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-rw-r--r--tests/simple_grid/sim.c114
-rw-r--r--tests/simple_grid/source.mk6
-rw-r--r--tests/simple_grid/test.c43
-rw-r--r--tests/simple_riscv32/source.mk6
-rw-r--r--tests/simple_riscv64/s.asm (renamed from tests/simple_riscv32/s.asm)0
-rw-r--r--tests/simple_riscv64/sim.c (renamed from tests/simple_riscv32/sim.c)6
-rw-r--r--tests/simple_riscv64/source.mk6
-rw-r--r--tests/simple_uart/hello.c18
-rw-r--r--tests/simple_uart/sim.c45
-rw-r--r--tests/simple_uart/source.mk6
10 files changed, 241 insertions, 9 deletions
diff --git a/tests/simple_grid/sim.c b/tests/simple_grid/sim.c
new file mode 100644
index 0000000..e0c485b
--- /dev/null
+++ b/tests/simple_grid/sim.c
@@ -0,0 +1,114 @@
+/* testcase for a 64x64 grid of processors, that all just spam the first memory
+ * region due to there being a 'lock' variable there, more or less the worst
+ * possible program for performance. */
+#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/grid/node.h>
+#include <gran/grid/router.h>
+#include <gran/cpu/riscv/simple_riscv64.h>
+
+unsigned char test_grid[] = {
+ 0xb3, 0x67, 0xb5, 0x00, 0x63, 0x9a, 0x07, 0x0a, 0xb7, 0x17, 0x00, 0x00,
+ 0x23, 0xb0, 0x07, 0x00, 0x1b, 0x57, 0x35, 0x00, 0xb7, 0x27, 0x00, 0x00,
+ 0x93, 0x06, 0x80, 0x02, 0x13, 0x77, 0x77, 0x00, 0x23, 0x80, 0xd7, 0x00,
+ 0x13, 0x07, 0x07, 0x03, 0x93, 0x76, 0x75, 0x00, 0x23, 0x80, 0xe7, 0x00,
+ 0x13, 0x87, 0x06, 0x03, 0x23, 0x80, 0xe7, 0x00, 0x93, 0x06, 0xc0, 0x02,
+ 0x1b, 0xd7, 0x35, 0x00, 0x23, 0x80, 0xd7, 0x00, 0x13, 0x77, 0x77, 0x00,
+ 0x93, 0x06, 0x00, 0x02, 0x23, 0x80, 0xd7, 0x00, 0x13, 0x07, 0x07, 0x03,
+ 0x93, 0xf6, 0x75, 0x00, 0x23, 0x80, 0xe7, 0x00, 0x13, 0x87, 0x06, 0x03,
+ 0x23, 0x80, 0xe7, 0x00, 0x13, 0x07, 0x90, 0x02, 0x23, 0x80, 0xe7, 0x00,
+ 0x93, 0x06, 0xa0, 0x00, 0x23, 0x80, 0xd7, 0x00, 0x1b, 0x87, 0x15, 0x00,
+ 0x93, 0x06, 0xf0, 0x03, 0x93, 0x77, 0xf7, 0x0f, 0x63, 0x98, 0xd5, 0x00,
+ 0x1b, 0x05, 0x15, 0x00, 0x13, 0x75, 0xf5, 0x0f, 0x93, 0x07, 0x00, 0x00,
+ 0x13, 0x15, 0x85, 0x00, 0x33, 0x65, 0xf5, 0x00, 0xb7, 0x17, 0x00, 0x00,
+ 0x23, 0xb0, 0xa7, 0x00, 0xb7, 0x16, 0x00, 0x00, 0x37, 0x47, 0x00, 0x00,
+ 0x83, 0xb7, 0x06, 0x00, 0xe3, 0x9e, 0xe7, 0xfe, 0x73, 0x00, 0x10, 0x00,
+ 0x67, 0x80, 0x00, 0x00, 0x13, 0x17, 0x85, 0x00, 0x33, 0x67, 0xb7, 0x00,
+ 0xb7, 0x16, 0x00, 0x00, 0x83, 0xb7, 0x06, 0x00, 0xe3, 0x9e, 0xe7, 0xfe,
+ 0x6f, 0xf0, 0x5f, 0xf4
+};
+unsigned int test_grid_len = 208;
+
+static struct component *get_grid(struct component **grid, int i, int j, uint8_t x, uint8_t y)
+{
+ if (i < 0)
+ return NULL;
+
+ if (j < 0)
+ return NULL;
+
+ if (i >= x)
+ return NULL;
+
+ if (j >= y)
+ return NULL;
+
+ return grid[i * x + j];
+}
+
+static stat build_grid(struct clock_domain *clk, uint8_t x, uint8_t y)
+{
+ struct component **grid = calloc(x * y, sizeof(struct component *));
+ assert(grid);
+
+ struct component **routers = calloc(x * y, sizeof(struct component *));
+ assert(routers);
+
+ for (size_t i = 0; i < x; ++i)
+ for (size_t j = 0; j < y; ++j) {
+ struct component *imem = create_simple_mem(4096);
+ init_simple_mem(imem, 0, test_grid_len, test_grid);
+
+ struct component *dmem = create_simple_mem(4096);
+ struct component *router = create_node_router(0, 0, i, j);
+ node_router_add(router, dmem, 4096, 4096);
+
+ struct component *rv64 = create_simple_riscv64(0, imem, router);
+ simple_riscv64_set_reg(rv64, 10, i); /* a0 */
+ simple_riscv64_set_reg(rv64, 11, j); /* a1 */
+
+ clock_domain_add(clk, rv64);
+
+ routers[i * x + j] = router;
+ grid[i * x + j] = create_grid_node(0, 0, i, j);
+ }
+
+ struct component *uart = create_simple_uart();
+ node_router_add(routers[0], uart, 8192, 1);
+
+ for (int i = 0; i < x; ++i)
+ for (int j = 0; j < y; ++j) {
+ struct component *node = grid[i * x + j];
+ struct component *lower = routers[i * x + j];
+ struct component *left = get_grid(grid, i - 1, j , x, y);
+ struct component *right = get_grid(grid, i + 1, j , x, y);
+ struct component *up = get_grid(grid, i , j + 1, x, y);
+ struct component *down = get_grid(grid, i , j - 1, x, y);
+ grid_node_connect(node, left, right, up, down, lower, NULL);
+ node_router_ascend(lower, node);
+ }
+
+ free(routers);
+ free(grid);
+ return OK;
+}
+
+int main()
+{
+ struct clock_domain *clk = create_clock_domain(NS(1));
+
+ stat r = build_grid(clk, 64, 64);
+ assert(r == OK);
+
+ struct gran_root *root = create_root();
+ root_add_clock(root, clk);
+
+ r = root_run(root);
+ assert(r == OK);
+
+ destroy_root(root);
+}
diff --git a/tests/simple_grid/source.mk b/tests/simple_grid/source.mk
new file mode 100644
index 0000000..e2dd442
--- /dev/null
+++ b/tests/simple_grid/source.mk
@@ -0,0 +1,6 @@
+GRID_TEST_OBJ != ./scripts/gen-deps --sources "tests/simple_grid/sim.c"
+
+TEST_PROGS += build/tests/simple_grid/sim
+
+build/tests/simple_grid/sim: $(GRID_TEST_OBJ) $(OBJS)
+ $(COMPILE) $(GRID_TEST_OBJ) $(OBJS) -o $@
diff --git a/tests/simple_grid/test.c b/tests/simple_grid/test.c
new file mode 100644
index 0000000..782062d
--- /dev/null
+++ b/tests/simple_grid/test.c
@@ -0,0 +1,43 @@
+#define X 64
+#define Y 64
+
+void _start(unsigned char x, unsigned char y)
+{
+ volatile unsigned long *counter = (unsigned long *)4096;
+ volatile char *uart = (char *)8192;
+
+ /* very hacky, not recommended but good enough for testing */
+ if (x == 0 && y == 0)
+ *counter = 0;
+ else
+ while (*counter != ((x << 8) | y))
+ ;
+
+ *uart = '(';
+ /* [0 - 63] as two octal numbers */
+ *uart = ((x >> 3) & 0x7) + '0';
+ *uart = ((x >> 0) & 0x7) + '0';
+
+ *uart = ',';
+ *uart = ' ';
+
+ *uart = ((y >> 3) & 0x7) + '0';
+ *uart = ((y >> 0) & 0x7) + '0';
+
+ *uart = ')';
+ *uart = '\n';
+
+ if (y == 63) {
+ x++;
+ y = 0;
+ }
+ else
+ y++;
+
+ *counter = (x << 8) | y;
+
+ while (*counter != (64 << 8))
+ ;
+
+ asm ("ebreak\n");
+}
diff --git a/tests/simple_riscv32/source.mk b/tests/simple_riscv32/source.mk
deleted file mode 100644
index 736c111..0000000
--- a/tests/simple_riscv32/source.mk
+++ /dev/null
@@ -1,6 +0,0 @@
-RV32_TEST_OBJ != ./scripts/gen-deps --sources "tests/simple_riscv32/sim.c"
-
-TEST_PROGS += build/tests/simple_riscv32/sim
-
-build/tests/simple_riscv32/sim: $(RV32_TEST_OBJ) $(TEST_OBJS) $(OBJS)
- $(COMPILE) $(RV32_TEST_OBJ) $(TEST_OBJS) $(OBJS) -o $@
diff --git a/tests/simple_riscv32/s.asm b/tests/simple_riscv64/s.asm
index d423dd9..d423dd9 100644
--- a/tests/simple_riscv32/s.asm
+++ b/tests/simple_riscv64/s.asm
diff --git a/tests/simple_riscv32/sim.c b/tests/simple_riscv64/sim.c
index fcf19a1..ae3cad4 100644
--- a/tests/simple_riscv32/sim.c
+++ b/tests/simple_riscv64/sim.c
@@ -5,7 +5,7 @@
#include <gran/root.h>
#include <gran/mem/simple_mem.h>
-#include <gran/cpu/riscv/simple_riscv32.h>
+#include <gran/cpu/riscv/simple_riscv64.h>
unsigned char simple_sum[] = {
0x13, 0x05, 0x00, 0x00, 0xb7, 0x45, 0x0f, 0x00, 0x93, 0x85, 0x05, 0x24,
@@ -24,10 +24,10 @@ int main()
init_simple_mem(imem, 0, simple_sum_len, simple_sum);
struct component *dmem = create_simple_mem(size);
- struct component *rv32 = create_simple_riscv32(0, imem, dmem);
+ struct component *rv64 = create_simple_riscv64(0, imem, dmem);
struct clock_domain *clk = create_clock_domain(NS(1));
- clock_domain_add(clk, rv32);
+ clock_domain_add(clk, rv64);
struct gran_root *root = create_root();
root_add_clock(root, clk);
diff --git a/tests/simple_riscv64/source.mk b/tests/simple_riscv64/source.mk
new file mode 100644
index 0000000..fbc541d
--- /dev/null
+++ b/tests/simple_riscv64/source.mk
@@ -0,0 +1,6 @@
+RV64_TEST_OBJ != ./scripts/gen-deps --sources "tests/simple_riscv64/sim.c"
+
+TEST_PROGS += build/tests/simple_riscv64/sim
+
+build/tests/simple_riscv64/sim: $(RV64_TEST_OBJ) $(TEST_OBJS) $(OBJS)
+ $(COMPILE) $(RV64_TEST_OBJ) $(TEST_OBJS) $(OBJS) -o $@
diff --git a/tests/simple_uart/hello.c b/tests/simple_uart/hello.c
new file mode 100644
index 0000000..30719e0
--- /dev/null
+++ b/tests/simple_uart/hello.c
@@ -0,0 +1,18 @@
+/* compile with
+ * riscv64-unknown-elf-gcc -ffreestanding -nostdlib -Wl,-Ttext=0 -march=rv64i -mabi=lp64 -O2 hello.c -o simple_hello
+ * xxd --include simple_hello
+ */
+void _start()
+{
+ /* relies on hard-coded system, good enough for this simple test */
+ volatile char *uart = (char *)4096;
+ *uart = 'H';
+ *uart = 'e';
+ *uart = 'l';
+ *uart = 'l';
+ *uart = 'o';
+ *uart = '!';
+ *uart = '\n';
+
+ asm ("ebreak\n");
+}
diff --git a/tests/simple_uart/sim.c b/tests/simple_uart/sim.c
new file mode 100644
index 0000000..762b591
--- /dev/null
+++ b/tests/simple_uart/sim.c
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: copyleft-next-0.3.1 */
+/* Copyright 2023 Kim Kuparinen < kimi.h.kuparinen@gmail.com > */
+
+#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/cpu/riscv/simple_riscv64.h>
+
+unsigned char simple_hello[] = {
+ 0xb7, 0x17, 0x00, 0x00, 0x13, 0x07, 0x80, 0x04, 0x23, 0x80, 0xe7, 0x00,
+ 0x13, 0x07, 0x50, 0x06, 0x23, 0x80, 0xe7, 0x00, 0x13, 0x07, 0xc0, 0x06,
+ 0x23, 0x80, 0xe7, 0x00, 0x23, 0x80, 0xe7, 0x00, 0x13, 0x07, 0xf0, 0x06,
+ 0x23, 0x80, 0xe7, 0x00, 0x13, 0x07, 0x10, 0x02, 0x23, 0x80, 0xe7, 0x00,
+ 0x13, 0x07, 0xa0, 0x00, 0x23, 0x80, 0xe7, 0x00, 0x73, 0x00, 0x10, 0x00,
+ 0x67, 0x80, 0x00, 0x00
+};
+unsigned int simple_hello_len = 64;
+
+int main()
+{
+ const size_t size = 4096;
+ struct component *imem = create_simple_mem(size);
+ init_simple_mem(imem, 0, simple_hello_len, simple_hello);
+
+ struct component *dmem = create_simple_mem(size);
+ struct component *uart = create_simple_uart();
+ struct component *bus = create_simple_bus();
+ simple_bus_add(bus, dmem, 0, size);
+ simple_bus_add(bus, uart, size, 1);
+
+ struct component *rv64 = create_simple_riscv64(0, imem, bus);
+
+ struct clock_domain *clk = create_clock_domain(NS(1));
+ clock_domain_add(clk, rv64);
+
+ struct gran_root *root = create_root();
+ root_add_clock(root, clk);
+
+ assert(root_run(root) == OK);
+
+ destroy_root(root);
+}
diff --git a/tests/simple_uart/source.mk b/tests/simple_uart/source.mk
new file mode 100644
index 0000000..a42a447
--- /dev/null
+++ b/tests/simple_uart/source.mk
@@ -0,0 +1,6 @@
+UART_TEST_OBJ != ./scripts/gen-deps --sources "tests/simple_uart/sim.c"
+
+TEST_PROGS += build/tests/simple_uart/sim
+
+build/tests/simple_uart/sim: $(UART_TEST_OBJ) $(OBJS)
+ $(COMPILE) $(UART_TEST_OBJ) $(TEST_OBJS) $(OBJS) -o $@
generated by cgit v1.3 (git 2.53.0) at 2026-08-27 02:15:30 +0000