x86: add PUD_PAGE_SIZE

a PUD entry covers 1GB of virtual memory. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
git-mirror · Feb 4, 2008 · fbff3c2 · fbff3c2
1 parent 019c3e7
commit fbff3c2
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
@@ -23,6 +23,9 @@
 #define MCE_STACK 5
 #define N_EXCEPTION_STACKS 5  /* hw limit: 7 */
 
+#define PUD_PAGE_SIZE		(_AC(1, UL) << PUD_SHIFT)
+#define PUD_PAGE_MASK		(~(PUD_PAGE_SIZE-1))
+
 #define __PAGE_OFFSET           _AC(0xffff810000000000, UL)
 
 #define __PHYSICAL_START	CONFIG_PHYSICAL_START