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 #if defined(SMP) 20 21 #ifndef LOCORE 22 23 /* 24 * For sending values to POST displays. 25 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 26 */ 27 extern int current_postcode; /** XXX currently in mp_machdep.c */ 28 #define POSTCODE(X) current_postcode = (X), \ 29 outb(0x80, current_postcode) 30 #define POSTCODE_LO(X) current_postcode &= 0xf0, \ 31 current_postcode |= ((X) & 0x0f), \ 32 outb(0x80, current_postcode) 33 #define POSTCODE_HI(X) current_postcode &= 0x0f, \ 34 current_postcode |= (((X) << 4) & 0xf0), \ 35 outb(0x80, current_postcode) 36 37 38 #include <machine_base/apic/apicreg.h> 39 #include <machine/pcb.h> 40 41 /* global symbols in mpboot.S */ 42 extern char mptramp_start[]; 43 extern char mptramp_end[]; 44 extern u_int32_t mptramp_pagetables; 45 46 /* functions in mpboot.s */ 47 void bootMP (void); 48 49 /* global data in apic_vector.s */ 50 extern volatile u_int stopped_cpus; 51 extern volatile u_int started_cpus; 52 53 extern volatile u_int checkstate_probed_cpus; 54 extern void (*cpustop_restartfunc) (void); 55 56 /* functions in apic_ipl.s */ 57 u_int io_apic_read (int, int); 58 void io_apic_write (int, int, u_int); 59 60 /* global data in mp_machdep.c */ 61 extern int bsp_apic_ready; 62 extern int mp_naps; 63 extern int mp_nbusses; 64 extern int mp_napics; 65 extern int boot_cpu_id; 66 extern vm_offset_t cpu_apic_address; 67 extern vm_offset_t io_apic_address[]; 68 extern u_int32_t cpu_apic_versions[]; 69 extern u_int32_t *io_apic_versions; 70 extern int cpu_num_to_apic_id[]; 71 extern int io_num_to_apic_id[]; 72 extern int apic_id_to_logical[]; 73 #define APIC_INTMAPSIZE 24 74 struct apic_intmapinfo { 75 int ioapic; 76 int int_pin; 77 volatile void *apic_address; 78 int redirindex; 79 }; 80 extern struct apic_intmapinfo int_to_apicintpin[]; 81 extern struct pcb stoppcbs[]; 82 83 /* functions in mp_machdep.c */ 84 void *permanent_io_mapping(vm_paddr_t); 85 u_int mp_bootaddress (u_int); 86 int mp_probe (void); 87 void mp_start (void); 88 void mp_announce (void); 89 u_int isa_apic_mask (u_int); 90 int isa_apic_irq (int); 91 int pci_apic_irq (int, int, int); 92 int apic_irq (int, int); 93 int next_apic_irq (int); 94 int undirect_isa_irq (int); 95 int undirect_pci_irq (int); 96 int apic_bus_type (int); 97 int apic_src_bus_id (int, int); 98 int apic_src_bus_irq (int, int); 99 int apic_int_type (int, int); 100 int apic_trigger (int, int); 101 int apic_polarity (int, int); 102 void assign_apic_irq (int apic, int intpin, int irq); 103 void revoke_apic_irq (int irq); 104 void init_secondary (void); 105 int stop_cpus (u_int); 106 void ap_init (void); 107 int restart_cpus (u_int); 108 void forward_signal (struct proc *); 109 110 /* global data in mpapic.c */ 111 extern volatile lapic_t *lapic; 112 extern volatile ioapic_t **ioapic; 113 114 /* functions in mpapic.c */ 115 void apic_dump (char*); 116 void apic_initialize (boolean_t); 117 void imen_dump (void); 118 int apic_ipi (int, int, int); 119 void selected_apic_ipi (u_int, int, int); 120 void single_apic_ipi(int cpu, int vector, int delivery_mode); 121 int single_apic_ipi_passive(int cpu, int vector, int delivery_mode); 122 int io_apic_setup (int); 123 void io_apic_setup_intpin (int, int); 124 void io_apic_set_id (int, int); 125 int io_apic_get_id (int); 126 int ext_int_setup (int, int); 127 128 #if defined(READY) 129 void clr_io_apic_mask24 (int, u_int32_t); 130 void set_io_apic_mask24 (int, u_int32_t); 131 #endif /* READY */ 132 133 void set_apic_timer (int); 134 int read_apic_timer (void); 135 void u_sleep (int); 136 void cpu_send_ipiq (int); 137 int cpu_send_ipiq_passive (int); 138 139 /* global data in init_smp.c */ 140 extern cpumask_t smp_active_mask; 141 142 #endif /* !LOCORE */ 143 #else /* !SMP */ 144 145 #define smp_active_mask 1 /* smp_active_mask always 1 on UP machines */ 146 147 #endif 148 149 #endif /* _KERNEL */ 150 #endif /* _MACHINE_SMP_H_ */ 151