}
}
+static void binprint(struct command_context *cmd_ctx, const char *text, const uint8_t *buf, int size)
+{
+ if (text != NULL)
+ command_print_sameline(cmd_ctx, "%s", text);
+ for (int i = 0; i < size; i++)
+ command_print_sameline(cmd_ctx, " %02x", buf[i]);
+ command_print(cmd_ctx, " ");
+}
+
+COMMAND_HANDLER(handle_test_mem_access_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ uint32_t test_size;
+ int retval = ERROR_OK;
+
+ if (target->state != TARGET_HALTED) {
+ LOG_INFO("target not halted !!");
+ return ERROR_FAIL;
+ }
+
+ if (CMD_ARGC != 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], test_size);
+
+ /* Test reads */
+ size_t num_bytes = test_size + 4;
+
+ struct working_area *wa = NULL;
+ retval = target_alloc_working_area(target, num_bytes, &wa);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Not enough working area");
+ return ERROR_FAIL;
+ }
+
+ uint8_t *test_pattern = malloc(num_bytes);
+
+ for (size_t i = 0; i < num_bytes; i++)
+ test_pattern[i] = rand();
+
+ retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Test pattern write failed");
+ goto out;
+ }
+
+ for (int host_offset = 0; host_offset <= 1; host_offset++) {
+ for (int size = 1; size <= 4; size *= 2) {
+ for (int offset = 0; offset < 4; offset++) {
+ uint32_t count = test_size / size;
+ size_t host_bufsiz = (count + 2) * size + host_offset;
+ uint8_t *read_ref = malloc(host_bufsiz);
+ uint8_t *read_buf = malloc(host_bufsiz);
+
+ for (size_t i = 0; i < host_bufsiz; i++) {
+ read_ref[i] = rand();
+ read_buf[i] = read_ref[i];
+ }
+ command_print_sameline(CMD_CTX,
+ "Test read %d x %d @ %d to %saligned buffer: ", count,
+ size, offset, host_offset ? "un" : "");
+
+ struct duration bench;
+ duration_start(&bench);
+
+ retval = target_read_memory(target, wa->address + offset, size, count,
+ read_buf + size + host_offset);
+
+ duration_measure(&bench);
+
+ if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
+ command_print(CMD_CTX, "Unsupported alignment");
+ goto next;
+ } else if (retval != ERROR_OK) {
+ command_print(CMD_CTX, "Memory read failed");
+ goto next;
+ }
+
+ /* replay on host */
+ memcpy(read_ref + size + host_offset, test_pattern + offset, count * size);
+
+ /* check result */
+ int result = memcmp(read_ref, read_buf, host_bufsiz);
+ if (result == 0) {
+ command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
+ duration_elapsed(&bench),
+ duration_kbps(&bench, count * size));
+ } else {
+ command_print(CMD_CTX, "Compare failed");
+ binprint(CMD_CTX, "ref:", read_ref, host_bufsiz);
+ binprint(CMD_CTX, "buf:", read_buf, host_bufsiz);
+ }
+next:
+ free(read_ref);
+ free(read_buf);
+ }
+ }
+ }
+
+out:
+ free(test_pattern);
+
+ if (wa != NULL)
+ target_free_working_area(target, wa);
+
+ /* Test writes */
+ num_bytes = test_size + 4 + 4 + 4;
+
+ retval = target_alloc_working_area(target, num_bytes, &wa);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Not enough working area");
+ return ERROR_FAIL;
+ }
+
+ test_pattern = malloc(num_bytes);
+
+ for (size_t i = 0; i < num_bytes; i++)
+ test_pattern[i] = rand();
+
+ for (int host_offset = 0; host_offset <= 1; host_offset++) {
+ for (int size = 1; size <= 4; size *= 2) {
+ for (int offset = 0; offset < 4; offset++) {
+ uint32_t count = test_size / size;
+ size_t host_bufsiz = count * size + host_offset;
+ uint8_t *read_ref = malloc(num_bytes);
+ uint8_t *read_buf = malloc(num_bytes);
+ uint8_t *write_buf = malloc(host_bufsiz);
+
+ for (size_t i = 0; i < host_bufsiz; i++)
+ write_buf[i] = rand();
+ command_print_sameline(CMD_CTX,
+ "Test write %d x %d @ %d from %saligned buffer: ", count,
+ size, offset, host_offset ? "un" : "");
+
+ retval = target_write_memory(target, wa->address, 1, num_bytes, test_pattern);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX, "Test pattern write failed");
+ goto nextw;
+ }
+
+ /* replay on host */
+ memcpy(read_ref, test_pattern, num_bytes);
+ memcpy(read_ref + size + offset, write_buf + host_offset, count * size);
+
+ struct duration bench;
+ duration_start(&bench);
+
+ retval = target_write_memory(target, wa->address + size + offset, size, count,
+ write_buf + host_offset);
+
+ duration_measure(&bench);
+
+ if (retval == ERROR_TARGET_UNALIGNED_ACCESS) {
+ command_print(CMD_CTX, "Unsupported alignment");
+ goto nextw;
+ } else if (retval != ERROR_OK) {
+ command_print(CMD_CTX, "Memory write failed");
+ goto nextw;
+ }
+
+ /* read back */
+ retval = target_read_memory(target, wa->address, 1, num_bytes, read_buf);
+ if (retval != ERROR_OK) {
+ command_print(CMD_CTX, "Test pattern write failed");
+ goto nextw;
+ }
+
+ /* check result */
+ int result = memcmp(read_ref, read_buf, num_bytes);
+ if (result == 0) {
+ command_print(CMD_CTX, "Pass in %fs (%0.3f KiB/s)",
+ duration_elapsed(&bench),
+ duration_kbps(&bench, count * size));
+ } else {
+ command_print(CMD_CTX, "Compare failed");
+ binprint(CMD_CTX, "ref:", read_ref, num_bytes);
+ binprint(CMD_CTX, "buf:", read_buf, num_bytes);
+ }
+nextw:
+ free(read_ref);
+ free(read_buf);
+ }
+ }
+ }
+
+ free(test_pattern);
+
+ if (wa != NULL)
+ target_free_working_area(target, wa);
+ return retval;
+}
+
static const struct command_registration target_exec_command_handlers[] = {
{
.name = "fast_load_image",
.help = "list all tasks ",
.usage = " ",
},
+ {
+ .name = "test_mem_access",
+ .handler = handle_test_mem_access_command,
+ .mode = COMMAND_EXEC,
+ .help = "Test the target's memory access functions",
+ .usage = "size",
+ },
COMMAND_REGISTRATION_DONE
};
Code Review / openocd.git / blobdiff