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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>
tags/2020-06-01
Ramon Fried 2 years ago
committed by Tom Rini
parent
commit
501c89d330
1 changed files with 35 additions and 1 deletions
  1. +35
    -1
      cmd/iotrace.c

+ 35
- 1
cmd/iotrace.c View File

@@ -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"
);

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