X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=arch%2Fxtensa%2Finclude%2Fasm%2Fatomic.h;h=93795d04730387c5207a54807ecb6fe0fc571c50;hb=ca520cab25e0e8da717c596ccaa2c2b3650cfa09;hp=00b7d46b35b848226cacd90034bc241181d3389c;hpb=bb31f607a0900552926ebf9ef3d002d96a43f7cc;p=deliverable%2Flinux.git diff --git a/arch/xtensa/include/asm/atomic.h b/arch/xtensa/include/asm/atomic.h index 00b7d46b35b8..93795d047303 100644 --- a/arch/xtensa/include/asm/atomic.h +++ b/arch/xtensa/include/asm/atomic.h @@ -29,7 +29,7 @@ * * Locking interrupts looks like this: * - * rsil a15, LOCKLEVEL + * rsil a15, TOPLEVEL * * wsr a15, PS * rsync @@ -106,7 +106,7 @@ static inline void atomic_##op(int i, atomic_t * v) \ unsigned int vval; \ \ __asm__ __volatile__( \ - " rsil a15, "__stringify(LOCKLEVEL)"\n"\ + " rsil a15, "__stringify(TOPLEVEL)"\n"\ " l32i %0, %2, 0\n" \ " " #op " %0, %0, %1\n" \ " s32i %0, %2, 0\n" \ @@ -124,7 +124,7 @@ static inline int atomic_##op##_return(int i, atomic_t * v) \ unsigned int vval; \ \ __asm__ __volatile__( \ - " rsil a15,"__stringify(LOCKLEVEL)"\n" \ + " rsil a15,"__stringify(TOPLEVEL)"\n" \ " l32i %0, %2, 0\n" \ " " #op " %0, %0, %1\n" \ " s32i %0, %2, 0\n" \ @@ -145,6 +145,10 @@ static inline int atomic_##op##_return(int i, atomic_t * v) \ 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 @@ -250,75 +254,6 @@ static __inline__ int __atomic_add_unless(atomic_t *v, int a, int u) return c; } - -static inline void atomic_clear_mask(unsigned int mask, atomic_t *v) -{ -#if XCHAL_HAVE_S32C1I - unsigned long tmp; - int result; - - __asm__ __volatile__( - "1: l32i %1, %3, 0\n" - " wsr %1, scompare1\n" - " and %0, %1, %2\n" - " s32c1i %0, %3, 0\n" - " bne %0, %1, 1b\n" - : "=&a" (result), "=&a" (tmp) - : "a" (~mask), "a" (v) - : "memory" - ); -#else - unsigned int all_f = -1; - unsigned int vval; - - __asm__ __volatile__( - " rsil a15,"__stringify(LOCKLEVEL)"\n" - " l32i %0, %2, 0\n" - " xor %1, %4, %3\n" - " and %0, %0, %4\n" - " s32i %0, %2, 0\n" - " wsr a15, ps\n" - " rsync\n" - : "=&a" (vval), "=a" (mask) - : "a" (v), "a" (all_f), "1" (mask) - : "a15", "memory" - ); -#endif -} - -static inline void atomic_set_mask(unsigned int mask, atomic_t *v) -{ -#if XCHAL_HAVE_S32C1I - unsigned long tmp; - int result; - - __asm__ __volatile__( - "1: l32i %1, %3, 0\n" - " wsr %1, scompare1\n" - " or %0, %1, %2\n" - " s32c1i %0, %3, 0\n" - " bne %0, %1, 1b\n" - : "=&a" (result), "=&a" (tmp) - : "a" (mask), "a" (v) - : "memory" - ); -#else - unsigned int vval; - - __asm__ __volatile__( - " rsil a15,"__stringify(LOCKLEVEL)"\n" - " l32i %0, %2, 0\n" - " or %0, %0, %1\n" - " s32i %0, %2, 0\n" - " wsr a15, ps\n" - " rsync\n" - : "=&a" (vval) - : "a" (mask), "a" (v) - : "a15", "memory" - ); -#endif -} - #endif /* __KERNEL__ */ #endif /* _XTENSA_ATOMIC_H */