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 * $Id: smp.h,v 1.30 1997/08/26 18:10:37 peter Exp $ 10 * 11 */ 12 13 #ifndef _MACHINE_SMP_H_ 14 #define _MACHINE_SMP_H_ 15 16 #ifdef KERNEL 17 18 #if defined(SMP) && !defined(APIC_IO) 19 # error APIC_IO required for SMP, add "options APIC_IO" to your config file. 20 #endif /* SMP && !APIC_IO */ 21 22 /* Number of CPUs. */ 23 #if defined(SMP) && !defined(NCPU) 24 # define NCPU 2 25 #endif /* SMP && NCPU */ 26 27 /* Number of IO APICs. */ 28 #if defined(APIC_IO) && !defined(NAPIC) 29 # define NAPIC 1 30 #endif /* SMP && NAPIC */ 31 32 33 #if defined(SMP) || defined(APIC_IO) 34 35 #ifndef LOCORE 36 37 /* 38 * For sending values to POST displays. 39 * XXX FIXME: where does this really belong, isa.h/isa.c perhaps? 40 */ 41 extern int current_postcode; /** XXX currently in mp_machdep.c */ 42 #define POSTCODE(X) current_postcode = (X), \ 43 outb(0x80, current_postcode) 44 #define POSTCODE_LO(X) current_postcode &= 0xf0, \ 45 current_postcode |= ((X) & 0x0f), \ 46 outb(0x80, current_postcode) 47 #define POSTCODE_HI(X) current_postcode &= 0x0f, \ 48 current_postcode |= (((X) << 4) & 0xf0), \ 49 outb(0x80, current_postcode) 50 51 52 #include <machine/apic.h> 53 54 /* global data in mpboot.s */ 55 extern int bootMP_size; 56 57 /* functions in mpboot.s */ 58 void bootMP __P((void)); 59 60 /* global data in mplock.s */ 61 extern u_int mp_lock; 62 extern u_int isr_lock; 63 #ifdef RECURSIVE_MPINTRLOCK 64 extern u_int mpintr_lock; 65 #endif /* RECURSIVE_MPINTRLOCK */ 66 67 /* functions in mplock.s */ 68 void get_mplock __P((void)); 69 void rel_mplock __P((void)); 70 void try_mplock __P((void)); 71 #ifdef RECURSIVE_MPINTRLOCK 72 void get_mpintrlock __P((void)); 73 void rel_mpintrlock __P((void)); 74 void try_mpintrlock __P((void)); 75 #endif /* RECURSIVE_MPINTRLOCK */ 76 77 /* global data in apic_vector.s */ 78 extern u_int ivectors[]; 79 extern volatile u_int stopped_cpus; 80 extern volatile u_int started_cpus; 81 82 /* global data in apic_ipl.s */ 83 extern u_int vec[]; 84 extern u_int Xintr8254; 85 extern u_int mask8254; 86 87 /* functions in apic_ipl.s */ 88 void vec8254 __P((void)); 89 void INTREN __P((u_int)); 90 void INTRDIS __P((u_int)); 91 void apic_eoi __P((void)); 92 u_int io_apic_read __P((int, int)); 93 void io_apic_write __P((int, int, u_int)); 94 95 /* global data in mp_machdep.c */ 96 extern int bsp_apic_ready; 97 extern int mp_ncpus; 98 extern int mp_naps; 99 extern int mp_nbusses; 100 extern int mp_napics; 101 extern int mp_picmode; 102 extern int boot_cpu_id; 103 extern vm_offset_t cpu_apic_address; 104 extern vm_offset_t io_apic_address[]; 105 extern u_int32_t cpu_apic_versions[]; 106 extern u_int32_t io_apic_versions[]; 107 extern int cpu_num_to_apic_id[]; 108 extern int io_num_to_apic_id[]; 109 extern int apic_id_to_logical[]; 110 extern u_int all_cpus; 111 extern u_char SMP_ioapic[]; 112 113 /* functions in mp_machdep.c */ 114 u_int mp_bootaddress __P((u_int)); 115 int mp_probe __P((void)); 116 void mp_start __P((void)); 117 void mp_announce __P((void)); 118 u_int isa_apic_mask __P((u_int)); 119 int isa_apic_pin __P((int)); 120 int pci_apic_pin __P((int, int, int)); 121 int undirect_isa_irq __P((int)); 122 int undirect_pci_irq __P((int)); 123 int apic_bus_type __P((int)); 124 int apic_src_bus_id __P((int, int)); 125 int apic_src_bus_irq __P((int, int)); 126 int apic_int_type __P((int, int)); 127 int apic_trigger __P((int, int)); 128 int apic_polarity __P((int, int)); 129 void bsp_apic_configure __P((void)); 130 void init_secondary __P((void)); 131 void smp_invltlb __P((void)); 132 int stop_cpus __P((u_int)); 133 int restart_cpus __P((u_int)); 134 135 /* global data in mpapic.c */ 136 extern volatile lapic_t lapic; 137 138 #if defined(MULTIPLE_IOAPICS) 139 #error MULTIPLE_IOAPICSXXX 140 #else 141 extern volatile ioapic_t *ioapic[]; 142 #endif /* MULTIPLE_IOAPICS */ 143 144 /* functions in mpapic.c */ 145 void apic_dump __P((char*)); 146 void apic_initialize __P((void)); 147 void imen_dump __P((void)); 148 int apic_ipi __P((int, int, int)); 149 int selected_apic_ipi __P((u_int, int, int)); 150 int io_apic_setup __P((int)); 151 int ext_int_setup __P((int, int)); 152 153 #if defined(READY) 154 void clr_io_apic_mask24 __P((int, u_int32_t)); 155 void set_io_apic_mask24 __P((int, u_int32_t)); 156 #endif /* READY */ 157 158 void set_apic_timer __P((int)); 159 int read_apic_timer __P((void)); 160 void u_sleep __P((int)); 161 162 /* global data in init_smp.c */ 163 extern int invltlb_ok; 164 extern int smp_active; 165 extern volatile int smp_idle_loops; 166 167 /* 'private' global data in locore.s */ 168 extern volatile u_int cpuid; 169 extern volatile u_int cpu_lockid; 170 extern volatile u_int other_cpus; 171 172 #endif /* !LOCORE */ 173 #endif /* SMP || APIC_IO */ 174 #endif /* KERNEL */ 175 #endif /* _MACHINE_SMP_H_ */ 176