diff options
Diffstat (limited to 'arch/blackfin/include/asm/bitops.h')
| -rw-r--r-- | arch/blackfin/include/asm/bitops.h | 198 |
1 files changed, 9 insertions, 189 deletions
diff --git a/arch/blackfin/include/asm/bitops.h b/arch/blackfin/include/asm/bitops.h index 75fee2f7d9f2..daffa71576d4 100644 --- a/arch/blackfin/include/asm/bitops.h +++ b/arch/blackfin/include/asm/bitops.h @@ -1,26 +1,22 @@ #ifndef _BLACKFIN_BITOPS_H #define _BLACKFIN_BITOPS_H -/* - * Copyright 1992, Linus Torvalds. - */ - -#include <linux/compiler.h> -#include <asm/byteorder.h> /* swab32 */ - -#ifdef __KERNEL__ +#ifndef CONFIG_SMP +# include <asm-generic/bitops.h> +#else #ifndef _LINUX_BITOPS_H #error only <linux/bitops.h> can be included directly #endif +#include <linux/compiler.h> +#include <asm/byteorder.h> /* swab32 */ + #include <asm-generic/bitops/ffs.h> #include <asm-generic/bitops/__ffs.h> #include <asm-generic/bitops/sched.h> #include <asm-generic/bitops/ffz.h> -#ifdef CONFIG_SMP - #include <linux/linkage.h> asmlinkage int __raw_bit_set_asm(volatile unsigned long *addr, int nr); @@ -79,189 +75,13 @@ static inline int test_and_change_bit(int nr, volatile unsigned long *addr) return __raw_bit_test_toggle_asm(a, nr & 0x1f); } -#else /* !CONFIG_SMP */ - -#include <asm/system.h> /* save_flags */ - -static inline void set_bit(int nr, volatile unsigned long *addr) -{ - int *a = (int *)addr; - int mask; - unsigned long flags; - a += nr >> 5; - mask = 1 << (nr & 0x1f); - local_irq_save_hw(flags); - *a |= mask; - local_irq_restore_hw(flags); -} - -static inline void clear_bit(int nr, volatile unsigned long *addr) -{ - int *a = (int *)addr; - int mask; - unsigned long flags; - a += nr >> 5; - mask = 1 << (nr & 0x1f); - local_irq_save_hw(flags); - *a &= ~mask; - local_irq_restore_hw(flags); -} - -static inline void change_bit(int nr, volatile unsigned long *addr) -{ - int mask; - unsigned long flags; - unsigned long *ADDR = (unsigned long *)addr; - - ADDR += nr >> 5; - mask = 1 << (nr & 31); - local_irq_save_hw(flags); - *ADDR ^= mask; - local_irq_restore_hw(flags); -} - -static inline int test_and_set_bit(int nr, volatile unsigned long *addr) -{ - int mask, retval; - volatile unsigned int *a = (volatile unsigned int *)addr; - unsigned long flags; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - local_irq_save_hw(flags); - retval = (mask & *a) != 0; - *a |= mask; - local_irq_restore_hw(flags); - - return retval; -} - -static inline int test_and_clear_bit(int nr, volatile unsigned long *addr) -{ - int mask, retval; - volatile unsigned int *a = (volatile unsigned int *)addr; - unsigned long flags; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - local_irq_save_hw(flags); - retval = (mask & *a) != 0; - *a &= ~mask; - local_irq_restore_hw(flags); - - return retval; -} - -static inline int test_and_change_bit(int nr, volatile unsigned long *addr) -{ - int mask, retval; - volatile unsigned int *a = (volatile unsigned int *)addr; - unsigned long flags; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - local_irq_save_hw(flags); - retval = (mask & *a) != 0; - *a ^= mask; - local_irq_restore_hw(flags); - return retval; -} - -#endif /* CONFIG_SMP */ - /* * clear_bit() doesn't provide any barrier for the compiler. */ #define smp_mb__before_clear_bit() barrier() #define smp_mb__after_clear_bit() barrier() -static inline void __set_bit(int nr, volatile unsigned long *addr) -{ - int *a = (int *)addr; - int mask; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - *a |= mask; -} - -static inline void __clear_bit(int nr, volatile unsigned long *addr) -{ - int *a = (int *)addr; - int mask; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - *a &= ~mask; -} - -static inline void __change_bit(int nr, volatile unsigned long *addr) -{ - int mask; - unsigned long *ADDR = (unsigned long *)addr; - - ADDR += nr >> 5; - mask = 1 << (nr & 31); - *ADDR ^= mask; -} - -static inline int __test_and_set_bit(int nr, volatile unsigned long *addr) -{ - int mask, retval; - volatile unsigned int *a = (volatile unsigned int *)addr; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - retval = (mask & *a) != 0; - *a |= mask; - return retval; -} - -static inline int __test_and_clear_bit(int nr, volatile unsigned long *addr) -{ - int mask, retval; - volatile unsigned int *a = (volatile unsigned int *)addr; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - retval = (mask & *a) != 0; - *a &= ~mask; - return retval; -} - -static inline int __test_and_change_bit(int nr, - volatile unsigned long *addr) -{ - int mask, retval; - volatile unsigned int *a = (volatile unsigned int *)addr; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - retval = (mask & *a) != 0; - *a ^= mask; - return retval; -} - -static inline int __test_bit(int nr, const void *addr) -{ - int *a = (int *)addr; - int mask; - - a += nr >> 5; - mask = 1 << (nr & 0x1f); - return ((mask & *a) != 0); -} - -#ifndef CONFIG_SMP -/* - * This routine doesn't need irq save and restore ops in UP - * context. - */ -static inline int test_bit(int nr, const void *addr) -{ - return __test_bit(nr, addr); -} -#endif +#include <asm-generic/bitops/non-atomic.h> #include <asm-generic/bitops/find.h> #include <asm-generic/bitops/hweight.h> @@ -272,10 +92,10 @@ static inline int test_bit(int nr, const void *addr) #include <asm-generic/bitops/minix.h> -#endif /* __KERNEL__ */ - #include <asm-generic/bitops/fls.h> #include <asm-generic/bitops/__fls.h> #include <asm-generic/bitops/fls64.h> +#endif /* CONFIG_SMP */ + #endif /* _BLACKFIN_BITOPS_H */ |