1 files changed, 67 insertions, 1 deletions

diff --git a/include/asm-powerpc/qe_ic.h b/include/asm-powerpc/qe_ic.h
index e386fb7e44b0..a779b2c9eaf1 100644
--- a/include/asm-powerpc/qe_ic.h
+++ b/include/asm-powerpc/qe_ic.h
@@ -56,9 +56,75 @@ enum qe_ic_grp_id {
         QE_IC_GRP_RISCB         /* QE interrupt controller RISC group B */
 };
 
-void qe_ic_init(struct device_node *node, unsigned int flags);
+void qe_ic_init(struct device_node *node, unsigned int flags,
+                void (*low_handler)(unsigned int irq, struct irq_desc *desc),
+                void (*high_handler)(unsigned int irq, struct irq_desc *desc));
 void qe_ic_set_highest_priority(unsigned int virq, int high);
 int qe_ic_set_priority(unsigned int virq, unsigned int priority);
 int qe_ic_set_high_priority(unsigned int virq, unsigned int priority, int high);
 
+struct qe_ic;
+unsigned int qe_ic_get_low_irq(struct qe_ic *qe_ic);
+unsigned int qe_ic_get_high_irq(struct qe_ic *qe_ic);
+
+static inline void qe_ic_cascade_low_ipic(unsigned int irq,
+                                          struct irq_desc *desc)
+{
+        struct qe_ic *qe_ic = desc->handler_data;
+        unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
+
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq);
+}
+
+static inline void qe_ic_cascade_high_ipic(unsigned int irq,
+                                           struct irq_desc *desc)
+{
+        struct qe_ic *qe_ic = desc->handler_data;
+        unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
+
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq);
+}
+
+static inline void qe_ic_cascade_low_mpic(unsigned int irq,
+                                          struct irq_desc *desc)
+{
+        struct qe_ic *qe_ic = desc->handler_data;
+        unsigned int cascade_irq = qe_ic_get_low_irq(qe_ic);
+
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq);
+
+        desc->chip->eoi(irq);
+}
+
+static inline void qe_ic_cascade_high_mpic(unsigned int irq,
+                                           struct irq_desc *desc)
+{
+        struct qe_ic *qe_ic = desc->handler_data;
+        unsigned int cascade_irq = qe_ic_get_high_irq(qe_ic);
+
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq);
+
+        desc->chip->eoi(irq);
+}
+
+static inline void qe_ic_cascade_muxed_mpic(unsigned int irq,
+                                            struct irq_desc *desc)
+{
+        struct qe_ic *qe_ic = desc->handler_data;
+        unsigned int cascade_irq;
+
+        cascade_irq = qe_ic_get_high_irq(qe_ic);
+        if (cascade_irq == NO_IRQ)
+                cascade_irq = qe_ic_get_low_irq(qe_ic);
+
+        if (cascade_irq != NO_IRQ)
+                generic_handle_irq(cascade_irq);
+
+        desc->chip->eoi(irq);
+}
+
 #endif /* _ASM_POWERPC_QE_IC_H */