You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
124 lines
2.2 KiB
124 lines
2.2 KiB
18 years ago
|
#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 */
|