7f30491ccd
After moving the the include files there were a few clean-ups: 1) Some files used #include <asm-ia64/xyz.h>, changed to <asm/xyz.h> 2) Some comments alerted maintainers to look at various header files to make matching updates if certain code were to be changed. Updated these comments to use the new include paths. 3) Some header files mentioned their own names in initial comments. Just deleted these self references. Signed-off-by: Tony Luck <tony.luck@intel.com>
102 lines
2.3 KiB
C
102 lines
2.3 KiB
C
#ifndef _ASM_IA64_TLBFLUSH_H
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#define _ASM_IA64_TLBFLUSH_H
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/*
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* Copyright (C) 2002 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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*/
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#include <linux/mm.h>
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#include <asm/intrinsics.h>
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#include <asm/mmu_context.h>
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#include <asm/page.h>
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/*
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* Now for some TLB flushing routines. This is the kind of stuff that
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* can be very expensive, so try to avoid them whenever possible.
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*/
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extern void setup_ptcg_sem(int max_purges, int from_palo);
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/*
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* Flush everything (kernel mapping may also have changed due to
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* vmalloc/vfree).
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*/
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extern void local_flush_tlb_all (void);
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#ifdef CONFIG_SMP
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extern void smp_flush_tlb_all (void);
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extern void smp_flush_tlb_mm (struct mm_struct *mm);
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extern void smp_flush_tlb_cpumask (cpumask_t xcpumask);
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# define flush_tlb_all() smp_flush_tlb_all()
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#else
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# define flush_tlb_all() local_flush_tlb_all()
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# define smp_flush_tlb_cpumask(m) local_flush_tlb_all()
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#endif
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static inline void
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local_finish_flush_tlb_mm (struct mm_struct *mm)
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{
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if (mm == current->active_mm)
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activate_context(mm);
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}
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/*
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* Flush a specified user mapping. This is called, e.g., as a result of fork() and
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* exit(). fork() ends up here because the copy-on-write mechanism needs to write-protect
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* the PTEs of the parent task.
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*/
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static inline void
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flush_tlb_mm (struct mm_struct *mm)
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{
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if (!mm)
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return;
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set_bit(mm->context, ia64_ctx.flushmap);
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mm->context = 0;
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if (atomic_read(&mm->mm_users) == 0)
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return; /* happens as a result of exit_mmap() */
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#ifdef CONFIG_SMP
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smp_flush_tlb_mm(mm);
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#else
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local_finish_flush_tlb_mm(mm);
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#endif
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}
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extern void flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long end);
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/*
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* Page-granular tlb flush.
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*/
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static inline void
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flush_tlb_page (struct vm_area_struct *vma, unsigned long addr)
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{
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#ifdef CONFIG_SMP
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flush_tlb_range(vma, (addr & PAGE_MASK), (addr & PAGE_MASK) + PAGE_SIZE);
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#else
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if (vma->vm_mm == current->active_mm)
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ia64_ptcl(addr, (PAGE_SHIFT << 2));
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else
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vma->vm_mm->context = 0;
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#endif
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}
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/*
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* Flush the local TLB. Invoked from another cpu using an IPI.
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*/
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#ifdef CONFIG_SMP
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void smp_local_flush_tlb(void);
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#else
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#define smp_local_flush_tlb()
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#endif
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static inline void flush_tlb_kernel_range(unsigned long start,
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unsigned long end)
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{
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flush_tlb_all(); /* XXX fix me */
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}
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#endif /* _ASM_IA64_TLBFLUSH_H */
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