mirror of
https://github.com/torvalds/linux.git
synced 2024-11-17 09:31:50 +00:00
92 lines
1.7 KiB
C
92 lines
1.7 KiB
C
|
#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 */
|