diff options
Diffstat (limited to 'src/cpu/x86/tsc')
| -rw-r--r-- | src/cpu/x86/tsc/delay_tsc.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/cpu/x86/tsc/delay_tsc.c b/src/cpu/x86/tsc/delay_tsc.c index 0e2a9c0faf..b8f250394f 100644 --- a/src/cpu/x86/tsc/delay_tsc.c +++ b/src/cpu/x86/tsc/delay_tsc.c @@ -4,6 +4,7 @@ #include <cpu/x86/tsc.h> #include <smp/spinlock.h> #include <delay.h> +#include <thread.h> #if !defined(__PRE_RAM__) @@ -176,6 +177,9 @@ void udelay(unsigned us) unsigned long long current; unsigned long long clocks; + if (!thread_yield_microseconds(us)) + return; + start = rdtscll(); clocks = us; clocks *= get_clocks_per_usec(); |