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.text
.align 2
.globl _opal_atomic_mb
_opal_atomic_mb:
sync
blr
.globl _opal_atomic_rmb
_opal_atomic_rmb:
lwsync
blr
.globl _opal_atomic_wmb
_opal_atomic_wmb:
eieio
blr
.globl _opal_atomic_cmpset_32
_opal_atomic_cmpset_32:
L1: lwarx r0, 0, r3
cmpw 0, r0, r4
bne- L2
stwcx. r5, 0, r3
bne- L1
L2:
xor r3,r0,r4
subfic r5,r3,0
adde r3,r5,r3
blr
.globl _opal_atomic_cmpset_acq_32
_opal_atomic_cmpset_acq_32:
L3: lwarx r0, 0, r3
cmpw 0, r0, r4
bne- L4
stwcx. r5, 0, r3
bne- L3
sync
L4:
xor r3,r0,r4
subfic r5,r3,0
adde r3,r5,r3
lwsync
blr
.globl _opal_atomic_cmpset_rel_32
_opal_atomic_cmpset_rel_32:
eieio
L5: lwarx r0, 0, r3
cmpw 0, r0, r4
bne- L6
stwcx. r5, 0, r3
bne- L5
sync
L6:
xor r3,r0,r4
subfic r5,r3,0
adde r3,r5,r3
blr
.globl _opal_atomic_cmpset_64
_opal_atomic_cmpset_64:
stw r4,-32(r1)
stw r5,-28(r1)
stw r6,-24(r1)
stw r7,-20(r1)
ld r5,-32(r1)
ld r7,-24(r1)
L7: ldarx r9, 0, r3
cmpd 0, r9, r5
bne- L8
stdcx. r7, 0, r3
bne- L7
L8:
xor r3,r5,r9
subfic r5,r3,0
adde r3,r5,r3
blr
.globl _opal_atomic_cmpset_acq_64
_opal_atomic_cmpset_acq_64:
stw r4,-32(r1)
stw r5,-28(r1)
stw r6,-24(r1)
stw r7,-20(r1)
ld r5,-32(r1)
ld r7,-24(r1)
L9: ldarx r9, 0, r3
cmpd 0, r9, r5
bne- L10
stdcx. r7, 0, r3
bne- L9
L10:
xor r3,r5,r9
subfic r5,r3,0
adde r3,r5,r3
blr
lwsync
blr
.globl _opal_atomic_cmpset_rel_64
_opal_atomic_cmpset_rel_64:
stw r4,-32(r1)
stw r5,-28(r1)
stw r6,-24(r1)
stw r7,-20(r1)
ld r5,-32(r1)
ld r7,-24(r1)
eieio
L11: ldarx r9, 0, r3
cmpd 0, r9, r5
bne- L12
stdcx. r7, 0, r3
bne- L11
L12:
xor r3,r5,r9
subfic r5,r3,0
adde r3,r5,r3
blr
lwsync
blr
.globl _opal_atomic_add_32
_opal_atomic_add_32:
L13: lwarx r0, 0, r3
add r0, r4, r0
stwcx. r0, 0, r3
bne- L13
mr r3,r0
blr
.globl _opal_atomic_sub_32
_opal_atomic_sub_32:
L14: lwarx r0,0,r3
subf r0,r4,r0
stwcx. r0,0,r3
bne- L14
mr r3,r0
blr
.globl _opal_sys_timer_get_cycles
_opal_sys_timer_get_cycles:
L15:
mftbu r0
mftb r11
mftbu r2
cmpw cr7,r2,r0
bne+ cr7,L15
li r4,0
li r9,0
or r3,r2,r9
or r4,r4,r11
blr
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