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| author | Jiaxun Yang <jiaxun.yang@flygoat.com> | 2024-06-12 10:54:30 +0200 |
|---|---|---|
| committer | Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2024-07-03 16:48:06 +0200 |
| commit | 426fa8e4fe7bb914b5977cbce453a9926bf5b2e6 (patch) | |
| tree | 12528203732b785602f385f04e12ecb909c5b230 /arch/mips/Kconfig | |
| parent | MIPS: csrc-r4k: Apply verification clocksource flags (diff) | |
| download | linux-426fa8e4fe7bb914b5977cbce453a9926bf5b2e6.tar.xz linux-426fa8e4fe7bb914b5977cbce453a9926bf5b2e6.zip | |
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>
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 1236ea122061..c14192514e9d 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1084,6 +1084,7 @@ config CSRC_IOASIC config CSRC_R4K select CLOCKSOURCE_WATCHDOG if CPU_FREQ + select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT bool config CSRC_SB1250 |