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 $
12 #ifndef _MACHINE_SMP_H_
13 #define _MACHINE_SMP_H_
19 /* XXX wrong header */
20 void initializecpu(void);
27 * For sending values to POST displays.
28 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
30 extern int current_postcode; /** XXX currently in mp_machdep.c */
31 #define POSTCODE(X) current_postcode = (X), \
32 outb(0x80, current_postcode)
33 #define POSTCODE_LO(X) current_postcode &= 0xf0, \
34 current_postcode |= ((X) & 0x0f), \
35 outb(0x80, current_postcode)
36 #define POSTCODE_HI(X) current_postcode &= 0x0f, \
37 current_postcode |= (((X) << 4) & 0xf0), \
38 outb(0x80, current_postcode)
41 #include <machine_base/apic/apicreg.h>
42 #include <machine/pcb.h>
44 /* global symbols in mpboot.S */
45 extern char mptramp_start[];
46 extern char mptramp_end[];
47 extern u_int32_t mptramp_pagetables;
49 /* functions in mpboot.s */
52 /* global data in apic_vector.s */
53 extern volatile cpumask_t stopped_cpus;
54 extern volatile cpumask_t started_cpus;
56 extern volatile u_int checkstate_probed_cpus;
57 extern void (*cpustop_restartfunc) (void);
59 extern struct pcb stoppcbs[];
61 /* functions in mp_machdep.c */
62 u_int mp_bootaddress (u_int);
64 void mp_announce (void);
65 void init_secondary (void);
66 int stop_cpus (cpumask_t);
68 int restart_cpus (cpumask_t);
69 void forward_signal (struct proc *);
72 void clr_io_apic_mask24 (int, u_int32_t);
73 void set_io_apic_mask24 (int, u_int32_t);
76 void cpu_send_ipiq (int);
77 int cpu_send_ipiq_passive (int);
79 /* global data in init_smp.c */
80 extern cpumask_t smp_active_mask;
82 /* Detect CPU topology bits */
83 void detect_cpu_topology(void);
85 /* Interface functions for IDs calculation */
86 int get_chip_ID(int cpuid);
87 int get_core_number_within_chip(int cpuid);
88 int get_logical_CPU_number_within_core(int cpuid);
90 #include <machine_base/apic/lapic.h>
92 int get_apicid_from_cpuid(int cpuid) {
93 return CPUID_TO_APICID(cpuid);
96 int get_cpuid_from_apicid(int apicid) {
97 return APICID_TO_CPUID(apicid);
103 #endif /* _MACHINE_SMP_H_ */