1 #ifndef _M68K_IRQFLAGS_H
2 #define _M68K_IRQFLAGS_H
4 #include <linux/types.h>
5 #include <linux/preempt.h>
6 #include <asm/thread_info.h>
9 static inline unsigned long arch_local_save_flags(void)
12 asm volatile ("movew %%sr,%0" : "=d" (flags) : : "memory");
16 static inline void arch_local_irq_disable(void)
18 #ifdef CONFIG_COLDFIRE
21 "ori.l #0x0700,%%d0 \n\t"
25 : "cc", "%d0", "memory");
27 asm volatile ("oriw #0x0700,%%sr" : : : "memory");
31 static inline void arch_local_irq_enable(void)
33 #if defined(CONFIG_COLDFIRE)
36 "andi.l #0xf8ff,%%d0 \n\t"
40 : "cc", "%d0", "memory");
42 # if defined(CONFIG_MMU)
43 if (MACH_IS_Q40 || !hardirq_count())
53 static inline unsigned long arch_local_irq_save(void)
55 unsigned long flags = arch_local_save_flags();
56 arch_local_irq_disable();
60 static inline void arch_local_irq_restore(unsigned long flags)
62 asm volatile ("movew %0,%%sr" : : "d" (flags) : "memory");
65 static inline bool arch_irqs_disabled_flags(unsigned long flags)
68 /* Ignore HSYNC = ipl 2 on Atari */
69 return (flags & ~(ALLOWINT | 0x200)) != 0;
71 return (flags & ~ALLOWINT) != 0;
74 static inline bool arch_irqs_disabled(void)
76 return arch_irqs_disabled_flags(arch_local_save_flags());
79 #endif /* _M68K_IRQFLAGS_H */