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MIPS: fix local_{add,sub}_return on MIPS64

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Use "daddu/dsubu" for long int on MIPS64 instead of "addu/subu"

Fixes: 7232311ef1 ("local_t: mips extension")
Signed-off-by: Huang Pei <huangpei@loongson.cn>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Huang Pei 2021-12-15 16:44:57 +08:00 committed by Thomas Bogendoerfer
parent 6bcfdc49f3
commit 277c8cb3e8
1 changed files with 5 additions and 4 deletions
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9
arch/mips/include/asm/local.h
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@ -5,6 +5,7 @@
#include <linux/percpu.h>
#include <linux/bitops.h>
#include <linux/atomic.h>
#include <asm/asm.h>
#include <asm/cmpxchg.h>
#include <asm/compiler.h>
#include <asm/war.h>
@ -39,7 +40,7 @@ static __inline__ long local_add_return(long i, local_t * l)
" .set arch=r4000 \n"
__SYNC(full, loongson3_war) " \n"
"1:" __LL "%1, %2 # local_add_return \n"
" addu %0, %1, %3 \n"
__stringify(LONG_ADDU) " %0, %1, %3 \n"
__SC "%0, %2 \n"
" beqzl %0, 1b \n"
" addu %0, %1, %3 \n"
@ -55,7 +56,7 @@ static __inline__ long local_add_return(long i, local_t * l)
" .set "MIPS_ISA_ARCH_LEVEL" \n"
__SYNC(full, loongson3_war) " \n"
"1:" __LL "%1, %2 # local_add_return \n"
" addu %0, %1, %3 \n"
__stringify(LONG_ADDU) " %0, %1, %3 \n"
__SC "%0, %2 \n"
" beqz %0, 1b \n"
" addu %0, %1, %3 \n"
@ -88,7 +89,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
" .set arch=r4000 \n"
__SYNC(full, loongson3_war) " \n"
"1:" __LL "%1, %2 # local_sub_return \n"
" subu %0, %1, %3 \n"
__stringify(LONG_SUBU) " %0, %1, %3 \n"
__SC "%0, %2 \n"
" beqzl %0, 1b \n"
" subu %0, %1, %3 \n"
@ -104,7 +105,7 @@ static __inline__ long local_sub_return(long i, local_t * l)
" .set "MIPS_ISA_ARCH_LEVEL" \n"
__SYNC(full, loongson3_war) " \n"
"1:" __LL "%1, %2 # local_sub_return \n"
" subu %0, %1, %3 \n"
__stringify(LONG_SUBU) " %0, %1, %3 \n"
__SC "%0, %2 \n"
" beqz %0, 1b \n"
" subu %0, %1, %3 \n"