arch/sh/include/asm/irqflags_64.h

   1 #ifndef __ASM_SH_IRQFLAGS_64_H
   2 #define __ASM_SH_IRQFLAGS_64_H
   3
   4 #include <cpu/registers.h>
   5
   6 #define SR_MASK_LL      0x00000000000000f0LL
   7 #define SR_BL_LL        0x0000000010000000LL
   8
   9 static inline void raw_local_irq_enable(void)
  10 {
  11         unsigned long long __dummy0, __dummy1 = ~SR_MASK_LL;
  12
  13         __asm__ __volatile__("getcon    " __SR ", %0\n\t"
  14                              "and       %0, %1, %0\n\t"
  15                              "putcon    %0, " __SR "\n\t"
  16                              : "=&r" (__dummy0)
  17                              : "r" (__dummy1));
  18 }
  19
  20 static inline void raw_local_irq_disable(void)
  21 {
  22         unsigned long long __dummy0, __dummy1 = SR_MASK_LL;
  23
  24         __asm__ __volatile__("getcon    " __SR ", %0\n\t"
  25                              "or        %0, %1, %0\n\t"
  26                              "putcon    %0, " __SR "\n\t"
  27                              : "=&r" (__dummy0)
  28                              : "r" (__dummy1));
  29 }
  30
  31 static inline void set_bl_bit(void)
  32 {
  33         unsigned long long __dummy0, __dummy1 = SR_BL_LL;
  34
  35         __asm__ __volatile__("getcon    " __SR ", %0\n\t"
  36                              "or        %0, %1, %0\n\t"
  37                              "putcon    %0, " __SR "\n\t"
  38                              : "=&r" (__dummy0)
  39                              : "r" (__dummy1));
  40
  41 }
  42
  43 static inline void clear_bl_bit(void)
  44 {
  45         unsigned long long __dummy0, __dummy1 = ~SR_BL_LL;
  46
  47         __asm__ __volatile__("getcon    " __SR ", %0\n\t"
  48                              "and       %0, %1, %0\n\t"
  49                              "putcon    %0, " __SR "\n\t"
  50                              : "=&r" (__dummy0)
  51                              : "r" (__dummy1));
  52 }
  53
  54 static inline unsigned long __raw_local_save_flags(void)
  55 {
  56         unsigned long long __dummy = SR_MASK_LL;
  57         unsigned long flags;
  58
  59         __asm__ __volatile__ (
  60                 "getcon " __SR ", %0\n\t"
  61                 "and    %0, %1, %0"
  62                 : "=&r" (flags)
  63                 : "r" (__dummy));
  64
  65         return flags;
  66 }
  67
  68 static inline unsigned long __raw_local_irq_save(void)
  69 {
  70         unsigned long long __dummy0, __dummy1 = SR_MASK_LL;
  71         unsigned long flags;
  72
  73         __asm__ __volatile__ (
  74                 "getcon " __SR ", %1\n\t"
  75                 "or     %1, r63, %0\n\t"
  76                 "or     %1, %2, %1\n\t"
  77                 "putcon %1, " __SR "\n\t"
  78                 "and    %0, %2, %0"
  79                 : "=&r" (flags), "=&r" (__dummy0)
  80                 : "r" (__dummy1));
  81
  82         return flags;
  83 }
  84
  85 #endif /* __ASM_SH_IRQFLAGS_64_H */