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);
36 generic_handle_irq(irq);
40 pr_debug("next irq: %d\n", irq);
46 set_irq_regs(old_regs);
50 int show_interrupts(struct seq_file *p, void *v)
52 int i = *(loff_t *) v, j;
53 struct irq_desc *desc;
54 struct irqaction *action;
59 for_each_online_cpu(j)
60 seq_printf(p, "CPU%-8d", j);
65 desc = irq_to_desc(i);
66 raw_spin_lock_irqsave(&desc->lock, flags);
67 action = desc->action;
70 seq_printf(p, "%3d: ", i);
72 seq_printf(p, "%10u ", kstat_irqs(i));
74 for_each_online_cpu(j)
75 seq_printf(p, "%10u ", kstat_cpu(j).irqs[i]);
77 seq_printf(p, " %8s", desc->status &
78 IRQ_LEVEL ? "level" : "edge");
79 seq_printf(p, " %8s", desc->irq_data.chip->name);
80 seq_printf(p, " %s", action->name);
82 for (action = action->next; action; action = action->next)
83 seq_printf(p, ", %s", action->name);
87 raw_spin_unlock_irqrestore(&desc->lock, flags);
92 /* MS: There is no any advance mapping mechanism. We are using simple 32bit
93 intc without any cascades or any connection that's why mapping is 1:1 */
94 unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq)
98 EXPORT_SYMBOL_GPL(irq_create_mapping);
100 unsigned int irq_create_of_mapping(struct device_node *controller,
101 const u32 *intspec, unsigned int intsize)
105 EXPORT_SYMBOL_GPL(irq_create_of_mapping);