2 * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu>
3 * Copyright (C) 2007-2009 PetaLogix
4 * Copyright (C) 2006 Atmark Techno, Inc.
6 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file "COPYING" in the main directory of this archive
11 #include <linux/init.h>
12 #include <linux/ftrace.h>
13 #include <linux/kernel.h>
14 #include <linux/hardirq.h>
15 #include <linux/interrupt.h>
16 #include <linux/irqflags.h>
17 #include <linux/seq_file.h>
18 #include <linux/kernel_stat.h>
19 #include <linux/irq.h>
20 #include <linux/of_irq.h>
24 static u32 concurrent_irq;
26 void __irq_entry do_IRQ(struct pt_regs *regs)
29 struct pt_regs *old_regs = set_irq_regs(regs);
35 generic_handle_irq(irq);
39 pr_debug("next irq: %d\n", irq);
45 set_irq_regs(old_regs);
48 int show_interrupts(struct seq_file *p, void *v)
50 int i = *(loff_t *) v, j;
51 struct irqaction *action;
56 for_each_online_cpu(j)
57 seq_printf(p, "CPU%-8d", j);
62 raw_spin_lock_irqsave(&irq_desc[i].lock, flags);
63 action = irq_desc[i].action;
66 seq_printf(p, "%3d: ", i);
68 seq_printf(p, "%10u ", kstat_irqs(i));
70 for_each_online_cpu(j)
71 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
73 seq_printf(p, " %8s", irq_desc[i].status &
74 IRQ_LEVEL ? "level" : "edge");
75 seq_printf(p, " %8s", irq_desc[i].chip->name);
76 seq_printf(p, " %s", action->name);
78 for (action = action->next; action; action = action->next)
79 seq_printf(p, ", %s", action->name);
83 raw_spin_unlock_irqrestore(&irq_desc[i].lock, flags);
88 /* MS: There is no any advance mapping mechanism. We are using simple 32bit
89 intc without any cascades or any connection that's why mapping is 1:1 */
90 unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq)
94 EXPORT_SYMBOL_GPL(irq_create_mapping);
96 unsigned int irq_create_of_mapping(struct device_node *controller,
97 const u32 *intspec, unsigned int intsize)
101 EXPORT_SYMBOL_GPL(irq_create_of_mapping);