From 0fb1f35ed9cc2115a88cc73a02e56d288bf2aa8f Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Wed, 11 Feb 2015 18:37:43 +0530
Subject: [PATCH] ARCv2: mm: TLB Miss optim: Use double world load/stores
 LDD/STD

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/mm/tlbex.S | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/arch/arc/mm/tlbex.S b/arch/arc/mm/tlbex.S
index d6fbdeda400a..110c72536e8b 100644
--- a/arch/arc/mm/tlbex.S
+++ b/arch/arc/mm/tlbex.S
@@ -122,17 +122,27 @@ ex_saved_reg1:
 #else	/* ARCv2 */
 
 .macro TLBMISS_FREEUP_REGS
+#ifdef CONFIG_ARC_HAS_LL64
+	std   r0, [sp, -16]
+	std   r2, [sp, -8]
+#else
 	PUSH  r0
 	PUSH  r1
 	PUSH  r2
 	PUSH  r3
+#endif
 .endm
 
 .macro TLBMISS_RESTORE_REGS
+#ifdef CONFIG_ARC_HAS_LL64
+	ldd   r0, [sp, -16]
+	ldd   r2, [sp, -8]
+#else
 	POP   r3
 	POP   r2
 	POP   r1
 	POP   r0
+#endif
 .endm
 
 #endif
-- 
2.30.2