Flush TSB and TLB only at REAL_HPAGE_SIZE boundaries and
not at every 8K stride.
Orabug: 22643230
Signed-off-by: Nitin Gupta <nitin.m.gupta@xxxxxxxxxx>
---
arch/sparc/mm/hugetlbpage.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/arch/sparc/mm/hugetlbpage.c b/arch/sparc/mm/hugetlbpage.c
index d8f625c..0f4f320 100644
--- a/arch/sparc/mm/hugetlbpage.c
+++ b/arch/sparc/mm/hugetlbpage.c
@@ -182,11 +182,17 @@ void set_huge_pte_at(struct mm_struct *mm, unsigned long addr,
addr &= HPAGE_MASK;
for (i = 0; i < (1 << HUGETLB_PAGE_ORDER); i++) {
- set_pte_at(mm, addr, ptep, entry);
+ *ptep = entry;
ptep++;
addr += PAGE_SIZE;
pte_val(entry) += PAGE_SIZE;
}
+
+ /* Issue TSB and TLB flush at REAL_HPAGE_SIZE boundaries */
+ flush_tsb_user_page(mm, addr, true);
+ flush_tsb_user_page(mm, addr + REAL_HPAGE_SIZE, true);
+ global_flush_tlb_page(mm, addr);
+ global_flush_tlb_page(mm, addr + REAL_HPAGE_SIZE);
}
pte_t huge_ptep_get_and_clear(struct mm_struct *mm, unsigned long addr,
--
2.6.4
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