From: Bob Moore Date: Wed, 30 Jul 2014 04:21:19 +0000 (+0800) Subject: ACPICA: Debug object: Add current value of Timer() to debug line prefix. X-Git-Tag: firefly_0821_release~176^2~3467^2~2^2~8 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=1aae3b97cee2f4904771d61040c19693e7b1a530;p=firefly-linux-kernel-4.4.55.git 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 Signed-off-by: Lv Zheng Signed-off-by: Rafael J. Wysocki --- diff --git a/drivers/acpi/acpica/exdebug.c b/drivers/acpi/acpica/exdebug.c index 4cfc3d3b5c97..6fbfad47518c 100644 --- a/drivers/acpi/acpica/exdebug.c +++ b/drivers/acpi/acpica/exdebug.c @@ -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 */