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arch/x86: Move cpu_relax()

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It's not related to spinlocks and the actual implementation
was also guarded by CONFIG(SMP).

With a single call-site in x86-specific code, empty stubs
for other arch are currently not necessary.

Also drop an unused included on a nearby line.

Change-Id: I00439e9c1d10c943ab5e404f5d687d316768fa16
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43808
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kyösti Mälkki 2020-07-19 20:04:24 +03:00 • committed by Patrick Georgi
commit 0199d3bd7f
6 changed files with 7 additions and 12 deletions
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1
src/include/smp/spinlock.h
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@ -11,7 +11,6 @@
#define spin_unlock_wait(lock) do {} while (0)
#define spin_lock(lock) do {} while (0)
#define spin_unlock(lock) do {} while (0)
#define cpu_relax() do {} while (0)
#endif
#endif /* SMP_SPINLOCK_H */