/*
 * Copyright (c) 2005 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_OSREFERENCE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code 
 * as defined in and that are subject to the Apple Public Source License 
 * Version 2.0 (the 'License'). You may not use this file except in 
 * compliance with the License.  The rights granted to you under the 
 * License may not be used to create, or enable the creation or 
 * redistribution of, unlawful or unlicensed copies of an Apple operating 
 * system, or to circumvent, violate, or enable the circumvention or 
 * violation of, any terms of an Apple operating system software license 
 * agreement.
 *
 * Please obtain a copy of the License at 
 * http://www.opensource.apple.com/apsl/ and read it before using this 
 * file.
 *
 * The Original Code and all software distributed under the License are 
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 
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 */

#ifndef _I386_CHUD_XNU_PRIVATE_H_
#define _I386_CHUD_XNU_PRIVATE_H_

#include <kern/queue.h>

#pragma mark **** cpu timer ****

/*
 * Cross-cpu signal request entries are queued on the target cpu's
 * chudcpu_data_t struct. This differs from PPC because i386 doesn't
 * support sending arguments with cross-cpu signals. Hence we have
 * to do it ourselves.
 */ 
typedef struct {
	struct queue_entry	req_entry;	/* Must be first */
	uint32_t		req_type;
	uint32_t		req_code;
	volatile uint32_t	req_sync;
} chudcpu_signal_request_t;

typedef struct {
	void					*cpu_chud_fn_tablep;
	timer_call_data_t			cpu_timer_call;
	uint64_t				t_deadline;
	chudxnu_cpu_timer_callback_func_t	cpu_timer_callback_fn;
	mpqueue_head_t				cpu_request_queue;
} chudcpu_data_t;
/* NB: cpu_chud_fn_tablep is expected to be the first member, at offset 0 */

extern void chudxnu_cpu_signal_handler(void);

#endif /* _I386_CHUD_XNU_PRIVATE_H_ */
