cmd: iotrace: add dump trace command

Add dump trace command which dump all trace
buffer content in a much more readable fashion
than md.

Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/cmd/iotrace.c b/cmd/iotrace.c
index 601b8c8e32acd308517df820d9e479072a0fa4eb..f8ce3398afee9097e681baad0f3696fec4e62e32 100644 (file)
--- a/cmd/iotrace.c
+++ b/cmd/iotrace.c
@@ -24,6 +24,36 @@ static void do_print_stats(void)
        printf("CRC32:  %08lx\n", (ulong)iotrace_get_checksum());
 }
 
+static void do_print_trace(void)
+{
+       ulong start, size, offset, count;
+
+       struct iotrace_record *cur_record;
+
+       iotrace_get_buffer(&start, &size, &offset, &count);
+
+       if (!start || !size || !count)
+               return;
+
+       printf("Timestamp  Value          Address\n");
+
+       cur_record = (struct iotrace_record *)start;
+       for (int i = 0; i < count; i++) {
+               if (cur_record->flags & IOT_WRITE)
+                       printf("%08llu: 0x%08lx --> 0x%08llx\n",
+                              cur_record->timestamp,
+                                       cur_record->value,
+                                       (unsigned long long)cur_record->addr);
+               else
+                       printf("%08llu: 0x%08lx <-- 0x%08llx\n",
+                              cur_record->timestamp,
+                                       cur_record->value,
+                                       (unsigned long long)cur_record->addr);
+
+               cur_record++;
+       }
+}
+
 static int do_set_buffer(int argc, char * const argv[])
 {
        ulong addr = 0, size = 0;
@@ -76,6 +106,9 @@ int do_iotrace(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
        case 's':
                do_print_stats();
                break;
+       case 'd':
+               do_print_trace();
+               break;
        default:
                return CMD_RET_USAGE;
        }
@@ -90,5 +123,6 @@ U_BOOT_CMD(
        "iotrace buffer <address> <size>      - set iotrace buffer\n"
        "iotrace limit <address> <size>       - set iotrace region limit\n"
        "iotrace pause                        - pause tracing\n"
-       "iotrace resume                       - resume tracing"
+       "iotrace resume                       - resume tracing\n"
+       "iotrace dump                         - dump iotrace buffer"
 );