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/platform/pc32/include/smp.h,v 1.20 2006/11/07 06:43:24 dillon Exp $
14 #ifndef _MACHINE_SMP_H_
15 #define _MACHINE_SMP_H_
21 /* XXX wrong header */
22 void initializecpu(void);
27 * Size of APIC ID list.
28 * Also used a MAX size of various other arrays.
37 * For sending values to POST displays.
38 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
40 extern int current_postcode; /** XXX currently in mp_machdep.c */
41 #define POSTCODE(X) current_postcode = (X), \
42 outb(0x80, current_postcode)
43 #define POSTCODE_LO(X) current_postcode &= 0xf0, \
44 current_postcode |= ((X) & 0x0f), \
45 outb(0x80, current_postcode)
46 #define POSTCODE_HI(X) current_postcode &= 0x0f, \
47 current_postcode |= (((X) << 4) & 0xf0), \
48 outb(0x80, current_postcode)
51 #include <machine_base/apic/apicreg.h>
52 #include <machine/pcb.h>
54 /* global symbols in mpboot.S */
55 extern char mptramp_start[];
56 extern char mptramp_end[];
57 extern u_int32_t mptramp_pagetables;
59 /* functions in mpboot.s */
62 /* global data in apic_vector.s */
63 extern volatile cpumask_t stopped_cpus;
64 extern volatile cpumask_t started_cpus;
66 extern volatile u_int checkstate_probed_cpus;
67 extern void (*cpustop_restartfunc) (void);
69 /* global data in mp_machdep.c */
70 extern int imcr_present;
73 #define APIC_INTMAPSIZE 192
76 * - Keep size of apic_intmapinfo power of 2
77 * - Update IOAPIC_IM_SZSHIFT after changing apic_intmapinfo size
79 struct apic_intmapinfo {
82 volatile void *apic_address;
84 uint32_t flags; /* IOAPIC_IM_FLAG_ */
87 #define IOAPIC_IM_SZSHIFT 5
89 #define IOAPIC_IM_FLAG_LEVEL 0x1 /* default to edge trigger */
90 #define IOAPIC_IM_FLAG_MASKED 0x2
92 extern struct apic_intmapinfo int_to_apicintpin[];
93 extern struct pcb stoppcbs[];
95 /* functions in mp_machdep.c */
96 u_int mp_bootaddress (u_int);
98 void mp_announce (void);
99 void init_secondary (void);
100 int stop_cpus (cpumask_t);
102 int restart_cpus (cpumask_t);
103 void forward_signal (struct proc *);
104 int mptable_pci_int_route(int, int, int, int);
105 void mptable_pci_int_dump(void);
108 void clr_io_apic_mask24 (int, u_int32_t);
109 void set_io_apic_mask24 (int, u_int32_t);
112 void cpu_send_ipiq (int);
113 int cpu_send_ipiq_passive (int);
115 /* global data in init_smp.c */
116 extern cpumask_t smp_active_mask;
121 #define smp_active_mask 1 /* smp_active_mask always 1 on UP machines */
126 #endif /* _MACHINE_SMP_H_ */