56 lines
1.6 KiB
C
56 lines
1.6 KiB
C
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/*
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* Port on Texas Instruments TMS320C6x architecture
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*
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* Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
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* Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
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*
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* Large parts taken directly from powerpc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef _ASM_C6X_IRQ_H
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#define _ASM_C6X_IRQ_H
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#include <linux/irqdomain.h>
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#include <linux/threads.h>
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#include <linux/list.h>
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#include <linux/radix-tree.h>
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#include <asm/percpu.h>
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#define irq_canonicalize(irq) (irq)
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/*
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* The C64X+ core has 16 IRQ vectors. One each is used by Reset and NMI. Two
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* are reserved. The remaining 12 vectors are used to route SoC interrupts.
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* These interrupt vectors are prioritized with IRQ 4 having the highest
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* priority and IRQ 15 having the lowest.
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*
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* The C64x+ megamodule provides a PIC which combines SoC IRQ sources into a
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* single core IRQ vector. There are four combined sources, each of which
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* feed into one of the 12 general interrupt vectors. The remaining 8 vectors
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* can each route a single SoC interrupt directly.
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*/
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#define NR_PRIORITY_IRQS 16
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#define NR_IRQS_LEGACY NR_PRIORITY_IRQS
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/* Total number of virq in the platform */
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#define NR_IRQS 256
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/* This number is used when no interrupt has been assigned */
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#define NO_IRQ 0
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extern void __init init_pic_c64xplus(void);
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extern void init_IRQ(void);
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struct pt_regs;
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extern asmlinkage void c6x_do_IRQ(unsigned int prio, struct pt_regs *regs);
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extern unsigned long irq_err_count;
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#endif /* _ASM_C6X_IRQ_H */
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