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powerpc/mm/radix: Add tlb flush of THP ptes

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Instead of flushing the entire mm, implement a flush_pmd_tlb_range

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 15:06:40 +05:30
committed by Michael Ellerman
parent 9d4dab1158
commit d8e91e93e9
4 changed files with 20 additions and 2 deletions
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2
arch/powerpc/include/asm/book3s/64/tlbflush-radix.h
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@@ -12,6 +12,8 @@ static inline int mmu_get_ap(int psize)
extern void radix__flush_tlb_range_psize(struct mm_struct *mm, unsigned long start,
unsigned long end, int psize);
extern void radix__flush_pmd_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
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);

9
arch/powerpc/include/asm/book3s/64/tlbflush.h
View File

@@ -7,6 +7,15 @@
#include <asm/book3s/64/tlbflush-hash.h>
#include <asm/book3s/64/tlbflush-radix.h>
#define __HAVE_ARCH_FLUSH_PMD_TLB_RANGE
static inline void flush_pmd_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
if (radix_enabled())
return radix__flush_pmd_tlb_range(vma, start, end);
return hash__flush_tlb_range(vma, start, end);
}
static inline void flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{