From 30082152c2a4d7f0827db07c4766051e41a250bf Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 17 Jun 2011 12:39:57 +0200 Subject: [PATCH 070/352] rt: Provide PREEMPT_RT_BASE config switch Introduce PREEMPT_RT_BASE which enables parts of PREEMPT_RT_FULL. Forces interrupt threading and enables some of the RT substitutions for testing. Signed-off-by: Thomas Gleixner --- kernel/Kconfig.preempt | 19 +++++++++++++++++-- 1 file changed, 17 insertions(+), 2 deletions(-) diff --git a/kernel/Kconfig.preempt b/kernel/Kconfig.preempt index 3f9c974..c669134 100644 --- a/kernel/Kconfig.preempt +++ b/kernel/Kconfig.preempt @@ -1,3 +1,10 @@ +config PREEMPT + bool + select PREEMPT_COUNT + +config PREEMPT_RT_BASE + bool + select PREEMPT choice prompt "Preemption Model" @@ -33,9 +40,9 @@ config PREEMPT_VOLUNTARY Select this if you are building a kernel for a desktop system. -config PREEMPT +config PREEMPT__LL bool "Preemptible Kernel (Low-Latency Desktop)" - select PREEMPT_COUNT + select PREEMPT select UNINLINE_SPIN_UNLOCK if !ARCH_INLINE_SPIN_UNLOCK help This option reduces the latency of the kernel by making @@ -52,6 +59,14 @@ config PREEMPT embedded system with latency requirements in the milliseconds range. +config PREEMPT_RTB + bool "Preemptible Kernel (Basic RT)" + select PREEMPT_RT_BASE + help + This option is basically the same as (Low-Latency Desktop) but + enables changes which are preliminary for the full preemptible + RT kernel. + endchoice config PREEMPT_COUNT -- 2.7.4