summaryrefslogtreecommitdiffstats
path: root/include/asm-x86/tlbflush_64.h
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2008-01-30 13:30:35 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-30 13:30:35 +0100
commitd291cf83639a0e0b67ff783b6ed29c0a747d4901 (patch)
tree89c3709d1d773c8f3bd9a47cf4716e7c9d54df89 /include/asm-x86/tlbflush_64.h
parent0b9c99b6f21c2e9e00938e9c57942ed71bfe4d21 (diff)
downloadop-kernel-dev-d291cf83639a0e0b67ff783b6ed29c0a747d4901.zip
op-kernel-dev-d291cf83639a0e0b67ff783b6ed29c0a747d4901.tar.gz
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>
Diffstat (limited to 'include/asm-x86/tlbflush_64.h')
-rw-r--r--include/asm-x86/tlbflush_64.h140
1 files changed, 0 insertions, 140 deletions
diff --git a/include/asm-x86/tlbflush_64.h b/include/asm-x86/tlbflush_64.h
deleted file mode 100644
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 */
OpenPOWER on IntegriCloud