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Diffstat (limited to 'arch/sparc/lib/atomic_64.S')
-rw-r--r--arch/sparc/lib/atomic_64.S20
1 files changed, 8 insertions, 12 deletions
diff --git a/arch/sparc/lib/atomic_64.S b/arch/sparc/lib/atomic_64.S
index 0268210ca168..703c9c3935b7 100644
--- a/arch/sparc/lib/atomic_64.S
+++ b/arch/sparc/lib/atomic_64.S
@@ -52,10 +52,9 @@ atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */
52 cas [%o1], %g1, %g7 52 cas [%o1], %g1, %g7
53 cmp %g1, %g7 53 cmp %g1, %g7
54 bne,pn %icc, 2f 54 bne,pn %icc, 2f
55 add %g7, %o0, %g7 55 add %g1, %o0, %g1
56 sra %g7, 0, %o0
57 retl 56 retl
58 nop 57 sra %g1, 0, %o0
592: BACKOFF_SPIN(%o2, %o3, 1b) 582: BACKOFF_SPIN(%o2, %o3, 1b)
60 .size atomic_add_ret, .-atomic_add_ret 59 .size atomic_add_ret, .-atomic_add_ret
61 60
@@ -68,10 +67,9 @@ atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */
68 cas [%o1], %g1, %g7 67 cas [%o1], %g1, %g7
69 cmp %g1, %g7 68 cmp %g1, %g7
70 bne,pn %icc, 2f 69 bne,pn %icc, 2f
71 sub %g7, %o0, %g7 70 sub %g1, %o0, %g1
72 sra %g7, 0, %o0
73 retl 71 retl
74 nop 72 sra %g1, 0, %o0
752: BACKOFF_SPIN(%o2, %o3, 1b) 732: BACKOFF_SPIN(%o2, %o3, 1b)
76 .size atomic_sub_ret, .-atomic_sub_ret 74 .size atomic_sub_ret, .-atomic_sub_ret
77 75
@@ -114,10 +112,9 @@ atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */
114 casx [%o1], %g1, %g7 112 casx [%o1], %g1, %g7
115 cmp %g1, %g7 113 cmp %g1, %g7
116 bne,pn %xcc, 2f 114 bne,pn %xcc, 2f
117 add %g7, %o0, %g7
118 mov %g7, %o0
119 retl
120 nop 115 nop
116 retl
117 add %g1, %o0, %o0
1212: BACKOFF_SPIN(%o2, %o3, 1b) 1182: BACKOFF_SPIN(%o2, %o3, 1b)
122 .size atomic64_add_ret, .-atomic64_add_ret 119 .size atomic64_add_ret, .-atomic64_add_ret
123 120
@@ -130,9 +127,8 @@ atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */
130 casx [%o1], %g1, %g7 127 casx [%o1], %g1, %g7
131 cmp %g1, %g7 128 cmp %g1, %g7
132 bne,pn %xcc, 2f 129 bne,pn %xcc, 2f
133 sub %g7, %o0, %g7
134 mov %g7, %o0
135 retl
136 nop 130 nop
131 retl
132 sub %g1, %o0, %o0
1372: BACKOFF_SPIN(%o2, %o3, 1b) 1332: BACKOFF_SPIN(%o2, %o3, 1b)
138 .size atomic64_sub_ret, .-atomic64_sub_ret 134 .size atomic64_sub_ret, .-atomic64_sub_ret