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CONFIG_NOCACHE_MEMORY¶
Support for uncached memory
Type: bool
Help¶
Add a “nocache” read-write memory section that is configured to not be cached. This memory section can be used to perform DMA transfers when cache coherence issues are not optimal or can not be solved using cache maintenance operations.
Direct dependencies¶
ARCH_HAS_NOCACHE_MEMORY_SUPPORT
(Includes any dependencies from if’s and menus.)
Defaults¶
No defaults. Implicitly defaults to n.
Symbols that select this symbol¶
Kconfig definition¶
At arch/Kconfig:246
Included via Kconfig:10 → Kconfig.zephyr:29
Menu path: (top menu) → General Architecture Options
config NOCACHE_MEMORY
bool
prompt "Support for uncached memory" if ARCH_HAS_NOCACHE_MEMORY_SUPPORT
depends on ARCH_HAS_NOCACHE_MEMORY_SUPPORT
help
Add a "nocache" read-write memory section that is configured to
not be cached. This memory section can be used to perform DMA
transfers when cache coherence issues are not optimal or can not
be solved using cache maintenance operations.
(Definitions include propagated dependencies, including from if’s and menus.)