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/*-
 * Copyright (c) 1998 Doug Rabson
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 * $FreeBSD: release/9.1.0/sys/ia64/include/md_var.h 209779 2010-07-07 20:07:33Z marcel $
 */

#ifndef _MACHINE_MD_VAR_H_
#define	_MACHINE_MD_VAR_H_

/*
 * Miscellaneous machine-dependent declarations.
 */

struct ia64_fdesc {
	uint64_t	func;
	uint64_t	gp;
};

#define FDESC_FUNC(fn)  (((struct ia64_fdesc *) fn)->func)
#define FDESC_GP(fn)    (((struct ia64_fdesc *) fn)->gp)

/* Convenience macros to decompose CFM & ar.pfs. */
#define	IA64_CFM_SOF(x)		((x) & 0x7f)
#define	IA64_CFM_SOL(x)		(((x) >> 7) & 0x7f)
#define	IA64_CFM_SOR(x)		(((x) >> 14) & 0x0f)
#define	IA64_CFM_RRB_GR(x)	(((x) >> 18) & 0x7f)
#define	IA64_CFM_RRB_FR(x)	(((x) >> 25) & 0x7f)
#define	IA64_CFM_RRB_PR(x)	(((x) >> 32) & 0x3f)

/* Convenience function (inline) to adjust backingstore pointers. */
static __inline uint64_t
ia64_bsp_adjust(uint64_t bsp, int nslots)
{
	int bias = ((unsigned int)bsp & 0x1f8) >> 3;
	nslots += (nslots + bias + 63*8) / 63 - 8;
	return bsp + (nslots << 3);
}

#ifdef _KERNEL

struct _special;
struct thread;
struct trapframe;

/*
 * Return value from ia64_init. Describes stack to switch to.
 */
struct ia64_init_return {
	uint64_t	bspstore;
	uint64_t	sp;
};

extern uint64_t ia64_lapic_addr;

extern long Maxmem;
extern u_int busdma_swi_pending;

void	*acpi_find_table(const char *sig);
void	busdma_swi(void);
int	copyout_regstack(struct thread *, uint64_t *, uint64_t *);
void	cpu_mp_add(u_int, u_int, u_int);
int	do_ast(struct trapframe *);
void	ia32_trap(int, struct trapframe *);
int	ia64_count_cpus(void);
int	ia64_emulate(struct trapframe *, struct thread *);
int	ia64_flush_dirty(struct thread *, struct _special *);
uint64_t ia64_get_hcdp(void);
int	ia64_highfp_drop(struct thread *);
int	ia64_highfp_enable(struct thread *, struct trapframe *);
int	ia64_highfp_save(struct thread *);
int	ia64_highfp_save_ipi(void);
struct ia64_init_return ia64_init(void);
u_int	ia64_itc_freq(void);
void	ia64_probe_sapics(void);
void	ia64_sync_icache(vm_offset_t, vm_size_t);
void	interrupt(struct trapframe *);
void	map_gateway_page(void);
void	map_pal_code(void);
void	map_vhpt(uintptr_t);
void	os_boot_rendez(void);
void	os_mca(void);
int	syscall(struct trapframe *);
void	trap(int, struct trapframe *);
void	trap_panic(int, struct trapframe *);
int	unaligned_fixup(struct trapframe *, struct thread *);

#endif	/* _KERNEL */

#endif /* !_MACHINE_MD_VAR_H_ */