[PATCH v2 05/28] csky: introduce arch_zone_limits_init()
From: Mike Rapoport <rppt@kernel.org>
Date: 2026-01-02 07:01:36
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:
c-sky architecture, the rest · Maintainers:
Guo Ren, 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> Acked-by: Guo Ren <guoren@kernel.org> --- arch/csky/kernel/setup.c | 12 +++++++++--- 1 file changed, 9 insertions(+), 3 deletions(-)
diff --git a/arch/csky/kernel/setup.c b/arch/csky/kernel/setup.c
index e0d6ca86ea8c..8968815d93e6 100644
--- a/arch/csky/kernel/setup.c
+++ b/arch/csky/kernel/setup.c@@ -51,6 +51,14 @@ static void __init setup_initrd(void) } #endif +void __init arch_zone_limits_init(unsigned long *max_zone_pfns) +{ + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; +#ifdef CONFIG_HIGHMEM + max_zone_pfns[ZONE_HIGHMEM] = max_pfn; +#endif +} + static void __init csky_memblock_init(void) { unsigned long lowmem_size = PFN_DOWN(LOWMEM_LIMIT - PHYS_OFFSET_OFFSET);
@@ -83,12 +91,9 @@ static void __init csky_memblock_init(void) setup_initrd(); #endif - max_zone_pfn[ZONE_NORMAL] = max_low_pfn; - mmu_init(min_low_pfn, max_low_pfn); #ifdef CONFIG_HIGHMEM - max_zone_pfn[ZONE_HIGHMEM] = max_pfn; highstart_pfn = max_low_pfn; highend_pfn = max_pfn;
@@ -97,6 +102,7 @@ static void __init csky_memblock_init(void) dma_contiguous_reserve(0); + arch_zone_limits_init(max_zone_pfn); free_area_init(max_zone_pfn); }
--
2.51.0