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@xxxxxxxxxxx> --- v2: Depends on SMP as well --- arch/mips/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index f1aa1bf11166..656df5d4097d 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1083,6 +1083,7 @@ config CSRC_IOASIC config CSRC_R4K select CLOCKSOURCE_WATCHDOG if CPU_FREQ + select HAVE_UNSTABLE_SCHED_CLOCK if SMP && 64BIT bool config CSRC_SB1250 -- 2.43.0
