| Subject: rt: Provide PREEMPT_RT_BASE config switch |
| From: Thomas Gleixner <tglx@linutronix.de> |
| Date: Fri, 17 Jun 2011 12:39:57 +0200 |
| |
| 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 <tglx@linutronix.de> |
| --- |
| kernel/Kconfig.preempt | 19 +++++++++++++++++-- |
| 1 file changed, 17 insertions(+), 2 deletions(-) |
| |
| --- 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 |
