linux-kernel - [PATCH] [9/36] Add pte accessors for the global bit

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Message-Id: <20080116221507.EA97E150C8@wotan.suse.de>
Date:	Wed, 16 Jan 2008 23:15:07 +0100 (CET)
From:	Andi Kleen <ak@...e.de>
To:	linux-kernel@...r.kernel.org, mingo@...e.hu, tglx@...utronix.de,
	jbeulich@...ell.com, venkatesh.pallipadi@...el.com
Subject: [PATCH] [9/36] Add pte accessors for the global bit


Needed for some test code.

Signed-off-by: Andi Kleen <ak@...e.de>
Acked-by: Jan Beulich <jbeulich@...ell.com>

---
 include/asm-x86/pgtable.h |    3 +++
 1 file changed, 3 insertions(+)

Index: linux/include/asm-x86/pgtable.h
===================================================================
--- linux.orig/include/asm-x86/pgtable.h
+++ linux/include/asm-x86/pgtable.h
@@ -144,6 +144,7 @@ static inline int pte_young(pte_t pte)		
 static inline int pte_write(pte_t pte)		{ return pte_val(pte) & _PAGE_RW; }
 static inline int pte_file(pte_t pte)		{ return pte_val(pte) & _PAGE_FILE; }
 static inline int pte_huge(pte_t pte)		{ return pte_val(pte) & _PAGE_PSE; }
+static inline int pte_global(pte_t pte) 	{ return pte_val(pte) & _PAGE_GLOBAL; }
 
 static inline int pmd_large(pmd_t pte) {
 	return (pmd_val(pte) & (_PAGE_PSE|_PAGE_PRESENT)) ==
@@ -159,6 +160,8 @@ static inline pte_t pte_mkyoung(pte_t pt
 static inline pte_t pte_mkwrite(pte_t pte)	{ return __pte(pte_val(pte) | _PAGE_RW); }
 static inline pte_t pte_mkhuge(pte_t pte)	{ return __pte(pte_val(pte) | _PAGE_PSE); }
 static inline pte_t pte_clrhuge(pte_t pte)	{ return __pte(pte_val(pte) & ~_PAGE_PSE); }
+static inline pte_t pte_mkglobal(pte_t pte)	{ return __pte(pte_val(pte) | _PAGE_GLOBAL); }
+static inline pte_t pte_clrglobal(pte_t pte)	{ return __pte(pte_val(pte) & ~_PAGE_GLOBAL); }
 
 extern pteval_t __supported_pte_mask;
 
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