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: /lib/modules/5.11.0-1022-aws/build/arch/openrisc/include/asm/bitops/ [ drwxr-xr-x ]
name : atomic.h /* * Copyright (C) 2014 Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. */ #ifndef __ASM_OPENRISC_BITOPS_ATOMIC_H #define __ASM_OPENRISC_BITOPS_ATOMIC_H static inline void set_bit(int nr, volatile unsigned long *addr) { unsigned long mask = BIT_MASK(nr); unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); unsigned long tmp; __asm__ __volatile__( "1: l.lwa %0,0(%1) \n" " l.or %0,%0,%2 \n" " l.swa 0(%1),%0 \n" " l.bnf 1b \n" " l.nop \n" : "=&r"(tmp) : "r"(p), "r"(mask) : "cc", "memory"); } static inline void clear_bit(int nr, volatile unsigned long *addr) { unsigned long mask = BIT_MASK(nr); unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); unsigned long tmp; __asm__ __volatile__( "1: l.lwa %0,0(%1) \n" " l.and %0,%0,%2 \n" " l.swa 0(%1),%0 \n" " l.bnf 1b \n" " l.nop \n" : "=&r"(tmp) : "r"(p), "r"(~mask) : "cc", "memory"); } static inline void change_bit(int nr, volatile unsigned long *addr) { unsigned long mask = BIT_MASK(nr); unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); unsigned long tmp; __asm__ __volatile__( "1: l.lwa %0,0(%1) \n" " l.xor %0,%0,%2 \n" " l.swa 0(%1),%0 \n" " l.bnf 1b \n" " l.nop \n" : "=&r"(tmp) : "r"(p), "r"(mask) : "cc", "memory"); } static inline int test_and_set_bit(int nr, volatile unsigned long *addr) { unsigned long mask = BIT_MASK(nr); unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); unsigned long old; unsigned long tmp; __asm__ __volatile__( "1: l.lwa %0,0(%2) \n" " l.or %1,%0,%3 \n" " l.swa 0(%2),%1 \n" " l.bnf 1b \n" " l.nop \n" : "=&r"(old), "=&r"(tmp) : "r"(p), "r"(mask) : "cc", "memory"); return (old & mask) != 0; } static inline int test_and_clear_bit(int nr, volatile unsigned long *addr) { unsigned long mask = BIT_MASK(nr); unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); unsigned long old; unsigned long tmp; __asm__ __volatile__( "1: l.lwa %0,0(%2) \n" " l.and %1,%0,%3 \n" " l.swa 0(%2),%1 \n" " l.bnf 1b \n" " l.nop \n" : "=&r"(old), "=&r"(tmp) : "r"(p), "r"(~mask) : "cc", "memory"); return (old & mask) != 0; } static inline int test_and_change_bit(int nr, volatile unsigned long *addr) { unsigned long mask = BIT_MASK(nr); unsigned long *p = ((unsigned long *)addr) + BIT_WORD(nr); unsigned long old; unsigned long tmp; __asm__ __volatile__( "1: l.lwa %0,0(%2) \n" " l.xor %1,%0,%3 \n" " l.swa 0(%2),%1 \n" " l.bnf 1b \n" " l.nop \n" : "=&r"(old), "=&r"(tmp) : "r"(p), "r"(mask) : "cc", "memory"); return (old & mask) != 0; } #endif /* __ASM_OPENRISC_BITOPS_ATOMIC_H */