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| author | Richard Braun <rbraun@sceen.net> | 2018-07-07 16:15:19 +0200 |
|---|---|---|
| committer | Richard Braun <rbraun@sceen.net> | 2018-07-07 16:16:15 +0200 |
| commit | b17e3aa862e30b66e93dba70aaf3ece1e5e2ed3f (patch) | |
| tree | f36b1c4a93fc6bf6c85ed6e90c90f33e962b5970 /arch/x86/machine/cpu.h | |
| parent | 28166f110880bf561283c48c0d721c2eb4e86e1b (diff) | |
x86/cpu: turn cpu_delay into a compiler barrier
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); |