From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/include/asm/mach/irq.h | 68 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 68 insertions(+) create mode 100644 arch/arm/include/asm/mach/irq.h (limited to 'arch/arm/include/asm/mach/irq.h') diff --git a/arch/arm/include/asm/mach/irq.h b/arch/arm/include/asm/mach/irq.h new file mode 100644 index 00000000..febe495d --- /dev/null +++ b/arch/arm/include/asm/mach/irq.h @@ -0,0 +1,68 @@ +/* + * arch/arm/include/asm/mach/irq.h + * + * Copyright (C) 1995-2000 Russell King. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __ASM_ARM_MACH_IRQ_H +#define __ASM_ARM_MACH_IRQ_H + +#include + +struct seq_file; + +/* + * This is internal. Do not use it. + */ +extern void init_FIQ(void); +extern int show_fiq_list(struct seq_file *, int); + +#ifdef CONFIG_MULTI_IRQ_HANDLER +extern void (*handle_arch_irq)(struct pt_regs *); +#endif + +/* + * This is for easy migration, but should be changed in the source + */ +#define do_bad_IRQ(irq,desc) \ +do { \ + raw_spin_lock(&desc->lock); \ + handle_bad_irq(irq, desc); \ + raw_spin_unlock(&desc->lock); \ +} while(0) + +#ifndef __ASSEMBLY__ +/* + * Entry/exit functions for chained handlers where the primary IRQ chip + * may implement either fasteoi or level-trigger flow control. + */ +static inline void chained_irq_enter(struct irq_chip *chip, + struct irq_desc *desc) +{ + /* FastEOI controllers require no action on entry. */ + if (chip->irq_eoi) + return; + + if (chip->irq_mask_ack) { + chip->irq_mask_ack(&desc->irq_data); + } else { + chip->irq_mask(&desc->irq_data); + if (chip->irq_ack) + chip->irq_ack(&desc->irq_data); + } +} + +static inline void chained_irq_exit(struct irq_chip *chip, + struct irq_desc *desc) +{ + if (chip->irq_eoi) + chip->irq_eoi(&desc->irq_data); + else + chip->irq_unmask(&desc->irq_data); +} +#endif + +#endif -- cgit v1.2.3