ACPICA: Debug object: Add current value of Timer() to debug line prefix.
Simplifies timing of things like control method execution.
[zetalog: fixing 64-bit division link error]
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Lv Zheng <lv.zheng@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c
index 4cfc3d3..6fbfad4 100644
--- a/drivers/acpi/acpica/exdebug.c
+++ b/drivers/acpi/acpica/exdebug.c
@@ -75,6 +75,7 @@
u32 level, u32 index)
{
u32 i;
+ u32 timer;
ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
@@ -86,11 +87,19 @@
}
/*
+ * We will emit the current timer value (in microseconds) with each
+ * debug output. Only need the lower 26 bits. This allows for 67
+ * million microseconds or 67 seconds before rollover.
+ */
+ timer = ((u32)acpi_os_get_timer() / 10); /* (100 nanoseconds to microseconds) */
+ timer &= 0x03FFFFFF;
+
+ /*
* Print line header as long as we are not in the middle of an
* object display
*/
if (!((level > 0) && index == 0)) {
- acpi_os_printf("[ACPI Debug] %*s", level, " ");
+ acpi_os_printf("[ACPI Debug %.8u] %*s", timer, level, " ");
}
/* Display the index for package output only */