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author | Ingo Molnar <mingo@elte.hu> | 2008-10-03 19:28:46 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-10-03 19:28:46 +0200 |
commit | f68ec0c24755e5cdb779be6240925f2175311d84 (patch) | |
tree | a7b7128e61a8456385d82bd1c7ca5f14eecbf2ca /arch/sh/include/asm/bitops-irq.h | |
parent | 98920dc3d1113b883cbc73e3293446d3525c6042 (diff) | |
parent | 94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff) | |
download | linux-f68ec0c24755e5cdb779be6240925f2175311d84.tar.gz |
Merge commit 'v2.6.27-rc8' into x86/setup
Diffstat (limited to 'arch/sh/include/asm/bitops-irq.h')
-rw-r--r-- | arch/sh/include/asm/bitops-irq.h | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/sh/include/asm/bitops-irq.h b/arch/sh/include/asm/bitops-irq.h new file mode 100644 index 000000000000..653a12750584 --- /dev/null +++ b/arch/sh/include/asm/bitops-irq.h @@ -0,0 +1,91 @@ +#ifndef __ASM_SH_BITOPS_IRQ_H +#define __ASM_SH_BITOPS_IRQ_H + +static inline void set_bit(int nr, volatile void *addr) +{ + int mask; + volatile unsigned int *a = addr; + unsigned long flags; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + local_irq_save(flags); + *a |= mask; + local_irq_restore(flags); +} + +static inline void clear_bit(int nr, volatile void *addr) +{ + int mask; + volatile unsigned int *a = addr; + unsigned long flags; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + local_irq_save(flags); + *a &= ~mask; + local_irq_restore(flags); +} + +static inline void change_bit(int nr, volatile void *addr) +{ + int mask; + volatile unsigned int *a = addr; + unsigned long flags; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + local_irq_save(flags); + *a ^= mask; + local_irq_restore(flags); +} + +static inline int test_and_set_bit(int nr, volatile void *addr) +{ + int mask, retval; + volatile unsigned int *a = addr; + unsigned long flags; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + local_irq_save(flags); + retval = (mask & *a) != 0; + *a |= mask; + local_irq_restore(flags); + + return retval; +} + +static inline int test_and_clear_bit(int nr, volatile void *addr) +{ + int mask, retval; + volatile unsigned int *a = addr; + unsigned long flags; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + local_irq_save(flags); + retval = (mask & *a) != 0; + *a &= ~mask; + local_irq_restore(flags); + + return retval; +} + +static inline int test_and_change_bit(int nr, volatile void *addr) +{ + int mask, retval; + volatile unsigned int *a = addr; + unsigned long flags; + + a += nr >> 5; + mask = 1 << (nr & 0x1f); + local_irq_save(flags); + retval = (mask & *a) != 0; + *a ^= mask; + local_irq_restore(flags); + + return retval; +} + +#endif /* __ASM_SH_BITOPS_IRQ_H */ |