2be6bb0c79
This splits up the sh intc core in to something more vaguely resembling a subsystem. Most of the functionality was alread fairly well compartmentalized, and there were only a handful of interdependencies that needed to be resolved in the process. This also serves as future-proofing for the genirq and sparseirq rework, which will make some of the split out functionality wholly generic, allowing things to be killed off in place with minimal migration pain. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* Support for virtual IRQ subgroups debugfs mapping.
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*
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* Copyright (C) 2010 Paul Mundt
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*
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* Modelled after arch/powerpc/kernel/irq.c.
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*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*/
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#include <linux/seq_file.h>
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#include <linux/fs.h>
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#include <linux/init.h>
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#include <linux/irq.h>
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#include <linux/debugfs.h>
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#include "internals.h"
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static int intc_irq_xlate_debug(struct seq_file *m, void *priv)
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{
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int i;
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seq_printf(m, "%-5s %-7s %-15s\n", "irq", "enum", "chip name");
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for (i = 1; i < nr_irqs; i++) {
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struct intc_map_entry *entry = intc_irq_xlate_get(i);
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struct intc_desc_int *desc = entry->desc;
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if (!desc)
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continue;
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seq_printf(m, "%5d ", i);
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seq_printf(m, "0x%05x ", entry->enum_id);
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seq_printf(m, "%-15s\n", desc->chip.name);
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}
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return 0;
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}
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static int intc_irq_xlate_open(struct inode *inode, struct file *file)
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{
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return single_open(file, intc_irq_xlate_debug, inode->i_private);
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}
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static const struct file_operations intc_irq_xlate_fops = {
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.open = intc_irq_xlate_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int __init intc_irq_xlate_init(void)
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{
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/*
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* XXX.. use arch_debugfs_dir here when all of the intc users are
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* converted.
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*/
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if (debugfs_create_file("intc_irq_xlate", S_IRUGO, NULL, NULL,
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&intc_irq_xlate_fops) == NULL)
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return -ENOMEM;
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return 0;
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}
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fs_initcall(intc_irq_xlate_init);
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