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 * Copyright (c) 2003-2007 Apple Inc. All rights reserved.
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 * @APPLE_OSREFERENCE_LICENSE_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
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 * may not be used to create, or enable the creation or redistribution of,
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 * circumvent, violate, or enable the circumvention or violation of, any
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 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
 * 
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#ifndef _I386_CHUD_XNU_PRIVATE_H_
#define _I386_CHUD_XNU_PRIVATE_H_

#include <kern/queue.h>

#if 0
#pragma mark **** cpu timer ****
#endif

/*
 * 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_ */