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authorPaul Mundt <lethal@linux-sh.org>2007-11-21 03:47:15 -0500
committerPaul Mundt <lethal@linux-sh.org>2008-01-27 23:18:53 -0500
commit5db141a9469c8446a179696bc7d374f4cd9b207a (patch)
treee8ef47880573c57d387158b48390dd13c651bfe2 /arch
parent17bfa6397875e6901c3cafdc711437041664d94c (diff)
sh: Mark some IRQ debug options sh32 only.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch')
-rw-r--r--arch/sh/Kconfig.debug4
-rw-r--r--arch/sh64/kernel/irq.c115
2 files changed, 2 insertions, 117 deletions
diff --git a/arch/sh/Kconfig.debug b/arch/sh/Kconfig.debug
index f9ce46f1e6ff..89bc174f25c7 100644
--- a/arch/sh/Kconfig.debug
+++ b/arch/sh/Kconfig.debug
@@ -62,7 +62,7 @@ config DEBUG_BOOTMEM
62 62
63config DEBUG_STACKOVERFLOW 63config DEBUG_STACKOVERFLOW
64 bool "Check for stack overflows" 64 bool "Check for stack overflows"
65 depends on DEBUG_KERNEL 65 depends on DEBUG_KERNEL && SUPERH32
66 help 66 help
67 This option will cause messages to be printed if free stack space 67 This option will cause messages to be printed if free stack space
68 drops below a certain limit. 68 drops below a certain limit.
@@ -88,7 +88,7 @@ config 4KSTACKS
88 88
89config IRQSTACKS 89config IRQSTACKS
90 bool "Use separate kernel stacks when processing interrupts" 90 bool "Use separate kernel stacks when processing interrupts"
91 depends on DEBUG_KERNEL 91 depends on DEBUG_KERNEL && SUPERH32
92 help 92 help
93 If you say Y here the kernel will use separate kernel stacks 93 If you say Y here the kernel will use separate kernel stacks
94 for handling hard and soft interrupts. This can help avoid 94 for handling hard and soft interrupts. This can help avoid
diff --git a/arch/sh64/kernel/irq.c b/arch/sh64/kernel/irq.c
deleted file mode 100644
index 9412b7166700..000000000000
--- a/arch/sh64/kernel/irq.c
+++ /dev/null
@@ -1,115 +0,0 @@
1/*
2 * This file is subject to the terms and conditions of the GNU General Public
3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details.
5 *
6 * arch/sh64/kernel/irq.c
7 *
8 * Copyright (C) 2000, 2001 Paolo Alberelli
9 * Copyright (C) 2003 Paul Mundt
10 *
11 */
12
13/*
14 * IRQs are in fact implemented a bit like signal handlers for the kernel.
15 * Naturally it's not a 1:1 relation, but there are similarities.
16 */
17
18#include <linux/errno.h>
19#include <linux/kernel_stat.h>
20#include <linux/signal.h>
21#include <linux/rwsem.h>
22#include <linux/sched.h>
23#include <linux/ioport.h>
24#include <linux/interrupt.h>
25#include <linux/timex.h>
26#include <linux/slab.h>
27#include <linux/random.h>
28#include <linux/smp.h>
29#include <linux/init.h>
30#include <linux/seq_file.h>
31#include <linux/bitops.h>
32#include <asm/system.h>
33#include <asm/io.h>
34#include <asm/smp.h>
35#include <asm/pgalloc.h>
36#include <asm/delay.h>
37#include <asm/irq.h>
38#include <linux/irq.h>
39
40void ack_bad_irq(unsigned int irq)
41{
42 printk("unexpected IRQ trap at irq %02x\n", irq);
43}
44
45#if defined(CONFIG_PROC_FS)
46int show_interrupts(struct seq_file *p, void *v)
47{
48 int i = *(loff_t *) v, j;
49 struct irqaction * action;
50 unsigned long flags;
51
52 if (i == 0) {
53 seq_puts(p, " ");
54 for_each_online_cpu(j)
55 seq_printf(p, "CPU%d ",j);
56 seq_putc(p, '\n');
57 }
58
59 if (i < NR_IRQS) {
60 spin_lock_irqsave(&irq_desc[i].lock, flags);
61 action = irq_desc[i].action;
62 if (!action)
63 goto unlock;
64 seq_printf(p, "%3d: ",i);
65 seq_printf(p, "%10u ", kstat_irqs(i));
66 seq_printf(p, " %14s", irq_desc[i].chip->typename);
67 seq_printf(p, " %s", action->name);
68
69 for (action=action->next; action; action = action->next)
70 seq_printf(p, ", %s", action->name);
71 seq_putc(p, '\n');
72unlock:
73 spin_unlock_irqrestore(&irq_desc[i].lock, flags);
74 }
75 return 0;
76}
77#endif
78
79/*
80 * do_NMI handles all Non-Maskable Interrupts.
81 */
82asmlinkage void do_NMI(unsigned long vector_num, struct pt_regs * regs)
83{
84 if (regs->sr & 0x40000000)
85 printk("unexpected NMI trap in system mode\n");
86 else
87 printk("unexpected NMI trap in user mode\n");
88
89 /* No statistics */
90}
91
92/*
93 * do_IRQ handles all normal device IRQ's.
94 */
95asmlinkage int do_IRQ(unsigned long vector_num, struct pt_regs * regs)
96{
97 struct pt_regs *old_regs = set_irq_regs(regs);
98 int irq;
99
100 irq_enter();
101
102 irq = irq_demux(vector_num);
103
104 if (irq >= 0) {
105 __do_IRQ(irq);
106 } else {
107 printk("unexpected IRQ trap at vector %03lx\n", vector_num);
108 }
109
110 irq_exit();
111
112 set_irq_regs(old_regs);
113 return 1;
114}
115