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arch/xtensa/Kconfig: Add help for the seperate internal heap.

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Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>
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Abdelatif Guettouche 2020-10-13 10:46:41 +01:00 committed by Alan Carvalho de Assis
parent 5ac5655fa4
commit 34ad33c8b2
1 changed files with 8 additions and 0 deletions
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arch/xtensa/Kconfig
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@ -97,6 +97,14 @@ config XTENSA_CP_INITSET
config XTENSA_USE_SEPERATE_IMEM
bool "Use a seperate heap for internal memory"
default n
help
This is a seperate internal heap that's used by drivers when certain operations
are not possible with the provided buffer(s).
Mainly, when the provided buffer comes from external RAM and a DMA or flash
operation is going to be performed.
This seperate heap will be part of the internal DRAM. It starts right after .data
and ends at the configurable size given by the OPTION XTENSA_IMEM_REGION_SIZE.
config XTENSA_IMEM_REGION_SIZE
hex "DRAM region size for internal use"