arch/h8300/include/asm/irqflags.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _H8300_IRQFLAGS_H
   3 #define _H8300_IRQFLAGS_H
   4
   5 #ifdef CONFIG_CPU_H8300H
   6 typedef unsigned char h8300flags;
   7
   8 static inline h8300flags arch_local_save_flags(void)
   9 {
  10         h8300flags flags;
  11
  12         __asm__ volatile ("stc ccr,%w0" : "=r" (flags));
  13         return flags;
  14 }
  15
  16 static inline void arch_local_irq_disable(void)
  17 {
  18         __asm__ volatile ("orc  #0xc0,ccr");
  19 }
  20
  21 static inline void arch_local_irq_enable(void)
  22 {
  23         __asm__ volatile ("andc #0x3f,ccr");
  24 }
  25
  26 static inline h8300flags arch_local_irq_save(void)
  27 {
  28         h8300flags flags;
  29
  30         __asm__ volatile ("stc ccr,%w0\n\t"
  31                       "orc  #0xc0,ccr" : "=r" (flags));
  32         return flags;
  33 }
  34
  35 static inline void arch_local_irq_restore(h8300flags flags)
  36 {
  37         __asm__ volatile ("ldc %w0,ccr" : : "r" (flags) : "cc");
  38 }
  39
  40 static inline int arch_irqs_disabled_flags(unsigned long flags)
  41 {
  42         return (flags & 0xc0) == 0xc0;
  43 }
  44 #endif
  45 #ifdef CONFIG_CPU_H8S
  46 typedef unsigned short h8300flags;
  47
  48 static inline h8300flags arch_local_save_flags(void)
  49 {
  50         h8300flags flags;
  51
  52         __asm__ volatile ("stc ccr,%w0\n\tstc exr,%x0" : "=r" (flags));
  53         return flags;
  54 }
  55
  56 static inline void arch_local_irq_disable(void)
  57 {
  58         __asm__ volatile ("orc #0x80,ccr\n\t");
  59 }
  60
  61 static inline void arch_local_irq_enable(void)
  62 {
  63         __asm__ volatile ("andc #0x7f,ccr\n\t"
  64                       "andc #0xf0,exr\n\t");
  65 }
  66
  67 static inline h8300flags arch_local_irq_save(void)
  68 {
  69         h8300flags flags;
  70
  71         __asm__ volatile ("stc ccr,%w0\n\t"
  72                       "stc exr,%x0\n\t"
  73                       "orc  #0x80,ccr\n\t"
  74                       : "=r" (flags));
  75         return flags;
  76 }
  77
  78 static inline void arch_local_irq_restore(h8300flags flags)
  79 {
  80         __asm__ volatile ("ldc %w0,ccr\n\t"
  81                       "ldc %x0,exr"
  82                       : : "r" (flags) : "cc");
  83 }
  84
  85 static inline int arch_irqs_disabled_flags(h8300flags flags)
  86 {
  87         return (flags & 0x0080) == 0x0080;
  88 }
  89
  90 #endif
  91
  92 static inline int arch_irqs_disabled(void)
  93 {
  94         return arch_irqs_disabled_flags(arch_local_save_flags());
  95 }
  96
  97 #endif /* _H8300_IRQFLAGS_H */