124 lines
3.5 KiB
C
124 lines
3.5 KiB
C
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#ifndef __ASM_SH_ATOMIC_GRB_H
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#define __ASM_SH_ATOMIC_GRB_H
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static inline void atomic_add(int i, atomic_t *v)
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{
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int tmp;
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__asm__ __volatile__ (
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" .align 2 \n\t"
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" mova 1f, r0 \n\t" /* r0 = end point */
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" mov r15, r1 \n\t" /* r1 = saved sp */
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" mov #-6, r15 \n\t" /* LOGIN: r15 = size */
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" mov.l @%1, %0 \n\t" /* load old value */
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" add %2, %0 \n\t" /* add */
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" mov.l %0, @%1 \n\t" /* store new value */
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"1: mov r1, r15 \n\t" /* LOGOUT */
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: "=&r" (tmp),
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"+r" (v)
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: "r" (i)
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: "memory" , "r0", "r1");
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}
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static inline void atomic_sub(int i, atomic_t *v)
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{
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int tmp;
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__asm__ __volatile__ (
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" .align 2 \n\t"
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" mova 1f, r0 \n\t" /* r0 = end point */
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" mov r15, r1 \n\t" /* r1 = saved sp */
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" mov #-6, r15 \n\t" /* LOGIN: r15 = size */
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" mov.l @%1, %0 \n\t" /* load old value */
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" sub %2, %0 \n\t" /* sub */
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" mov.l %0, @%1 \n\t" /* store new value */
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"1: mov r1, r15 \n\t" /* LOGOUT */
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: "=&r" (tmp),
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"+r" (v)
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: "r" (i)
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: "memory" , "r0", "r1");
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}
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static inline int atomic_add_return(int i, atomic_t *v)
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{
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int tmp;
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__asm__ __volatile__ (
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" .align 2 \n\t"
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" mova 1f, r0 \n\t" /* r0 = end point */
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" mov r15, r1 \n\t" /* r1 = saved sp */
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" mov #-6, r15 \n\t" /* LOGIN: r15 = size */
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" mov.l @%1, %0 \n\t" /* load old value */
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" add %2, %0 \n\t" /* add */
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" mov.l %0, @%1 \n\t" /* store new value */
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"1: mov r1, r15 \n\t" /* LOGOUT */
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: "=&r" (tmp),
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"+r" (v)
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: "r" (i)
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: "memory" , "r0", "r1");
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return tmp;
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}
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static inline int atomic_sub_return(int i, atomic_t *v)
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{
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int tmp;
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__asm__ __volatile__ (
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" .align 2 \n\t"
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" mova 1f, r0 \n\t" /* r0 = end point */
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" mov r15, r1 \n\t" /* r1 = saved sp */
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" mov #-6, r15 \n\t" /* LOGIN: r15 = size */
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" mov.l @%1, %0 \n\t" /* load old value */
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" sub %2, %0 \n\t" /* sub */
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" mov.l %0, @%1 \n\t" /* store new value */
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"1: mov r1, r15 \n\t" /* LOGOUT */
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: "=&r" (tmp),
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"+r" (v)
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: "r" (i)
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: "memory", "r0", "r1");
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return tmp;
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}
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static inline void atomic_clear_mask(unsigned int mask, atomic_t *v)
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{
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int tmp;
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unsigned int _mask = ~mask;
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__asm__ __volatile__ (
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" .align 2 \n\t"
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" mova 1f, r0 \n\t" /* r0 = end point */
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" mov r15, r1 \n\t" /* r1 = saved sp */
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" mov #-6, r15 \n\t" /* LOGIN: r15 = size */
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" mov.l @%1, %0 \n\t" /* load old value */
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" and %2, %0 \n\t" /* add */
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" mov.l %0, @%1 \n\t" /* store new value */
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"1: mov r1, r15 \n\t" /* LOGOUT */
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: "=&r" (tmp),
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"+r" (v)
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: "r" (_mask)
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: "memory" , "r0", "r1");
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}
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static inline void atomic_set_mask(unsigned int mask, atomic_t *v)
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{
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int tmp;
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__asm__ __volatile__ (
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" .align 2 \n\t"
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" mova 1f, r0 \n\t" /* r0 = end point */
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" mov r15, r1 \n\t" /* r1 = saved sp */
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" mov #-6, r15 \n\t" /* LOGIN: r15 = size */
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" mov.l @%1, %0 \n\t" /* load old value */
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" or %2, %0 \n\t" /* or */
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" mov.l %0, @%1 \n\t" /* store new value */
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"1: mov r1, r15 \n\t" /* LOGOUT */
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: "=&r" (tmp),
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"+r" (v)
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: "r" (mask)
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: "memory" , "r0", "r1");
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}
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#endif /* __ASM_SH_ATOMIC_GRB_H */
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