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/pc32/include/smp.h,v 1.20 2006/11/07 06:43:24 dillon Exp $ 11 * 12 */ 13 14 #ifndef _MACHINE_SMP_H_ 15 #define _MACHINE_SMP_H_ 16 17 #ifdef _KERNEL 18 19 #ifndef LOCORE 20 21 /* XXX wrong header */ 22 void initializecpu(void); 23 24 #endif /* LOCORE */ 25 26 #if defined(SMP) 27 28 #ifndef LOCORE 29 30 /* 31 * For sending values to POST displays. 32 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 33 */ 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) 43 44 45 #include <machine_base/apic/apicreg.h> 46 #include <machine/pcb.h> 47 48 /* global symbols in mpboot.S */ 49 extern char mptramp_start[]; 50 extern char mptramp_end[]; 51 extern u_int32_t mptramp_pagetables; 52 53 /* functions in mpboot.s */ 54 void bootMP (void); 55 56 /* global data in apic_vector.s */ 57 extern volatile cpumask_t stopped_cpus; 58 extern volatile cpumask_t started_cpus; 59 60 extern volatile u_int 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 /* global data in mp_machdep.c */ 68 extern int apic_io_enable; 69 extern int mp_naps; 70 extern int mp_napics; 71 extern vm_offset_t io_apic_address[]; 72 extern u_int32_t cpu_apic_versions[]; 73 extern u_int32_t *io_apic_versions; 74 extern int cpu_num_to_apic_id[]; 75 extern int io_num_to_apic_id[]; 76 extern int apic_id_to_logical[]; 77 #define APIC_INTMAPSIZE 24 78 /* 79 * NOTE: 80 * - Keep size of apic_intmapinfo power of 2 81 * - Update IOAPIC_IM_SZSHIFT after changing apic_intmapinfo size 82 */ 83 struct apic_intmapinfo { 84 int ioapic; 85 int int_pin; 86 volatile void *apic_address; 87 int redirindex; 88 uint32_t flags; /* IOAPIC_IM_FLAG_ */ 89 uint32_t pad[2]; 90 }; 91 #define IOAPIC_IM_SZSHIFT 5 92 93 #define IOAPIC_IM_FLAG_LEVEL 0x1 /* default to edge trigger */ 94 #define IOAPIC_IM_FLAG_MASKED 0x2 95 96 extern struct apic_intmapinfo int_to_apicintpin[]; 97 extern struct pcb stoppcbs[]; 98 99 /* functions in mp_machdep.c */ 100 void *permanent_io_mapping(vm_paddr_t); 101 u_int mp_bootaddress (u_int); 102 void mp_start (void); 103 void mp_announce (void); 104 void mp_set_cpuids (int, int); 105 u_int isa_apic_mask (u_int); 106 int isa_apic_irq (int); 107 int pci_apic_irq (int, int, int); 108 int apic_irq (int, int); 109 int next_apic_irq (int); 110 int undirect_isa_irq (int); 111 int undirect_pci_irq (int); 112 int apic_bus_type (int); 113 int apic_src_bus_id (int, int); 114 int apic_src_bus_irq (int, int); 115 int apic_int_type (int, int); 116 int apic_trigger (int, int); 117 int apic_polarity (int, int); 118 void assign_apic_irq (int apic, int intpin, int irq); 119 void revoke_apic_irq (int irq); 120 void init_secondary (void); 121 int stop_cpus (cpumask_t); 122 void ap_init (void); 123 int restart_cpus (cpumask_t); 124 void forward_signal (struct proc *); 125 126 #ifndef _SYS_QUEUE_H_ 127 #include <sys/queue.h> 128 #endif 129 130 struct lapic_enumerator { 131 int lapic_prio; 132 TAILQ_ENTRY(lapic_enumerator) lapic_link; 133 int (*lapic_probe)(struct lapic_enumerator *); 134 void (*lapic_enumerate)(struct lapic_enumerator *); 135 }; 136 137 #define LAPIC_ENUM_PRIO_MPTABLE 20 138 #define LAPIC_ENUM_PRIO_MADT 40 139 140 /* global data in mpapic.c */ 141 extern volatile lapic_t *lapic; 142 extern volatile ioapic_t **ioapic; 143 144 /* functions in mpapic.c */ 145 void apic_dump (char*); 146 void apic_initialize (boolean_t); 147 void imen_dump (void); 148 int apic_ipi (int, int, int); 149 void selected_apic_ipi (cpumask_t, int, int); 150 void single_apic_ipi(int cpu, int vector, int delivery_mode); 151 int single_apic_ipi_passive(int cpu, int vector, int delivery_mode); 152 int io_apic_setup (int); 153 void io_apic_setup_intpin (int, int); 154 void io_apic_set_id (int, int); 155 int io_apic_get_id (int); 156 int ext_int_setup (int, int); 157 void lapic_config(void); 158 void lapic_enumerator_register(struct lapic_enumerator *); 159 160 #if defined(READY) 161 void clr_io_apic_mask24 (int, u_int32_t); 162 void set_io_apic_mask24 (int, u_int32_t); 163 #endif /* READY */ 164 165 void set_apic_timer (int); 166 int get_apic_timer_frequency(void); 167 int read_apic_timer (void); 168 void u_sleep (int); 169 void cpu_send_ipiq (int); 170 int cpu_send_ipiq_passive (int); 171 172 /* global data in init_smp.c */ 173 extern cpumask_t smp_active_mask; 174 175 #endif /* !LOCORE */ 176 #else /* !SMP */ 177 178 #define smp_active_mask 1 /* smp_active_mask always 1 on UP machines */ 179 180 #endif 181 182 #endif /* _KERNEL */ 183 #endif /* _MACHINE_SMP_H_ */ 184