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Message-ID: <172590286080.2215.12021157816973502206.tip-bot2@tip-bot2>
Date: Mon, 09 Sep 2024 17:27:40 -0000
From: "tip-bot2 for Sebastian Andrzej Siewior" <tip-bot2@...utronix.de>
To: linux-tip-commits@...r.kernel.org
Cc: Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
 Thomas Gleixner <tglx@...utronix.de>, Will Deacon <will@...nel.org>,
 x86@...nel.org, linux-kernel@...r.kernel.org
Subject: [tip: sched/rt] arm64: Allow to enable PREEMPT_RT.

The following commit has been merged into the sched/rt branch of tip:

Commit-ID:     699fd9104967cc3b0826bb0b64a9f1a496121786
Gitweb:        https://git.kernel.org/tip/699fd9104967cc3b0826bb0b64a9f1a496121786
Author:        Sebastian Andrzej Siewior <bigeasy@...utronix.de>
AuthorDate:    Fri, 06 Sep 2024 12:59:05 +02:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Mon, 09 Sep 2024 19:24:11 +02:00

arm64: Allow to enable PREEMPT_RT.

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 <bigeasy@...utronix.de>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Will Deacon <will@...nel.org>
Link: https://lore.kernel.org/all/20240906111841.562402-3-bigeasy@linutronix.de

---
 arch/arm64/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index a2f8ff3..e68ea64 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -99,6 +99,7 @@ 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

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