Release 4.7 arch/sh/include/asm/atomic-grb.h

#ifndef __ASM_SH_ATOMIC_GRB_H

#define __ASM_SH_ATOMIC_GRB_H


#define ATOMIC_OP(op)							\
static inline void atomic_##op(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 */	\
                " " #op "   %2,   %0      \n\t" /* $op */		\
                "   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");                               \
}                                                                       \

#define ATOMIC_OP_RETURN(op)                                            \
static inline int atomic_##op##_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 */	\
                " " #op "   %2,   %0      \n\t" /* $op */		\
                "   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;                                                     \
}


#define ATOMIC_OPS(op) ATOMIC_OP(op) ATOMIC_OP_RETURN(op)

ATOMIC_OPS(add)
ATOMIC_OPS(sub)

ATOMIC_OP(and)
ATOMIC_OP(or)
ATOMIC_OP(xor)


#undef ATOMIC_OPS

#undef ATOMIC_OP_RETURN

#undef ATOMIC_OP

#endif /* __ASM_SH_ATOMIC_GRB_H */
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peter zijlstra
peter zijlstra
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stuart menefy
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Directory: arch/sh/include/asm

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