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Timestamps: Add option to print timestamps to debug console 

Prints the timestamp name and value to the debug console if enabled
in Kconfig.

Change-Id: Ie6e6a4877fefec45fb987ceae7d42de6ce768159
Signed-off-by: Martin Roth <martinroth@chromium.org>
Reviewed-on: https://review.coreboot.org/25024
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This commit is contained in:
Martin Roth 2018-03-07 15:32:16 -07:00 committed by Martin Roth
parent 8da81da3b9
commit b22bbe27fc
2 changed files with 23 additions and 0 deletions
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7
src/Kconfig
View File

@ -185,6 +185,13 @@ config COLLECT_TIMESTAMPS
Make coreboot create a table of timer-ID/timer-value pairs to Make coreboot create a table of timer-ID/timer-value pairs to
allow measuring time spent at different phases of the boot process. allow measuring time spent at different phases of the boot process.
config TIMESTAMPS_ON_CONSOLE
bool "Print the timestamp values on the console"
default n
depends on COLLECT_TIMESTAMPS
help
Print the timestamps to the debug console if enabled at level spew.
config USE_BLOBS config USE_BLOBS
bool "Allow use of binary-only repository" bool "Allow use of binary-only repository"
help help

16
src/lib/timestamp.c
View File

@ -154,6 +154,18 @@ static struct timestamp_table *timestamp_table_get(void)
return ts_table; return ts_table;
} }
static const char *timestamp_name(enum timestamp_id id)
{
int i;
for (i = 0; i < ARRAY_SIZE(timestamp_ids); i++) {
if (timestamp_ids[i].id == id)
return timestamp_ids[i].name;
}
return "Unknown timestamp ID";
}
static void timestamp_add_table_entry(struct timestamp_table *ts_table, static void timestamp_add_table_entry(struct timestamp_table *ts_table,
enum timestamp_id id, uint64_t ts_time) enum timestamp_id id, uint64_t ts_time)
{ {
@ -166,6 +178,10 @@ static void timestamp_add_table_entry(struct timestamp_table *ts_table,
tse->entry_id = id; tse->entry_id = id;
tse->entry_stamp = ts_time - ts_table->base_time; tse->entry_stamp = ts_time - ts_table->base_time;
if (IS_ENABLED(CONFIG_TIMESTAMPS_ON_CONSOLE))
printk(BIOS_SPEW, "Timestamp - %s: %" PRIu64 "\n",
timestamp_name(id), ts_time);
if (ts_table->num_entries == ts_table->max_entries) if (ts_table->num_entries == ts_table->max_entries)
printk(BIOS_ERR, "ERROR: Timestamp table full\n"); printk(BIOS_ERR, "ERROR: Timestamp table full\n");
} }