2011-01-26 20:22:44 +03:00
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START_FILE
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TEXT
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ALIGN(4)
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START_FUNC(opal_atomic_mb)
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dmb
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bx lr
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END_FUNC(opal_atomic_mb)
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START_FUNC(opal_atomic_rmb)
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dmb
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bx lr
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END_FUNC(opal_atomic_rmb)
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START_FUNC(opal_atomic_wmb)
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dmb
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bx lr
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END_FUNC(opal_atomic_wmb)
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START_FUNC(opal_atomic_cmpset_32)
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LSYM(1)
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ldrex r3, [r0]
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cmp r1, r3
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bne REFLSYM(2)
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strex r12, r2, [r0]
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cmp r12, #0
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bne REFLSYM(1)
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mov r0, #1
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LSYM(2)
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movne r0, #0
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bx lr
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END_FUNC(opal_atomic_cmpset_32)
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START_FUNC(opal_atomic_cmpset_acq_32)
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LSYM(3)
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ldrex r3, [r0]
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cmp r1, r3
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bne REFLSYM(4)
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strex r12, r2, [r0]
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cmp r12, #0
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bne REFLSYM(3)
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dmb
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mov r0, #1
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LSYM(4)
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movne r0, #0
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bx lr
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END_FUNC(opal_atomic_cmpset_acq_32)
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START_FUNC(opal_atomic_cmpset_rel_32)
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LSYM(5)
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ldrex r3, [r0]
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cmp r1, r3
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bne REFLSYM(6)
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dmb
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strex r12, r2, [r0]
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cmp r12, #0
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bne REFLSYM(4)
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mov r0, #1
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LSYM(6)
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movne r0, #0
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bx lr
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END_FUNC(opal_atomic_cmpset_rel_32)
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#START_64BIT
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START_FUNC(opal_atomic_cmpset_64)
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push {r4-r7}
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ldrd r6, r7, [sp, #16]
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LSYM(7)
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ldrexd r4, r5, [r0]
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cmp r4, r2
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2011-08-02 23:15:24 +04:00
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it eq
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2011-01-26 20:22:44 +03:00
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cmpeq r5, r3
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bne REFLSYM(8)
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strexd r1, r6, r7, [r0]
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cmp r1, #0
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bne REFLSYM(7)
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mov r0, #1
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LSYM(8)
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movne r0, #0
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pop {r4-r7}
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bx lr
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END_FUNC(opal_atomic_cmpset_64)
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START_FUNC(opal_atomic_cmpset_acq_64)
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push {r4-r7}
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ldrd r6, r7, [sp, #16]
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LSYM(9)
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ldrexd r4, r5, [r0]
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cmp r4, r2
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2011-08-02 23:15:24 +04:00
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it eq
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2011-01-26 20:22:44 +03:00
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cmpeq r5, r3
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bne REFLSYM(10)
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strexd r1, r6, r7, [r0]
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cmp r1, #0
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bne REFLSYM(9)
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dmb
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mov r0, #1
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LSYM(10)
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movne r0, #0
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pop {r4-r7}
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bx lr
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END_FUNC(opal_atomic_cmpset_acq_64)
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START_FUNC(opal_atomic_cmpset_rel_64)
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push {r4-r7}
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ldrd r6, r7, [sp, #16]
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LSYM(11)
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ldrexd r4, r5, [r0]
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cmp r4, r2
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2011-08-02 23:15:24 +04:00
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it eq
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2011-01-26 20:22:44 +03:00
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cmpeq r5, r3
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bne REFLSYM(12)
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dmb
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strexd r1, r6, r7, [r0]
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cmp r1, #0
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bne REFLSYM(11)
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mov r0, #1
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LSYM(12)
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movne r0, #0
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pop {r4-r7}
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bx lr
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END_FUNC(opal_atomic_cmpset_rel_64)
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#END_64BIT
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START_FUNC(opal_atomic_add_32)
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LSYM(13)
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ldrex r2, [r0]
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add r2, r2, r1
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strex r3, r2, [r0]
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cmp r3, #0
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bne REFLSYM(13)
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mov r0, r2
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bx lr
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END_FUNC(opal_atomic_add_32)
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START_FUNC(opal_atomic_sub_32)
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LSYM(14)
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ldrex r2, [r0]
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sub r2, r2, r1
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strex r3, r2, [r0]
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cmp r3, #0
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bne REFLSYM(14)
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mov r0, r2
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bx lr
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END_FUNC(opal_atomic_sub_32)
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