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/*
* Port on Texas Instruments TMS320C6x architecture
*
* Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
*
* Large parts taken directly from powerpc.
*
* 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_C6X_IRQ_H
#define _ASM_C6X_IRQ_H
#include <linux/irqdomain.h>
#include <linux/threads.h>
#include <linux/list.h>
#include <linux/radix-tree.h>
#include <asm/percpu.h>
#define irq_canonicalize(irq) (irq)
/*
* The C64X+ core has 16 IRQ vectors. One each is used by Reset and NMI. Two
* are reserved. The remaining 12 vectors are used to route SoC interrupts.
* These interrupt vectors are prioritized with IRQ 4 having the highest
* priority and IRQ 15 having the lowest.
*
* The C64x+ megamodule provides a PIC which combines SoC IRQ sources into a
* single core IRQ vector. There are four combined sources, each of which
* feed into one of the 12 general interrupt vectors. The remaining 8 vectors
* can each route a single SoC interrupt directly.
*/
#define NR_PRIORITY_IRQS 16
/* Total number of virq in the platform */
#define NR_IRQS 256
/* This number is used when no interrupt has been assigned */
#define NO_IRQ 0
extern void __init init_pic_c64xplus(void);
extern void init_IRQ(void);
struct pt_regs;
extern asmlinkage void c6x_do_IRQ(unsigned int prio, struct pt_regs *regs);
extern unsigned long irq_err_count;
#endif /* _ASM_C6X_IRQ_H */
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