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powerpc/mm/radix: Implement tlb mmu gather flush efficiently

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Now that we track page size in mmu_gather, we can use address based
tlbie format when doing a tlb_flush(). We don't do this if we are
invalidating the full address space.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V
2016-07-13 15:06:35 +05:30
committed by Michael Ellerman
parent e2985fd9b8
commit 8cb8140c4c
2 changed files with 60 additions and 1 deletions
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2
arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
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@@ -10,6 +10,8 @@ static inline int mmu_get_ap(int psize)
return mmu_psize_defs[psize].ap;
}
extern void radix__flush_tlb_range_psize(struct mm_struct *mm, unsigned long start,
unsigned long end, int psize);
extern void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end);
extern void radix__flush_tlb_kernel_range(unsigned long start, unsigned long end);