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arm64: Allow to enable PREEMPT_RT.

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It is really time.

arm64 has all the required architecture related changes, that have been
identified over time, in order to enable PREEMPT_RT. With the recent
printk changes, the last known road block has been addressed.

Allow to enable PREEMPT_RT on arm64.

Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Acked-by: Will Deacon <[email protected]>
Link: https://lore.kernel.org/all/[email protected]
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Sebastian Andrzej Siewior authored and Thomas Gleixner committed 2024-09-17 11:06:02 +02:00
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commit d8fccd9ca5
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arch/arm64/Kconfig
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@@ -100,6 +100,7 @@ config ARM64
select ARCH_SUPPORTS_NUMA_BALANCING
select ARCH_SUPPORTS_PAGE_TABLE_CHECK
select ARCH_SUPPORTS_PER_VMA_LOCK
select ARCH_SUPPORTS_RT
select ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH
select ARCH_WANT_COMPAT_IPC_PARSE_VERSION if COMPAT
select ARCH_WANT_DEFAULT_BPF_JIT