148 lines
3.4 KiB
C++
148 lines
3.4 KiB
C++
#include "htif_emulator.h"
|
|
#include "mm.h"
|
|
#include "mm_dramsim2.h"
|
|
#include <DirectC.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <vector>
|
|
#include <sstream>
|
|
#include <iterator>
|
|
|
|
static htif_emulator_t* htif = NULL;
|
|
static unsigned htif_bytes;
|
|
static mm_t* mm = NULL;
|
|
|
|
extern "C" {
|
|
|
|
void memory_tick(
|
|
vc_handle mem_req_val,
|
|
vc_handle mem_req_rdy,
|
|
vc_handle mem_req_store,
|
|
vc_handle mem_req_addr,
|
|
vc_handle mem_req_tag,
|
|
|
|
vc_handle mem_req_data_val,
|
|
vc_handle mem_req_data_rdy,
|
|
vc_handle mem_req_data_bits,
|
|
|
|
vc_handle mem_resp_val,
|
|
vc_handle mem_resp_rdy,
|
|
vc_handle mem_resp_tag,
|
|
vc_handle mem_resp_data)
|
|
{
|
|
uint32_t req_data[mm->get_word_size()/sizeof(uint32_t)];
|
|
for (size_t i = 0; i < mm->get_word_size()/sizeof(uint32_t); i++)
|
|
req_data[i] = vc_4stVectorRef(mem_req_data_bits)[i].d;
|
|
|
|
vc_putScalar(mem_req_rdy, mm->req_cmd_ready());
|
|
vc_putScalar(mem_req_data_rdy, mm->req_data_ready());
|
|
vc_putScalar(mem_resp_val, mm->resp_valid());
|
|
|
|
vec32 d[mm->get_word_size()/sizeof(uint32_t)];
|
|
d[0].c = 0;
|
|
d[0].d = mm->resp_tag();
|
|
vc_put4stVector(mem_resp_tag, d);
|
|
|
|
for (size_t i = 0; i < mm->get_word_size()/sizeof(uint32_t); i++)
|
|
{
|
|
d[i].c = 0;
|
|
d[i].d = ((uint32_t*)mm->resp_data())[i];
|
|
}
|
|
vc_put4stVector(mem_resp_data, d);
|
|
|
|
mm->tick
|
|
(
|
|
vc_getScalar(mem_req_val),
|
|
vc_getScalar(mem_req_store),
|
|
vc_4stVectorRef(mem_req_addr)->d,
|
|
vc_4stVectorRef(mem_req_tag)->d,
|
|
vc_getScalar(mem_req_data_val),
|
|
req_data,
|
|
vc_getScalar(mem_resp_rdy)
|
|
);
|
|
}
|
|
|
|
void htif_init
|
|
(
|
|
vc_handle htif_width,
|
|
vc_handle mem_width,
|
|
vc_handle argv,
|
|
vc_handle loadmem,
|
|
vc_handle dramsim
|
|
)
|
|
{
|
|
int mw = vc_4stVectorRef(mem_width)->d;
|
|
mm = vc_getScalar(dramsim) ? (mm_t*)(new mm_dramsim2_t) : (mm_t*)(new mm_magic_t);
|
|
assert(mw && (mw & (mw-1)) == 0);
|
|
mm->init(MEM_SIZE, mw/8, LINE_SIZE);
|
|
|
|
vec32* w = vc_4stVectorRef(htif_width);
|
|
assert(w->d <= 32 && w->d % 8 == 0); // htif_tick assumes data fits in a vec32
|
|
htif_bytes = w->d/8;
|
|
|
|
char loadmem_str[1024];
|
|
vc_VectorToString(loadmem, loadmem_str);
|
|
if (*loadmem_str)
|
|
load_mem(mm->get_data(), loadmem_str);
|
|
|
|
char argv_str[1024];
|
|
vc_VectorToString(argv, argv_str);
|
|
if (!*argv_str)
|
|
{
|
|
if (*loadmem_str)
|
|
strcpy(argv_str, "none");
|
|
else
|
|
{
|
|
fprintf(stderr, "Usage: ./simv [host options] +argv=\"<target program> [target args]\"\n");
|
|
exit(-1);
|
|
}
|
|
}
|
|
|
|
std::vector<std::string> args;
|
|
std::stringstream ss(argv_str);
|
|
std::istream_iterator<std::string> begin(ss), end;
|
|
std::copy(begin, end, std::back_inserter<std::vector<std::string>>(args));
|
|
|
|
htif = new htif_emulator_t(args);
|
|
}
|
|
|
|
void htif_fini()
|
|
{
|
|
delete htif;
|
|
htif = NULL;
|
|
}
|
|
|
|
void htif_tick
|
|
(
|
|
vc_handle htif_in_valid,
|
|
vc_handle htif_in_ready,
|
|
vc_handle htif_in_bits,
|
|
vc_handle htif_out_valid,
|
|
vc_handle htif_out_ready,
|
|
vc_handle htif_out_bits,
|
|
vc_handle exit
|
|
)
|
|
{
|
|
static bool peek_in_valid;
|
|
static uint32_t peek_in_bits;
|
|
if (vc_getScalar(htif_in_ready))
|
|
peek_in_valid = htif->recv_nonblocking(&peek_in_bits, htif_bytes);
|
|
|
|
vc_putScalar(htif_out_ready, 1);
|
|
if (vc_getScalar(htif_out_valid))
|
|
{
|
|
vec32* bits = vc_4stVectorRef(htif_out_bits);
|
|
htif->send(&bits->d, htif_bytes);
|
|
}
|
|
|
|
vec32 bits = {0, 0};
|
|
bits.d = peek_in_bits;
|
|
vc_put4stVector(htif_in_bits, &bits);
|
|
vc_putScalar(htif_in_valid, peek_in_valid);
|
|
|
|
bits.d = htif->done() ? (htif->exit_code() << 1 | 1) : 0;
|
|
vc_put4stVector(exit, &bits);
|
|
}
|
|
|
|
}
|