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The commit a2be01b (ARM: only include mach/irqs.h for !SPARSE_IRQ)
makes mach/irqs.h only be included for !SPARSE_IRQ build. There are
a nubmer of platforms have FIQ_START defined in mach/irqs.h for FIQ
support.
arch/arm/mach-rpc/include/mach/irqs.h:#define FIQ_START 64
arch/arm/mach-s3c24xx/include/mach/irqs.h:#define FIQ_START IRQ_EINT0
arch/arm/plat-mxc/include/mach/irqs.h:#define FIQ_START 0
If SPARSE_IRQ is enabled for any of these platforms, the following
compile error will be seen.
arch/arm/kernel/fiq.c: In function ‘enable_fiq’:
arch/arm/kernel/fiq.c:127:19: error: ‘FIQ_START’ undeclared (first use in this function)
arch/arm/kernel/fiq.c:127:19: note: each undeclared identifier is reported only once for each function it appears in
arch/arm/kernel/fiq.c: In function ‘disable_fiq’:
arch/arm/kernel/fiq.c:132:20: error: ‘FIQ_START’ undeclared (first use in this function)
The patch changes fiq code to have init_FIQ take FIQ_START from
platforms as a parameter and assign it to variable fiq_start which
is to replace FIQ_START uses in enable_fiq/disable_fiq.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
/*
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* arch/arm/include/asm/mach/irq.h
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*
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* Copyright (C) 1995-2000 Russell King.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ASM_ARM_MACH_IRQ_H
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#define __ASM_ARM_MACH_IRQ_H
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#include <linux/irq.h>
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struct seq_file;
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/*
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* This is internal. Do not use it.
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*/
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extern void init_FIQ(int);
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extern int show_fiq_list(struct seq_file *, int);
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#ifdef CONFIG_MULTI_IRQ_HANDLER
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extern void (*handle_arch_irq)(struct pt_regs *);
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#endif
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/*
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* This is for easy migration, but should be changed in the source
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*/
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#define do_bad_IRQ(irq,desc) \
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do { \
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raw_spin_lock(&desc->lock); \
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handle_bad_irq(irq, desc); \
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raw_spin_unlock(&desc->lock); \
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} while(0)
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#ifndef __ASSEMBLY__
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/*
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* Entry/exit functions for chained handlers where the primary IRQ chip
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* may implement either fasteoi or level-trigger flow control.
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*/
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static inline void chained_irq_enter(struct irq_chip *chip,
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struct irq_desc *desc)
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{
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/* FastEOI controllers require no action on entry. */
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if (chip->irq_eoi)
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return;
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if (chip->irq_mask_ack) {
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chip->irq_mask_ack(&desc->irq_data);
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} else {
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chip->irq_mask(&desc->irq_data);
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if (chip->irq_ack)
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chip->irq_ack(&desc->irq_data);
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}
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}
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static inline void chained_irq_exit(struct irq_chip *chip,
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struct irq_desc *desc)
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{
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if (chip->irq_eoi)
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chip->irq_eoi(&desc->irq_data);
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else
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chip->irq_unmask(&desc->irq_data);
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}
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#endif
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#endif
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