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>
23 unsigned int irq_of_parse_and_map(struct device_node
*dev
, int index
)
27 if (of_irq_map_one(dev
, index
, &oirq
))
30 return oirq
.specifier
[0];
32 EXPORT_SYMBOL_GPL(irq_of_parse_and_map
);
34 static u32 concurrent_irq
;
36 void __irq_entry
do_IRQ(struct pt_regs
*regs
)
39 struct pt_regs
*old_regs
= set_irq_regs(regs
);
45 generic_handle_irq(irq
);
49 pr_debug("next irq: %d\n", irq
);
55 set_irq_regs(old_regs
);
58 int show_interrupts(struct seq_file
*p
, void *v
)
60 int i
= *(loff_t
*) v
, j
;
61 struct irqaction
*action
;
66 for_each_online_cpu(j
)
67 seq_printf(p
, "CPU%-8d", j
);
72 raw_spin_lock_irqsave(&irq_desc
[i
].lock
, flags
);
73 action
= irq_desc
[i
].action
;
76 seq_printf(p
, "%3d: ", i
);
78 seq_printf(p
, "%10u ", kstat_irqs(i
));
80 for_each_online_cpu(j
)
81 seq_printf(p
, "%10u ", kstat_cpu(j
).irqs
[i
]);
83 seq_printf(p
, " %8s", irq_desc
[i
].status
&
84 IRQ_LEVEL
? "level" : "edge");
85 seq_printf(p
, " %8s", irq_desc
[i
].chip
->name
);
86 seq_printf(p
, " %s", action
->name
);
88 for (action
= action
->next
; action
; action
= action
->next
)
89 seq_printf(p
, ", %s", action
->name
);
93 raw_spin_unlock_irqrestore(&irq_desc
[i
].lock
, flags
);
98 /* MS: There is no any advance mapping mechanism. We are using simple 32bit
99 intc without any cascades or any connection that's why mapping is 1:1 */
100 unsigned int irq_create_mapping(struct irq_host
*host
, irq_hw_number_t hwirq
)
104 EXPORT_SYMBOL_GPL(irq_create_mapping
);
106 unsigned int irq_create_of_mapping(struct device_node
*controller
,
107 u32
*intspec
, unsigned int intsize
)
111 EXPORT_SYMBOL_GPL(irq_create_of_mapping
);