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#include <assert.h>
#include <gran/root.h>
#include <gran/mem/simple_mem.h>
#include <gran/bus/simple_bus.h>
#include <gran/uart/simple_uart.h>
#include <gran/mesh/node.h>
#include <gran/cpu/riscv/simple_riscv64.h>
#include "../build/tests/simple_mesh/test.inc"
static size_t idx_1d(int x, int y, uint8_t xw, uint8_t yw)
{
(void)xw; /* maybe unused */
assert(0 <= x && x < xw);
assert(0 <= y && y < yw);
return (x * yw) + y;
}
static struct component *mesh_at(struct component **mesh,
int x, int y,
uint8_t xw, uint8_t yw)
{
if (x < 0)
return NULL;
if (y < 0)
return NULL;
if (x >= xw)
return NULL;
if (y >= yw)
return NULL;
return mesh[idx_1d(x, y, xw, yw)];
}
static void connect_mesh(struct component **mesh, struct component *c,
uint16_t x, uint16_t y,
uint16_t xw, uint16_t yw)
{
mesh_node_connect(mesh_at(mesh, x, y, xw, yw),
mesh_at(mesh, x , y+1, xw, yw),
mesh_at(mesh, x , y-1, xw, yw),
mesh_at(mesh, x+1, y , xw, yw),
mesh_at(mesh, x-1, y , xw, yw),
c);
}
static stat build_mesh(struct clock_domain *clk, uint16_t x, uint16_t y)
{
struct component **mesh = calloc(x * y, sizeof(struct component *));
assert(mesh);
struct component **pes = calloc(x * y, sizeof(struct component *));
assert(pes);
for (size_t i = 0; i < x; ++i)
for (size_t j = 0; j < y; ++j) {
struct component *node = create_mesh_node(i, j);
clock_domain_add(clk, node);
mesh[idx_1d(i, j, x, y)] = node;
if (i == 0 && j == 0)
continue;
if (i == 0 && j == 1)
continue;
struct component *imem = create_simple_mem(4096);
init_simple_mem(imem, 0,
build_tests_simple_mesh_test_bin_len,
build_tests_simple_mesh_test_bin);
uint64_t rcv = mesh_addr(i, j, 0);
struct component *rv64 = create_simple_riscv64(rcv, 0, imem, node);
simple_riscv64_set_reg(rv64, 10, i); /* a0 */
simple_riscv64_set_reg(rv64, 11, j); /* a1 */
simple_riscv64_set_reg(rv64, 12, x); /* a3 */
simple_riscv64_set_reg(rv64, 13, y); /* a4 */
clock_domain_add(clk, rv64);
clock_domain_add(clk, imem);
pes[idx_1d(i, j, x, y)] = rv64;
}
struct component *uart = create_simple_uart();
clock_domain_add(clk, uart);
connect_mesh(mesh, uart, 0, 0, x, y);
struct component *dmem = create_simple_mem(4096);
clock_domain_add(clk, dmem);
connect_mesh(mesh, dmem, 0, 1, x, y);
for (int i = 0; i < x; ++i)
for (int j = 0; j < y; ++j) {
if (i == 0 && j == 0)
continue;
if (i == 0 && j == 1)
continue;
connect_mesh(mesh, pes[idx_1d(i, j, x, y)], i, j, x, y);
}
free(mesh);
free(pes);
return OK;
}
int main()
{
struct clock_domain *clk = create_clock_domain(NS(1));
stat r = build_mesh(clk, 8, 8);
assert(r == OK);
struct gran_root *root = create_root();
root_add_clock(root, clk);
r = root_run(root);
assert(r == OK);
destroy_root(root);
}
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