diff options
| author | Pekka Enberg <penberg@kernel.org> | 2011-11-01 14:58:22 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-11-11 10:22:55 +0100 |
| commit | 176239153049a023d060ce95b05f7ef31667e362 (patch) | |
| tree | fce64421a695752fc9dfa9fa2331c11f95083146 /arch/x86 | |
| parent | x86, mm: Prepare zone_sizes_init() for unification (diff) | |
| download | linux-176239153049a023d060ce95b05f7ef31667e362.tar.xz linux-176239153049a023d060ce95b05f7ef31667e362.zip | |
x86, mm: Unify zone_sizes_init()
Now that zone_sizes_init() is identical on 32-bit and 64-bit,
move the code to arch/x86/mm/init.c and use it for both
architectures.
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
Link: http://lkml.kernel.org/r/1320155902-10424-7-git-send-email-penberg@kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/init.h | 2 | ||||
| -rw-r--r-- | arch/x86/mm/init.c | 23 | ||||
| -rw-r--r-- | arch/x86/mm/init_32.c | 19 | ||||
| -rw-r--r-- | arch/x86/mm/init_64.c | 19 |
4 files changed, 25 insertions, 38 deletions
diff --git a/arch/x86/include/asm/init.h b/arch/x86/include/asm/init.h index 8dbe353e41e1..adcc0ae73d09 100644 --- a/arch/x86/include/asm/init.h +++ b/arch/x86/include/asm/init.h @@ -5,6 +5,8 @@ extern void __init early_ioremap_page_table_range_init(void); #endif +extern void __init zone_sizes_init(void); + extern unsigned long __init kernel_physical_mapping_init(unsigned long start, unsigned long end, diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c index 87488b93a65c..2426b60bb409 100644 --- a/arch/x86/mm/init.c +++ b/arch/x86/mm/init.c @@ -3,6 +3,7 @@ #include <linux/ioport.h> #include <linux/swap.h> #include <linux/memblock.h> +#include <linux/bootmem.h> /* for max_low_pfn */ #include <asm/cacheflush.h> #include <asm/e820.h> @@ -15,6 +16,7 @@ #include <asm/tlbflush.h> #include <asm/tlb.h> #include <asm/proto.h> +#include <asm/dma.h> /* for MAX_DMA_PFN */ unsigned long __initdata pgt_buf_start; unsigned long __meminitdata pgt_buf_end; @@ -392,3 +394,24 @@ void free_initrd_mem(unsigned long start, unsigned long end) free_init_pages("initrd memory", start, PAGE_ALIGN(end)); } #endif + +void __init zone_sizes_init(void) +{ + unsigned long max_zone_pfns[MAX_NR_ZONES]; + + memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); + +#ifdef CONFIG_ZONE_DMA + max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN; +#endif +#ifdef CONFIG_ZONE_DMA32 + max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN; +#endif + max_zone_pfns[ZONE_NORMAL] = max_low_pfn; +#ifdef CONFIG_HIGHMEM + max_zone_pfns[ZONE_HIGHMEM] = max_pfn; +#endif + + free_area_init_nodes(max_zone_pfns); +} + diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 27455b958b8d..3bebaed5021c 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -674,25 +674,6 @@ void __init initmem_init(void) } #endif /* !CONFIG_NEED_MULTIPLE_NODES */ -static void __init zone_sizes_init(void) -{ - unsigned long max_zone_pfns[MAX_NR_ZONES]; - - memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); -#ifdef CONFIG_ZONE_DMA - max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN; -#endif -#ifdef CONFIG_ZONE_DMA32 - max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN; -#endif - max_zone_pfns[ZONE_NORMAL] = max_low_pfn; -#ifdef CONFIG_HIGHMEM - max_zone_pfns[ZONE_HIGHMEM] = max_pfn; -#endif - - free_area_init_nodes(max_zone_pfns); -} - void __init setup_bootmem_allocator(void) { printk(KERN_INFO " mapped low ram: 0 - %08lx\n", diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index 06c4360cf796..6fcce7d34555 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -612,25 +612,6 @@ void __init initmem_init(void) } #endif -static void __init zone_sizes_init(void) -{ - unsigned long max_zone_pfns[MAX_NR_ZONES]; - - memset(max_zone_pfns, 0, sizeof(max_zone_pfns)); -#ifdef CONFIG_ZONE_DMA - max_zone_pfns[ZONE_DMA] = MAX_DMA_PFN; -#endif -#ifdef CONFIG_ZONE_DMA32 - max_zone_pfns[ZONE_DMA32] = MAX_DMA32_PFN; -#endif - max_zone_pfns[ZONE_NORMAL] = max_low_pfn; -#ifdef CONFIG_HIGHMEM - max_zone_pfns[ZONE_HIGHMEM] = max_pfn; -#endif - - free_area_init_nodes(max_zone_pfns); -} - void __init paging_init(void) { sparse_memory_present_with_active_regions(MAX_NUMNODES); |