Try to allocate dynamic reserved memory regions with "alloc-ranges" close to other static regions by choosing between allocating them bottom-up or top-down. This keeps the reserved memory regions closer together rather than potentially having them spread all over the RAM. Also make the allocation order of dynamic reserved memory regions deterministic so it doesn't change randomly when adding unrelated reserved memory regions. Signed-off-by: Stephan Gerhold <stephan@xxxxxxxxxxx> --- Changes in v2: - Drop explicit "allocate-bottom-up"/"allocate-top-down" properties Instead, try to guess in the implementation based on the already available information in the DT. (Rob) - Drop examples that were just included to show the motivation. They are still available on v1 if needed. - Link to v1: https://lore.kernel.org/r/20230510-dt-resv-bottom-up-v1-0-3bf68873dbed@xxxxxxxxxxx --- Stephan Gerhold (2): of: reserved_mem: Try to keep range allocations contiguous of: reserved_mem: Use stable allocation order drivers/of/of_reserved_mem.c | 60 ++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 58 insertions(+), 2 deletions(-) --- base-commit: b16049b21162bb649cdd8519642a35972b7910fe change-id: 20230510-dt-resv-bottom-up-68d71ff6628f Best regards, -- Stephan Gerhold <stephan@xxxxxxxxxxx>
