From: Andi Kleen <ak@suse.de>
Date: Mon, 4 Feb 2008 15:48:09 +0000 (+0100)
Subject: x86: add PUD_PAGE_SIZE
X-Git-Tag: firefly_0821_release~23550^2~9
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=fbff3c21aff29ffdfa46b50946696689d3e70a48;p=firefly-linux-kernel-4.4.55.git

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>
---

diff --git a/include/asm-x86/page_64.h b/include/asm-x86/page_64.h
index c1ac42d8707f..dcf0c0746075 100644
--- 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