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(parent: 7190401) | patch
MIPS: csrc-r4k: Select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT
authorJiaxun Yang <jiaxun.yang@flygoat.com>
Wed, 12 Jun 2024 08:54:30 +0000 (09:54 +0100)
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>
Wed, 3 Jul 2024 14:48:06 +0000 (16:48 +0200)
commit426fa8e4fe7bb914b5977cbce453a9926bf5b2e6
tree12528203732b785602f385f04e12ecb909c5b230tree
parent7190401fc56fb5f02ee3d04476778ab000bbaf32commit | diff
MIPS: csrc-r4k: Select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT

csrc-r4k suffers from SMP synchronization overhead.

Select HAVE_UNSTABLE_SCHED_CLOCK to workaround drift
between the CPUs on the system. HAVE_UNSTABLE_SCHED_CLOCK
requires cmpxchg64, so enable it for 64 bits only.

Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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