rk3568 rt init

hc

2023-11-06 e3e12f52b214121840b44c91de5b3e5af5d3eb84

 kernel/arch/powerpc/Kconfig
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@@ -105,10 +105,11 @@
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 config RWSEM_GENERIC_SPINLOCK
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 	bool
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+	default y if PREEMPT_RT_FULL
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 config RWSEM_XCHGADD_ALGORITHM
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 	bool
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-	default y
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+	default y if !PREEMPT_RT_FULL
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 config GENERIC_LOCKBREAK
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 	bool
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@@ -216,6 +217,7 @@
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 	select HAVE_HARDLOCKUP_DETECTOR_PERF	if PERF_EVENTS && HAVE_PERF_EVENTS_NMI && !HAVE_HARDLOCKUP_DETECTOR_ARCH
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 	select HAVE_PERF_REGS
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 	select HAVE_PERF_USER_STACK_DUMP
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+	select HAVE_PREEMPT_LAZY
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 	select HAVE_RCU_TABLE_FREE		if SMP
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 	select HAVE_REGS_AND_STACK_ACCESS_API
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 	select HAVE_RELIABLE_STACKTRACE		if PPC64 && CPU_LITTLE_ENDIAN
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@@ -399,7 +401,7 @@
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 config HIGHMEM
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 	bool "High memory support"
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-	depends on PPC32
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+	depends on PPC32 && !PREEMPT_RT_FULL
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 source kernel/Kconfig.hz
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