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/*
 * Copyright (c) 2012, ARM Limited. All rights reserved.
 *       
 * Redistribution and use in source and binary forms, with
 * or without modification, are permitted provided that the
 * following conditions are met:
 *     
 * Redistributions of source code must retain the above
 * copyright notice, this list of conditions and the 
 * following disclaimer.
 *
 * Redistributions in binary form must reproduce the
 * above copyright notice, this list of conditions and 
 * the following disclaimer in the documentation 
 * and/or other materials provided with the distribution.
 *      
 * Neither the name of ARM nor the names of its
 * contributors may be used to endorse or promote products
 * derived from this software without specific prior written
 * permission.                        
 */

#ifndef VGICLIB_H
#define VGICLIB_H

#include "gic_registers.h"

struct overflowint {
	/* This is encoded in the value, but speed optimise by splitting out */
	unsigned int priority;
	unsigned int value;
	struct overflowint *next;
};

struct gic_cpuif {
	unsigned int status;
	unsigned int activepris;	/* Copies of the state from the VGIC itself */
	unsigned int elrsr[2];	/* Copies of Empty list register status registers */
	unsigned int ints[VGIC_LISTENTRIES];

	struct overflowint *overflow;	/* List of overflowed interrupts */
	unsigned int freelist;	/* Bitmask of which list entries are in use */
};

void vgic_init(void);
void vgic_savestate(unsigned int cpu);
void vgic_loadstate(unsigned int cpu);
void vgic_refresh(unsigned int cpu);
void enqueue_interrupt(unsigned int descr, unsigned int cpu);

#endif				/* VGICLIB_H */