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: src/sys/i386/include/smp.h,v 1.50.2.5 2001/02/13 22:32:45 tegge Exp $
10 */
11
12 #ifndef _MACHINE_SMP_H_
13 #define _MACHINE_SMP_H_
14
15 #ifdef _KERNEL
16
17 #ifndef LOCORE
18
19 /* XXX wrong header */
20 void initializecpu(int cpu);
21
22 #endif /* LOCORE */
23
24 #ifndef LOCORE
25
26 /*
27 * For sending values to POST displays.
28 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
29 */
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)
39
40
41 #include <machine_base/apic/apicreg.h>
42 #include <machine/pcb.h>
43
44 /* global symbols in mpboot.S */
45 extern char mptramp_start[];
46 extern char mptramp_end[];
47 extern u_int32_t mptramp_pagetables;
48
49 /* functions in mpboot.s */
50 void bootMP (void);
51
52 /* global data in apic_vector.s */
53 extern volatile cpumask_t stopped_cpus;
54 extern volatile cpumask_t started_cpus;
55
56 extern void (*cpustop_restartfunc) (void);
57
58 extern struct pcb stoppcbs[];
59
60 /* functions in mp_machdep.c */
61 u_int mp_bootaddress (u_int);
62 void mp_start (void);
63 void mp_announce (void);
64 void init_secondary (void);
65 int stop_cpus (cpumask_t);
66 void ap_init (void);
67 int restart_cpus (cpumask_t);
68
69 void cpu_send_ipiq (int);
70 int cpu_send_ipiq_passive (int);
71
72 /* global data in init_smp.c */
73 extern cpumask_t smp_active_mask;
74
75 /* Detect CPU topology bits */
76 void detect_cpu_topology(void);
77
78 /* Fix AMD CPU topology related to compute units */
79 int fix_amd_topology(void);
80
81 /* Interface functions for IDs calculation */
82 int get_chip_ID(int cpuid);
83 int get_chip_ID_from_APICID(int apicid);
84 int get_core_number_within_chip(int cpuid);
85 int get_logical_CPU_number_within_core(int cpuid);
86
87 #include <machine_base/apic/lapic.h>
88 static __inline
get_apicid_from_cpuid(int cpuid)89 int get_apicid_from_cpuid(int cpuid) {
90 return CPUID_TO_APICID(cpuid);
91 }
92 static __inline
get_cpuid_from_apicid(int apicid)93 int get_cpuid_from_apicid(int apicid) {
94 return APICID_TO_CPUID(apicid);
95 }
96
97 #endif /* !LOCORE */
98
99 #endif /* _KERNEL */
100 #endif /* _MACHINE_SMP_H_ */
101