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speeding up simulation using dedicated full dpi-based FPU core

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This commit is contained in:
Blaise Tine
2021-01-06 18:44:06 -08:00
parent 2058718f0f
commit 2b8435471a
26 changed files with 990 additions and 430 deletions
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5
hw/simulate/Makefile
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@@ -31,12 +31,13 @@ MULTICORE ?= -DNUM_CLUSTERS=1 -DNUM_CORES=2 -DL2_ENABLE=0
TOP = Vortex
RTL_DIR=../rtl
DPI_DIR=../dpi
FPU_INCLUDE = -I$(RTL_DIR)/fp_cores -I$(RTL_DIR)/fp_cores/svdpi -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/include -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/src -I$(RTL_DIR)/fp_cores/fpnew/src/fpu_div_sqrt_mvp/hdl -I$(RTL_DIR)/fp_cores/fpnew/src
FPU_INCLUDE = -I$(RTL_DIR)/fp_cores -I$(DPI_DIR) -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/include -I$(RTL_DIR)/fp_cores/fpnew/src/common_cells/src -I$(RTL_DIR)/fp_cores/fpnew/src/fpu_div_sqrt_mvp/hdl -I$(RTL_DIR)/fp_cores/fpnew/src
RTL_INCLUDE = -I$(RTL_DIR)/ -I$(RTL_DIR)/libs -I$(RTL_DIR)/interfaces -I$(RTL_DIR)/cache -I$(RTL_DIR)/simulate $(FPU_INCLUDE)
SRCS = simulator.cpp testbench.cpp
SRCS += $(RTL_DIR)/fp_cores/svdpi/float_dpi.cpp
SRCS += $(DPI_DIR)/util_dpi.cpp $(DPI_DIR)/float_dpi.cpp
VL_FLAGS += -O2 --language 1800-2009 --assert -Wall -Wpedantic
VL_FLAGS += -Wno-DECLFILENAME

12
hw/simulate/simulator.cpp
View File

@@ -3,7 +3,7 @@
#include <fstream>
#include <iomanip>
#define RESET_DELAY 2
#define RESET_DELAY 4
#define ENABLE_DRAM_STALLS
#define DRAM_LATENCY 24
@@ -75,13 +75,6 @@ void Simulator::reset() {
vortex_->csr_rsp_ready = 0;
vortex_->reset = 1;
vortex_->clk = 0;
this->eval();
vortex_->clk = 1;
this->eval();
vortex_->reset = 0;
for (int i = 0; i < RESET_DELAY; ++i) {
vortex_->clk = 0;
@@ -89,8 +82,11 @@ void Simulator::reset() {
vortex_->clk = 1;
this->eval();
}
vortex_->reset = 0;
// Turn on assertion after reset
printf("*** enabling assertion at tick: %ld", timestamp);
Verilated::assertOn(true);
}