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);
31 * For sending values to POST displays.
32 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
34 extern int current_postcode; /** XXX currently in mp_machdep.c */
35 #define POSTCODE(X) current_postcode = (X), \
36 outb(0x80, current_postcode)
37 #define POSTCODE_LO(X) current_postcode &= 0xf0, \
38 current_postcode |= ((X) & 0x0f), \
39 outb(0x80, current_postcode)
40 #define POSTCODE_HI(X) current_postcode &= 0x0f, \
41 current_postcode |= (((X) << 4) & 0xf0), \
42 outb(0x80, current_postcode)
45 #include <machine_base/apic/apicreg.h>
46 #include <machine/pcb.h>
48 /* global symbols in mpboot.S */
49 extern char mptramp_start[];
50 extern char mptramp_end[];
51 extern u_int32_t mptramp_pagetables;
53 /* functions in mpboot.s */
56 /* global data in apic_vector.s */
57 extern volatile cpumask_t stopped_cpus;
58 extern volatile cpumask_t started_cpus;
60 extern volatile u_int checkstate_probed_cpus;
61 extern void (*cpustop_restartfunc) (void);
63 extern struct pcb stoppcbs[];
65 /* functions in mp_machdep.c */
66 u_int mp_bootaddress (u_int);
68 void mp_announce (void);
69 void init_secondary (void);
70 int stop_cpus (cpumask_t);
72 int restart_cpus (cpumask_t);
73 void forward_signal (struct proc *);
76 void clr_io_apic_mask24 (int, u_int32_t);
77 void set_io_apic_mask24 (int, u_int32_t);
80 void cpu_send_ipiq (int);
81 int cpu_send_ipiq_passive (int);
83 /* global data in init_smp.c */
84 extern cpumask_t smp_active_mask;
86 /* Detect CPU topology bits */
87 void detect_cpu_topology(void);
89 /* Interface functions for IDs calculation */
90 int get_chip_ID(int cpuid);
91 int get_core_number_within_chip(int cpuid);
92 int get_logical_CPU_number_within_core(int cpuid);
94 #include <machine_base/apic/lapic.h>
96 int get_apicid_from_cpuid(int cpuid) {
97 return CPUID_TO_APICID(cpuid);
100 int get_cpuid_from_apicid(int apicid) {
101 return APICID_TO_CPUID(apicid);
107 #define smp_active_mask 1 /* smp_active_mask always 1 on UP machines */
112 #endif /* _MACHINE_SMP_H_ */