x86: merge tlbflush.h variants

The delta is now minimal. Merge them

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/include/asm-x86/tlbflush.h b/include/asm-x86/tlbflush.h
index 9af4cc83a1afc1be1a3078edbe9eb6231eb47546..3998709ed63795a472d41ce817ef53900a0b1068 100644 (file)
--- a/include/asm-x86/tlbflush.h
+++ b/include/asm-x86/tlbflush.h
@@ -1,5 +1,158 @@
+#ifndef _ASM_X86_TLBFLUSH_H
+#define _ASM_X86_TLBFLUSH_H
+
+#include <linux/mm.h>
+#include <linux/sched.h>
+
+#include <asm/processor.h>
+#include <asm/system.h>
+
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define __flush_tlb() __native_flush_tlb()
+#define __flush_tlb_global() __native_flush_tlb_global()
+#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
+#endif
+
+static inline void __native_flush_tlb(void)
+{
+       write_cr3(read_cr3());
+}
+
+static inline void __native_flush_tlb_global(void)
+{
+       unsigned long cr4 = read_cr4();
+
+       /* clear PGE */
+       write_cr4(cr4 & ~X86_CR4_PGE);
+       /* write old PGE again and flush TLBs */
+       write_cr4(cr4);
+}
+
+static inline void __native_flush_tlb_single(unsigned long addr)
+{
+       __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
+}
+
+static inline void __flush_tlb_all(void)
+{
+       if (cpu_has_pge)
+               __flush_tlb_global();
+       else
+               __flush_tlb();
+}
+
+static inline void __flush_tlb_one(unsigned long addr)
+{
+       if (cpu_has_invlpg)
+               __flush_tlb_single(addr);
+       else
+               __flush_tlb();
+}
+
 #ifdef CONFIG_X86_32
-# include "tlbflush_32.h"
+# define TLB_FLUSH_ALL 0xffffffff
 #else
-# include "tlbflush_64.h"
+# define TLB_FLUSH_ALL -1ULL
+#endif
+
+/*
+ * TLB flushing:
+ *
+ *  - flush_tlb() flushes the current mm struct TLBs
+ *  - flush_tlb_all() flushes all processes TLBs
+ *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
+ *  - flush_tlb_page(vma, vmaddr) flushes one page
+ *  - flush_tlb_range(vma, start, end) flushes a range of pages
+ *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
+ *  - flush_tlb_others(cpumask, mm, va) flushes TLBs on other cpus
+ *
+ * ..but the i386 has somewhat limited tlb flushing capabilities,
+ * and page-granular flushes are available only on i486 and up.
+ *
+ * x86-64 can only flush individual pages or full VMs. For a range flush
+ * we always do the full VM. Might be worth trying if for a small
+ * range a few INVLPGs in a row are a win.
+ */
+
+#ifndef CONFIG_SMP
+
+#define flush_tlb() __flush_tlb()
+#define flush_tlb_all() __flush_tlb_all()
+#define local_flush_tlb() __flush_tlb()
+
+static inline void flush_tlb_mm(struct mm_struct *mm)
+{
+       if (mm == current->active_mm)
+               __flush_tlb();
+}
+
+static inline void flush_tlb_page(struct vm_area_struct *vma,
+                                 unsigned long addr)
+{
+       if (vma->vm_mm == current->active_mm)
+               __flush_tlb_one(addr);
+}
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+                                  unsigned long start, unsigned long end)
+{
+       if (vma->vm_mm == current->active_mm)
+               __flush_tlb();
+}
+
+static inline void native_flush_tlb_others(const cpumask_t *cpumask,
+                                          struct mm_struct *mm,
+                                          unsigned long va)
+{
+}
+
+#else  /* SMP */
+
+#include <asm/smp.h>
+
+#define local_flush_tlb() __flush_tlb()
+
+extern void flush_tlb_all(void);
+extern void flush_tlb_current_task(void);
+extern void flush_tlb_mm(struct mm_struct *);
+extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
+
+#define flush_tlb()    flush_tlb_current_task()
+
+static inline void flush_tlb_range(struct vm_area_struct *vma,
+                                  unsigned long start, unsigned long end)
+{
+       flush_tlb_mm(vma->vm_mm);
+}
+
+void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm,
+                            unsigned long va);
+
+#define TLBSTATE_OK    1
+#define TLBSTATE_LAZY  2
+
+#ifdef CONFIG_X86_32
+struct tlb_state
+{
+       struct mm_struct *active_mm;
+       int state;
+       char __cacheline_padding[L1_CACHE_BYTES-8];
+};
+DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate);
+#endif
+
+#endif /* SMP */
+
+#ifndef CONFIG_PARAVIRT
+#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va)
 #endif
+
+static inline void flush_tlb_kernel_range(unsigned long start,
+                                         unsigned long end)
+{
+       flush_tlb_all();
+}
+
+#endif /* _ASM_X86_TLBFLUSH_H */

diff --git a/include/asm-x86/tlbflush_32.h b/include/asm-x86/tlbflush_32.h
deleted file mode 100644 (file)
index 9e07cc8..0000000
--- a/include/asm-x86/tlbflush_32.h
+++ /dev/null
@@ -1,148 +0,0 @@
-#ifndef _X86_TLBFLUSH_H
-#define _X86_TLBFLUSH_H
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-
-#include <asm/processor.h>
-#include <asm/system.h>
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#define __flush_tlb() __native_flush_tlb()
-#define __flush_tlb_global() __native_flush_tlb_global()
-#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
-#endif
-
-static inline void __native_flush_tlb(void)
-{
-       write_cr3(read_cr3());
-}
-
-static inline void __native_flush_tlb_global(void)
-{
-       unsigned long cr4 = read_cr4();
-
-       /* clear PGE */
-       write_cr4(cr4 & ~X86_CR4_PGE);
-       /* write old PGE again and flush TLBs */
-       write_cr4(cr4);
-}
-
-static inline void __native_flush_tlb_single(unsigned long addr)
-{
-       __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
-}
-
-static inline void __flush_tlb_all(void)
-{
-       if (cpu_has_pge)
-               __flush_tlb_global();
-       else
-               __flush_tlb();
-}
-
-static inline void __flush_tlb_one(unsigned long addr)
-{
-       if (cpu_has_invlpg)
-               __flush_tlb_single(addr);
-       else
-               __flush_tlb();
-}
-
-/*
- * TLB flushing:
- *
- *  - flush_tlb() flushes the current mm struct TLBs
- *  - flush_tlb_all() flushes all processes TLBs
- *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
- *  - flush_tlb_page(vma, vmaddr) flushes one page
- *  - flush_tlb_range(vma, start, end) flushes a range of pages
- *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
- *  - flush_tlb_others(cpumask, mm, va) flushes a TLBs on other cpus
- *
- * ..but the i386 has somewhat limited tlb flushing capabilities,
- * and page-granular flushes are available only on i486 and up.
- */
-
-#define TLB_FLUSH_ALL  0xffffffff
-
-#ifndef CONFIG_SMP
-
-#define flush_tlb() __flush_tlb()
-#define flush_tlb_all() __flush_tlb_all()
-#define local_flush_tlb() __flush_tlb()
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
-       if (mm == current->active_mm)
-               __flush_tlb();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma,
-                                 unsigned long addr)
-{
-       if (vma->vm_mm == current->active_mm)
-               __flush_tlb_one(addr);
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
-                                  unsigned long start, unsigned long end)
-{
-       if (vma->vm_mm == current->active_mm)
-               __flush_tlb();
-}
-
-static inline void native_flush_tlb_others(const cpumask_t *cpumask,
-                                          struct mm_struct *mm,
-                                          unsigned long va)
-{
-}
-
-#else  /* SMP */
-
-#include <asm/smp.h>
-
-#define local_flush_tlb() __flush_tlb()
-
-extern void flush_tlb_all(void);
-extern void flush_tlb_current_task(void);
-extern void flush_tlb_mm(struct mm_struct *);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
-
-#define flush_tlb()    flush_tlb_current_task()
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
-                                  unsigned long start, unsigned long end)
-{
-       flush_tlb_mm(vma->vm_mm);
-}
-
-void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm,
-                            unsigned long va);
-
-#define TLBSTATE_OK    1
-#define TLBSTATE_LAZY  2
-
-struct tlb_state
-{
-       struct mm_struct *active_mm;
-       int state;
-       char __cacheline_padding[L1_CACHE_BYTES-8];
-};
-DECLARE_PER_CPU(struct tlb_state, cpu_tlbstate);
-
-#endif /* SMP */
-
-#ifndef CONFIG_PARAVIRT
-#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va)
-#endif
-
-static inline void flush_tlb_kernel_range(unsigned long start,
-                                         unsigned long end)
-{
-       flush_tlb_all();
-}
-
-#endif /* _X86_TLBFLUSH_H */

diff --git a/include/asm-x86/tlbflush_64.h b/include/asm-x86/tlbflush_64.h
deleted file mode 100644 (file)
index 0bed440..0000000
--- a/include/asm-x86/tlbflush_64.h
+++ /dev/null
@@ -1,140 +0,0 @@
-#ifndef _X86_TLBFLUSH_H
-#define _X86_TLBFLUSH_H
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-
-#include <asm/processor.h>
-#include <asm/system.h>
-
-#ifdef CONFIG_PARAVIRT
-#include <asm/paravirt.h>
-#else
-#define __flush_tlb() __native_flush_tlb()
-#define __flush_tlb_global() __native_flush_tlb_global()
-#define __flush_tlb_single(addr) __native_flush_tlb_single(addr)
-#endif
-
-static inline void __native_flush_tlb(void)
-{
-       write_cr3(read_cr3());
-}
-
-static inline void __native_flush_tlb_global(void)
-{
-       unsigned long cr4 = read_cr4();
-
-       /* clear PGE */
-       write_cr4(cr4 & ~X86_CR4_PGE);
-       /* write old PGE again and flush TLBs */
-       write_cr4(cr4);
-}
-
-static inline void __native_flush_tlb_single(unsigned long addr)
-{
-       __asm__ __volatile__("invlpg (%0)" ::"r" (addr) : "memory");
-}
-
-static inline void __flush_tlb_all(void)
-{
-       if (cpu_has_pge)
-               __flush_tlb_global();
-       else
-               __flush_tlb();
-}
-
-static inline void __flush_tlb_one(unsigned long addr)
-{
-       if (cpu_has_invlpg)
-               __flush_tlb_single(addr);
-       else
-               __flush_tlb();
-}
-
-/*
- * TLB flushing:
- *
- *  - flush_tlb() flushes the current mm struct TLBs
- *  - flush_tlb_all() flushes all processes TLBs
- *  - flush_tlb_mm(mm) flushes the specified mm context TLB's
- *  - flush_tlb_page(vma, vmaddr) flushes one page
- *  - flush_tlb_range(vma, start, end) flushes a range of pages
- *  - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
- *
- * x86-64 can only flush individual pages or full VMs. For a range flush
- * we always do the full VM. Might be worth trying if for a small
- * range a few INVLPGs in a row are a win.
- */
-
-#define TLB_FLUSH_ALL  -1ULL
-
-#ifndef CONFIG_SMP
-
-#define flush_tlb() __flush_tlb()
-#define flush_tlb_all() __flush_tlb_all()
-#define local_flush_tlb() __flush_tlb()
-
-static inline void flush_tlb_mm(struct mm_struct *mm)
-{
-       if (mm == current->active_mm)
-               __flush_tlb();
-}
-
-static inline void flush_tlb_page(struct vm_area_struct *vma,
-                                 unsigned long addr)
-{
-       if (vma->vm_mm == current->active_mm)
-               __flush_tlb_one(addr);
-}
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
-                                  unsigned long start, unsigned long end)
-{
-       if (vma->vm_mm == current->active_mm)
-               __flush_tlb();
-}
-
-static inline void native_flush_tlb_others(const cpumask_t *cpumask,
-                                          struct mm_struct *mm,
-                                          unsigned long va)
-{
-}
-
-#else  /* SMP */
-
-#include <asm/smp.h>
-
-#define local_flush_tlb() __flush_tlb()
-
-extern void flush_tlb_all(void);
-extern void flush_tlb_current_task(void);
-extern void flush_tlb_mm(struct mm_struct *);
-extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
-
-#define flush_tlb()    flush_tlb_current_task()
-
-static inline void flush_tlb_range(struct vm_area_struct *vma,
-                                  unsigned long start, unsigned long end)
-{
-       flush_tlb_mm(vma->vm_mm);
-}
-
-void native_flush_tlb_others(const cpumask_t *cpumask, struct mm_struct *mm,
-                            unsigned long va);
-
-#define TLBSTATE_OK    1
-#define TLBSTATE_LAZY  2
-
-#endif /* SMP */
-
-#ifndef CONFIG_PARAVIRT
-#define flush_tlb_others(mask, mm, va) native_flush_tlb_others(&mask, mm, va)
-#endif
-
-static inline void flush_tlb_kernel_range(unsigned long start,
-                                         unsigned long end)
-{
-       flush_tlb_all();
-}
-
-#endif /* _X86_TLBFLUSH_H */