1 files changed, 126 insertions, 0 deletions
diff --git a/tests/simple_mesh2d/sim.c b/tests/simple_mesh2d/sim.c
new file mode 100644
index 0000000..1a9ba32
--- /dev/null
+++ b/tests/simple_mesh2d/sim.c
@@ -0,0 +1,126 @@
+#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/node2d.h>
+#include <gran/cpu/riscv/simple_riscv64.h>
+
+#include "../build/tests/simple_mesh2d/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_node2d_connect_north(mesh_at(mesh, x, y, xw, yw), mesh_at(mesh, x  , y+1, xw, yw));
+	mesh_node2d_connect_south(mesh_at(mesh, x, y, xw, yw), mesh_at(mesh, x  , y-1, xw, yw));
+	mesh_node2d_connect_east(mesh_at(mesh, x, y, xw, yw),  mesh_at(mesh, x+1, y  , xw, yw));
+	mesh_node2d_connect_west(mesh_at(mesh, x, y, xw, yw),  mesh_at(mesh, x-1, y  , xw, yw));
+	mesh_node2d_connect(mesh_at(mesh, x, y, xw, yw), c, 0);
+}
+
+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_node2d(i, j, 1);
+		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_mesh2d_test_bin_len,
+				build_tests_simple_mesh2d_test_bin);
+
+		uint64_t rcv = mesh2d_addr(i, j, 0, 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);
+}