linux-kernel - [PATCH 4/21] [PATCH] move load

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Date:	Mon, 17 Dec 2007 20:52:27 -0200
From:	Glauber de Oliveira Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, tglx@...utronix.de,
	mingo@...e.hu, ehabkost@...hat.com, jeremy@...p.org,
	avi@...ranet.com, anthony@...emonkey.ws,
	virtualization@...ts.linux-foundation.org, rusty@...tcorp.com.au,
	ak@...e.de, chrisw@...s-sol.org, rostedt@...dmis.org,
	hpa@...or.com, zach@...are.com, roland@...hat.com,
	Glauber de Oliveira Costa <gcosta@...hat.com>
Subject: [PATCH 4/21] [PATCH] move load_cr3 to a common place.

There are currently two definitions of load_cr3, that essentially do the
same thing. This patch moves them all to processor.h.

Signed-off-by: Glauber de Oliveira Costa <gcosta@...hat.com>
---
 include/asm-x86/mmu_context_64.h |    5 -----
 include/asm-x86/processor.h      |    7 +++++++
 include/asm-x86/processor_32.h   |    1 -
 3 files changed, 7 insertions(+), 6 deletions(-)

diff --git a/include/asm-x86/mmu_context_64.h b/include/asm-x86/mmu_context_64.h
index 98bfe43..7e2aa23 100644
--- a/include/asm-x86/mmu_context_64.h
+++ b/include/asm-x86/mmu_context_64.h
@@ -23,11 +23,6 @@ static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
 #endif
 }
 
-static inline void load_cr3(pgd_t *pgd)
-{
-	asm volatile("movq %0,%%cr3" :: "r" (__pa(pgd)) : "memory");
-}
-
 static inline void switch_mm(struct mm_struct *prev, struct mm_struct *next, 
 			     struct task_struct *tsk)
 {
diff --git a/include/asm-x86/processor.h b/include/asm-x86/processor.h
index e8dd394..36ee988 100644
--- a/include/asm-x86/processor.h
+++ b/include/asm-x86/processor.h
@@ -3,6 +3,9 @@
 
 #include <asm/processor-flags.h>
 
+#include <asm/page.h>
+#include <asm/system.h>
+
 static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 					 unsigned int *ecx, unsigned int *edx)
 {
@@ -15,6 +18,10 @@ static inline void native_cpuid(unsigned int *eax, unsigned int *ebx,
 		: "0" (*eax), "2" (*ecx));
 }
 
+static inline void load_cr3(pgd_t *pgdir)
+{
+	write_cr3(__pa(pgdir));
+}
 
 #ifdef CONFIG_X86_32
 # include "processor_32.h"
diff --git a/include/asm-x86/processor_32.h b/include/asm-x86/processor_32.h
index cadeffb..b586902 100644
--- a/include/asm-x86/processor_32.h
+++ b/include/asm-x86/processor_32.h
@@ -120,7 +120,6 @@ extern void detect_ht(struct cpuinfo_x86 *c);
 static inline void detect_ht(struct cpuinfo_x86 *c) {}
 #endif
 
-#define load_cr3(pgdir) write_cr3(__pa(pgdir))
 
 /*
  * Save the cr4 feature set we're using (ie
-- 
1.4.4.2

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