1 files changed, 138 insertions, 0 deletions

diff --git a/kernel/irq/settings.h b/kernel/irq/settings.h
new file mode 100644
index 00000000000..0227ad35827
--- /dev/null
+++ b/kernel/irq/settings.h
@@ -0,0 +1,138 @@
+/*
+ * Internal header to deal with irq_desc->status which will be renamed
+ * to irq_desc->settings.
+ */
+enum {
+        _IRQ_DEFAULT_INIT_FLAGS = IRQ_DEFAULT_INIT_FLAGS,
+        _IRQ_PER_CPU            = IRQ_PER_CPU,
+        _IRQ_LEVEL              = IRQ_LEVEL,
+        _IRQ_NOPROBE            = IRQ_NOPROBE,
+        _IRQ_NOREQUEST          = IRQ_NOREQUEST,
+        _IRQ_NOAUTOEN           = IRQ_NOAUTOEN,
+        _IRQ_MOVE_PCNTXT        = IRQ_MOVE_PCNTXT,
+        _IRQ_NO_BALANCING       = IRQ_NO_BALANCING,
+        _IRQ_NESTED_THREAD      = IRQ_NESTED_THREAD,
+        _IRQF_MODIFY_MASK       = IRQF_MODIFY_MASK,
+};
+
+#define IRQ_INPROGRESS          GOT_YOU_MORON
+#define IRQ_REPLAY              GOT_YOU_MORON
+#define IRQ_WAITING             GOT_YOU_MORON
+#define IRQ_DISABLED            GOT_YOU_MORON
+#define IRQ_PENDING             GOT_YOU_MORON
+#define IRQ_MASKED              GOT_YOU_MORON
+#define IRQ_WAKEUP              GOT_YOU_MORON
+#define IRQ_MOVE_PENDING        GOT_YOU_MORON
+#define IRQ_PER_CPU             GOT_YOU_MORON
+#define IRQ_NO_BALANCING        GOT_YOU_MORON
+#define IRQ_AFFINITY_SET        GOT_YOU_MORON
+#define IRQ_LEVEL               GOT_YOU_MORON
+#define IRQ_NOPROBE             GOT_YOU_MORON
+#define IRQ_NOREQUEST           GOT_YOU_MORON
+#define IRQ_NOAUTOEN            GOT_YOU_MORON
+#define IRQ_NESTED_THREAD       GOT_YOU_MORON
+#undef IRQF_MODIFY_MASK
+#define IRQF_MODIFY_MASK        GOT_YOU_MORON
+
+static inline void
+irq_settings_clr_and_set(struct irq_desc *desc, u32 clr, u32 set)
+{
+        desc->status &= ~(clr & _IRQF_MODIFY_MASK);
+        desc->status |= (set & _IRQF_MODIFY_MASK);
+}
+
+static inline bool irq_settings_is_per_cpu(struct irq_desc *desc)
+{
+        return desc->status & _IRQ_PER_CPU;
+}
+
+static inline void irq_settings_set_per_cpu(struct irq_desc *desc)
+{
+        desc->status |= _IRQ_PER_CPU;
+}
+
+static inline void irq_settings_set_no_balancing(struct irq_desc *desc)
+{
+        desc->status |= _IRQ_NO_BALANCING;
+}
+
+static inline bool irq_settings_has_no_balance_set(struct irq_desc *desc)
+{
+        return desc->status & _IRQ_NO_BALANCING;
+}
+
+static inline u32 irq_settings_get_trigger_mask(struct irq_desc *desc)
+{
+        return desc->status & IRQ_TYPE_SENSE_MASK;
+}
+
+static inline void
+irq_settings_set_trigger_mask(struct irq_desc *desc, u32 mask)
+{
+        desc->status &= ~IRQ_TYPE_SENSE_MASK;
+        desc->status |= mask & IRQ_TYPE_SENSE_MASK;
+}
+
+static inline bool irq_settings_is_level(struct irq_desc *desc)
+{
+        return desc->status & _IRQ_LEVEL;
+}
+
+static inline void irq_settings_clr_level(struct irq_desc *desc)
+{
+        desc->status &= ~_IRQ_LEVEL;
+}
+
+static inline void irq_settings_set_level(struct irq_desc *desc)
+{
+        desc->status |= _IRQ_LEVEL;
+}
+
+static inline bool irq_settings_can_request(struct irq_desc *desc)
+{
+        return !(desc->status & _IRQ_NOREQUEST);
+}
+
+static inline void irq_settings_clr_norequest(struct irq_desc *desc)
+{
+        desc->status &= ~_IRQ_NOREQUEST;
+}
+
+static inline void irq_settings_set_norequest(struct irq_desc *desc)
+{
+        desc->status |= _IRQ_NOREQUEST;
+}
+
+static inline bool irq_settings_can_probe(struct irq_desc *desc)
+{
+        return !(desc->status & _IRQ_NOPROBE);
+}
+
+static inline void irq_settings_clr_noprobe(struct irq_desc *desc)
+{
+        desc->status &= ~_IRQ_NOPROBE;
+}
+
+static inline void irq_settings_set_noprobe(struct irq_desc *desc)
+{
+        desc->status |= _IRQ_NOPROBE;
+}
+
+static inline bool irq_settings_can_move_pcntxt(struct irq_desc *desc)
+{
+        return desc->status & _IRQ_MOVE_PCNTXT;
+}
+
+static inline bool irq_settings_can_autoenable(struct irq_desc *desc)
+{
+        return !(desc->status & _IRQ_NOAUTOEN);
+}
+
+static inline bool irq_settings_is_nested_thread(struct irq_desc *desc)
+{
+        return desc->status & _IRQ_NESTED_THREAD;
+}
+
+/* Nothing should touch desc->status from now on */
+#undef status
+#define status          USE_THE_PROPER_WRAPPERS_YOU_MORON