| #ifndef __ASM_SH_ATOMIC_GRB_H |
| #define __ASM_SH_ATOMIC_GRB_H |
| |
| static inline void atomic_add(int i, atomic_t *v) |
| { |
| int tmp; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" /* r0 = end point */ |
| " mov r15, r1 \n\t" /* r1 = saved sp */ |
| " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ |
| " mov.l @%1, %0 \n\t" /* load old value */ |
| " add %2, %0 \n\t" /* add */ |
| " mov.l %0, @%1 \n\t" /* store new value */ |
| "1: mov r1, r15 \n\t" /* LOGOUT */ |
| : "=&r" (tmp), |
| "+r" (v) |
| : "r" (i) |
| : "memory" , "r0", "r1"); |
| } |
| |
| static inline void atomic_sub(int i, atomic_t *v) |
| { |
| int tmp; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" /* r0 = end point */ |
| " mov r15, r1 \n\t" /* r1 = saved sp */ |
| " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ |
| " mov.l @%1, %0 \n\t" /* load old value */ |
| " sub %2, %0 \n\t" /* sub */ |
| " mov.l %0, @%1 \n\t" /* store new value */ |
| "1: mov r1, r15 \n\t" /* LOGOUT */ |
| : "=&r" (tmp), |
| "+r" (v) |
| : "r" (i) |
| : "memory" , "r0", "r1"); |
| } |
| |
| static inline int atomic_add_return(int i, atomic_t *v) |
| { |
| int tmp; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" /* r0 = end point */ |
| " mov r15, r1 \n\t" /* r1 = saved sp */ |
| " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ |
| " mov.l @%1, %0 \n\t" /* load old value */ |
| " add %2, %0 \n\t" /* add */ |
| " mov.l %0, @%1 \n\t" /* store new value */ |
| "1: mov r1, r15 \n\t" /* LOGOUT */ |
| : "=&r" (tmp), |
| "+r" (v) |
| : "r" (i) |
| : "memory" , "r0", "r1"); |
| |
| return tmp; |
| } |
| |
| static inline int atomic_sub_return(int i, atomic_t *v) |
| { |
| int tmp; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" /* r0 = end point */ |
| " mov r15, r1 \n\t" /* r1 = saved sp */ |
| " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ |
| " mov.l @%1, %0 \n\t" /* load old value */ |
| " sub %2, %0 \n\t" /* sub */ |
| " mov.l %0, @%1 \n\t" /* store new value */ |
| "1: mov r1, r15 \n\t" /* LOGOUT */ |
| : "=&r" (tmp), |
| "+r" (v) |
| : "r" (i) |
| : "memory", "r0", "r1"); |
| |
| return tmp; |
| } |
| |
| static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) |
| { |
| int tmp; |
| unsigned int _mask = ~mask; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" /* r0 = end point */ |
| " mov r15, r1 \n\t" /* r1 = saved sp */ |
| " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ |
| " mov.l @%1, %0 \n\t" /* load old value */ |
| " and %2, %0 \n\t" /* add */ |
| " mov.l %0, @%1 \n\t" /* store new value */ |
| "1: mov r1, r15 \n\t" /* LOGOUT */ |
| : "=&r" (tmp), |
| "+r" (v) |
| : "r" (_mask) |
| : "memory" , "r0", "r1"); |
| } |
| |
| static inline void atomic_set_mask(unsigned int mask, atomic_t *v) |
| { |
| int tmp; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" /* r0 = end point */ |
| " mov r15, r1 \n\t" /* r1 = saved sp */ |
| " mov #-6, r15 \n\t" /* LOGIN: r15 = size */ |
| " mov.l @%1, %0 \n\t" /* load old value */ |
| " or %2, %0 \n\t" /* or */ |
| " mov.l %0, @%1 \n\t" /* store new value */ |
| "1: mov r1, r15 \n\t" /* LOGOUT */ |
| : "=&r" (tmp), |
| "+r" (v) |
| : "r" (mask) |
| : "memory" , "r0", "r1"); |
| } |
| |
| static inline int atomic_cmpxchg(atomic_t *v, int old, int new) |
| { |
| int ret; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" |
| " nop \n\t" |
| " mov r15, r1 \n\t" |
| " mov #-8, r15 \n\t" |
| " mov.l @%1, %0 \n\t" |
| " cmp/eq %2, %0 \n\t" |
| " bf 1f \n\t" |
| " mov.l %3, @%1 \n\t" |
| "1: mov r1, r15 \n\t" |
| : "=&r" (ret) |
| : "r" (v), "r" (old), "r" (new) |
| : "memory" , "r0", "r1" , "t"); |
| |
| return ret; |
| } |
| |
| static inline int atomic_add_unless(atomic_t *v, int a, int u) |
| { |
| int ret; |
| unsigned long tmp; |
| |
| __asm__ __volatile__ ( |
| " .align 2 \n\t" |
| " mova 1f, r0 \n\t" |
| " nop \n\t" |
| " mov r15, r1 \n\t" |
| " mov #-12, r15 \n\t" |
| " mov.l @%2, %1 \n\t" |
| " mov %1, %0 \n\t" |
| " cmp/eq %4, %0 \n\t" |
| " bt/s 1f \n\t" |
| " add %3, %1 \n\t" |
| " mov.l %1, @%2 \n\t" |
| "1: mov r1, r15 \n\t" |
| : "=&r" (ret), "=&r" (tmp) |
| : "r" (v), "r" (a), "r" (u) |
| : "memory" , "r0", "r1" , "t"); |
| |
| return ret != u; |
| } |
| #endif /* __ASM_SH_ATOMIC_GRB_H */ |