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ACPICA: Debug object: Add current value of Timer() to debug line prefix.

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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>
This commit is contained in:
Bob Moore 2014-07-30 12:21:19 +08:00 committed by Rafael J. Wysocki
parent 73bbca0486
commit 1aae3b97ce
1 changed files with 10 additions and 1 deletions
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11
drivers/acpi/acpica/exdebug.c
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@ -75,6 +75,7 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
u32 level, u32 index)
{
u32 i;
u32 timer;
ACPI_FUNCTION_TRACE_PTR(ex_do_debug_object, source_desc);
@ -85,12 +86,20 @@ acpi_ex_do_debug_object(union acpi_operand_object *source_desc,
return_VOID;
}
/*
* 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 */