kernel/irq/settings.h

   1 /*
   2  * Internal header to deal with irq_desc->status which will be renamed
   3  * to irq_desc->settings.
   4  */
   5 enum {
   6         _IRQ_DEFAULT_INIT_FLAGS = IRQ_DEFAULT_INIT_FLAGS,
   7         _IRQ_PER_CPU            = IRQ_PER_CPU,
   8         _IRQ_LEVEL              = IRQ_LEVEL,
   9         _IRQ_NOPROBE            = IRQ_NOPROBE,
  10         _IRQ_NOREQUEST          = IRQ_NOREQUEST,
  11         _IRQ_NOAUTOEN           = IRQ_NOAUTOEN,
  12         _IRQ_MOVE_PCNTXT        = IRQ_MOVE_PCNTXT,
  13         _IRQ_NO_BALANCING       = IRQ_NO_BALANCING,
  14         _IRQ_NESTED_THREAD      = IRQ_NESTED_THREAD,
  15         _IRQF_MODIFY_MASK       = IRQF_MODIFY_MASK,
  16 };
  17
  18 #define IRQ_PER_CPU             GOT_YOU_MORON
  19 #define IRQ_NO_BALANCING        GOT_YOU_MORON
  20 #define IRQ_LEVEL               GOT_YOU_MORON
  21 #define IRQ_NOPROBE             GOT_YOU_MORON
  22 #define IRQ_NOREQUEST           GOT_YOU_MORON
  23 #define IRQ_NOAUTOEN            GOT_YOU_MORON
  24 #define IRQ_NESTED_THREAD       GOT_YOU_MORON
  25 #undef IRQF_MODIFY_MASK
  26 #define IRQF_MODIFY_MASK        GOT_YOU_MORON
  27
  28 static inline void
  29 irq_settings_clr_and_set(struct irq_desc *desc, u32 clr, u32 set)
  30 {
  31         desc->status_use_accessors &= ~(clr & _IRQF_MODIFY_MASK);
  32         desc->status_use_accessors |= (set & _IRQF_MODIFY_MASK);
  33 }
  34
  35 static inline bool irq_settings_is_per_cpu(struct irq_desc *desc)
  36 {
  37         return desc->status_use_accessors & _IRQ_PER_CPU;
  38 }
  39
  40 static inline void irq_settings_set_per_cpu(struct irq_desc *desc)
  41 {
  42         desc->status_use_accessors |= _IRQ_PER_CPU;
  43 }
  44
  45 static inline void irq_settings_set_no_balancing(struct irq_desc *desc)
  46 {
  47         desc->status_use_accessors |= _IRQ_NO_BALANCING;
  48 }
  49
  50 static inline bool irq_settings_has_no_balance_set(struct irq_desc *desc)
  51 {
  52         return desc->status_use_accessors & _IRQ_NO_BALANCING;
  53 }
  54
  55 static inline u32 irq_settings_get_trigger_mask(struct irq_desc *desc)
  56 {
  57         return desc->status_use_accessors & IRQ_TYPE_SENSE_MASK;
  58 }
  59
  60 static inline void
  61 irq_settings_set_trigger_mask(struct irq_desc *desc, u32 mask)
  62 {
  63         desc->status_use_accessors &= ~IRQ_TYPE_SENSE_MASK;
  64         desc->status_use_accessors |= mask & IRQ_TYPE_SENSE_MASK;
  65 }
  66
  67 static inline bool irq_settings_is_level(struct irq_desc *desc)
  68 {
  69         return desc->status_use_accessors & _IRQ_LEVEL;
  70 }
  71
  72 static inline void irq_settings_clr_level(struct irq_desc *desc)
  73 {
  74         desc->status_use_accessors &= ~_IRQ_LEVEL;
  75 }
  76
  77 static inline void irq_settings_set_level(struct irq_desc *desc)
  78 {
  79         desc->status_use_accessors |= _IRQ_LEVEL;
  80 }
  81
  82 static inline bool irq_settings_can_request(struct irq_desc *desc)
  83 {
  84         return !(desc->status_use_accessors & _IRQ_NOREQUEST);
  85 }
  86
  87 static inline void irq_settings_clr_norequest(struct irq_desc *desc)
  88 {
  89         desc->status_use_accessors &= ~_IRQ_NOREQUEST;
  90 }
  91
  92 static inline void irq_settings_set_norequest(struct irq_desc *desc)
  93 {
  94         desc->status_use_accessors |= _IRQ_NOREQUEST;
  95 }
  96
  97 static inline bool irq_settings_can_probe(struct irq_desc *desc)
  98 {
  99         return !(desc->status_use_accessors & _IRQ_NOPROBE);
 100 }
 101
 102 static inline void irq_settings_clr_noprobe(struct irq_desc *desc)
 103 {
 104         desc->status_use_accessors &= ~_IRQ_NOPROBE;
 105 }
 106
 107 static inline void irq_settings_set_noprobe(struct irq_desc *desc)
 108 {
 109         desc->status_use_accessors |= _IRQ_NOPROBE;
 110 }
 111
 112 static inline bool irq_settings_can_move_pcntxt(struct irq_desc *desc)
 113 {
 114         return desc->status_use_accessors & _IRQ_MOVE_PCNTXT;
 115 }
 116
 117 static inline bool irq_settings_can_autoenable(struct irq_desc *desc)
 118 {
 119         return !(desc->status_use_accessors & _IRQ_NOAUTOEN);
 120 }
 121
 122 static inline bool irq_settings_is_nested_thread(struct irq_desc *desc)
 123 {
 124         return desc->status_use_accessors & _IRQ_NESTED_THREAD;
 125 }