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Diffstat (limited to 'arch/x86/machine/cpu.h')
| -rw-r--r-- | arch/x86/machine/cpu.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/machine/cpu.h b/arch/x86/machine/cpu.h index 78857cdc..b94c149d 100644 --- a/arch/x86/machine/cpu.h +++ b/arch/x86/machine/cpu.h @@ -594,6 +594,8 @@ uint64_t cpu_get_freq(void); /* * Busy-wait for a given amount of time, in microseconds. + * + * Implies a compiler barrier. */ void cpu_delay(unsigned long usecs); |