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 u_int stopped_cpus; 58 extern volatile u_int 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 mp_naps; 69 extern int mp_napics; 70 extern vm_offset_t cpu_apic_address; 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 struct apic_intmapinfo { 79 int ioapic; 80 int int_pin; 81 volatile void *apic_address; 82 int redirindex; 83 }; 84 extern struct apic_intmapinfo int_to_apicintpin[]; 85 extern struct pcb stoppcbs[]; 86 87 /* functions in mp_machdep.c */ 88 void *permanent_io_mapping(vm_paddr_t); 89 u_int mp_bootaddress (u_int); 90 void mp_start (void); 91 void mp_announce (void); 92 void mp_set_cpuids (int, int); 93 u_int isa_apic_mask (u_int); 94 int isa_apic_irq (int); 95 int pci_apic_irq (int, int, int); 96 int apic_irq (int, int); 97 int next_apic_irq (int); 98 int undirect_isa_irq (int); 99 int undirect_pci_irq (int); 100 int apic_bus_type (int); 101 int apic_src_bus_id (int, int); 102 int apic_src_bus_irq (int, int); 103 int apic_int_type (int, int); 104 int apic_trigger (int, int); 105 int apic_polarity (int, int); 106 void assign_apic_irq (int apic, int intpin, int irq); 107 void revoke_apic_irq (int irq); 108 void init_secondary (void); 109 int stop_cpus (u_int); 110 void ap_init (void); 111 int restart_cpus (u_int); 112 void forward_signal (struct proc *); 113 114 /* global data in mpapic.c */ 115 extern volatile lapic_t *lapic; 116 extern volatile ioapic_t **ioapic; 117 118 /* functions in mpapic.c */ 119 void apic_dump (char*); 120 void apic_initialize (boolean_t); 121 void imen_dump (void); 122 int apic_ipi (int, int, int); 123 void selected_apic_ipi (u_int, int, int); 124 void single_apic_ipi(int cpu, int vector, int delivery_mode); 125 int single_apic_ipi_passive(int cpu, int vector, int delivery_mode); 126 int io_apic_setup (int); 127 void io_apic_setup_intpin (int, int); 128 void io_apic_set_id (int, int); 129 int io_apic_get_id (int); 130 int ext_int_setup (int, int); 131 132 /* functions in mp_madt.c */ 133 vm_paddr_t madt_probe(void); 134 vm_offset_t madt_pass1(vm_paddr_t); 135 int madt_pass2(vm_paddr_t, int); 136 137 #if defined(READY) 138 void clr_io_apic_mask24 (int, u_int32_t); 139 void set_io_apic_mask24 (int, u_int32_t); 140 #endif /* READY */ 141 142 void set_apic_timer (int); 143 int get_apic_timer_frequency(void); 144 int read_apic_timer (void); 145 void u_sleep (int); 146 void cpu_send_ipiq (int); 147 int cpu_send_ipiq_passive (int); 148 149 /* global data in init_smp.c */ 150 extern cpumask_t smp_active_mask; 151 152 #endif /* !LOCORE */ 153 #else /* !SMP */ 154 155 #define smp_active_mask 1 /* smp_active_mask always 1 on UP machines */ 156 157 #endif 158 159 #endif /* _KERNEL */ 160 #endif /* _MACHINE_SMP_H_ */ 161