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drivers/mm: Add API to query memory regions

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Some systems may need to query the available memory regions in runtime.
For those, this patch adds a simple API that memory management drivers
can implement to provide such discovery.

A small test also added to exercise the default, empty implementation.

Signed-off-by: Ederson de Souza <ederson.desouza@intel.com>
This commit is contained in:
Ederson de Souza 2022-08-09 16:04:50 -07:00 • committed by Anas Nashif
commit edd524b4e3
6 changed files with 105 additions and 0 deletions
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21
drivers/mm/mm_drv_common.c
View file

@ -469,3 +469,24 @@ out:
__weak FUNC_ALIAS(sys_mm_drv_simple_update_region_flags,
sys_mm_drv_update_region_flags, int);
const struct sys_mm_drv_region *sys_mm_drv_simple_query_memory_regions(void)
{
const static struct sys_mm_drv_region empty[] = {
{ }
};
return empty;
}
__weak FUNC_ALIAS(sys_mm_drv_simple_query_memory_regions,
sys_mm_drv_query_memory_regions,
const struct sys_mm_drv_region *);
void sys_mm_drv_simple_query_memory_regions_free(const struct sys_mm_drv_region *regions)
{
ARG_UNUSED(regions);
}
__weak FUNC_ALIAS(sys_mm_drv_simple_query_memory_regions_free,
sys_mm_drv_query_memory_regions_free, void);