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Kconfig: Hide SMP and USE_SWITCH from unsupported platforms

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Don't present USE_SWITCH and SMP to user applications that are
configuring for platforms that do not support SMP or USE_SWITCH.

Signed-off-by: Sebastian Bøe <sebastian.boe@nordicsemi.no>
This commit is contained in:
Sebastian Bøe 2018-12-27 18:20:56 +01:00 • committed by Anas Nashif
commit f42ed32dc5
2 changed files with 10 additions and 0 deletions
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1
arch/xtensa/Kconfig
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@ -34,6 +34,7 @@ config XTENSA_OMIT_HIGH_INTERRUPTS
config XTENSA_ASM2
bool "New-style Xtensa context switch & interrupt layer"
select USE_SWITCH
select USE_SWITCH_SUPPORTED
help
This selects a new implementation of context switching and
interrupt handling. Advantages are a much lower interrupt

9
kernel/Kconfig
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@ -650,8 +650,10 @@ config MAX_DOMAIN_PARTITIONS
Configure the maximum number of partitions per memory domain.
menu "SMP Options"
config USE_SWITCH
bool "Use new-style _arch_switch instead of __swap"
depends on USE_SWITCH_SUPPORTED
help
The _arch_switch() API is a lower level context switching
primitive than the original __swap mechanism. It is required
@ -660,6 +662,13 @@ config USE_SWITCH
architecture provides both, _arch_switch incurs more somewhat
overhead and may be slower.
config USE_SWITCH_SUPPORTED
bool
help
Indicates whether _arch_switch() API is supported by the
currently enabled platform. This option should be selected by
platforms that implement it.
config SMP
bool "Enable symmetric multithreading support"
depends on USE_SWITCH