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ARC: [SMP] TLB flush

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- Add mm_cpumask setting (aggregating only, unlike some other arches)
  used to restrict the TLB flush cross-calling

- cross-calling versions of TLB flush routines (thanks to Noam)

Signed-off-by: Noam Camus <noamc@ezchip.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
This commit is contained in:
Vineet Gupta
2013-10-27 14:49:02 +05:30
parent 63eca94ca2
commit 5ea72a9026
4 changed files with 99 additions and 3 deletions
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11
arch/arc/include/asm/tlbflush.h
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@@ -18,11 +18,18 @@ void local_flush_tlb_kernel_range(unsigned long start, unsigned long end);
void local_flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
/* XXX: Revisit for SMP */
#ifndef CONFIG_SMP
#define flush_tlb_range(vma, s, e) local_flush_tlb_range(vma, s, e)
#define flush_tlb_page(vma, page) local_flush_tlb_page(vma, page)
#define flush_tlb_kernel_range(s, e) local_flush_tlb_kernel_range(s, e)
#define flush_tlb_all() local_flush_tlb_all()
#define flush_tlb_mm(mm) local_flush_tlb_mm(mm)
#else
extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end);
extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long page);
extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
extern void flush_tlb_all(void);
extern void flush_tlb_mm(struct mm_struct *mm);
#endif /* CONFIG_SMP */
#endif