x86: account overlapped mappings in max_pfn_mapped

[linux-2.6-omap-h63xx.git] / include / asm-x86 / page_64.h

diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index 143546073b958097eef072e4d8849b820995232b..6ea72859c491abaeec409afcdeb548e1c464192e 100644 (file)
--- a/include/asm-x86/page_64.h
+++ b/include/asm-x86/page_64.h
@@ -5,7 +5,7 @@
 
 #define THREAD_ORDER   1
 #define THREAD_SIZE  (PAGE_SIZE << THREAD_ORDER)
-#define CURRENT_MASK (~(THREAD_SIZE-1))
+#define CURRENT_MASK (~(THREAD_SIZE - 1))
 
 #define EXCEPTION_STACK_ORDER 0
 #define EXCEPTION_STKSZ (PAGE_SIZE << EXCEPTION_STACK_ORDER)
@@ -48,10 +48,10 @@
 #define __VIRTUAL_MASK_SHIFT   48
 
 /*
- * Kernel image size is limited to 128 MB (see level2_kernel_pgt in
+ * Kernel image size is limited to 512 MB (see level2_kernel_pgt in
  * arch/x86/kernel/head_64.S), and it is mapped here:
  */
-#define KERNEL_IMAGE_SIZE      (128*1024*1024)
+#define KERNEL_IMAGE_SIZE      (512 * 1024 * 1024)
 #define KERNEL_IMAGE_START     _AC(0xffffffff80000000, UL)
 
 #ifndef __ASSEMBLY__
@@ -59,7 +59,6 @@ void clear_page(void *page);
 void copy_page(void *to, void *from);
 
 extern unsigned long end_pfn;
-extern unsigned long end_pfn_map;
 extern unsigned long phys_base;
 
 extern unsigned long __phys_addr(unsigned long);
@@ -81,6 +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