[PATCH 4/21] [PATCH] move load_cr3 to a common place.

Glauber de Oliveira Costa
2007-12-18T01:38:17Z

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@redhat.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