint32_t*)0x10020048) +#define reg_mprj_globl_reg19 (*(volatile uint32_t*)0x1002004C) +#define reg_mprj_globl_reg20 (*(volatile uint32_t*)0x10020050) +#define reg_mprj_globl_reg21 (*(volatile uint32_t*)0x10020054) +#define reg_mprj_globl_reg22 (*(volatile uint32_t*)0x10020058) +#define reg_mprj_globl_reg23 (*(volatile uint32_t*)0x1002005C) +#define reg_mprj_globl_reg24 (*(volatile uint32_t*)0x10020060) +#define reg_mprj_globl_reg25 (*(volatile uint32_t*)0x10020064) +#define reg_mprj_globl_reg26 (*(volatile uint32_t*)0x10020068) +#define reg_mprj_globl_reg27 (*(volatile uint32_t*)0x1002006C) +// ------------------------------------------------------------------------- +// Multi-core test, Two Array is filled with below data, destination hold sum +// source result remark +// src0 src1 dest +// 0x0000 0x00000000 0x00000000 updated by core-0 +// 0x1111 0x11110000 0x11111111 updated by core-0 +// 0x2222 0x22220000 0x22222222 updated by core-0 +// 0x3333 0x33330000 0x33333333 updated by core-0 +// 0x4444 0x44440000 0x44444444 updated by core-1 +// 0x5555 0x55550000 0x55555555 updated by core-1 +// 0x6666 0x66660000 0x66666666 updated by core-1 +// 0x7777 0x77770000 0x77777777 updated by core-1 +// +// 0x8888 0x88880000 0x88888888 updated by core-2 +// 0x9999 0x99990000 0x99999999 updated by core-2 +// 0xAAAA 0xAAAA0000 0xAAAAAAAA updated by core-2 +// 0xBBBB 0xBBBB0000 0xBBBBBBBB updated by core-2 +// 0xCCCC 0xCCCC0000 0xCCCCCCCC updated by core-3 +// 0xDDDD 0xDDDD0000 0xDDDDDDDD updated by core-3 +// 0xEEEE 0xEEEE0000 0xEEEEEEEE updated by core-3 +// 0xFFFF 0xFFFF0000 0xFFFFFFFF updated by core-3 +// +// ------------------------------------------------------------------------- + +typedef struct { + int* dest; // pointer to dest array + int* src0; // pointer to src0 array + int* src1; // pointer to src1 array + int begin; // first element this core should process + int end; // (one past) last element this core should process +} arg_t; + + +void vvadd_mt(void* arg_vptr ) + { + + // Cast void* to argument pointer. + arg_t* arg_ptr = (arg_t*) arg_vptr; + // Create local variables for each field of the argument structure. + int* dest = arg_ptr->dest; + int* src0 = arg_ptr->src0; + int* src1 = arg_ptr->src1; + int begin = arg_ptr->begin; + int end = arg_ptr->end; + + // Do the actual work. + for ( int i = begin; i < end; i++ ) { + dest[i] = src0[i] + src1[i]; + } + + } + + #define buf_size 16 + + int main( int argc, char* argv[] ) + { + + int dest[buf_size]; + int src0[buf_size]; + int src1[buf_size]; + char test_pass = 0x1; + + for ( int i = 0; i < buf_size; i++ ) { + src0[i] = 0x1111 * (i); + src1[i] = 0x11110000 * (i); + } + + // Create two argument structures that include the array pointers and + // what elements each core should process. + arg_t arg0 = { dest, src0, src1, 0, buf_size/4 }; + arg_t arg1 = { dest, src0, src1, buf_size/4, buf_size/2 }; + arg_t arg2 = { dest, src0, src1, buf_size/2, (3*buf_size)/4 }; + arg_t arg3 = { dest, src0, src1, (3*buf_size)/4, buf_size }; + + reg_mprj_globl_reg22 = 0x11223344; // Sig-1 + // Initialize bare threads (bthread). + bthread_init(); + + + reg_mprj_globl_reg23 = 0x22334455; // Sig-2 + // Start counting stats. + //test_stats_on(); + + + // Spawn work onto core 1 + bthread_spawn( 1, &vvadd_mt, &arg1 ); + bthread_spawn( 2, &vvadd_mt, &arg2 ); + bthread_spawn( 3, &vvadd_mt, &arg3 ); + + reg_mprj_globl_reg24 = 0x33445566; // Sig-3 + // Have core 0 also do some work. + vvadd_mt(&arg0); + + reg_mprj_globl_reg25 = 0x44556677; // Sig-4 + // Wait for core 1 to finish. + bthread_join(1); + bthread_join(2); + bthread_join(3); + + + // Stop counting stats + //test_stats_off(); + reg_mprj_globl_reg26 = 0x55667788; // sig-5 + + // Core 0 will verify the results. + if ( bthread_get_core_id() == 0 ) { + + // Check the Expected Data + for ( int i = 0; i < buf_size; i++ ) { + if(dest[i] != (src0[i] + src1[i])) + test_pass &= 0; + } + if(test_pass == 0x1) { + reg_mprj_globl_reg27 = 0x66778899; // sig-6 + } + + } + + return 0; + } + +
diff --git a/verilog/dv/user_mcore/user_mcore_tb.v b/verilog/dv/user_mcore/user_mcore_tb.v new file mode 100644 index 0000000..797002f --- /dev/null +++ b/verilog/dv/user_mcore/user_mcore_tb.v
@@ -0,0 +1,424 @@ +//////////////////////////////////////////////////////////////////////////// +// SPDX-FileCopyrightText: 2021 , Dinesh Annayya +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// SPDX-License-Identifier: Apache-2.0 +// SPDX-FileContributor: Modified by Dinesh Annayya <dinesha@opencores.org> +////////////////////////////////////////////////////////////////////// +//// //// +//// Standalone User validation Test bench //// +//// //// +//// This file is part of the riscduino cores project //// +//// //// +//// Description //// +//// This is a standalone test bench to validate the //// +//// Digital core multi-core behaviour. //// +//// //// +//// To Do: //// +//// nothing //// +//// //// +//// Author(s): //// +//// - Dinesh Annayya, dinesha@opencores.org //// +//// //// +//// Revision : //// +//// 0.1 - 16th Feb 2021, Dinesh A //// +//// //// +////////////////////////////////////////////////////////////////////// +//// //// +//// Copyright (C) 2000 Authors and OPENCORES.ORG //// +//// //// +//// This source file may be used and distributed without //// +//// restriction provided that this copyright statement is not //// +//// removed from the file and that any derivative work contains //// +//// the original copyright notice and the associated disclaimer. //// +//// //// +//// This source file is free software; you can redistribute it //// +//// and/or modify it under the terms of the GNU Lesser General //// +//// Public License as published by the Free Software Foundation; //// +//// either version 2.1 of the License, or (at your option) any //// +//// later version. //// +//// //// +//// This source is distributed in the hope that it will be //// +//// useful, but WITHOUT ANY WARRANTY; without even the implied //// +//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //// +//// PURPOSE. See the GNU Lesser General Public License for more //// +//// details. //// +//// //// +//// You should have received a copy of the GNU Lesser General //// +//// Public License along with this source; if not, download it //// +//// from http://www.opencores.org/lgpl.shtml //// +//// //// +////////////////////////////////////////////////////////////////////// + +`default_nettype wire + +`timescale 1 ns / 1 ns + +`include "sram_macros/sky130_sram_2kbyte_1rw1r_32x512_8.v" +module user_mcore_tb; + reg clock; + reg wb_rst_i; + reg power1, power2; + reg power3, power4; + + reg wbd_ext_cyc_i; // strobe/request + reg wbd_ext_stb_i; // strobe/request + reg [31:0] wbd_ext_adr_i; // address + reg wbd_ext_we_i; // write + reg [31:0] wbd_ext_dat_i; // data output + reg [3:0] wbd_ext_sel_i; // byte enable + + wire [31:0] wbd_ext_dat_o; // data input + wire wbd_ext_ack_o; // acknowlegement + wire wbd_ext_err_o; // error + + // User I/O + wire [37:0] io_oeb; + wire [37:0] io_out; + wire [37:0] io_in; + + wire gpio; + wire [37:0] mprj_io; + wire [7:0] mprj_io_0; + reg test_fail; + reg [31:0] read_data; + integer d_risc_id; + + + + // External clock is used by default. Make this artificially fast for the + // simulation. Normally this would be a slow clock and the digital PLL + // would be the fast clock. + + always #12.5 clock <= (clock === 1'b0); + + initial begin + clock = 0; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + end + + `ifdef WFDUMP + initial begin + $dumpfile("simx.vcd"); + $dumpvars(1, user_mcore_tb); + $dumpvars(1, user_mcore_tb.u_top); + $dumpvars(0, user_mcore_tb.u_top.u_riscv_top); + end + `endif + + initial begin + + $value$plusargs("risc_core_id=%d", d_risc_id); + + #200; // Wait for reset removal + repeat (10) @(posedge clock); + $display("Monitor: Standalone User Risc Boot Test Started"); + + // Remove Wb Reset + wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_GLBL_CFG,'h1); + + repeat (2) @(posedge clock); + #1; + // Remove all the reset + if(d_risc_id == 0) begin + $display("STATUS: Working with Risc core 0"); + wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'h11F); + end else if(d_risc_id == 1) begin + $display("STATUS: Working with Risc core 1"); + wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'h21F); + end else if(d_risc_id == 2) begin + $display("STATUS: Working with Risc core 2"); + wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'h41F); + end else if(d_risc_id == 3) begin + $display("STATUS: Working with Risc core 2"); + wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'h81F); + end else begin + $display("STATUS: Working with Both core Risc core 0/1/2/3 "); + wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'hF1F); + end + + + // Repeat cycles of 1000 clock edges as needed to complete testbench + repeat (26) begin + repeat (1000) @(posedge clock); + // $display("+1000 cycles"); + end + + + $display("Monitor: Reading Back the expected value"); + // User RISC core expect to write these value in global + // register, read back and decide on pass fail + // 0x30000018 = 0x11223344; + // 0x3000001C = 0x22334455; + // 0x30000020 = 0x33445566; + // 0x30000024 = 0x44556677; + // 0x30000028 = 0x55667788; + // 0x3000002C = 0x66778899; + + test_fail = 0; + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_1,read_data,32'h11223344); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_2,read_data,32'h22334455); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_3,read_data,32'h33445566); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_4,read_data,32'h44556677); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_5,read_data,32'h55667788); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_6,read_data,32'h66778899); + + + + $display("###################################################"); + if(test_fail == 0) begin + `ifdef GL + $display("Monitor: Standalone User Risc Boot (GL) Passed"); + `else + $display("Monitor: Standalone User Risc Boot (RTL) Passed"); + `endif + end else begin + `ifdef GL + $display("Monitor: Standalone User Risc Boot (GL) Failed"); + `else + $display("Monitor: Standalone User Risc Boot (RTL) Failed"); + `endif + end + $display("###################################################"); + $finish; + end + + initial begin + wb_rst_i <= 1'b1; + #100; + wb_rst_i <= 1'b0; // Release reset + end +wire USER_VDD1V8 = 1'b1; +wire VSS = 1'b0; + +user_project_wrapper u_top( +`ifdef USE_POWER_PINS + .vccd1(USER_VDD1V8), // User area 1 1.8V supply + .vssd1(VSS), // User area 1 digital ground +`endif + .wb_clk_i (clock), // System clock + .user_clock2 (1'b1), // Real-time clock + .wb_rst_i (wb_rst_i), // Regular Reset signal + + .wbs_cyc_i (wbd_ext_cyc_i), // strobe/request + .wbs_stb_i (wbd_ext_stb_i), // strobe/request + .wbs_adr_i (wbd_ext_adr_i), // address + .wbs_we_i (wbd_ext_we_i), // write + .wbs_dat_i (wbd_ext_dat_i), // data output + .wbs_sel_i (wbd_ext_sel_i), // byte enable + + .wbs_dat_o (wbd_ext_dat_o), // data input + .wbs_ack_o (wbd_ext_ack_o), // acknowlegement + + + // Logic Analyzer Signals + .la_data_in ('1) , + .la_data_out (), + .la_oenb ('0), + + + // IOs + .io_in (io_in) , + .io_out (io_out) , + .io_oeb (io_oeb) , + + .user_irq () + +); + +`ifndef GL // Drive Power for Hold Fix Buf + // All standard cell need power hook-up for functionality work + initial begin + + end +`endif + +//------------------------------------------------------ +// Integrate the Serial flash with qurd support to +// user core using the gpio pads +// ---------------------------------------------------- + + wire flash_clk = io_out[24]; + wire flash_csb = io_out[25]; + // Creating Pad Delay + wire #1 io_oeb_29 = io_oeb[29]; + wire #1 io_oeb_30 = io_oeb[30]; + wire #1 io_oeb_31 = io_oeb[31]; + wire #1 io_oeb_32 = io_oeb[32]; + tri #1 flash_io0 = (io_oeb_29== 1'b0) ? io_out[29] : 1'bz; + tri #1 flash_io1 = (io_oeb_30== 1'b0) ? io_out[30] : 1'bz; + tri #1 flash_io2 = (io_oeb_31== 1'b0) ? io_out[31] : 1'bz; + tri #1 flash_io3 = (io_oeb_32== 1'b0) ? io_out[32] : 1'bz; + + assign io_in[29] = flash_io0; + assign io_in[30] = flash_io1; + assign io_in[31] = flash_io2; + assign io_in[32] = flash_io3; + + // Quard flash + s25fl256s #(.mem_file_name("user_mcore.hex"), + .otp_file_name("none"), + .TimingModel("S25FL512SAGMFI010_F_30pF")) + u_spi_flash_256mb ( + // Data Inputs/Outputs + .SI (flash_io0), + .SO (flash_io1), + // Controls + .SCK (flash_clk), + .CSNeg (flash_csb), + .WPNeg (flash_io2), + .HOLDNeg (flash_io3), + .RSTNeg (!wb_rst_i) + + ); + + + + +task wb_user_core_write; +input [31:0] address; +input [31:0] data; +begin + repeat (1) @(posedge clock); + #1; + wbd_ext_adr_i =address; // address + wbd_ext_we_i ='h1; // write + wbd_ext_dat_i =data; // data output + wbd_ext_sel_i ='hF; // byte enable + wbd_ext_cyc_i ='h1; // strobe/request + wbd_ext_stb_i ='h1; // strobe/request + wait(wbd_ext_ack_o == 1); + repeat (1) @(posedge clock); + #1; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + $display("DEBUG WB USER ACCESS WRITE Address : %x, Data : %x",address,data); + repeat (2) @(posedge clock); +end +endtask + +task wb_user_core_read; +input [31:0] address; +output [31:0] data; +reg [31:0] data; +begin + repeat (1) @(posedge clock); + #1; + wbd_ext_adr_i =address; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='0; // data output + wbd_ext_sel_i ='hF; // byte enable + wbd_ext_cyc_i ='h1; // strobe/request + wbd_ext_stb_i ='h1; // strobe/request + wait(wbd_ext_ack_o == 1); + repeat (1) @(negedge clock); + data = wbd_ext_dat_o; + repeat (1) @(posedge clock); + #1; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + $display("DEBUG WB USER ACCESS READ Address : %x, Data : %x",address,data); + repeat (2) @(posedge clock); +end +endtask + +task wb_user_core_read_check; +input [31:0] address; +output [31:0] data; +input [31:0] cmp_data; +reg [31:0] data; +begin + repeat (1) @(posedge clock); + #1; + wbd_ext_adr_i =address; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='0; // data output + wbd_ext_sel_i ='hF; // byte enable + wbd_ext_cyc_i ='h1; // strobe/request + wbd_ext_stb_i ='h1; // strobe/request + wait(wbd_ext_ack_o == 1); + repeat (1) @(negedge clock); + data = wbd_ext_dat_o; + repeat (1) @(posedge clock); + #1; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + if(data !== cmp_data) begin + $display("ERROR : WB USER ACCESS READ Address : 0x%x, Exd: 0x%x Rxd: 0x%x ",address,cmp_data,data); + test_fail = 1; + end else begin + $display("STATUS: WB USER ACCESS READ Address : 0x%x, Data : 0x%x",address,data); + end + repeat (2) @(posedge clock); +end +endtask + +`ifdef GL + +wire wbd_spi_stb_i = u_top.u_qspi_master.wbd_stb_i; +wire wbd_spi_ack_o = u_top.u_qspi_master.wbd_ack_o; +wire wbd_spi_we_i = u_top.u_qspi_master.wbd_we_i; +wire [31:0] wbd_spi_adr_i = u_top.u_qspi_master.wbd_adr_i; +wire [31:0] wbd_spi_dat_i = u_top.u_qspi_master.wbd_dat_i; +wire [31:0] wbd_spi_dat_o = u_top.u_qspi_master.wbd_dat_o; +wire [3:0] wbd_spi_sel_i = u_top.u_qspi_master.wbd_sel_i; + +wire wbd_uart_stb_i = u_top.u_uart_i2c_usb_spi.reg_cs; +wire wbd_uart_ack_o = u_top.u_uart_i2c_usb_spi.reg_ack; +wire wbd_uart_we_i = u_top.u_uart_i2c_usb_spi.reg_wr; +wire [8:0] wbd_uart_adr_i = u_top.u_uart_i2c_usb_spi.reg_addr; +wire [7:0] wbd_uart_dat_i = u_top.u_uart_i2c_usb_spi.reg_wdata; +wire [7:0] wbd_uart_dat_o = u_top.u_uart_i2c_usb_spi.reg_rdata; +wire wbd_uart_sel_i = u_top.u_uart_i2c_usb_spi.reg_be; + +`endif + +/** +`ifdef GL +//----------------------------------------------------------------------------- +// RISC IMEM amd DMEM Monitoring TASK +//----------------------------------------------------------------------------- + +`define RISC_CORE user_uart_tb.u_top.u_core.u_riscv_top + +always@(posedge `RISC_CORE.wb_clk) begin + if(`RISC_CORE.wbd_imem_ack_i) + $display("RISCV-DEBUG => IMEM ADDRESS: %x Read Data : %x", `RISC_CORE.wbd_imem_adr_o,`RISC_CORE.wbd_imem_dat_i); + if(`RISC_CORE.wbd_dmem_ack_i && `RISC_CORE.wbd_dmem_we_o) + $display("RISCV-DEBUG => DMEM ADDRESS: %x Write Data: %x Resonse: %x", `RISC_CORE.wbd_dmem_adr_o,`RISC_CORE.wbd_dmem_dat_o); + if(`RISC_CORE.wbd_dmem_ack_i && !`RISC_CORE.wbd_dmem_we_o) + $display("RISCV-DEBUG => DMEM ADDRESS: %x READ Data : %x Resonse: %x", `RISC_CORE.wbd_dmem_adr_o,`RISC_CORE.wbd_dmem_dat_i); +end + +`endif +**/ +endmodule +`include "s25fl256s.sv" +`default_nettype wire
diff --git a/verilog/dv/user_sram_exec/Makefile b/verilog/dv/user_sram_exec/Makefile new file mode 100644 index 0000000..b0f31fc --- /dev/null +++ b/verilog/dv/user_sram_exec/Makefile
@@ -0,0 +1,90 @@ +# SPDX-FileCopyrightText: 2020 Efabless Corporation +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. +# +# SPDX-License-Identifier: Apache-2.0 + + +# ---- Include Partitioned Makefiles ---- + +CONFIG = caravel_user_project + +####################################################################### +## Caravel Verilog for Integration Tests +####################################################################### + +DESIGNS?=../../.. + +export USER_PROJECT_VERILOG ?= $(DESIGNS)/verilog +## YIFIVE FIRMWARE +YIFIVE_FIRMWARE_PATH = $(USER_PROJECT_VERILOG)/dv/firmware +GCC64_PREFIX?=riscv64-unknown-elf + + +## Simulation mode: RTL/GL +SIM?=RTL +DUMP?=OFF +RISC_CORE?=0 + +### To Enable IVERILOG FST DUMP +export IVERILOG_DUMPER = fst + + +.SUFFIXES: + +PATTERN = user_sram_exec + +all: ${PATTERN:=.vcd} + + +vvp: ${PATTERN:=.vvp} + +%.vvp: %_tb.v + ${GCC64_PREFIX}-gcc -O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las -D__RVC_EXT -static -std=gnu99 -fno-common -fno-builtin-printf -DTCM=0 -Wa,-march=rv32imc -march=rv32imc -mabi=ilp32 -DFLAGS_STR=\""-O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las "\" -c -I./ -I$(YIFIVE_FIRMWARE_PATH) user_sram_exec.c -o user_sram_exec.o + ${GCC64_PREFIX}-gcc -O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las -D__RVC_EXT -static -std=gnu99 -fno-common -fno-builtin-printf -DTCM=0 -Wa,-march=rv32imc -march=rv32imc -mabi=ilp32 -DFLAGS_STR=\""-O2 -funroll-loops -fpeel-loops -fgcse-sm -fgcse-las "\" -D__ASSEMBLY__=1 -c -I./ -I$(YIFIVE_FIRMWARE_PATH) $(YIFIVE_FIRMWARE_PATH)/crt.S -o crt.o + ${GCC64_PREFIX}-gcc -o user_sram_exec.elf -T $(YIFIVE_FIRMWARE_PATH)/link.ld user_sram_exec.o crt.o -nostartfiles -nostdlib -lc -lgcc -march=rv32imc -mabi=ilp32 -N + ${GCC64_PREFIX}-objcopy -O verilog user_sram_exec.elf user_sram_exec.hex + ${GCC64_PREFIX}-objdump -D user_sram_exec.elf > user_sram_exec.dump + rm crt.o user_sram_exec.o +ifeq ($(SIM),RTL) + ifeq ($(DUMP),OFF) + iverilog -g2012 -DFUNCTIONAL -DSIM -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.rtl.$(CONFIG) \ + $< -o $@ + else + iverilog -g2012 -DWFDUMP -DFUNCTIONAL -DSIM -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.rtl.$(CONFIG) \ + $< -o $@ + endif +else + ifeq ($(DUMP),OFF) + iverilog -g2012 -DFUNCTIONAL -DUSE_POWER_PINS -DGL -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.gl.$(CONFIG) \ + $< -o $@ + else + iverilog -g2012 -DWFDUMP -DFUNCTIONAL -DUSE_POWER_PINS -DGL -I $(PDK_PATH) \ + -f$(USER_PROJECT_VERILOG)/includes/includes.gl.$(CONFIG) \ + $< -o $@ + endif +endif + +%.vcd: %.vvp + vvp $< +risc_core_id=$(RISC_CORE) + + +# ---- Clean ---- + +clean: + rm -f *.elf *.hex *.bin *.vvp *.vcd *.log *.dump + +.PHONY: clean hex all
diff --git a/verilog/dv/user_sram_exec/user_sram_exec.c b/verilog/dv/user_sram_exec/user_sram_exec.c new file mode 100644 index 0000000..62546a8 --- /dev/null +++ b/verilog/dv/user_sram_exec/user_sram_exec.c
@@ -0,0 +1,88 @@ +/* + * SPDX-FileCopyrightText: 2020 Efabless Corporation + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * SPDX-License-Identifier: Apache-2.0 + */ + + +#define SC_SIM_OUTPORT (0xf0000000) +#define uint32_t long +#define uint16_t int + +#define reg_mprj_globl_reg0 (*(volatile uint32_t*)0x10020000) +#define reg_mprj_globl_reg1 (*(volatile uint32_t*)0x10020004) +#define reg_mprj_globl_reg2 (*(volatile uint32_t*)0x10020008) +#define reg_mprj_globl_reg3 (*(volatile uint32_t*)0x1002000C) +#define reg_mprj_globl_reg4 (*(volatile uint32_t*)0x10020010) +#define reg_mprj_globl_reg5 (*(volatile uint32_t*)0x10020014) +#define reg_mprj_globl_reg6 (*(volatile uint32_t*)0x10020018) +#define reg_mprj_globl_reg7 (*(volatile uint32_t*)0x1002001C) +#define reg_mprj_globl_reg8 (*(volatile uint32_t*)0x10020020) +#define reg_mprj_globl_reg9 (*(volatile uint32_t*)0x10020024) +#define reg_mprj_globl_reg10 (*(volatile uint32_t*)0x10020028) +#define reg_mprj_globl_reg11 (*(volatile uint32_t*)0x1002002C) +#define reg_mprj_globl_reg12 (*(volatile uint32_t*)0x10020030) +#define reg_mprj_globl_reg13 (*(volatile uint32_t*)0x10020034) +#define reg_mprj_globl_reg14 (*(volatile uint32_t*)0x10020038) +#define reg_mprj_globl_reg15 (*(volatile uint32_t*)0x1002003C) +#define reg_mprj_globl_reg16 (*(volatile uint32_t*)0x10020040) +#define reg_mprj_globl_reg17 (*(volatile uint32_t*)0x10020044) +#define reg_mprj_globl_reg18 (*(volatile uint32_t*)0x10020048) +#define reg_mprj_globl_reg19 (*(volatile uint32_t*)0x1002004C) +#define reg_mprj_globl_reg20 (*(volatile uint32_t*)0x10020050) +#define reg_mprj_globl_reg21 (*(volatile uint32_t*)0x10020054) +#define reg_mprj_globl_reg22 (*(volatile uint32_t*)0x10020058) +#define reg_mprj_globl_reg23 (*(volatile uint32_t*)0x1002005C) +#define reg_mprj_globl_reg24 (*(volatile uint32_t*)0x10020060) +#define reg_mprj_globl_reg25 (*(volatile uint32_t*)0x10020064) +#define reg_mprj_globl_reg26 (*(volatile uint32_t*)0x10020068) +#define reg_mprj_globl_reg27 (*(volatile uint32_t*)0x1002006C) +// ------------------------------------------------------------------------- +// Test copying code into SRAM and running it from there. +// ------------------------------------------------------------------------- + +void test_function() +{ + reg_mprj_globl_reg24 = 0x33445566; // Sig-3 + reg_mprj_globl_reg25 = 0x44556677; // Sig-4 + + return; +} + +void main() +{ + uint16_t func[&main - &test_function]; + uint16_t *src_ptr; + uint16_t *dst_ptr; + + + src_ptr = &test_function; + dst_ptr = func; + + reg_mprj_globl_reg22 = 0x11223344; // Sig-1 + while (src_ptr < &main) { + *(dst_ptr++) = *(src_ptr++); + } + + // Call the routine in SRAM + reg_mprj_globl_reg23 = 0x22334455; // Sig-2 + + ((void(*)())func)(); + + reg_mprj_globl_reg26 = 0x55667788; + reg_mprj_globl_reg27 = 0x66778899; + + // Signal end of test +} +
diff --git a/verilog/dv/user_sram_exec/user_sram_exec_tb.v b/verilog/dv/user_sram_exec/user_sram_exec_tb.v new file mode 100644 index 0000000..2aaad02 --- /dev/null +++ b/verilog/dv/user_sram_exec/user_sram_exec_tb.v
@@ -0,0 +1,415 @@ +//////////////////////////////////////////////////////////////////////////// +// SPDX-FileCopyrightText: 2021 , Dinesh Annayya +// +// Licensed under the Apache License, Version 2.0 (the "License"); +// you may not use this file except in compliance with the License. +// You may obtain a copy of the License at +// +// http://www.apache.org/licenses/LICENSE-2.0 +// +// Unless required by applicable law or agreed to in writing, software +// distributed under the License is distributed on an "AS IS" BASIS, +// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +// See the License for the specific language governing permissions and +// limitations under the License. +// SPDX-License-Identifier: Apache-2.0 +// SPDX-FileContributor: Modified by Dinesh Annayya <dinesha@opencores.org> +////////////////////////////////////////////////////////////////////// +//// //// +//// Standalone User validation Test bench //// +//// //// +//// This file is part of the Riscduino cores project //// +//// //// +//// Description //// +//// This is a standalone test bench to validate the //// +//// Digital core with Risc core executing code from TCM/SRAM. //// +//// //// +//// To Do: //// +//// nothing //// +//// //// +//// Author(s): //// +//// - Dinesh Annayya, dinesha@opencores.org //// +//// //// +//// Revision : //// +//// 0.1 - 16th Feb 2021, Dinesh A //// +//// //// +////////////////////////////////////////////////////////////////////// +//// //// +//// Copyright (C) 2000 Authors and OPENCORES.ORG //// +//// //// +//// This source file may be used and distributed without //// +//// restriction provided that this copyright statement is not //// +//// removed from the file and that any derivative work contains //// +//// the original copyright notice and the associated disclaimer. //// +//// //// +//// This source file is free software; you can redistribute it //// +//// and/or modify it under the terms of the GNU Lesser General //// +//// Public License as published by the Free Software Foundation; //// +//// either version 2.1 of the License, or (at your option) any //// +//// later version. //// +//// //// +//// This source is distributed in the hope that it will be //// +//// useful, but WITHOUT ANY WARRANTY; without even the implied //// +//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR //// +//// PURPOSE. See the GNU Lesser General Public License for more //// +//// details. //// +//// //// +//// You should have received a copy of the GNU Lesser General //// +//// Public License along with this source; if not, download it //// +//// from http://www.opencores.org/lgpl.shtml //// +//// //// +////////////////////////////////////////////////////////////////////// + +`default_nettype wire + +`timescale 1 ns / 1 ns + +`include "sram_macros/sky130_sram_2kbyte_1rw1r_32x512_8.v" +module user_sram_exec_tb; + reg clock; + reg wb_rst_i; + reg power1, power2; + reg power3, power4; + + reg wbd_ext_cyc_i; // strobe/request + reg wbd_ext_stb_i; // strobe/request + reg [31:0] wbd_ext_adr_i; // address + reg wbd_ext_we_i; // write + reg [31:0] wbd_ext_dat_i; // data output + reg [3:0] wbd_ext_sel_i; // byte enable + + wire [31:0] wbd_ext_dat_o; // data input + wire wbd_ext_ack_o; // acknowlegement + wire wbd_ext_err_o; // error + + // User I/O + wire [37:0] io_oeb; + wire [37:0] io_out; + wire [37:0] io_in; + + wire gpio; + wire [37:0] mprj_io; + wire [7:0] mprj_io_0; + reg test_fail; + reg [31:0] read_data; + integer d_risc_id; + + + + // External clock is used by default. Make this artificially fast for the + // simulation. Normally this would be a slow clock and the digital PLL + // would be the fast clock. + + always #12.5 clock <= (clock === 1'b0); + + initial begin + clock = 0; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + end + + `ifdef WFDUMP + initial begin + $dumpfile("simx.vcd"); + $dumpvars(1, user_sram_exec_tb); + $dumpvars(1, user_sram_exec_tb.u_top); + $dumpvars(0, user_sram_exec_tb.u_top.u_riscv_top); + end + `endif + + initial begin + + $value$plusargs("risc_core_id=%d", d_risc_id); + + #200; // Wait for reset removal + repeat (10) @(posedge clock); + $display("Monitor: Standalone User Risc Boot Test Started"); + + // Remove Wb Reset + wb_user_core_write(`ADDR_SPACE_WBHOST+`WBHOST_GLBL_CFG,'h1); + + repeat (2) @(posedge clock); + #1; + // Remove all the reset + if(d_risc_id == 0) begin + $display("STATUS: Working with Risc core 0"); + wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'h11F); + end else begin + $display("STATUS: Working with Risc core 1"); + wb_user_core_write(`ADDR_SPACE_PINMUX+`PINMUX_GBL_CFG0,'h21F); + end + + + // Repeat cycles of 1000 clock edges as needed to complete testbench + repeat (30) begin + repeat (1000) @(posedge clock); + // $display("+1000 cycles"); + end + + + $display("Monitor: Reading Back the expected value"); + // User RISC core expect to write these value in global + // register, read back and decide on pass fail + // 0x30000018 = 0x11223344; + // 0x3000001C = 0x22334455; + // 0x30000020 = 0x33445566; + // 0x30000024 = 0x44556677; + // 0x30000028 = 0x55667788; + // 0x3000002C = 0x66778899; + + test_fail = 0; + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_1,read_data,32'h11223344); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_2,read_data,32'h22334455); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_3,read_data,32'h33445566); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_4,read_data,32'h44556677); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_5,read_data,32'h55667788); + wb_user_core_read_check(`ADDR_SPACE_PINMUX+`PINMUX_SOFT_REG_6,read_data,32'h66778899); + + + + $display("###################################################"); + if(test_fail == 0) begin + `ifdef GL + $display("Monitor: Standalone User Risc Boot (GL) Passed"); + `else + $display("Monitor: Standalone User Risc Boot (RTL) Passed"); + `endif + end else begin + `ifdef GL + $display("Monitor: Standalone User Risc Boot (GL) Failed"); + `else + $display("Monitor: Standalone User Risc Boot (RTL) Failed"); + `endif + end + $display("###################################################"); + $finish; + end + + initial begin + wb_rst_i <= 1'b1; + #100; + wb_rst_i <= 1'b0; // Release reset + end +wire USER_VDD1V8 = 1'b1; +wire VSS = 1'b0; + +user_project_wrapper u_top( +`ifdef USE_POWER_PINS + .vccd1(USER_VDD1V8), // User area 1 1.8V supply + .vssd1(VSS), // User area 1 digital ground +`endif + .wb_clk_i (clock), // System clock + .user_clock2 (1'b1), // Real-time clock + .wb_rst_i (wb_rst_i), // Regular Reset signal + + .wbs_cyc_i (wbd_ext_cyc_i), // strobe/request + .wbs_stb_i (wbd_ext_stb_i), // strobe/request + .wbs_adr_i (wbd_ext_adr_i), // address + .wbs_we_i (wbd_ext_we_i), // write + .wbs_dat_i (wbd_ext_dat_i), // data output + .wbs_sel_i (wbd_ext_sel_i), // byte enable + + .wbs_dat_o (wbd_ext_dat_o), // data input + .wbs_ack_o (wbd_ext_ack_o), // acknowlegement + + + // Logic Analyzer Signals + .la_data_in ('1) , + .la_data_out (), + .la_oenb ('0), + + + // IOs + .io_in (io_in) , + .io_out (io_out) , + .io_oeb (io_oeb) , + + .user_irq () + +); + +`ifndef GL // Drive Power for Hold Fix Buf + // All standard cell need power hook-up for functionality work + initial begin + + end +`endif + +//------------------------------------------------------ +// Integrate the Serial flash with qurd support to +// user core using the gpio pads +// ---------------------------------------------------- + + wire flash_clk = io_out[24]; + wire flash_csb = io_out[25]; + // Creating Pad Delay + wire #1 io_oeb_29 = io_oeb[29]; + wire #1 io_oeb_30 = io_oeb[30]; + wire #1 io_oeb_31 = io_oeb[31]; + wire #1 io_oeb_32 = io_oeb[32]; + tri #1 flash_io0 = (io_oeb_29== 1'b0) ? io_out[29] : 1'bz; + tri #1 flash_io1 = (io_oeb_30== 1'b0) ? io_out[30] : 1'bz; + tri #1 flash_io2 = (io_oeb_31== 1'b0) ? io_out[31] : 1'bz; + tri #1 flash_io3 = (io_oeb_32== 1'b0) ? io_out[32] : 1'bz; + + assign io_in[29] = flash_io0; + assign io_in[30] = flash_io1; + assign io_in[31] = flash_io2; + assign io_in[32] = flash_io3; + + // Quard flash + s25fl256s #(.mem_file_name("user_sram_exec.hex"), + .otp_file_name("none"), + .TimingModel("S25FL512SAGMFI010_F_30pF")) + u_spi_flash_256mb ( + // Data Inputs/Outputs + .SI (flash_io0), + .SO (flash_io1), + // Controls + .SCK (flash_clk), + .CSNeg (flash_csb), + .WPNeg (flash_io2), + .HOLDNeg (flash_io3), + .RSTNeg (!wb_rst_i) + + ); + + + + +task wb_user_core_write; +input [31:0] address; +input [31:0] data; +begin + repeat (1) @(posedge clock); + #1; + wbd_ext_adr_i =address; // address + wbd_ext_we_i ='h1; // write + wbd_ext_dat_i =data; // data output + wbd_ext_sel_i ='hF; // byte enable + wbd_ext_cyc_i ='h1; // strobe/request + wbd_ext_stb_i ='h1; // strobe/request + wait(wbd_ext_ack_o == 1); + repeat (1) @(posedge clock); + #1; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + $display("DEBUG WB USER ACCESS WRITE Address : %x, Data : %x",address,data); + repeat (2) @(posedge clock); +end +endtask + +task wb_user_core_read; +input [31:0] address; +output [31:0] data; +reg [31:0] data; +begin + repeat (1) @(posedge clock); + #1; + wbd_ext_adr_i =address; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='0; // data output + wbd_ext_sel_i ='hF; // byte enable + wbd_ext_cyc_i ='h1; // strobe/request + wbd_ext_stb_i ='h1; // strobe/request + wait(wbd_ext_ack_o == 1); + repeat (1) @(negedge clock); + data = wbd_ext_dat_o; + repeat (1) @(posedge clock); + #1; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + $display("DEBUG WB USER ACCESS READ Address : %x, Data : %x",address,data); + repeat (2) @(posedge clock); +end +endtask + +task wb_user_core_read_check; +input [31:0] address; +output [31:0] data; +input [31:0] cmp_data; +reg [31:0] data; +begin + repeat (1) @(posedge clock); + #1; + wbd_ext_adr_i =address; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='0; // data output + wbd_ext_sel_i ='hF; // byte enable + wbd_ext_cyc_i ='h1; // strobe/request + wbd_ext_stb_i ='h1; // strobe/request + wait(wbd_ext_ack_o == 1); + repeat (1) @(negedge clock); + data = wbd_ext_dat_o; + repeat (1) @(posedge clock); + #1; + wbd_ext_cyc_i ='h0; // strobe/request + wbd_ext_stb_i ='h0; // strobe/request + wbd_ext_adr_i ='h0; // address + wbd_ext_we_i ='h0; // write + wbd_ext_dat_i ='h0; // data output + wbd_ext_sel_i ='h0; // byte enable + if(data !== cmp_data) begin + $display("ERROR : WB USER ACCESS READ Address : 0x%x, Exd: 0x%x Rxd: 0x%x ",address,cmp_data,data); + test_fail = 1; + end else begin + $display("STATUS: WB USER ACCESS READ Address : 0x%x, Data : 0x%x",address,data); + end + repeat (2) @(posedge clock); +end +endtask + +`ifdef GL + +wire wbd_spi_stb_i = u_top.u_qspi_master.wbd_stb_i; +wire wbd_spi_ack_o = u_top.u_qspi_master.wbd_ack_o; +wire wbd_spi_we_i = u_top.u_qspi_master.wbd_we_i; +wire [31:0] wbd_spi_adr_i = u_top.u_qspi_master.wbd_adr_i; +wire [31:0] wbd_spi_dat_i = u_top.u_qspi_master.wbd_dat_i; +wire [31:0] wbd_spi_dat_o = u_top.u_qspi_master.wbd_dat_o; +wire [3:0] wbd_spi_sel_i = u_top.u_qspi_master.wbd_sel_i; + +wire wbd_uart_stb_i = u_top.u_uart_i2c_usb_spi.reg_cs; +wire wbd_uart_ack_o = u_top.u_uart_i2c_usb_spi.reg_ack; +wire wbd_uart_we_i = u_top.u_uart_i2c_usb_spi.reg_wr; +wire [8:0] wbd_uart_adr_i = u_top.u_uart_i2c_usb_spi.reg_addr; +wire [7:0] wbd_uart_dat_i = u_top.u_uart_i2c_usb_spi.reg_wdata; +wire [7:0] wbd_uart_dat_o = u_top.u_uart_i2c_usb_spi.reg_rdata; +wire wbd_uart_sel_i = u_top.u_uart_i2c_usb_spi.reg_be; + +`endif + +/** +`ifdef GL +//----------------------------------------------------------------------------- +// RISC IMEM amd DMEM Monitoring TASK +//----------------------------------------------------------------------------- + +`define RISC_CORE user_uart_tb.u_top.u_core.u_riscv_top + +always@(posedge `RISC_CORE.wb_clk) begin + if(`RISC_CORE.wbd_imem_ack_i) + $display("RISCV-DEBUG => IMEM ADDRESS: %x Read Data : %x", `RISC_CORE.wbd_imem_adr_o,`RISC_CORE.wbd_imem_dat_i); + if(`RISC_CORE.wbd_dmem_ack_i && `RISC_CORE.wbd_dmem_we_o) + $display("RISCV-DEBUG => DMEM ADDRESS: %x Write Data: %x Resonse: %x", `RISC_CORE.wbd_dmem_adr_o,`RISC_CORE.wbd_dmem_dat_o); + if(`RISC_CORE.wbd_dmem_ack_i && !`RISC_CORE.wbd_dmem_we_o) + $display("RISCV-DEBUG => DMEM ADDRESS: %x READ Data : %x Resonse: %x", `RISC_CORE.wbd_dmem_adr_o,`RISC_CORE.wbd_dmem_dat_i); +end + +`endif +**/ +endmodule +`include "s25fl256s.sv" +`default_nettype wire