arch/h8300/include/asm/irqflags.h

   1 #ifndef _H8300_IRQFLAGS_H
   2 #define _H8300_IRQFLAGS_H
   3
   4 #ifdef CONFIG_CPU_H8300H
   5 typedef unsigned char h8300flags;
   6
   7 static inline h8300flags arch_local_save_flags(void)
   8 {
   9         h8300flags flags;
  10
  11         __asm__ volatile ("stc ccr,%w0" : "=r" (flags));
  12         return flags;
  13 }
  14
  15 static inline void arch_local_irq_disable(void)
  16 {
  17         __asm__ volatile ("orc  #0xc0,ccr");
  18 }
  19
  20 static inline void arch_local_irq_enable(void)
  21 {
  22         __asm__ volatile ("andc #0x3f,ccr");
  23 }
  24
  25 static inline h8300flags arch_local_irq_save(void)
  26 {
  27         h8300flags flags;
  28
  29         __asm__ volatile ("stc ccr,%w0\n\t"
  30                       "orc  #0xc0,ccr" : "=r" (flags));
  31         return flags;
  32 }
  33
  34 static inline void arch_local_irq_restore(h8300flags flags)
  35 {
  36         __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc");
  37 }
  38
  39 static inline int arch_irqs_disabled_flags(unsigned long flags)
  40 {
  41         return (flags & 0xc0) == 0xc0;
  42 }
  43 #endif
  44 #ifdef CONFIG_CPU_H8S
  45 typedef unsigned short h8300flags;
  46
  47 static inline h8300flags arch_local_save_flags(void)
  48 {
  49         h8300flags flags;
  50
  51         __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags));
  52         return flags;
  53 }
  54
  55 static inline void arch_local_irq_disable(void)
  56 {
  57         __asm__ volatile ("orc #0x80,ccr\n\t");
  58 }
  59
  60 static inline void arch_local_irq_enable(void)
  61 {
  62         __asm__ volatile ("andc #0x7f,ccr\n\t"
  63                       "andc #0xf0,exr\n\t");
  64 }
  65
  66 static inline h8300flags arch_local_irq_save(void)
  67 {
  68         h8300flags flags;
  69
  70         __asm__ volatile ("stc ccr,%w0\n\t"
  71                       "stc exr,%x0\n\t"
  72                       "orc  #0x80,ccr\n\t"
  73                       : "=r" (flags));
  74         return flags;
  75 }
  76
  77 static inline void arch_local_irq_restore(h8300flags flags)
  78 {
  79         __asm__ volatile ("ldc %w0,ccr\n\t"
  80                       "ldc %x0,exr"
  81                       : : "r" (flags) : "cc");
  82 }
  83
  84 static inline int arch_irqs_disabled_flags(h8300flags flags)
  85 {
  86         return (flags & 0x0080) == 0x0080;
  87 }
  88
  89 #endif
  90
  91 static inline int arch_irqs_disabled(void)
  92 {
  93         return arch_irqs_disabled_flags(arch_local_save_flags());
  94 }
  95
  96 #endif /* _H8300_IRQFLAGS_H */