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 1.41 1998/04/01 20:38:28 tegge 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 int try_mplock __P((void)); 71 #ifdef RECURSIVE_MPINTRLOCK 72 void get_mpintrlock __P((void)); 73 void rel_mpintrlock __P((void)); 74 int try_mpintrlock __P((void)); 75 #endif /* RECURSIVE_MPINTRLOCK */ 76 77 /* global data in apic_vector.s */ 78 extern volatile u_int stopped_cpus; 79 extern volatile u_int started_cpus; 80 81 extern volatile u_int checkstate_probed_cpus; 82 extern volatile u_int checkstate_need_ast; 83 84 /* functions in apic_ipl.s */ 85 void apic_eoi __P((void)); 86 u_int io_apic_read __P((int, int)); 87 void io_apic_write __P((int, int, u_int)); 88 89 /* global data in mp_machdep.c */ 90 extern int bsp_apic_ready; 91 extern int mp_ncpus; 92 extern int mp_naps; 93 extern int mp_nbusses; 94 extern int mp_napics; 95 extern int mp_picmode; 96 extern int boot_cpu_id; 97 extern vm_offset_t cpu_apic_address; 98 extern vm_offset_t io_apic_address[]; 99 extern u_int32_t cpu_apic_versions[]; 100 extern u_int32_t io_apic_versions[]; 101 extern int cpu_num_to_apic_id[]; 102 extern int io_num_to_apic_id[]; 103 extern int apic_id_to_logical[]; 104 extern u_int all_cpus; 105 extern u_char SMP_ioapic[]; 106 107 /* functions in mp_machdep.c */ 108 u_int mp_bootaddress __P((u_int)); 109 int mp_probe __P((void)); 110 void mp_start __P((void)); 111 void mp_announce __P((void)); 112 u_int isa_apic_mask __P((u_int)); 113 int isa_apic_pin __P((int)); 114 int pci_apic_pin __P((int, int, int)); 115 int next_apic_pin __P((int)); 116 int undirect_isa_irq __P((int)); 117 int undirect_pci_irq __P((int)); 118 int apic_bus_type __P((int)); 119 int apic_src_bus_id __P((int, int)); 120 int apic_src_bus_irq __P((int, int)); 121 int apic_int_type __P((int, int)); 122 int apic_trigger __P((int, int)); 123 int apic_polarity __P((int, int)); 124 void bsp_apic_configure __P((void)); 125 void init_secondary __P((void)); 126 void smp_invltlb __P((void)); 127 int stop_cpus __P((u_int)); 128 int restart_cpus __P((u_int)); 129 #ifdef BETTER_CLOCK 130 void forward_statclock __P((int pscnt)); 131 void forward_hardclock __P((int pscnt)); 132 #endif /* BETTER_CLOCK */ 133 void forward_signal __P((struct proc *)); 134 #ifdef APIC_INTR_REORDER 135 void set_lapic_isrloc __P((int, int)); 136 #endif /* APIC_INTR_REORDER */ 137 138 /* global data in mpapic.c */ 139 extern volatile lapic_t lapic; 140 141 #if defined(MULTIPLE_IOAPICS) 142 #error MULTIPLE_IOAPICSXXX 143 #else 144 extern volatile ioapic_t *ioapic[]; 145 #endif /* MULTIPLE_IOAPICS */ 146 147 /* functions in mpapic.c */ 148 void apic_dump __P((char*)); 149 void apic_initialize __P((void)); 150 void imen_dump __P((void)); 151 int apic_ipi __P((int, int, int)); 152 int selected_apic_ipi __P((u_int, int, int)); 153 int io_apic_setup __P((int)); 154 int ext_int_setup __P((int, int)); 155 156 #if defined(READY) 157 void clr_io_apic_mask24 __P((int, u_int32_t)); 158 void set_io_apic_mask24 __P((int, u_int32_t)); 159 #endif /* READY */ 160 161 void set_apic_timer __P((int)); 162 int read_apic_timer __P((void)); 163 void u_sleep __P((int)); 164 165 /* global data in init_smp.c */ 166 extern int invltlb_ok; 167 extern int smp_active; 168 extern volatile int smp_idle_loops; 169 170 /* 'private' global data in locore.s */ 171 extern volatile u_int cpuid; 172 extern volatile u_int cpu_lockid; 173 extern int inside_intr; 174 extern volatile u_int other_cpus; 175 176 #endif /* !LOCORE */ 177 #endif /* SMP || APIC_IO */ 178 #endif /* KERNEL */ 179 #endif /* _MACHINE_SMP_H_ */ 180