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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 */