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/vkernel/include/smp.h,v 1.3 2007/07/02 02:37:04 dillon Exp $
14 #ifndef _MACHINE_SMP_H_
15 #define _MACHINE_SMP_H_
26 * For sending values to POST displays.
27 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps?
29 extern int current_postcode; /** XXX currently in mp_machdep.c */
30 #define POSTCODE(X) current_postcode = (X), \
31 outb(0x80, current_postcode)
32 #define POSTCODE_LO(X) current_postcode &= 0xf0, \
33 current_postcode |= ((X) & 0x0f), \
34 outb(0x80, current_postcode)
35 #define POSTCODE_HI(X) current_postcode &= 0x0f, \
36 current_postcode |= (((X) << 4) & 0xf0), \
37 outb(0x80, current_postcode)
40 #include <machine_base/apic/apicreg.h>
41 #include <machine/pcb.h>
43 /* global data in mpboot.s */
44 extern int bootMP_size;
46 /* functions in mpboot.s */
51 /* global data in apic_vector.s */
52 extern volatile cpumask_t stopped_cpus;
53 extern int optcpus; /* from main() */
54 extern int vkernel_b_arg; /* arg from main() */
55 extern int vkernel_B_arg; /* arg from main() */
58 extern volatile cpumask_t started_cpus;
60 extern volatile cpumask_t checkstate_probed_cpus;
61 extern void (*cpustop_restartfunc) (void);
63 /* functions in apic_ipl.s */
64 u_int io_apic_read (int, int);
65 void io_apic_write (int, int, u_int);
70 /* global data in mp_machdep.c */
71 extern int bsp_apic_ready;
73 extern int mp_nbusses;
75 extern int boot_cpu_id;
76 extern vm_offset_t cpu_apic_address;
77 extern vm_offset_t io_apic_address[];
78 extern u_int32_t cpu_apic_versions[];
79 extern u_int32_t *io_apic_versions;
80 extern int cpu_num_to_apic_id[];
81 extern int io_num_to_apic_id[];
82 extern int apic_id_to_logical[];
86 #define APIC_INTMAPSIZE 24
87 struct apic_intmapinfo {
90 volatile void *apic_address;
93 extern struct apic_intmapinfo int_to_apicintpin[];
94 extern struct pcb stoppcbs[];
99 /* functions in mp_machdep.c */
100 void *permanent_io_mapping(vm_paddr_t);
101 u_int mp_bootaddress (u_int);
104 void mp_start (void);
105 void mp_announce (void);
107 u_int isa_apic_mask (u_int);
108 int isa_apic_irq (int);
109 int pci_apic_irq (int, int, int);
110 int apic_irq (int, int);
111 int next_apic_irq (int);
112 int undirect_isa_irq (int);
113 int undirect_pci_irq (int);
114 int apic_bus_type (int);
115 int apic_src_bus_id (int, int);
116 int apic_src_bus_irq (int, int);
117 int apic_int_type (int, int);
118 int apic_trigger (int, int);
119 int apic_polarity (int, int);
120 void assign_apic_irq (int apic, int intpin, int irq);
121 void revoke_apic_irq (int irq);
122 void init_secondary (void);
124 int stop_cpus (cpumask_t);
126 int restart_cpus (cpumask_t);
128 void forward_signal (struct proc *);
133 /* global data in mpapic.c */
134 extern volatile lapic_t lapic;
135 extern volatile ioapic_t **ioapic;
138 /* functions in mpapic.c */
140 void apic_dump (char*);
141 void apic_initialize (void);
142 void imen_dump (void);
143 int apic_ipi (int, int, int);
144 void selected_apic_ipi (cpumask_t, int, int);
145 void single_apic_ipi(int cpu, int vector, int delivery_mode);
146 int single_apic_ipi_passive(int cpu, int vector, int delivery_mode);
147 int io_apic_setup (int);
148 void io_apic_setup_intpin (int, int);
149 void io_apic_set_id (int, int);
150 int io_apic_get_id (int);
151 int ext_int_setup (int, int);
155 void clr_io_apic_mask24 (int, u_int32_t);
156 void set_io_apic_mask24 (int, u_int32_t);
160 void set_apic_timer (int);
161 int read_apic_timer (void);
164 void cpu_send_ipiq (int);
165 int cpu_send_ipiq_passive (int);
167 /* global data in init_smp.c */
168 extern cpumask_t smp_active_mask;
170 /* Detect CPU topology bits */
171 void detect_cpu_topology(void);
173 /* Interface functions for IDs calculation */
174 int get_chip_ID(int cpuid);
175 int get_core_number_within_chip(int cpuid);
176 int get_logical_CPU_number_within_core(int cpuid);
178 /* Assume that APICID = CPUID for virtual processors */
179 #define get_cpuid_from_apicid(cpuid) cpuid
180 #define get_apicid_from_cpuid(cpuid) cpuid
185 #define smp_active_mask 1 /* smp_active_mask always 1 on UP machines */
190 #endif /* _MACHINE_SMP_H_ */