1 /* 2 * include/asm-xtensa/irq.h 3 * 4 * This file is subject to the terms and conditions of the GNU General Public 5 * License. See the file "COPYING" in the main directory of this archive 6 * for more details. 7 * 8 * Copyright (C) 2001 - 2005 Tensilica Inc. 9 */ 10 11 #ifndef _XTENSA_IRQ_H 12 #define _XTENSA_IRQ_H 13 14 #include <linux/init.h> 15 #include <platform/hardware.h> 16 #include <variant/core.h> 17 18 #ifdef CONFIG_VARIANT_IRQ_SWITCH 19 #include <variant/irq.h> 20 #else 21 static inline void variant_irq_enable(unsigned int irq) { } 22 static inline void variant_irq_disable(unsigned int irq) { } 23 #endif 24 25 #ifndef VARIANT_NR_IRQS 26 # define VARIANT_NR_IRQS 0 27 #endif 28 #ifndef PLATFORM_NR_IRQS 29 # define PLATFORM_NR_IRQS 0 30 #endif 31 #define XTENSA_NR_IRQS XCHAL_NUM_INTERRUPTS 32 #define NR_IRQS (XTENSA_NR_IRQS + VARIANT_NR_IRQS + PLATFORM_NR_IRQS + 1) 33 #define XTENSA_PIC_LINUX_IRQ(hwirq) ((hwirq) + 1) 34 35 #if VARIANT_NR_IRQS == 0 36 static inline void variant_init_irq(void) { } 37 #else 38 void variant_init_irq(void) __init; 39 #endif 40 41 static __inline__ int irq_canonicalize(int irq) 42 { 43 return (irq); 44 } 45 46 struct irqaction; 47 struct irq_domain; 48 49 void migrate_irqs(void); 50 int xtensa_irq_domain_xlate(const u32 *intspec, unsigned int intsize, 51 unsigned long int_irq, unsigned long ext_irq, 52 unsigned long *out_hwirq, unsigned int *out_type); 53 int xtensa_irq_map(struct irq_domain *d, unsigned int irq, irq_hw_number_t hw); 54 unsigned xtensa_map_ext_irq(unsigned ext_irq); 55 unsigned xtensa_get_ext_irq_no(unsigned irq); 56 57 #endif /* _XTENSA_IRQ_H */ 58