1 files changed, 70 insertions, 0 deletions

diff --git a/include/asm-frv/irq-routing.h b/include/asm-frv/irq-routing.h
new file mode 100644
index 000000000000..686fb2b39d6a
--- /dev/null
+++ b/include/asm-frv/irq-routing.h
@@ -0,0 +1,70 @@
+/* irq-routing.h: multiplexed IRQ routing
+ *
+ * Copyright (C) 2004 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#ifndef _ASM_IRQ_ROUTING_H
+#define _ASM_IRQ_ROUTING_H
+
+#ifndef __ASSEMBLY__
+
+#include <linux/spinlock.h>
+#include <asm/irq.h>
+
+struct irq_source;
+struct irq_level;
+
+/*
+ * IRQ action distribution sets
+ */
+struct irq_group {
+        int                     first_irq;      /* first IRQ distributed here */
+        void (*control)(struct irq_group *group, int index, int on);
+
+        struct irqaction        *actions[NR_IRQ_ACTIONS_PER_GROUP];     /* IRQ action chains */
+        struct irq_source       *sources[NR_IRQ_ACTIONS_PER_GROUP];     /* IRQ sources */
+        int                     disable_cnt[NR_IRQ_ACTIONS_PER_GROUP];  /* disable counts */
+};
+
+/*
+ * IRQ source manager
+ */
+struct irq_source {
+        struct irq_source       *next;
+        struct irq_level        *level;
+        const char              *muxname;
+        volatile void __iomem   *muxdata;
+        unsigned long           irqmask;
+
+        void (*doirq)(struct irq_source *source);
+};
+
+/*
+ * IRQ level management (per CPU IRQ priority / entry vector)
+ */
+struct irq_level {
+        int                     usage;
+        int                     disable_count;
+        unsigned long           flags;          /* current SA_INTERRUPT and SA_SHIRQ settings */
+        spinlock_t              lock;
+        struct irq_source       *sources;
+};
+
+extern struct irq_level frv_irq_levels[16];
+extern struct irq_group *irq_groups[NR_IRQ_GROUPS];
+
+extern void frv_irq_route(struct irq_source *source, int irqlevel);
+extern void frv_irq_route_external(struct irq_source *source, int irq);
+extern void frv_irq_set_group(struct irq_group *group);
+extern void distribute_irqs(struct irq_group *group, unsigned long irqmask);
+extern void route_cpu_irqs(void);
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* _ASM_IRQ_ROUTING_H */