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-rw-r--r--arch/mips/lib/csum_partial.S35
1 files changed, 24 insertions, 11 deletions
diff --git a/arch/mips/lib/csum_partial.S b/arch/mips/lib/csum_partial.S
index 84d5e6a1e76..6b876ca299e 100644
--- a/arch/mips/lib/csum_partial.S
+++ b/arch/mips/lib/csum_partial.S
@@ -270,13 +270,20 @@ LEAF(csum_partial)
#endif
/* odd buffer alignment? */
- beqz t7, 1f
- nop
- sll v1, sum, 8
+#ifdef CPU_MIPSR2
+ wsbh v1, sum
+ movn sum, v1, t7
+#else
+ beqz t7, 1f /* odd buffer alignment? */
+ lui v1, 0x00ff
+ addu v1, 0x00ff
+ and t0, sum, v1
+ sll t0, t0, 8
srl sum, sum, 8
- or sum, v1
- andi sum, 0xffff
+ and sum, sum, v1
+ or sum, sum, t0
1:
+#endif
.set reorder
/* Add the passed partial csum. */
ADDC32(sum, a2)
@@ -663,14 +670,20 @@ EXC( sb t0, NBYTES-2(dst), .Ls_exc)
addu sum, v1
#endif
- /* odd buffer alignment? */
- beqz odd, 1f
- nop
- sll v1, sum, 8
+#ifdef CPU_MIPSR2
+ wsbh v1, sum
+ movn sum, v1, odd
+#else
+ beqz odd, 1f /* odd buffer alignment? */
+ lui v1, 0x00ff
+ addu v1, 0x00ff
+ and t0, sum, v1
+ sll t0, t0, 8
srl sum, sum, 8
- or sum, v1
- andi sum, 0xffff
+ and sum, sum, v1
+ or sum, sum, t0
1:
+#endif
.set reorder
ADDC32(sum, psum)
jr ra