arch/sh/include/asm/irqflags_32.h

   1 #ifndef __ASM_SH_IRQFLAGS_32_H
   2 #define __ASM_SH_IRQFLAGS_32_H
   3
   4 static inline void raw_local_irq_enable(void)
   5 {
   6         unsigned long __dummy0, __dummy1;
   7
   8         __asm__ __volatile__ (
   9                 "stc    sr, %0\n\t"
  10                 "and    %1, %0\n\t"
  11 #ifdef CONFIG_CPU_HAS_SR_RB
  12                 "stc    r6_bank, %1\n\t"
  13                 "or     %1, %0\n\t"
  14 #endif
  15                 "ldc    %0, sr\n\t"
  16                 : "=&r" (__dummy0), "=r" (__dummy1)
  17                 : "1" (~0x000000f0)
  18                 : "memory"
  19         );
  20 }
  21
  22 static inline void raw_local_irq_disable(void)
  23 {
  24         unsigned long flags;
  25
  26         __asm__ __volatile__ (
  27                 "stc    sr, %0\n\t"
  28                 "or     #0xf0, %0\n\t"
  29                 "ldc    %0, sr\n\t"
  30                 : "=&z" (flags)
  31                 : /* no inputs */
  32                 : "memory"
  33         );
  34 }
  35
  36 static inline void set_bl_bit(void)
  37 {
  38         unsigned long __dummy0, __dummy1;
  39
  40         __asm__ __volatile__ (
  41                 "stc    sr, %0\n\t"
  42                 "or     %2, %0\n\t"
  43                 "and    %3, %0\n\t"
  44                 "ldc    %0, sr\n\t"
  45                 : "=&r" (__dummy0), "=r" (__dummy1)
  46                 : "r" (0x10000000), "r" (0xffffff0f)
  47                 : "memory"
  48         );
  49 }
  50
  51 static inline void clear_bl_bit(void)
  52 {
  53         unsigned long __dummy0, __dummy1;
  54
  55         __asm__ __volatile__ (
  56                 "stc    sr, %0\n\t"
  57                 "and    %2, %0\n\t"
  58                 "ldc    %0, sr\n\t"
  59                 : "=&r" (__dummy0), "=r" (__dummy1)
  60                 : "1" (~0x10000000)
  61                 : "memory"
  62         );
  63 }
  64
  65 static inline unsigned long __raw_local_save_flags(void)
  66 {
  67         unsigned long flags;
  68
  69         __asm__ __volatile__ (
  70                 "stc    sr, %0\n\t"
  71                 "and    #0xf0, %0\n\t"
  72                 : "=&z" (flags)
  73                 : /* no inputs */
  74                 : "memory"
  75         );
  76
  77         return flags;
  78 }
  79
  80 static inline unsigned long __raw_local_irq_save(void)
  81 {
  82         unsigned long flags, __dummy;
  83
  84         __asm__ __volatile__ (
  85                 "stc    sr, %1\n\t"
  86                 "mov    %1, %0\n\t"
  87                 "or     #0xf0, %0\n\t"
  88                 "ldc    %0, sr\n\t"
  89                 "mov    %1, %0\n\t"
  90                 "and    #0xf0, %0\n\t"
  91                 : "=&z" (flags), "=&r" (__dummy)
  92                 : /* no inputs */
  93                 : "memory"
  94         );
  95
  96         return flags;
  97 }
  98
  99 #endif /* __ASM_SH_IRQFLAGS_32_H */