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Diffstat (limited to 'include/asm-x86_64/tlbflush.h')
-rw-r--r--include/asm-x86_64/tlbflush.h109
1 files changed, 0 insertions, 109 deletions
diff --git a/include/asm-x86_64/tlbflush.h b/include/asm-x86_64/tlbflush.h
deleted file mode 100644
index 888eb4abdd07..000000000000
--- a/include/asm-x86_64/tlbflush.h
+++ /dev/null
@@ -1,109 +0,0 @@
-#ifndef _X8664_TLBFLUSH_H
-#define _X8664_TLBFLUSH_H
-
-#include <linux/mm.h>
-#include <linux/sched.h>
-#include <asm/processor.h>
-#include <asm/system.h>
-
-static inline void __flush_tlb(void)
-{
- write_cr3(read_cr3());
-}
-
-static inline void __flush_tlb_all(void)
-{
- unsigned long cr4 = read_cr4();
- write_cr4(cr4 & ~X86_CR4_PGE); /* clear PGE */
- write_cr4(cr4); /* write old PGE again and flush TLBs */
-}
-
-#define __flush_tlb_one(addr) \
- __asm__ __volatile__("invlpg (%0)" :: "r" (addr) : "memory")
-
-
-/*
- * 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_pgtables(mm, start, end) flushes a range of page tables
- *
- * 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();
-}
-
-#else
-
-#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);
-}
-
-#define TLBSTATE_OK 1
-#define TLBSTATE_LAZY 2
-
-/* Roughly an IPI every 20MB with 4k pages for freeing page table
- ranges. Cost is about 42k of memory for each CPU. */
-#define ARCH_FREE_PTE_NR 5350
-
-#endif
-
-static inline void flush_tlb_kernel_range(unsigned long start,
- unsigned long end)
-{
- flush_tlb_all();
-}
-
-static inline void flush_tlb_pgtables(struct mm_struct *mm,
- unsigned long start, unsigned long end)
-{
- /* x86_64 does not keep any page table caches in a software TLB.
- The CPUs do in their hardware TLBs, but they are handled
- by the normal TLB flushing algorithms. */
-}
-
-#endif /* _X8664_TLBFLUSH_H */