Subject: [PATCH v3 12/29] nios2: introduce arch_zone_limits_init()

From: Mike Rapoport <[email-masked]>
Date: Sun, 11 Jan 2026 10:20:46 +0200

From: "Mike Rapoport (Microsoft)" <[email-masked]>

Move calculations of zone limits to a dedicated arch_zone_limits_init()
function.

Later MM core will use this function as an architecture specific callback
during nodes and zones initialization and thus there won't be a need to
call free_area_init() from every architecture.

Signed-off-by: Mike Rapoport (Microsoft) <[email-masked]>
Acked-by: Dinh Nguyen <[email-masked]>
---
 arch/nios2/mm/init.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/arch/nios2/mm/init.c b/arch/nios2/mm/init.c
index 94efa3de3933..2cb666a65d9e 100644
--- a/arch/nios2/mm/init.c
+++ b/arch/nios2/mm/init.c
@@ -38,6 +38,11 @@
 
 pgd_t *pgd_current;
 
+void __init arch_zone_limits_init(unsigned long *max_zone_pfns)
+{
+	max_zone_pfns[ZONE_NORMAL] = max_low_pfn;
+}
+
 /*
  * paging_init() continues the virtual memory environment setup which
  * was begun by the code in arch/head.S.
@@ -51,8 +56,7 @@ void __init paging_init(void)
 	pagetable_init();
 	pgd_current = swapper_pg_dir;
 
-	max_zone_pfn[ZONE_NORMAL] = max_low_pfn;
-
+	arch_zone_limits_init(max_zone_pfn);
 	/* pass the memory from the bootmem allocator to the main allocator */
 	free_area_init(max_zone_pfn);
 
-- 
2.51.0