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Diffstat (limited to 'nuttx/mm/Kconfig')
-rw-r--r-- | nuttx/mm/Kconfig | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/nuttx/mm/Kconfig b/nuttx/mm/Kconfig new file mode 100644 index 000000000..000217dc5 --- /dev/null +++ b/nuttx/mm/Kconfig @@ -0,0 +1,26 @@ +# +# For a description of the syntax of this configuration file, +# see misc/tools/kconfig-language.txt. +# + +config MM_REGIONS + int "Number of memory regions" + default 1 + ---help--- + If the architecture includes multiple, non-contiguous regions of + memory to allocate from, this specifies the number of memory regions + that the memory manager must handle and enables the API + mm_addregion(start, end); + +config MM_SMALL + bool "Small memory model" + default n + ---help--- + Each memory allocation has a small allocation overhead. The size + of that overhead is normally determined by the "width" of the + address support by the MCU. MCUs that support 16-bit addressability + have smaller overhead than devices that support 32-bit addressability. + However, there are many MCUs that support 32-bit addressability *but* + have internal SRAM of size less than or equal to 64Kb. In this case, + CONFIG_MM_SMALL can be defined so that those MCUs will also benefit + from the smaller, 16-bit-based allocation overhead. |