diff options
| author | Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> | 2016-07-13 15:06:40 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2016-08-01 11:15:10 +1000 |
| commit | d8e91e93e97817e8ba069c9c44fb712619cf0a43 (patch) | |
| tree | c216b85ba9187bcac0ba250562585be7753b38bc /arch/powerpc/mm | |
| parent | 9d4dab11585ab2ef25d5d2a00a23b25b552c4080 (diff) | |
powerpc/mm/radix: Add tlb flush of THP ptes
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>
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/pgtable-book3s64.c | 4 | ||||
| -rw-r--r-- | arch/powerpc/mm/tlb-radix.c | 7 |
2 files changed, 9 insertions, 2 deletions
diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c index 670318766545..7bb8acffe876 100644 --- a/arch/powerpc/mm/pgtable-book3s64.c +++ b/arch/powerpc/mm/pgtable-book3s64.c @@ -33,7 +33,7 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, unsigned long address, changed = !pmd_same(*(pmdp), entry); if (changed) { __ptep_set_access_flags(pmdp_ptep(pmdp), pmd_pte(entry)); - flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); + flush_pmd_tlb_range(vma, address, address + HPAGE_PMD_SIZE); } return changed; } @@ -66,7 +66,7 @@ void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, pmd_t *pmdp) { pmd_hugepage_update(vma->vm_mm, address, pmdp, _PAGE_PRESENT, 0); - flush_tlb_range(vma, address, address + HPAGE_PMD_SIZE); + flush_pmd_tlb_range(vma, address, address + HPAGE_PMD_SIZE); /* * This ensures that generic code that rely on IRQ disabling * to prevent a parallel THP split work as expected. diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index 4d0f03ad0996..456c155fe76c 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -391,3 +391,10 @@ void radix__flush_tlb_lpid(unsigned long lpid) asm volatile("eieio; tlbsync; ptesync": : :"memory"); } EXPORT_SYMBOL(radix__flush_tlb_lpid); + +void radix__flush_pmd_tlb_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end) +{ + radix__flush_tlb_range_psize(vma->vm_mm, start, end, MMU_PAGE_2M); +} +EXPORT_SYMBOL(radix__flush_pmd_tlb_range); |