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 * $DragonFly: src/sys/platform/vkernel/include/smp.h,v 1.3 2007/07/02 02:37:04 dillon Exp $ 11 * 12 */ 13 14 #ifndef _MACHINE_SMP_H_ 15 #define _MACHINE_SMP_H_ 16 17 #ifdef _KERNEL 18 19 #if defined(SMP) 20 21 #ifndef LOCORE 22 23 #if 0 24 25 /* 26 * For sending values to POST displays. 27 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 28 */ 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) 38 39 40 #include <machine_base/apic/apicreg.h> 41 #include <machine/pcb.h> 42 43 /* global data in mpboot.s */ 44 extern int bootMP_size; 45 46 /* functions in mpboot.s */ 47 void bootMP (void); 48 49 #endif 50 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() */ 56 57 #if 0 58 extern volatile cpumask_t started_cpus; 59 60 extern volatile cpumask_t checkstate_probed_cpus; 61 extern void (*cpustop_restartfunc) (void); 62 63 /* functions in apic_ipl.s */ 64 u_int io_apic_read (int, int); 65 void io_apic_write (int, int, u_int); 66 67 #endif 68 69 #if 0 70 /* global data in mp_machdep.c */ 71 extern int bsp_apic_ready; 72 extern int mp_naps; 73 extern int mp_nbusses; 74 extern int mp_napics; 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[]; 83 #endif 84 85 #if 0 86 #define APIC_INTMAPSIZE 24 87 struct apic_intmapinfo { 88 int ioapic; 89 int int_pin; 90 volatile void *apic_address; 91 int redirindex; 92 }; 93 extern struct apic_intmapinfo int_to_apicintpin[]; 94 extern struct pcb stoppcbs[]; 95 96 #endif 97 98 #if 0 99 /* functions in mp_machdep.c */ 100 void *permanent_io_mapping(vm_paddr_t); 101 u_int mp_bootaddress (u_int); 102 int mp_probe (void); 103 #endif 104 void mp_start (void); 105 void mp_announce (void); 106 #if 0 107 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); 123 #endif 124 int stop_cpus (cpumask_t); 125 void ap_init (void); 126 int restart_cpus (cpumask_t); 127 #if 0 128 void forward_signal (struct proc *); 129 130 #endif 131 132 #if 0 133 /* global data in mpapic.c */ 134 extern volatile lapic_t lapic; 135 extern volatile ioapic_t **ioapic; 136 #endif 137 138 /* functions in mpapic.c */ 139 #if 0 140 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); 152 #endif 153 154 #if 0 155 void clr_io_apic_mask24 (int, u_int32_t); 156 void set_io_apic_mask24 (int, u_int32_t); 157 #endif 158 159 #if 0 160 void set_apic_timer (int); 161 int read_apic_timer (void); 162 void u_sleep (int); 163 #endif 164 void cpu_send_ipiq (int); 165 int cpu_send_ipiq_passive (int); 166 167 /* global data in init_smp.c */ 168 extern cpumask_t smp_active_mask; 169 170 /* Detect CPU topology bits */ 171 void detect_cpu_topology(void); 172 173 /* 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); 177 178 /* Assume that APICID = CPUID for virtual processors */ 179 #define get_cpuid_from_apicid(cpuid) cpuid 180 #define get_apicid_from_cpuid(cpuid) cpuid 181 182 #endif /* !LOCORE */ 183 #else /* !SMP */ 184 185 #define smp_active_mask 1 /* smp_active_mask always 1 on UP machines */ 186 187 #endif 188 189 #endif /* _KERNEL */ 190 #endif /* _MACHINE_SMP_H_ */ 191