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Add README files and configuration support for the shared memory logic

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Gregory Nutt 2014-09-23 07:11:47 -06:00
parent bc01f422df
commit 1c0433bdf4
1 changed files with 36 additions and 0 deletions
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36
arch/Kconfig
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@ -199,6 +199,12 @@ config ARCH_HEAP_VBASE
---help---
The virtual address of the beginning of the heap region.
config ARCH_SHM_VBASE
hex "Virtual heap base"
depends on MM_SHM
---help---
The virtual address of the beginning of the shared memory region.
config ARCH_TEXT_NPAGES
int "Max .text pages"
default 1
@ -223,6 +229,36 @@ config ARCH_HEAP_NPAGES
This, along with knowledge of the page size, determines the size of
the heap virtual address space. Default is 1.
if MM_SHM
config ARCH_SHM_MAXREGIONS
int "Max shared memory regions"
default 1
---help---
The maximum number of regions that can allocated for the shared
memory space. This hard-coded value permits static allocation of
the shared memory data structures and serves no other purpose.
Default is 1.
The size of the virtual shared memory address space is then
determined by the product of the maximum number of regions, the
maximum number of pages per region, and the configured size of
each page.
config ARCH_SHM_NPAGES
int "Max shared memory pages"
default 1
---help---
The maximum number of pages that can allocated per region for the shared memory
region. Default is 1.
The size of the virtual shared memory address space is then
determined by the product of the maximum number of regions, the
maximum number of pages per region, and the configured size of
each page.
endif # MM_SHM
config ARCH_STACK_DYNAMIC
bool "Dynamic user stack"
default n