forked from rrcarlosr/Jetpack
60 lines
1.6 KiB
Diff
60 lines
1.6 KiB
Diff
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From 30082152c2a4d7f0827db07c4766051e41a250bf Mon Sep 17 00:00:00 2001
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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 070/352] rt: Provide PREEMPT_RT_BASE config switch
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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 | 19 +++++++++++++++++--
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1 file changed, 17 insertions(+), 2 deletions(-)
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diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt
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index 3f9c974..c669134 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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@@ -33,9 +40,9 @@ 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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- 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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@@ -52,6 +59,14 @@ 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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--
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2.7.4
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