Release 4.14 arch/ia64/include/asm/tlbflush.h
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_IA64_TLBFLUSH_H
#define _ASM_IA64_TLBFLUSH_H
/*
* Copyright (C) 2002 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
*/
#include <linux/mm.h>
#include <asm/intrinsics.h>
#include <asm/mmu_context.h>
#include <asm/page.h>
/*
* Now for some TLB flushing routines. This is the kind of stuff that
* can be very expensive, so try to avoid them whenever possible.
*/
extern void setup_ptcg_sem(int max_purges, int from_palo);
/*
* Flush everything (kernel mapping may also have changed due to
* vmalloc/vfree).
*/
extern void local_flush_tlb_all (void);
#ifdef CONFIG_SMP
extern void smp_flush_tlb_all (void);
extern void smp_flush_tlb_mm (struct mm_struct *mm);
extern void smp_flush_tlb_cpumask (cpumask_t xcpumask);
# define flush_tlb_all() smp_flush_tlb_all()
#else
# define flush_tlb_all() local_flush_tlb_all()
# define smp_flush_tlb_cpumask(m) local_flush_tlb_all()
#endif
static inline void
local_finish_flush_tlb_mm (struct mm_struct *mm)
{
if (mm == current->active_mm)
activate_context(mm);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Mosberger-Tang | 25 | 100.00% | 2 | 100.00% |
| Total | 25 | 100.00% | 2 | 100.00% |
/*
* Flush a specified user mapping. This is called, e.g., as a result of fork() and
* exit(). fork() ends up here because the copy-on-write mechanism needs to write-protect
* the PTEs of the parent task.
*/
static inline void
flush_tlb_mm (struct mm_struct *mm)
{
if (!mm)
return;
set_bit(mm->context, ia64_ctx.flushmap);
mm->context = 0;
if (atomic_read(&mm->mm_users) == 0)
return; /* happens as a result of exit_mmap() */
#ifdef CONFIG_SMP
smp_flush_tlb_mm(mm);
#else
local_finish_flush_tlb_mm(mm);
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Mosberger-Tang | 53 | 80.30% | 3 | 60.00% |
| Peter Keilty | 11 | 16.67% | 1 | 20.00% |
| Ian Wienand | 2 | 3.03% | 1 | 20.00% |
| Total | 66 | 100.00% | 5 | 100.00% |
extern void flush_tlb_range (struct vm_area_struct *vma, unsigned long start, unsigned long end);
/*
* Page-granular tlb flush.
*/
static inline void
flush_tlb_page (struct vm_area_struct *vma, unsigned long addr)
{
#ifdef CONFIG_SMP
flush_tlb_range(vma, (addr & PAGE_MASK), (addr & PAGE_MASK) + PAGE_SIZE);
#else
if (vma->vm_mm == current->active_mm)
ia64_ptcl(addr, (PAGE_SHIFT << 2));
else
vma->vm_mm->context = 0;
#endif
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Mosberger-Tang | 61 | 84.72% | 2 | 66.67% |
| Suresh B. Siddha | 11 | 15.28% | 1 | 33.33% |
| Total | 72 | 100.00% | 3 | 100.00% |
/*
* Flush the local TLB. Invoked from another cpu using an IPI.
*/
#ifdef CONFIG_SMP
void smp_local_flush_tlb(void);
#else
#define smp_local_flush_tlb()
#endif
static inline void flush_tlb_kernel_range(unsigned long start,
unsigned long end)
{
flush_tlb_all(); /* XXX fix me */
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Jan Beulich | 12 | 63.16% | 1 | 50.00% |
| David Mosberger-Tang | 7 | 36.84% | 1 | 50.00% |
| Total | 19 | 100.00% | 2 | 100.00% |
#endif /* _ASM_IA64_TLBFLUSH_H */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| David Mosberger-Tang | 229 | 73.40% | 6 | 46.15% |
| Jack Steiner | 33 | 10.58% | 1 | 7.69% |
| Suresh B. Siddha | 13 | 4.17% | 1 | 7.69% |
| Jan Beulich | 12 | 3.85% | 1 | 7.69% |
| Fenghua Yu | 11 | 3.53% | 1 | 7.69% |
| Peter Keilty | 11 | 3.53% | 1 | 7.69% |
| Ian Wienand | 2 | 0.64% | 1 | 7.69% |
| Greg Kroah-Hartman | 1 | 0.32% | 1 | 7.69% |
| Total | 312 | 100.00% | 13 | 100.00% |
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