Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

[mirror_ubuntu-zesty-kernel.git] / arch / powerpc / mm / tlb-radix.c

diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
index 3493cf4e045258df20f5cf47990e991b6af265b7..61b79119065ff3030162df12446a67c712cd6649 100644 (file)
--- a/arch/powerpc/mm/tlb-radix.c
+++ b/arch/powerpc/mm/tlb-radix.c
@@ -428,3 +428,21 @@ void radix__flush_tlb_all(void)
                     : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(0) : "memory");
        asm volatile("eieio; tlbsync; ptesync": : :"memory");
 }
+
+void radix__flush_tlb_pte_p9_dd1(unsigned long old_pte, struct mm_struct *mm,
+                                unsigned long address)
+{
+       /*
+        * We track page size in pte only for DD1, So we can
+        * call this only on DD1.
+        */
+       if (!cpu_has_feature(CPU_FTR_POWER9_DD1)) {
+               VM_WARN_ON(1);
+               return;
+       }
+
+       if (old_pte & _PAGE_LARGE)
+               radix__flush_tlb_page_psize(mm, address, MMU_PAGE_2M);
+       else
+               radix__flush_tlb_page_psize(mm, address, mmu_virtual_psize);
+}