x86: introduce init_memory_mapping for 32bit #1

[linux-2.6] / include / asm-x86 / page_32.h

diff --git a/include/asm-x86/page_32.h b/include/asm-x86/page_32.h
index 50b33ebcf851f385dfa8bd9788cbb94371df2df4..4ae1daba129b7df4a660bbf19c15355d022d1b07 100644 (file)
--- a/include/asm-x86/page_32.h
+++ b/include/asm-x86/page_32.h
@@ -22,7 +22,8 @@
 
 
 #ifdef CONFIG_X86_PAE
-#define __PHYSICAL_MASK_SHIFT  36
+/* 44=32+12, the limit we can fit into an unsigned long pfn */
+#define __PHYSICAL_MASK_SHIFT  44
 #define __VIRTUAL_MASK_SHIFT   32
 #define PAGETABLE_LEVELS       3
 
@@ -91,6 +92,14 @@ extern int sysctl_legacy_va_layout;
 #define VMALLOC_RESERVE                ((unsigned long)__VMALLOC_RESERVE)
 #define MAXMEM                 (-__PAGE_OFFSET - __VMALLOC_RESERVE)
 
+extern void find_low_pfn_range(void);
+extern unsigned long init_memory_mapping(unsigned long start,
+                                        unsigned long end);
+extern void initmem_init(unsigned long, unsigned long);
+extern void zone_sizes_init(void);
+extern void setup_bootmem_allocator(void);
+
+
 #ifdef CONFIG_X86_USE_3DNOW
 #include <asm/mmx.h>