[SPARC64]: Preload TSB entries from update_mmu_cache().

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 10 insertions, 0 deletions

diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index a8119cb4fa32..1e8a5a33639d 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -277,6 +277,16 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t p
         mm_rss = get_mm_rss(mm);
         if (mm_rss >= mm->context.tsb_rss_limit)
                 tsb_grow(mm, mm_rss, GFP_ATOMIC);
+
+        if ((pte_val(pte) & _PAGE_ALL_SZ_BITS) == _PAGE_SZBITS) {
+                struct tsb *tsb;
+                unsigned long tag;
+
+                tsb = &mm->context.tsb[(address >> PAGE_SHIFT) &
+                                       (mm->context.tsb_nentries - 1UL)];
+                tag = (address >> 22UL) | CTX_HWBITS(mm->context) << 48UL;
+                tsb_insert(tsb, tag, pte_val(pte));
+        }
 }
 
 void flush_dcache_page(struct page *page)