[PATCH 1/3] loongarch: Call arch_mem_init() before platform_init() in the init sequence

From: Oreoluwa Babatunde
Date: Fri Feb 09 2024 - 19:32:39 EST

The platform_init() function which is called during device bootup
contains a few calls to memblock_alloc().
This is an issue because these allocations are done before reserved
memory regions are set aside in arch_mem_init().
This means that there is a possibility for memblock to allocate memory
from any of the reserved memory regions.

Hence, move the call to arch_mem_init() to be earlier in the init
sequence so that all reserved memory is set aside before any allocations
are made with memblock.

Signed-off-by: Oreoluwa Babatunde <quic_obabatun@xxxxxxxxxxx>
arch/loongarch/kernel/setup.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/loongarch/kernel/setup.c b/arch/loongarch/kernel/setup.c
index edf2bba..66c307c 100644
--- a/arch/loongarch/kernel/setup.c
+++ b/arch/loongarch/kernel/setup.c
@@ -597,8 +597,8 @@ void __init setup_arch(char **cmdline_p)

- platform_init();
+ platform_init();