x86: 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: NGlauber de Oliveira Costa <gcosta@redhat.com>
Signed-off-by: NIngo Molnar <mingo@elte.hu>
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>

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)
 {

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"

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