xref: /freebsd/sys/powerpc/include/md_var.h (revision 4a5216a6dc0c3ce4cf5f2d3ee8af0c3ff3402c4f)
1 /*-
2  * Copyright (c) 1998 Doug Rabson
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD$
27  */
28 
29 #ifndef _MACHINE_MD_VAR_H_
30 #define	_MACHINE_MD_VAR_H_
31 
32 /*
33  * Miscellaneous machine-dependent declarations.
34  */
35 
36 extern	char	sigcode[];
37 extern	char	esigcode[];
38 extern	int	szsigcode;
39 extern	long	Maxmem;
40 extern	int	busdma_swi_pending;
41 
42 extern	vm_offset_t	kstack0;
43 extern	vm_offset_t	kstack0_phys;
44 
45 extern	u_long	ns_per_tick;
46 
47 extern	int powerpc_pow_enabled;
48 extern	int cacheline_size;
49 
50 void	__syncicache(void *, int);
51 
52 void	busdma_swi(void);
53 int	is_physical_memory(vm_offset_t addr);
54 int	mem_valid(vm_offset_t addr, int len);
55 
56 void	decr_config(unsigned long);
57 void	decr_init(void);
58 void	decr_tc_init(void);
59 
60 void	cpu_setup(u_int);
61 
62 struct trapframe;
63 void	powerpc_interrupt(struct trapframe *);
64 
65 #endif /* !_MACHINE_MD_VAR_H_ */
66