Viewing file:  irqflags.h (2.16 KB) -rw-r--r--
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#ifndef __ASM_SH_IRQFLAGS_H
#define __ASM_SH_IRQFLAGS_H
static inline void raw_local_irq_enable(void)
{
unsigned long __dummy0, __dummy1;
__asm__ __volatile__ (
"stc sr, %0\n\t"
"and %1, %0\n\t"
#ifdef CONFIG_CPU_HAS_SR_RB
"stc r6_bank, %1\n\t"
"or %1, %0\n\t"
#endif
"ldc %0, sr\n\t"
: "=&r" (__dummy0), "=r" (__dummy1)
: "1" (~0x000000f0)
: "memory"
);
}
static inline void raw_local_irq_disable(void)
{
unsigned long flags;
__asm__ __volatile__ (
"stc sr, %0\n\t"
"or #0xf0, %0\n\t"
"ldc %0, sr\n\t"
: "=&z" (flags)
: /* no inputs */
: "memory"
);
}
static inline void set_bl_bit(void)
{
unsigned long __dummy0, __dummy1;
__asm__ __volatile__ (
"stc sr, %0\n\t"
"or %2, %0\n\t"
"and %3, %0\n\t"
"ldc %0, sr\n\t"
: "=&r" (__dummy0), "=r" (__dummy1)
: "r" (0x10000000), "r" (0xffffff0f)
: "memory"
);
}
static inline void clear_bl_bit(void)
{
unsigned long __dummy0, __dummy1;
__asm__ __volatile__ (
"stc sr, %0\n\t"
"and %2, %0\n\t"
"ldc %0, sr\n\t"
: "=&r" (__dummy0), "=r" (__dummy1)
: "1" (~0x10000000)
: "memory"
);
}
static inline unsigned long __raw_local_save_flags(void)
{
unsigned long flags;
__asm__ __volatile__ (
"stc sr, %0\n\t"
"and #0xf0, %0\n\t"
: "=&z" (flags)
: /* no inputs */
: "memory"
);
return flags;
}
#define raw_local_save_flags(flags) \
do { (flags) = __raw_local_save_flags(); } while (0)
static inline int raw_irqs_disabled_flags(unsigned long flags)
{
return (flags != 0);
}
static inline int raw_irqs_disabled(void)
{
unsigned long flags = __raw_local_save_flags();
return raw_irqs_disabled_flags(flags);
}
static inline unsigned long __raw_local_irq_save(void)
{
unsigned long flags, __dummy;
__asm__ __volatile__ (
"stc sr, %1\n\t"
"mov %1, %0\n\t"
"or #0xf0, %0\n\t"
"ldc %0, sr\n\t"
"mov %1, %0\n\t"
"and #0xf0, %0\n\t"
: "=&z" (flags), "=&r" (__dummy)
: /* no inputs */
: "memory"
);
return flags;
}
#define raw_local_irq_save(flags) \
do { (flags) = __raw_local_irq_save(); } while (0)
static inline void raw_local_irq_restore(unsigned long flags)
{
if ((flags & 0xf0) != 0xf0)
raw_local_irq_enable();
}
#endif /* __ASM_SH_IRQFLAGS_H */
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