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authorAndi Kleen <andi@firstfloor.org>2008-03-12 03:53:28 +0100
committerIngo Molnar <mingo@elte.hu>2008-04-17 17:41:30 +0200
commitcc6150321903ca4c3bc9d53b0cdafb05d77d64d0 (patch)
treecfdb0ee512da7da82c15d4b1aae66d1f25640f31 /include/asm-x86/page_64.h
parent67794292c8615b05f46419ba8d4fd99e7c9a5db9 (diff)
x86: account overlapped mappings in max_pfn_mapped
When end_pfn is not aligned to 2MB (or 1GB) then the kernel might map more memory than end_pfn. Account this in max_pfn_mapped. Signed-off-by: Andi Kleen <ak@suse.de> Cc: andreas.herrmann3@amd.com Cc: mingo@elte.hu Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'include/asm-x86/page_64.h')
-rw-r--r--include/asm-x86/page_64.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index 54d5db63485..6ea72859c49 100644
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -80,6 +80,9 @@ typedef struct { pteval_t pte; } pte_t;
#define vmemmap ((struct page *)VMEMMAP_START)
+extern unsigned long init_memory_mapping(unsigned long start,
+ unsigned long end);
+
#endif /* !__ASSEMBLY__ */
#ifdef CONFIG_FLATMEM