[PATCH 09/28] microblaze: introduce arch_zone_limits_init()
From: Mike Rapoport <rppt@kernel.org>
Date: 2025-12-28 12:42:29
Also in:
linux-alpha, linux-cxl, linux-doc, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-s390, linux-sh, linux-um, lkml, loongarch, sparclinux
Subsystem:
microblaze architecture, the rest · Maintainers:
Michal Simek, Linus Torvalds
From: "Mike Rapoport (Microsoft)" <rppt@kernel.org> 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) <rppt@kernel.org> --- arch/microblaze/mm/init.c | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index 31d475cdb1c5..54da60b81094 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c@@ -54,6 +54,16 @@ static void __init highmem_init(void) } #endif /* CONFIG_HIGHMEM */ +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ +#ifdef CONFIG_HIGHMEM + max_zone_pfns[ZONE_DMA] = max_low_pfn; + max_zone_pfns[ZONE_HIGHMEM] = max_pfn; +#else + max_zone_pfns[ZONE_DMA] = max_pfn; +#endif +} + /* * paging_init() sets up the page tables - in fact we've already done this. */
@@ -71,13 +81,8 @@ static void __init paging_init(void) #ifdef CONFIG_HIGHMEM highmem_init(); - - zones_size[ZONE_DMA] = max_low_pfn; - zones_size[ZONE_HIGHMEM] = max_pfn; -#else - zones_size[ZONE_DMA] = max_pfn; #endif - + arch_zone_limits_init(zones_size); /* We don't have holes in memory map */ free_area_init(zones_size); }
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2.51.0