LXR linux/arch/h8300/include/asm/irqflags.h

   1#ifndef _H8300_IRQFLAGS_H
   2#define _H8300_IRQFLAGS_H
   3
   4#ifdef CONFIG_CPU_H8300H
   5typedef unsigned char h8300flags;
   6
   7static 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
  15static inline void arch_local_irq_disable(void)
  16{
  17        __asm__ volatile ("orc  #0xc0,ccr");
  18}
  19
  20static inline void arch_local_irq_enable(void)
  21{
  22        __asm__ volatile ("andc #0x3f,ccr");
  23}
  24
  25static 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
  34static inline void arch_local_irq_restore(h8300flags flags)
  35{
  36        __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc");
  37}
  38
  39static inline int arch_irqs_disabled_flags(unsigned long flags)
  40{
  41        return (flags & 0xc0) == 0xc0;
  42}
  43#endif
  44#ifdef CONFIG_CPU_H8S
  45typedef unsigned short h8300flags;
  46
  47static 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
  55static inline void arch_local_irq_disable(void)
  56{
  57        __asm__ volatile ("orc #0x80,ccr\n\t");
  58}
  59
  60static inline void arch_local_irq_enable(void)
  61{
  62        __asm__ volatile ("andc #0x7f,ccr\n\t"
  63                      "andc #0xf0,exr\n\t");
  64}
  65
  66static 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
  77static 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
  84static inline int arch_irqs_disabled_flags(h8300flags flags)
  85{
  86        return (flags & 0x0080) == 0x0080;
  87}
  88
  89#endif
  90
  91static inline int arch_irqs_disabled(void)
  92{
  93        return arch_irqs_disabled_flags(arch_local_save_flags());
  94}
  95
  96#endif /* _H8300_IRQFLAGS_H */
  97