nios2: flush_tlb_page use PID based flush

flush_tlb_page is for flushing user pages, so it should not be using
flush_tlb_one (which flushes all pages).

This patch implements it with the flush_tlb_range, which is a user
flush that does the right thing.

flush_tlb_one is made static to mm/tlb.c because it's a bit confusing.
It is used in do_page_fault to flush the kernel non-linear mappings,
so that is replaced with flush_tlb_kernel_page. The end result is that
functionality is identical.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Ley Foon Tan <ley.foon.tan@intel.com>

2 files changed, 10 insertions, 10 deletions

diff --git a/arch/nios2/mm/fault.c b/arch/nios2/mm/fault.c
index 24fd84cf6006..cf76fa3f457b 100644
--- a/arch/nios2/mm/fault.c
+++ b/arch/nios2/mm/fault.c
@@ -271,7 +271,7 @@ vmalloc_fault:
 		if (!pte_present(*pte_k))
 			goto no_context;
 
-		flush_tlb_one(address);
+		flush_tlb_kernel_page(address);
 		return;
 	}
 }
diff --git a/arch/nios2/mm/tlb.c b/arch/nios2/mm/tlb.c
index cf10326aab1c..99e047082993 100644
--- a/arch/nios2/mm/tlb.c
+++ b/arch/nios2/mm/tlb.c
@@ -102,19 +102,11 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
 	}
 }
 
-void flush_tlb_kernel_range(unsigned long start, unsigned long end)
-{
-	while (start < end) {
-		flush_tlb_one(start);
-		start += PAGE_SIZE;
-	}
-}
-
 /*
  * This one is only used for pages with the global bit set so we don't care
  * much about the ASID.
  */
-void flush_tlb_one(unsigned long addr)
+static void flush_tlb_one(unsigned long addr)
 {
 	unsigned int way;
 	unsigned long org_misc, pid_misc;
@@ -154,6 +146,14 @@ void flush_tlb_one(unsigned long addr)
 	WRCTL(CTL_TLBMISC, org_misc);
 }
 
+void flush_tlb_kernel_range(unsigned long start, unsigned long end)
+{
+	while (start < end) {
+		flush_tlb_one(start);
+		start += PAGE_SIZE;
+	}
+}
+
 void dump_tlb_line(unsigned long line)
 {
 	unsigned int way;