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 * ----------------------------------------------------------------------------
9 * $FreeBSD: src/sys/i386/include/smp.h,v 1.50.2.5 2001/02/13 22:32:45 tegge Exp $
10 * $DragonFly: src/sys/i386/include/Attic/smp.h,v 1.2 2003/06/17 04:28:36 dillon Exp $
14 #ifndef _MACHINE_SMP_H_
15 #define _MACHINE_SMP_H_
19 #if defined(SMP) && !defined(APIC_IO)
20 # error APIC_IO required for SMP, add "options APIC_IO" to your config file.
21 #endif /* SMP && !APIC_IO */
23 #if defined(SMP) || defined(APIC_IO)
28 * For sending values to POST displays.
29 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
31 extern int current_postcode; /** XXX currently in mp_machdep.c */
32 #define POSTCODE(X) current_postcode = (X), \
33 outb(0x80, current_postcode)
34 #define POSTCODE_LO(X) current_postcode &= 0xf0, \
35 current_postcode |= ((X) & 0x0f), \
36 outb(0x80, current_postcode)
37 #define POSTCODE_HI(X) current_postcode &= 0x0f, \
38 current_postcode |= (((X) << 4) & 0xf0), \
39 outb(0x80, current_postcode)
42 #include <machine/apic.h>
44 /* global data in mpboot.s */
45 extern int bootMP_size;
47 /* functions in mpboot.s */
48 void bootMP __P((void));
50 /* global data in mplock.s */
52 extern u_int isr_lock;
53 #ifdef RECURSIVE_MPINTRLOCK
54 extern u_int mpintr_lock;
55 #endif /* RECURSIVE_MPINTRLOCK */
57 /* functions in mplock.s */
58 void get_mplock __P((void));
59 void rel_mplock __P((void));
60 int try_mplock __P((void));
61 #ifdef RECURSIVE_MPINTRLOCK
62 void get_mpintrlock __P((void));
63 void rel_mpintrlock __P((void));
64 int try_mpintrlock __P((void));
65 #endif /* RECURSIVE_MPINTRLOCK */
67 /* global data in apic_vector.s */
68 extern volatile u_int stopped_cpus;
69 extern volatile u_int started_cpus;
71 extern volatile u_int checkstate_probed_cpus;
72 extern volatile u_int checkstate_need_ast;
73 extern volatile u_int resched_cpus;
74 extern void (*cpustop_restartfunc) __P((void));
76 /* functions in apic_ipl.s */
77 void apic_eoi __P((void));
78 u_int io_apic_read __P((int, int));
79 void io_apic_write __P((int, int, u_int));
81 /* global data in mp_machdep.c */
82 extern int bsp_apic_ready;
85 extern int mp_nbusses;
87 extern int mp_picmode;
88 extern int boot_cpu_id;
89 extern vm_offset_t cpu_apic_address;
90 extern vm_offset_t io_apic_address[];
91 extern u_int32_t cpu_apic_versions[];
92 extern u_int32_t *io_apic_versions;
93 extern int cpu_num_to_apic_id[];
94 extern int io_num_to_apic_id[];
95 extern int apic_id_to_logical[];
96 #define APIC_INTMAPSIZE 24
97 struct apic_intmapinfo {
100 volatile void *apic_address;
103 extern struct apic_intmapinfo int_to_apicintpin[];
104 extern u_int all_cpus;
105 extern struct pcb stoppcbs[];
107 /* functions in mp_machdep.c */
108 u_int mp_bootaddress __P((u_int));
109 int mp_probe __P((void));
110 void mp_start __P((void));
111 void mp_announce __P((void));
112 u_int isa_apic_mask __P((u_int));
113 int isa_apic_irq __P((int));
114 int pci_apic_irq __P((int, int, int));
115 int apic_irq __P((int, int));
116 int next_apic_irq __P((int));
117 int undirect_isa_irq __P((int));
118 int undirect_pci_irq __P((int));
119 int apic_bus_type __P((int));
120 int apic_src_bus_id __P((int, int));
121 int apic_src_bus_irq __P((int, int));
122 int apic_int_type __P((int, int));
123 int apic_trigger __P((int, int));
124 int apic_polarity __P((int, int));
125 void assign_apic_irq __P((int apic, int intpin, int irq));
126 void revoke_apic_irq __P((int irq));
127 void bsp_apic_configure __P((void));
128 void init_secondary __P((void));
129 void smp_invltlb __P((void));
130 int stop_cpus __P((u_int));
131 int restart_cpus __P((u_int));
133 void forward_statclock __P((int pscnt));
134 void forward_hardclock __P((int pscnt));
135 #endif /* BETTER_CLOCK */
136 void forward_signal __P((struct proc *));
137 void forward_roundrobin __P((void));
138 #ifdef APIC_INTR_REORDER
139 void set_lapic_isrloc __P((int, int));
140 #endif /* APIC_INTR_REORDER */
141 void smp_rendezvous_action __P((void));
142 void smp_rendezvous __P((void (*)(void *),
147 /* global data in mpapic.c */
148 extern volatile lapic_t lapic;
149 extern volatile ioapic_t **ioapic;
151 /* functions in mpapic.c */
152 void apic_dump __P((char*));
153 void apic_initialize __P((void));
154 void imen_dump __P((void));
155 int apic_ipi __P((int, int, int));
156 int selected_apic_ipi __P((u_int, int, int));
157 int io_apic_setup __P((int));
158 void io_apic_setup_intpin __P((int, int));
159 void io_apic_set_id __P((int, int));
160 int io_apic_get_id __P((int));
161 int ext_int_setup __P((int, int));
164 void clr_io_apic_mask24 __P((int, u_int32_t));
165 void set_io_apic_mask24 __P((int, u_int32_t));
168 void set_apic_timer __P((int));
169 int read_apic_timer __P((void));
170 void u_sleep __P((int));
172 /* global data in init_smp.c */
173 extern int invltlb_ok;
174 extern int smp_active;
175 extern int smp_started;
176 extern volatile int smp_idle_loops;
179 #else /* !SMP && !APIC_IO */
182 * Create dummy MP lock empties
198 #endif /* _MACHINE_SMP_H_ */