arch/xtensa/include/asm/irq.h

   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 */