smp.h revision 26269 
1/*
2 * ----------------------------------------------------------------------------
3 * "THE BEER-WARE LICENSE" (Revision 42):
4 * <phk@FreeBSD.org> wrote this file.  As long as you retain this notice you
5 * can do whatever you want with this stuff. If we meet some day, and you think
6 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
7 * ----------------------------------------------------------------------------
8 *
9 * $Id: smp.h,v 1.9 1997/05/28 18:44:11 fsmp Exp $
10 *
11 */
12
13#ifndef _MACHINE_SMP_H_
14#define _MACHINE_SMP_H_
15
16#ifdef KERNEL
17
18#if defined(SMP) && !defined(APIC_IO)
19# error APIC_IO required for SMP, add "options APIC_IO" to your config file.
20#endif /* SMP && NCPU */
21
22#if defined(SMP) && !defined(NCPU)
23# define NCPU			2
24#endif /* SMP && NCPU */
25
26#if defined(SMP) || defined(APIC_IO)
27
28#include <machine/apic.h>
29
30/* global data in mpboot.s */
31extern int			bootMP_size;
32
33/* functions in mpboot.s */
34void	bootMP			__P((void));
35
36/* global data in mplock.s */
37extern u_int			mp_lock;
38
39/* functions in mplock.s */
40void	get_mplock		__P((void));
41void	rel_mplock		__P((void));
42void	try_mplock		__P((void));
43
44/* global data in mp_machdep.c */
45extern int			mp_ncpus;
46extern int			mp_naps;
47extern int			mp_nbusses;
48extern int			mp_napics;
49extern int			mp_picmode;
50extern int			mpenabled;
51extern int			boot_cpu_id;
52extern vm_offset_t		cpu_apic_address;
53extern vm_offset_t		io_apic_address[];
54extern u_int32_t		cpu_apic_versions[];
55extern u_int32_t		io_apic_versions[];
56extern int			cpu_num_to_apic_id[];
57extern int			io_num_to_apic_id[];
58extern int			apic_id_to_logical[];
59
60/* functions in mp_machdep.c */
61u_int	mp_bootaddress		__P((u_int));
62int	mp_probe		__P((void));
63void	mp_start		__P((void));
64void	mp_announce		__P((void));
65int	get_isa_apic_irq	__P((int));
66u_int	get_isa_apic_mask	__P((u_int));
67int	undirect_isa_irq	__P((int));
68int	get_eisa_apic_irq	__P((int));
69int	get_pci_apic_irq	__P((int, int, int));
70int	undirect_pci_irq	__P((int));
71int	apic_bus_type		__P((int));
72int	apic_src_bus_id		__P((int, int));
73int	apic_src_bus_irq	__P((int, int));
74int	apic_int_type		__P((int, int));
75int	apic_trigger		__P((int, int));
76int	apic_polarity		__P((int, int));
77void	configure_local_apic	__P((void));
78void	init_secondary		__P((void));
79void	smp_invltlb		__P((void));
80
81/* global data in mpapic.c */
82extern volatile u_int*		apic_base;
83#if 1  /** XXX APIC_STRUCT */
84extern volatile lapic_t*	lapic;
85#endif  /** XXX APIC_STRUCT */
86
87#if defined(MULTIPLE_IOAPICS)
88#error MULTIPLE_IOAPICSXXX
89#else
90extern volatile u_int*		io_apic_base;
91#if 1  /** XXX APIC_STRUCT */
92extern volatile ioapic_t*	ioapic;
93#endif  /** XXX APIC_STRUCT */
94#endif /* MULTIPLE_IOAPICS */
95
96/* functions in mpapic.c */
97void	apic_initialize		__P((int));
98int	apic_ipi		__P((int, int, int));
99int	selected_apic_ipi	__P((u_int, int, int));
100int	io_apic_setup		__P((int));
101int	ext_int_setup		__P((int, int));
102void	write_io_apic_mask24	__P((int, u_int32_t));
103
104#if defined(READY)
105void	clr_io_apic_mask24	__P((int, u_int32_t));
106void	set_io_apic_mask24	__P((int, u_int32_t));
107#endif /* READY */
108
109void	set_apic_timer		__P((int));
110int	read_apic_timer		__P((void));
111void	u_sleep			__P((int));
112
113/* global data in init_smp.c */
114extern int			smp_active;
115extern int			invltlb_ok;
116
117/* in pmap.c FIXME: belongs in pmap.h??? */
118void	pmap_bootstrap_apics	__P((void));
119void	pmap_bootstrap2		__P((void));
120
121#if 0
122/* chicken and egg problem... */
123static __inline unsigned
124cpunumber(void)
125{
126	return (unsigned)ID_TO_CPU((apic_base[APIC_ID] & APIC_ID_MASK) >> 24);
127}
128#else
129/*
130 * we 'borrow' this info from apic.h
131 * this will go away soon...
132 */
133static __inline unsigned
134cpunumber(void)
135{
136#if 0
137	return (unsigned)(apic_id_to_logical[(apic_base[8] & 0x0f000000) >> 24]);
138#else
139	return (unsigned)(apic_id_to_logical[(lapic__id & 0x0f000000) >> 24]);
140#endif
141}
142#endif /* 0 */
143
144#endif /* SMP || APIC_IO */
145#endif /* KERNEL */
146#endif /* _MACHINE_SMP_H_ */
147