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Diffstat (limited to 'arch/powerpc/mm/pgtable_64.c')
-rw-r--r--arch/powerpc/mm/pgtable_64.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/powerpc/mm/pgtable_64.c b/arch/powerpc/mm/pgtable_64.c
index 65b7b65e8708..62bf5e8e78da 100644
--- a/arch/powerpc/mm/pgtable_64.c
+++ b/arch/powerpc/mm/pgtable_64.c
@@ -510,7 +510,8 @@ int pmdp_set_access_flags(struct vm_area_struct *vma, unsigned long address,
510} 510}
511 511
512unsigned long pmd_hugepage_update(struct mm_struct *mm, unsigned long addr, 512unsigned long pmd_hugepage_update(struct mm_struct *mm, unsigned long addr,
513 pmd_t *pmdp, unsigned long clr) 513 pmd_t *pmdp, unsigned long clr,
514 unsigned long set)
514{ 515{
515 516
516 unsigned long old, tmp; 517 unsigned long old, tmp;
@@ -526,14 +527,15 @@ unsigned long pmd_hugepage_update(struct mm_struct *mm, unsigned long addr,
526 andi. %1,%0,%6\n\ 527 andi. %1,%0,%6\n\
527 bne- 1b \n\ 528 bne- 1b \n\
528 andc %1,%0,%4 \n\ 529 andc %1,%0,%4 \n\
530 or %1,%1,%7\n\
529 stdcx. %1,0,%3 \n\ 531 stdcx. %1,0,%3 \n\
530 bne- 1b" 532 bne- 1b"
531 : "=&r" (old), "=&r" (tmp), "=m" (*pmdp) 533 : "=&r" (old), "=&r" (tmp), "=m" (*pmdp)
532 : "r" (pmdp), "r" (clr), "m" (*pmdp), "i" (_PAGE_BUSY) 534 : "r" (pmdp), "r" (clr), "m" (*pmdp), "i" (_PAGE_BUSY), "r" (set)
533 : "cc" ); 535 : "cc" );
534#else 536#else
535 old = pmd_val(*pmdp); 537 old = pmd_val(*pmdp);
536 *pmdp = __pmd(old & ~clr); 538 *pmdp = __pmd((old & ~clr) | set);
537#endif 539#endif
538 if (old & _PAGE_HASHPTE) 540 if (old & _PAGE_HASHPTE)
539 hpte_do_hugepage_flush(mm, addr, pmdp); 541 hpte_do_hugepage_flush(mm, addr, pmdp);
@@ -708,7 +710,7 @@ void set_pmd_at(struct mm_struct *mm, unsigned long addr,
708void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address, 710void pmdp_invalidate(struct vm_area_struct *vma, unsigned long address,
709 pmd_t *pmdp) 711 pmd_t *pmdp)
710{ 712{
711 pmd_hugepage_update(vma->vm_mm, address, pmdp, _PAGE_PRESENT); 713 pmd_hugepage_update(vma->vm_mm, address, pmdp, _PAGE_PRESENT, 0);
712} 714}
713 715
714/* 716/*
@@ -835,7 +837,7 @@ pmd_t pmdp_get_and_clear(struct mm_struct *mm,
835 unsigned long old; 837 unsigned long old;
836 pgtable_t *pgtable_slot; 838 pgtable_t *pgtable_slot;
837 839
838 old = pmd_hugepage_update(mm, addr, pmdp, ~0UL); 840 old = pmd_hugepage_update(mm, addr, pmdp, ~0UL, 0);
839 old_pmd = __pmd(old); 841 old_pmd = __pmd(old);
840 /* 842 /*
841 * We have pmd == none and we are holding page_table_lock. 843 * We have pmd == none and we are holding page_table_lock.