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| author | Pekka Enberg <penberg@kernel.org> | 2011-11-01 15:58:22 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-11-11 10:22:55 +0100 |
| commit | 176239153049a023d060ce95b05f7ef31667e362 (patch) | |
| tree | fce64421a695752fc9dfa9fa2331c11f95083146 /arch/x86/mm/init.c | |
| parent | 248b52b97da7a712d2263a51d8d84c959f38ef75 (diff) | |
| download | lwn-176239153049a023d060ce95b05f7ef31667e362.tar.gz lwn-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/mm/init.c')
| -rw-r--r-- | arch/x86/mm/init.c | 23 |
1 files changed, 23 insertions, 0 deletions
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); +} + |