68 lines
2.0 KiB
Diff
68 lines
2.0 KiB
Diff
From b67f13e65cdfce55fab8dec3f7d102bf90e0fff3 Mon Sep 17 00:00:00 2001
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Message-Id: <b67f13e65cdfce55fab8dec3f7d102bf90e0fff3.1601675151.git.zanussi@kernel.org>
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In-Reply-To: <5b5a156f9808b1acf1205606e03da117214549ea.1601675151.git.zanussi@kernel.org>
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References: <5b5a156f9808b1acf1205606e03da117214549ea.1601675151.git.zanussi@kernel.org>
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From: Thomas Gleixner <tglx@linutronix.de>
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Date: Fri, 17 Jun 2011 12:39:57 +0200
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Subject: [PATCH 036/333] rt: Provide PREEMPT_RT_BASE config switch
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.19/older/patches-4.19.148-rt64.tar.xz
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Introduce PREEMPT_RT_BASE which enables parts of
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PREEMPT_RT_FULL. Forces interrupt threading and enables some of the RT
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substitutions for testing.
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Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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---
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kernel/Kconfig.preempt | 21 ++++++++++++++++++---
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1 file changed, 18 insertions(+), 3 deletions(-)
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diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt
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index cd1655122ec0..027db5976c2f 100644
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--- a/kernel/Kconfig.preempt
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+++ b/kernel/Kconfig.preempt
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@@ -1,3 +1,10 @@
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+config PREEMPT
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+ bool
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+ select PREEMPT_COUNT
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+
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+config PREEMPT_RT_BASE
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+ bool
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+ select PREEMPT
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choice
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prompt "Preemption Model"
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@@ -34,10 +41,10 @@ config PREEMPT_VOLUNTARY
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Select this if you are building a kernel for a desktop system.
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-config PREEMPT
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+config PREEMPT__LL
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bool "Preemptible Kernel (Low-Latency Desktop)"
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depends on !ARCH_NO_PREEMPT
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- select PREEMPT_COUNT
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+ select PREEMPT
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select UNINLINE_SPIN_UNLOCK if !ARCH_INLINE_SPIN_UNLOCK
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help
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This option reduces the latency of the kernel by making
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@@ -54,7 +61,15 @@ config PREEMPT
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embedded system with latency requirements in the milliseconds
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range.
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+config PREEMPT_RTB
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+ bool "Preemptible Kernel (Basic RT)"
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+ select PREEMPT_RT_BASE
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+ help
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+ This option is basically the same as (Low-Latency Desktop) but
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+ enables changes which are preliminary for the full preemptible
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+ RT kernel.
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+
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endchoice
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config PREEMPT_COUNT
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- bool
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\ No newline at end of file
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+ bool
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--
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2.17.1
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