diff options
| -rw-r--r-- | include/time.h | 11 | ||||
| -rw-r--r-- | lib/time.c | 5 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h index e99f9c8012..3f00e68713 100644 --- a/include/time.h +++ b/include/time.h @@ -17,6 +17,17 @@ unsigned long get_timer(unsigned long base); unsigned long timer_get_us(void); uint64_t get_timer_us(uint64_t base); +/** + * get_timer_us_long() - Get the number of elapsed microseconds + * + * This uses 32-bit arithmetic on 32-bit machines, which is enough to handle + * delays of over an hour. For 64-bit machines it uses a 64-bit value. + * + *@base: Base time to consider + *@return elapsed time since @base + */ +unsigned long get_timer_us_long(unsigned long base); + /* * timer_test_add_offset() * diff --git a/lib/time.c b/lib/time.c index 65db0f6cda..47f8c84327 100644 --- a/lib/time.c +++ b/lib/time.c @@ -152,6 +152,11 @@ uint64_t __weak get_timer_us(uint64_t base) return tick_to_time_us(get_ticks()) - base; } +unsigned long __weak get_timer_us_long(unsigned long base) +{ + return timer_get_us() - base; +} + unsigned long __weak notrace timer_get_us(void) { return tick_to_time(get_ticks() * 1000); |