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 *
| 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 * $FreeBSD: head/sys/sys/smp.h 75393 2001-04-10 21:34:13Z jhb $
10 *
| 9 * $FreeBSD: head/sys/sys/smp.h 76078 2001-04-27 19:28:25Z jhb $
|
11 */
12
| 10 */
11
|
13#ifndef _MACHINE_SMP_H_
14#define _MACHINE_SMP_H_
| 12#ifndef _SYS_SMP_H_
13#define _SYS_SMP_H_
|
15
16#ifdef _KERNEL
| 14
15#ifdef _KERNEL
|
| 16#include <machine/globaldata.h>
17#include <machine/smp.h>
|
17
| 18
|
18#if defined(SMP) && defined(I386_CPU) && !defined(COMPILING_LINT)
19#error SMP not supported with I386_CPU
20#endif
21#if defined(SMP) && !defined(APIC_IO)
22# error APIC_IO required for SMP, add "options APIC_IO" to your config file.
23#endif /* SMP && !APIC_IO */
| 19#ifndef LOCORE
|
24
| 20
|
25#if defined(SMP) || defined(APIC_IO)
| 21#ifdef SMP
22SLIST_HEAD(cpuhead, globaldata);
|
26
| 23
|
27#ifndef LOCORE
| 24extern struct cpuhead cpuhead;
25extern void (*cpustop_restartfunc)(void);
26extern int mp_ncpus;
27extern int smp_active;
28extern int smp_started;
29extern int smp_cpus;
30extern u_int all_cpus;
31extern volatile u_int started_cpus;
32extern volatile u_int stopped_cpus;
|
28
29/*
| 33
34/*
|
30 * For sending values to POST displays.
31 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
| 35 * Machine dependent functions used to initialize MP support.
36 *
37 * The cpu_mp_probe() should check to see if MP support is present and return
38 * zero if it is not or non-zero if it is. If MP support is present, then
39 * cpu_mp_start() will be called so that MP can be enabled. This function
40 * should do things such as startup secondary processors. It should also
41 * setup mp_ncpus, all_cpus, and smp_cpus. It should also ensure that
42 * smp_active and smp_started are initialized at the appropriate time.
43 * Once cpu_mp_start() returns, machine independent MP startup code will be
44 * executed and a simple message will be output to the console. Finally,
45 * cpu_mp_announce() will be called so that machine dependent messages about
46 * the MP support may be output to the console if desired.
|
32 */
| 47 */
|
33extern int current_postcode; /** XXX currently in mp_machdep.c */
34#define POSTCODE(X) current_postcode = (X), \
35 outb(0x80, current_postcode)
36#define POSTCODE_LO(X) current_postcode &= 0xf0, \
37 current_postcode |= ((X) & 0x0f), \
38 outb(0x80, current_postcode)
39#define POSTCODE_HI(X) current_postcode &= 0x0f, \
40 current_postcode |= (((X) << 4) & 0xf0), \
41 outb(0x80, current_postcode)
| 48void cpu_mp_announce(void);
49int cpu_mp_probe(void);
50void cpu_mp_start(void);
|
42
| 51
|
| 52void forward_signal(struct proc *);
53void forward_roundrobin(void);
54void globaldata_register(struct globaldata *gd);
55struct globaldata *globaldata_find(u_int cpuid);
56int restart_cpus(u_int);
57int stop_cpus(u_int);
58void smp_rendezvous_action(void);
59void smp_rendezvous(void (*)(void *),
60 void (*)(void *),
61 void (*)(void *),
62 void *arg);
|
43
| 63
|
44#include <machine/apic.h>
45
46/* global data in mpboot.s */
47extern int bootMP_size;
48
49/* functions in mpboot.s */
50void bootMP __P((void));
51
52/* global data in apic_vector.s */
53extern volatile u_int stopped_cpus;
54extern volatile u_int started_cpus;
55
56extern volatile u_int checkstate_probed_cpus;
57extern volatile u_int checkstate_need_ast;
58extern volatile u_int resched_cpus;
59extern void (*cpustop_restartfunc) __P((void));
60
61/* global data in mp_machdep.c */
62extern int bsp_apic_ready;
63extern int mp_ncpus;
64extern int mp_naps;
65extern int mp_nbusses;
66extern int mp_napics;
67extern int mp_picmode;
68extern int boot_cpu_id;
69extern vm_offset_t cpu_apic_address;
70extern vm_offset_t io_apic_address[];
71extern u_int32_t cpu_apic_versions[];
72extern u_int32_t *io_apic_versions;
73extern int cpu_num_to_apic_id[];
74extern int io_num_to_apic_id[];
75extern int apic_id_to_logical[];
76#define APIC_INTMAPSIZE 32
77struct apic_intmapinfo {
78 int ioapic;
79 int int_pin;
80 volatile void *apic_address;
81 int redirindex;
82};
83extern struct apic_intmapinfo int_to_apicintpin[];
84extern u_int all_cpus;
85extern struct pcb stoppcbs[];
86
87/* functions in mp_machdep.c */
88u_int mp_bootaddress __P((u_int));
89int mp_probe __P((void));
90void mp_start __P((void));
91void mp_announce __P((void));
92u_int isa_apic_mask __P((u_int));
93int isa_apic_irq __P((int));
94int pci_apic_irq __P((int, int, int));
95int apic_irq __P((int, int));
96int next_apic_irq __P((int));
97int undirect_isa_irq __P((int));
98int undirect_pci_irq __P((int));
99int apic_bus_type __P((int));
100int apic_src_bus_id __P((int, int));
101int apic_src_bus_irq __P((int, int));
102int apic_int_type __P((int, int));
103int apic_trigger __P((int, int));
104int apic_polarity __P((int, int));
105void assign_apic_irq __P((int apic, int intpin, int irq));
106void revoke_apic_irq __P((int irq));
107void bsp_apic_configure __P((void));
108void init_secondary __P((void));
109void smp_invltlb __P((void));
110int stop_cpus __P((u_int));
111int restart_cpus __P((u_int));
112void forward_statclock __P((int pscnt));
113void forward_hardclock __P((int pscnt));
114void forward_signal __P((struct proc *));
115void forward_roundrobin __P((void));
116#ifdef APIC_INTR_REORDER
117void set_lapic_isrloc __P((int, int));
118#endif /* APIC_INTR_REORDER */
119void smp_rendezvous_action __P((void));
120void smp_rendezvous __P((void (*)(void *),
121 void (*)(void *),
122 void (*)(void *),
123 void *arg));
124
125/* global data in mpapic.c */
126extern volatile lapic_t lapic;
127extern volatile ioapic_t **ioapic;
128
129/* functions in mpapic.c */
130void apic_dump __P((char*));
131void apic_initialize __P((void));
132void imen_dump __P((void));
133int apic_ipi __P((int, int, int));
134int selected_apic_ipi __P((u_int, int, int));
135int io_apic_setup __P((int));
136void io_apic_setup_intpin __P((int, int));
137void io_apic_set_id __P((int, int));
138int io_apic_get_id __P((int));
139int ext_int_setup __P((int, int));
140
141void set_apic_timer __P((int));
142int read_apic_timer __P((void));
143void u_sleep __P((int));
144u_int io_apic_read __P((int, int));
145void io_apic_write __P((int, int, u_int));
146
147
148/* global data in init_smp.c */
149extern int invltlb_ok;
150extern int smp_active;
151extern int smp_started;
152extern volatile int smp_idle_loops;
153
| 64#endif /* SMP */
|
154#endif /* !LOCORE */
| 65#endif /* !LOCORE */
|
155#endif /* SMP && !APIC_IO */
156
| |
157#endif /* _KERNEL */
| 66#endif /* _KERNEL */
|
158#endif /* _MACHINE_SMP_H_ */
| 67#endif /* _SYS_SMP_H_ */
|
| |